./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--atm--nicstar.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_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/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_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/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_ead3607b-bce1-410b-a59a-1b3534647b8e/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 4a1e17c33569fa40e536cd8c869720d5a80d6c0d7c343e9efbe1ac963f2ae01b --- 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 01:40:55,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:40:55,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:40:55,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:40:56,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:40:56,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:40:56,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:40:56,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:40:56,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:40:56,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:40:56,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:40:56,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:40:56,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:40:56,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:40:56,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:40:56,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:40:56,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:40:56,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:40:56,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:40:56,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:40:56,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:40:56,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:40:56,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:40:56,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:40:56,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:40:56,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:40:56,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:40:56,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:40:56,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:40:56,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:40:56,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:40:56,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:40:56,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:40:56,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:40:56,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:40:56,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:40:56,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:40:56,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:40:56,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:40:56,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:40:56,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:40:56,071 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:40:56,111 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:40:56,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:40:56,115 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:40:56,116 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:40:56,117 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:40:56,117 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:40:56,117 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:40:56,118 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:40:56,118 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:40:56,118 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:40:56,119 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:40:56,120 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:40:56,120 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:40:56,120 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:40:56,120 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:40:56,121 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:40:56,121 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:40:56,121 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:40:56,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:40:56,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:40:56,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:40:56,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:40:56,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:40:56,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:40:56,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:40:56,125 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:40:56,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:40:56,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:40:56,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:40:56,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:40:56,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:40:56,127 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:40:56,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:40:56,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:40:56,128 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:40:56,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:40:56,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:40:56,129 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:40:56,130 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_ead3607b-bce1-410b-a59a-1b3534647b8e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a1e17c33569fa40e536cd8c869720d5a80d6c0d7c343e9efbe1ac963f2ae01b [2022-11-03 01:40:56,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:40:56,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:40:56,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:40:56,517 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:40:56,518 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:40:56,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2022-11-03 01:40:56,604 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/data/e8533b4ef/75565ead301a455bbeea55a697cbfb83/FLAGbcbcb6f3b [2022-11-03 01:40:57,573 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:40:57,574 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2022-11-03 01:40:57,622 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/data/e8533b4ef/75565ead301a455bbeea55a697cbfb83/FLAGbcbcb6f3b [2022-11-03 01:40:58,103 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/data/e8533b4ef/75565ead301a455bbeea55a697cbfb83 [2022-11-03 01:40:58,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:40:58,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:40:58,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:40:58,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:40:58,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:40:58,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:40:58" (1/1) ... [2022-11-03 01:40:58,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bc77211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:40:58, skipping insertion in model container [2022-11-03 01:40:58,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:40:58" (1/1) ... [2022-11-03 01:40:58,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:40:58,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:41:00,834 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_ead3607b-bce1-410b-a59a-1b3534647b8e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i[321673,321686] [2022-11-03 01:41:00,889 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-03 01:41:00,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:41:00,929 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:41:01,480 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_ead3607b-bce1-410b-a59a-1b3534647b8e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i[321673,321686] [2022-11-03 01:41:01,486 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-03 01:41:01,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:41:01,567 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:41:01,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:01 WrapperNode [2022-11-03 01:41:01,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:41:01,570 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:41:01,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:41:01,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:41:01,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:01" (1/1) ... [2022-11-03 01:41:01,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:01" (1/1) ... [2022-11-03 01:41:01,934 INFO L138 Inliner]: procedures = 252, calls = 2297, calls flagged for inlining = 114, calls inlined = 111, statements flattened = 6001 [2022-11-03 01:41:01,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:41:01,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:41:01,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:41:01,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:41:01,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:01" (1/1) ... [2022-11-03 01:41:01,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:01" (1/1) ... [2022-11-03 01:41:01,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:01" (1/1) ... [2022-11-03 01:41:01,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:01" (1/1) ... [2022-11-03 01:41:02,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:01" (1/1) ... [2022-11-03 01:41:02,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:01" (1/1) ... [2022-11-03 01:41:02,236 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:01" (1/1) ... [2022-11-03 01:41:02,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:01" (1/1) ... [2022-11-03 01:41:02,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:41:02,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:41:02,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:41:02,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:41:02,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:01" (1/1) ... [2022-11-03 01:41:02,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:41:02,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:41:02,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:41:02,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:41:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure atm_charge [2022-11-03 01:41:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_charge [2022-11-03 01:41:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-03 01:41:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-03 01:41:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure process_tsq [2022-11-03 01:41:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure process_tsq [2022-11-03 01:41:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:41:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-03 01:41:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-03 01:41:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:41:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 01:41:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 01:41:02,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 01:41:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 01:41:02,388 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-03 01:41:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-03 01:41:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure ns_open [2022-11-03 01:41:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_open [2022-11-03 01:41:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-03 01:41:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-03 01:41:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-03 01:41:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-03 01:41:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure ns_read_sram [2022-11-03 01:41:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_read_sram [2022-11-03 01:41:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure get_scq [2022-11-03 01:41:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure get_scq [2022-11-03 01:41:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:41:02,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:41:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_rx_buf [2022-11-03 01:41:02,391 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_rx_buf [2022-11-03 01:41:02,392 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 01:41:02,392 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 01:41:02,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 01:41:02,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 01:41:02,393 INFO L130 BoogieDeclarations]: Found specification of procedure __net_timestamp [2022-11-03 01:41:02,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __net_timestamp [2022-11-03 01:41:02,393 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 01:41:02,393 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 01:41:02,393 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 01:41:02,393 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 01:41:02,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 01:41:02,394 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 01:41:02,394 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 01:41:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 01:41:02,395 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 01:41:02,396 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 01:41:02,396 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioctl [2022-11-03 01:41:02,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioctl [2022-11-03 01:41:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-03 01:41:02,397 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-03 01:41:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:41:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 01:41:02,398 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 01:41:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure process_rsq [2022-11-03 01:41:02,399 INFO L138 BoogieDeclarations]: Found implementation of procedure process_rsq [2022-11-03 01:41:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:41:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 01:41:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-03 01:41:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-03 01:41:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 01:41:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 01:41:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_alloc_skb [2022-11-03 01:41:02,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_alloc_skb [2022-11-03 01:41:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:41:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 01:41:02,401 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 01:41:02,401 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-11-03 01:41:02,402 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-11-03 01:41:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:41:02,403 INFO L130 BoogieDeclarations]: Found specification of procedure dequeue_sm_buf [2022-11-03 01:41:02,403 INFO L138 BoogieDeclarations]: Found implementation of procedure dequeue_sm_buf [2022-11-03 01:41:02,403 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-03 01:41:02,403 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-03 01:41:02,403 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-03 01:41:02,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-03 01:41:02,404 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 01:41:02,404 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 01:41:02,404 INFO L130 BoogieDeclarations]: Found specification of procedure push_rxbufs [2022-11-03 01:41:02,405 INFO L138 BoogieDeclarations]: Found implementation of procedure push_rxbufs [2022-11-03 01:41:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 01:41:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure ns_phy_get [2022-11-03 01:41:02,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_phy_get [2022-11-03 01:41:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 01:41:02,406 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 01:41:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 01:41:02,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 01:41:02,407 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-03 01:41:02,408 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-03 01:41:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 01:41:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure ns_close [2022-11-03 01:41:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_close [2022-11-03 01:41:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-03 01:41:02,410 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-03 01:41:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-03 01:41:02,410 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-03 01:41:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:41:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 01:41:02,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 01:41:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_read_eprom [2022-11-03 01:41:02,411 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_read_eprom [2022-11-03 01:41:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 01:41:02,412 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 01:41:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure ns_phy_put [2022-11-03 01:41:02,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_phy_put [2022-11-03 01:41:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 01:41:02,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 01:41:02,413 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_iov_buf [2022-11-03 01:41:02,413 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_iov_buf [2022-11-03 01:41:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-03 01:41:02,417 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-03 01:41:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 01:41:02,417 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 01:41:02,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:41:02,419 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 01:41:02,419 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 01:41:02,420 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-03 01:41:02,420 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-03 01:41:02,420 INFO L130 BoogieDeclarations]: Found specification of procedure ns_send [2022-11-03 01:41:02,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_send [2022-11-03 01:41:02,428 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-03 01:41:02,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-03 01:41:02,428 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-03 01:41:02,428 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-03 01:41:02,428 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-03 01:41:02,429 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-03 01:41:02,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 01:41:02,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 01:41:02,429 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-11-03 01:41:02,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-11-03 01:41:02,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 01:41:02,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 01:41:02,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:41:02,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 01:41:02,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 01:41:02,430 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-03 01:41:02,430 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-03 01:41:02,430 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-03 01:41:02,431 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-03 01:41:02,431 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find [2022-11-03 01:41:02,431 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find [2022-11-03 01:41:02,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:41:02,431 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-03 01:41:02,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-03 01:41:02,432 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 01:41:02,432 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 01:41:02,432 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 01:41:02,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 01:41:02,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:41:02,432 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 01:41:02,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-03 01:41:02,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-03 01:41:02,433 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-11-03 01:41:02,433 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-11-03 01:41:02,433 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-03 01:41:02,433 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-03 01:41:02,433 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:41:02,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:41:02,434 INFO L130 BoogieDeclarations]: Found specification of procedure free_scq [2022-11-03 01:41:02,434 INFO L138 BoogieDeclarations]: Found implementation of procedure free_scq [2022-11-03 01:41:02,434 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2022-11-03 01:41:02,434 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2022-11-03 01:41:02,434 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2022-11-03 01:41:02,435 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2022-11-03 01:41:02,435 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_iovec_rx_bufs [2022-11-03 01:41:02,435 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_iovec_rx_bufs [2022-11-03 01:41:02,435 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-03 01:41:02,435 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-03 01:41:02,435 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_remove_one [2022-11-03 01:41:02,436 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_remove_one [2022-11-03 01:41:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2022-11-03 01:41:02,436 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2022-11-03 01:41:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 01:41:02,436 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 01:41:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-03 01:41:02,436 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-03 01:41:02,437 INFO L130 BoogieDeclarations]: Found specification of procedure ns_init_card_error [2022-11-03 01:41:02,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_init_card_error [2022-11-03 01:41:02,438 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 01:41:02,438 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 01:41:02,438 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 01:41:02,438 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 01:41:02,438 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 01:41:02,438 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 01:41:02,439 INFO L130 BoogieDeclarations]: Found specification of procedure ns_write_sram [2022-11-03 01:41:02,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_write_sram [2022-11-03 01:41:02,439 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-03 01:41:02,439 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-03 01:41:02,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:41:02,439 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 01:41:02,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 01:41:02,440 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-03 01:41:02,440 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-03 01:41:02,440 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-03 01:41:02,440 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-03 01:41:02,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:41:02,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:41:02,441 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-03 01:41:02,441 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-03 01:41:03,309 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:41:03,313 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:41:04,365 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 01:41:11,178 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:41:13,074 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:41:13,074 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-03 01:41:13,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:41:13 BoogieIcfgContainer [2022-11-03 01:41:13,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:41:13,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:41:13,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:41:13,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:41:13,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:40:58" (1/3) ... [2022-11-03 01:41:13,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9eae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:41:13, skipping insertion in model container [2022-11-03 01:41:13,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:41:01" (2/3) ... [2022-11-03 01:41:13,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9eae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:41:13, skipping insertion in model container [2022-11-03 01:41:13,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:41:13" (3/3) ... [2022-11-03 01:41:13,097 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2022-11-03 01:41:13,117 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:41:13,117 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:41:13,244 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:41:13,254 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;@27a07bf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:41:13,254 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:41:13,265 INFO L276 IsEmpty]: Start isEmpty. Operand has 1656 states, 1000 states have (on average 1.348) internal successors, (1348), 1071 states have internal predecessors, (1348), 569 states have call successors, (569), 90 states have call predecessors, (569), 89 states have return successors, (563), 552 states have call predecessors, (563), 563 states have call successors, (563) [2022-11-03 01:41:13,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-03 01:41:13,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:41:13,296 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:13,296 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:41:13,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:41:13,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1101798564, now seen corresponding path program 1 times [2022-11-03 01:41:13,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:41:13,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696310136] [2022-11-03 01:41:13,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:41:13,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:41:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:41:14,160 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-03 01:41:14,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:41:14,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696310136] [2022-11-03 01:41:14,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696310136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:41:14,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:41:14,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:41:14,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973550955] [2022-11-03 01:41:14,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:41:14,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:41:14,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:41:14,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:41:14,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:41:14,207 INFO L87 Difference]: Start difference. First operand has 1656 states, 1000 states have (on average 1.348) internal successors, (1348), 1071 states have internal predecessors, (1348), 569 states have call successors, (569), 90 states have call predecessors, (569), 89 states have return successors, (563), 552 states have call predecessors, (563), 563 states have call successors, (563) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-03 01:41:17,515 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 01:41:22,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:26,426 WARN L539 Checker$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 01:41:26,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:41:26,639 INFO L93 Difference]: Finished difference Result 4498 states and 6804 transitions. [2022-11-03 01:41:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:41:26,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 114 [2022-11-03 01:41:26,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:41:26,702 INFO L225 Difference]: With dead ends: 4498 [2022-11-03 01:41:26,702 INFO L226 Difference]: Without dead ends: 2842 [2022-11-03 01:41:26,722 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 01:41:26,725 INFO L413 NwaCegarLoop]: 2754 mSDtfsCounter, 1817 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1819 SdHoareTripleChecker+Valid, 4980 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:41:26,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1819 Valid, 4980 Invalid, 408 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 402 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time] [2022-11-03 01:41:26,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2022-11-03 01:41:26,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 2839. [2022-11-03 01:41:26,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2839 states, 1716 states have (on average 1.3409090909090908) internal successors, (2301), 1826 states have internal predecessors, (2301), 953 states have call successors, (953), 170 states have call predecessors, (953), 169 states have return successors, (954), 930 states have call predecessors, (954), 952 states have call successors, (954) [2022-11-03 01:41:26,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2839 states to 2839 states and 4208 transitions. [2022-11-03 01:41:26,975 INFO L78 Accepts]: Start accepts. Automaton has 2839 states and 4208 transitions. Word has length 114 [2022-11-03 01:41:26,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:41:26,976 INFO L495 AbstractCegarLoop]: Abstraction has 2839 states and 4208 transitions. [2022-11-03 01:41:26,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-03 01:41:26,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2839 states and 4208 transitions. [2022-11-03 01:41:26,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-03 01:41:26,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:41:26,983 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:26,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:41:26,984 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:41:26,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:41:26,985 INFO L85 PathProgramCache]: Analyzing trace with hash 989095935, now seen corresponding path program 1 times [2022-11-03 01:41:26,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:41:26,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472546479] [2022-11-03 01:41:26,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:41:26,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:41:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:41:27,258 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-03 01:41:27,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:41:27,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472546479] [2022-11-03 01:41:27,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472546479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:41:27,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:41:27,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:41:27,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491326541] [2022-11-03 01:41:27,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:41:27,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:41:27,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:41:27,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:41:27,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:41:27,262 INFO L87 Difference]: Start difference. First operand 2839 states and 4208 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 01:41:29,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:31,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:34,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:37,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:38,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:39,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:41:39,747 INFO L93 Difference]: Finished difference Result 7634 states and 11290 transitions. [2022-11-03 01:41:39,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:41:39,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2022-11-03 01:41:39,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:41:39,787 INFO L225 Difference]: With dead ends: 7634 [2022-11-03 01:41:39,788 INFO L226 Difference]: Without dead ends: 4829 [2022-11-03 01:41:39,810 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 01:41:39,816 INFO L413 NwaCegarLoop]: 2638 mSDtfsCounter, 1750 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1751 SdHoareTripleChecker+Valid, 4758 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:41:39,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1751 Valid, 4758 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 407 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time] [2022-11-03 01:41:39,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4829 states. [2022-11-03 01:41:40,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4829 to 4818. [2022-11-03 01:41:40,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4818 states, 2907 states have (on average 1.3316133470932232) internal successors, (3871), 3100 states have internal predecessors, (3871), 1613 states have call successors, (1613), 298 states have call predecessors, (1613), 297 states have return successors, (1627), 1566 states have call predecessors, (1627), 1612 states have call successors, (1627) [2022-11-03 01:41:40,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4818 states to 4818 states and 7111 transitions. [2022-11-03 01:41:40,108 INFO L78 Accepts]: Start accepts. Automaton has 4818 states and 7111 transitions. Word has length 125 [2022-11-03 01:41:40,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:41:40,109 INFO L495 AbstractCegarLoop]: Abstraction has 4818 states and 7111 transitions. [2022-11-03 01:41:40,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 01:41:40,109 INFO L276 IsEmpty]: Start isEmpty. Operand 4818 states and 7111 transitions. [2022-11-03 01:41:40,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-03 01:41:40,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:41:40,123 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 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] [2022-11-03 01:41:40,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:41:40,123 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:41:40,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:41:40,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1144981713, now seen corresponding path program 1 times [2022-11-03 01:41:40,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:41:40,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328392371] [2022-11-03 01:41:40,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:41:40,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:41:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:41:40,705 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-03 01:41:40,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:41:40,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328392371] [2022-11-03 01:41:40,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328392371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:41:40,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:41:40,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:41:40,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089071237] [2022-11-03 01:41:40,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:41:40,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:41:40,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:41:40,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:41:40,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:41:40,711 INFO L87 Difference]: Start difference. First operand 4818 states and 7111 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 01:41:43,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:44,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:45,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:47,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:50,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:52,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:53,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:54,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:41:54,304 INFO L93 Difference]: Finished difference Result 7636 states and 11338 transitions. [2022-11-03 01:41:54,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:41:54,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 137 [2022-11-03 01:41:54,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:41:54,400 INFO L225 Difference]: With dead ends: 7636 [2022-11-03 01:41:54,401 INFO L226 Difference]: Without dead ends: 7633 [2022-11-03 01:41:54,412 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 01:41:54,414 INFO L413 NwaCegarLoop]: 2837 mSDtfsCounter, 2182 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2182 SdHoareTripleChecker+Valid, 4038 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:41:54,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2182 Valid, 4038 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 346 Invalid, 1 Unknown, 0 Unchecked, 13.2s Time] [2022-11-03 01:41:54,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7633 states. [2022-11-03 01:41:54,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7633 to 7568. [2022-11-03 01:41:54,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7568 states, 4507 states have (on average 1.3208342578211671) internal successors, (5953), 4816 states have internal predecessors, (5953), 2547 states have call successors, (2547), 514 states have call predecessors, (2547), 513 states have return successors, (2722), 2454 states have call predecessors, (2722), 2546 states have call successors, (2722) [2022-11-03 01:41:55,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7568 states to 7568 states and 11222 transitions. [2022-11-03 01:41:55,042 INFO L78 Accepts]: Start accepts. Automaton has 7568 states and 11222 transitions. Word has length 137 [2022-11-03 01:41:55,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:41:55,043 INFO L495 AbstractCegarLoop]: Abstraction has 7568 states and 11222 transitions. [2022-11-03 01:41:55,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 01:41:55,044 INFO L276 IsEmpty]: Start isEmpty. Operand 7568 states and 11222 transitions. [2022-11-03 01:41:55,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-03 01:41:55,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:41:55,047 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:55,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:41:55,048 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:41:55,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:41:55,049 INFO L85 PathProgramCache]: Analyzing trace with hash 482125379, now seen corresponding path program 1 times [2022-11-03 01:41:55,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:41:55,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407075884] [2022-11-03 01:41:55,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:41:55,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:41:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:41:55,522 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-03 01:41:55,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:41:55,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407075884] [2022-11-03 01:41:55,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407075884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:41:55,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:41:55,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:41:55,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036180932] [2022-11-03 01:41:55,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:41:55,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:41:55,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:41:55,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:41:55,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:41:55,526 INFO L87 Difference]: Start difference. First operand 7568 states and 11222 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 01:41:58,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:00,677 WARN L539 Checker$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 01:42:03,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:05,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:07,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:14,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:15,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:18,078 WARN L539 Checker$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 01:42:21,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:22,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:24,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:25,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:26,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:42:26,296 INFO L93 Difference]: Finished difference Result 18756 states and 27771 transitions. [2022-11-03 01:42:26,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:42:26,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 139 [2022-11-03 01:42:26,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:42:26,394 INFO L225 Difference]: With dead ends: 18756 [2022-11-03 01:42:26,394 INFO L226 Difference]: Without dead ends: 11222 [2022-11-03 01:42:26,459 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 01:42:26,460 INFO L413 NwaCegarLoop]: 2927 mSDtfsCounter, 1740 mSDsluCounter, 8672 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1740 SdHoareTripleChecker+Valid, 10982 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:42:26,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1740 Valid, 10982 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 860 Invalid, 4 Unknown, 0 Unchecked, 30.2s Time] [2022-11-03 01:42:26,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11222 states. [2022-11-03 01:42:27,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11222 to 11193. [2022-11-03 01:42:27,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11193 states, 6659 states have (on average 1.316864394053161) internal successors, (8769), 7128 states have internal predecessors, (8769), 3757 states have call successors, (3757), 774 states have call predecessors, (3757), 776 states have return successors, (4022), 3612 states have call predecessors, (4022), 3756 states have call successors, (4022) [2022-11-03 01:42:27,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11193 states to 11193 states and 16548 transitions. [2022-11-03 01:42:27,280 INFO L78 Accepts]: Start accepts. Automaton has 11193 states and 16548 transitions. Word has length 139 [2022-11-03 01:42:27,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:42:27,281 INFO L495 AbstractCegarLoop]: Abstraction has 11193 states and 16548 transitions. [2022-11-03 01:42:27,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 01:42:27,281 INFO L276 IsEmpty]: Start isEmpty. Operand 11193 states and 16548 transitions. [2022-11-03 01:42:27,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-03 01:42:27,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:42:27,286 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:42:27,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:42:27,287 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:42:27,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:42:27,287 INFO L85 PathProgramCache]: Analyzing trace with hash 810772507, now seen corresponding path program 1 times [2022-11-03 01:42:27,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:42:27,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173921779] [2022-11-03 01:42:27,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:42:27,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:42:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:42:27,661 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-03 01:42:27,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:42:27,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173921779] [2022-11-03 01:42:27,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173921779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:42:27,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:42:27,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:42:27,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042056732] [2022-11-03 01:42:27,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:42:27,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:42:27,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:42:27,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:42:27,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:42:27,664 INFO L87 Difference]: Start difference. First operand 11193 states and 16548 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 01:42:29,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:31,735 WARN L539 Checker$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 01:42:34,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:37,818 WARN L539 Checker$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 01:42:42,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:43,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:44,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:47,437 WARN L539 Checker$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 01:42:47,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:42:47,968 INFO L93 Difference]: Finished difference Result 25537 states and 37715 transitions. [2022-11-03 01:42:47,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:42:47,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 142 [2022-11-03 01:42:47,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:42:48,078 INFO L225 Difference]: With dead ends: 25537 [2022-11-03 01:42:48,079 INFO L226 Difference]: Without dead ends: 14759 [2022-11-03 01:42:48,156 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 01:42:48,157 INFO L413 NwaCegarLoop]: 2649 mSDtfsCounter, 1730 mSDsluCounter, 8058 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1731 SdHoareTripleChecker+Valid, 10146 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2022-11-03 01:42:48,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1731 Valid, 10146 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 774 Invalid, 3 Unknown, 0 Unchecked, 19.6s Time] [2022-11-03 01:42:48,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14759 states. [2022-11-03 01:42:49,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14759 to 14720. [2022-11-03 01:42:49,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14720 states, 8754 states have (on average 1.3149417409184372) internal successors, (11511), 9368 states have internal predecessors, (11511), 4941 states have call successors, (4941), 1022 states have call predecessors, (4941), 1024 states have return successors, (5288), 4754 states have call predecessors, (5288), 4940 states have call successors, (5288) [2022-11-03 01:42:49,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14720 states to 14720 states and 21740 transitions. [2022-11-03 01:42:49,317 INFO L78 Accepts]: Start accepts. Automaton has 14720 states and 21740 transitions. Word has length 142 [2022-11-03 01:42:49,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:42:49,319 INFO L495 AbstractCegarLoop]: Abstraction has 14720 states and 21740 transitions. [2022-11-03 01:42:49,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 01:42:49,319 INFO L276 IsEmpty]: Start isEmpty. Operand 14720 states and 21740 transitions. [2022-11-03 01:42:49,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-03 01:42:49,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:42:49,323 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:42:49,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:42:49,323 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:42:49,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:42:49,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1031615552, now seen corresponding path program 1 times [2022-11-03 01:42:49,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:42:49,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453464373] [2022-11-03 01:42:49,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:42:49,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:42:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:42:49,719 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-03 01:42:49,720 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:42:49,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453464373] [2022-11-03 01:42:49,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453464373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:42:49,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:42:49,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:42:49,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983531054] [2022-11-03 01:42:49,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:42:49,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:42:49,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:42:49,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:42:49,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:42:49,722 INFO L87 Difference]: Start difference. First operand 14720 states and 21740 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 01:42:52,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:55,965 WARN L539 Checker$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 01:42:58,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:00,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:03,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:05,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:06,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:07,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:09,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:43:09,470 INFO L93 Difference]: Finished difference Result 29170 states and 42967 transitions. [2022-11-03 01:43:09,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:43:09,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 141 [2022-11-03 01:43:09,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:43:09,588 INFO L225 Difference]: With dead ends: 29170 [2022-11-03 01:43:09,588 INFO L226 Difference]: Without dead ends: 14863 [2022-11-03 01:43:09,687 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 01:43:09,689 INFO L413 NwaCegarLoop]: 2629 mSDtfsCounter, 1645 mSDsluCounter, 8015 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 10086 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:43:09,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1660 Valid, 10086 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 771 Invalid, 3 Unknown, 0 Unchecked, 19.0s Time] [2022-11-03 01:43:09,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14863 states. [2022-11-03 01:43:10,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14863 to 14824. [2022-11-03 01:43:10,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14824 states, 8810 states have (on average 1.3129398410896709) internal successors, (11567), 9422 states have internal predecessors, (11567), 4943 states have call successors, (4943), 1068 states have call predecessors, (4943), 1070 states have return successors, (5290), 4758 states have call predecessors, (5290), 4942 states have call successors, (5290) [2022-11-03 01:43:10,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14824 states to 14824 states and 21800 transitions. [2022-11-03 01:43:10,792 INFO L78 Accepts]: Start accepts. Automaton has 14824 states and 21800 transitions. Word has length 141 [2022-11-03 01:43:10,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:43:10,792 INFO L495 AbstractCegarLoop]: Abstraction has 14824 states and 21800 transitions. [2022-11-03 01:43:10,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 01:43:10,793 INFO L276 IsEmpty]: Start isEmpty. Operand 14824 states and 21800 transitions. [2022-11-03 01:43:10,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-03 01:43:10,796 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:43:10,797 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:43:10,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 01:43:10,797 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:43:10,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:43:10,798 INFO L85 PathProgramCache]: Analyzing trace with hash 24867262, now seen corresponding path program 1 times [2022-11-03 01:43:10,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:43:10,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063037497] [2022-11-03 01:43:10,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:43:10,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:43:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:43:11,169 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-03 01:43:11,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:43:11,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063037497] [2022-11-03 01:43:11,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063037497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:43:11,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:43:11,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:43:11,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855998190] [2022-11-03 01:43:11,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:43:11,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:43:11,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:43:11,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:43:11,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:43:11,172 INFO L87 Difference]: Start difference. First operand 14824 states and 21800 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 01:43:15,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:16,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:19,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:21,815 WARN L539 Checker$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 01:43:24,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:26,409 WARN L539 Checker$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 01:43:30,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:31,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:33,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:34,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:37,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:43:37,138 INFO L93 Difference]: Finished difference Result 28186 states and 41358 transitions. [2022-11-03 01:43:37,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:43:37,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 140 [2022-11-03 01:43:37,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:43:37,238 INFO L225 Difference]: With dead ends: 28186 [2022-11-03 01:43:37,238 INFO L226 Difference]: Without dead ends: 13773 [2022-11-03 01:43:37,337 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 01:43:37,339 INFO L413 NwaCegarLoop]: 2638 mSDtfsCounter, 1734 mSDsluCounter, 8037 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1734 SdHoareTripleChecker+Valid, 10113 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:43:37,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1734 Valid, 10113 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 773 Invalid, 4 Unknown, 0 Unchecked, 25.2s Time] [2022-11-03 01:43:37,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13773 states. [2022-11-03 01:43:38,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13773 to 13740. [2022-11-03 01:43:38,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13740 states, 8155 states have (on average 1.3096259963212753) internal successors, (10680), 8727 states have internal predecessors, (10680), 4570 states have call successors, (4570), 1010 states have call predecessors, (4570), 1014 states have return successors, (4885), 4391 states have call predecessors, (4885), 4569 states have call successors, (4885) [2022-11-03 01:43:38,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13740 states to 13740 states and 20135 transitions. [2022-11-03 01:43:38,541 INFO L78 Accepts]: Start accepts. Automaton has 13740 states and 20135 transitions. Word has length 140 [2022-11-03 01:43:38,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:43:38,623 INFO L495 AbstractCegarLoop]: Abstraction has 13740 states and 20135 transitions. [2022-11-03 01:43:38,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 01:43:38,623 INFO L276 IsEmpty]: Start isEmpty. Operand 13740 states and 20135 transitions. [2022-11-03 01:43:38,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-03 01:43:38,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:43:38,628 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-11-03 01:43:38,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 01:43:38,629 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:43:38,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:43:38,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1603836718, now seen corresponding path program 1 times [2022-11-03 01:43:38,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:43:38,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537877562] [2022-11-03 01:43:38,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:43:38,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:43:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:43:39,276 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-03 01:43:39,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:43:39,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537877562] [2022-11-03 01:43:39,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537877562] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:43:39,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035090394] [2022-11-03 01:43:39,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:43:39,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:43:39,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:43:39,284 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:43:39,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:43:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:43:40,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 1830 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 01:43:40,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:43:40,563 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-03 01:43:40,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:43:40,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035090394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:43:40,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:43:40,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2022-11-03 01:43:40,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976175287] [2022-11-03 01:43:40,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:43:40,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 01:43:40,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:43:40,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 01:43:40,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-03 01:43:40,569 INFO L87 Difference]: Start difference. First operand 13740 states and 20135 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 01:43:44,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:46,520 WARN L539 Checker$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 01:43:48,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:50,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:52,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:56,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:43:58,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:44:01,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:44:02,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:44:04,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:44:07,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:44:10,264 WARN L539 Checker$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 01:44:11,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:44:13,961 WARN L539 Checker$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 01:44:15,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:44:18,019 WARN L539 Checker$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 01:44:22,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:44:29,521 WARN L539 Checker$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 01:44:33,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:44:33,565 INFO L93 Difference]: Finished difference Result 34963 states and 51346 transitions. [2022-11-03 01:44:33,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 01:44:33,567 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2022-11-03 01:44:33,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:44:33,739 INFO L225 Difference]: With dead ends: 34963 [2022-11-03 01:44:33,739 INFO L226 Difference]: Without dead ends: 23728 [2022-11-03 01:44:33,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-11-03 01:44:33,819 INFO L413 NwaCegarLoop]: 3361 mSDtfsCounter, 2227 mSDsluCounter, 16868 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 6 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2229 SdHoareTripleChecker+Valid, 19013 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1530 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:44:33,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2229 Valid, 19013 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1530 Invalid, 11 Unknown, 0 Unchecked, 51.7s Time] [2022-11-03 01:44:33,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23728 states. [2022-11-03 01:44:34,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23728 to 23645. [2022-11-03 01:44:34,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23645 states, 14044 states have (on average 1.311022500712048) internal successors, (18412), 15051 states have internal predecessors, (18412), 7858 states have call successors, (7858), 1730 states have call predecessors, (7858), 1742 states have return successors, (8417), 7535 states have call predecessors, (8417), 7857 states have call successors, (8417) [2022-11-03 01:44:35,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23645 states to 23645 states and 34687 transitions. [2022-11-03 01:44:35,149 INFO L78 Accepts]: Start accepts. Automaton has 23645 states and 34687 transitions. Word has length 152 [2022-11-03 01:44:35,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:44:35,150 INFO L495 AbstractCegarLoop]: Abstraction has 23645 states and 34687 transitions. [2022-11-03 01:44:35,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 01:44:35,150 INFO L276 IsEmpty]: Start isEmpty. Operand 23645 states and 34687 transitions. [2022-11-03 01:44:35,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-03 01:44:35,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:44:35,156 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-11-03 01:44:35,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:44:35,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:44:35,383 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:44:35,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:44:35,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1916537298, now seen corresponding path program 1 times [2022-11-03 01:44:35,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:44:35,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23295835] [2022-11-03 01:44:35,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:44:35,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:44:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:44:36,114 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-03 01:44:36,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:44:36,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23295835] [2022-11-03 01:44:36,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23295835] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:44:36,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285998098] [2022-11-03 01:44:36,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:44:36,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:44:36,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:44:36,116 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:44:36,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:44:37,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:44:37,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 1832 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 01:44:37,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:44:37,303 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-03 01:44:37,303 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:44:37,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285998098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:44:37,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:44:37,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-11-03 01:44:37,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585891314] [2022-11-03 01:44:37,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:44:37,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 01:44:37,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:44:37,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 01:44:37,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-03 01:44:37,305 INFO L87 Difference]: Start difference. First operand 23645 states and 34687 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 01:44:43,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:44:45,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:44:46,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:44:51,333 WARN L539 Checker$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 01:44:53,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:44:56,174 WARN L539 Checker$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 01:44:58,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:00,256 WARN L539 Checker$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 01:45:02,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:04,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:11,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:12,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:13,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:14,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:16,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:17,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:18,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:20,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:24,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:25,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:27,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:28,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:45:28,563 INFO L93 Difference]: Finished difference Result 54325 states and 79758 transitions. [2022-11-03 01:45:28,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 01:45:28,564 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 153 [2022-11-03 01:45:28,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:45:28,762 INFO L225 Difference]: With dead ends: 54325 [2022-11-03 01:45:28,762 INFO L226 Difference]: Without dead ends: 33185 [2022-11-03 01:45:28,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2022-11-03 01:45:28,906 INFO L413 NwaCegarLoop]: 3302 mSDtfsCounter, 2141 mSDsluCounter, 16612 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 6 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2157 SdHoareTripleChecker+Valid, 18706 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:45:28,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2157 Valid, 18706 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1527 Invalid, 6 Unknown, 0 Unchecked, 49.9s Time] [2022-11-03 01:45:28,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33185 states. [2022-11-03 01:45:30,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33185 to 33076. [2022-11-03 01:45:30,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33076 states, 19693 states have (on average 1.3108211039455644) internal successors, (25814), 21107 states have internal predecessors, (25814), 10952 states have call successors, (10952), 2416 states have call predecessors, (10952), 2430 states have return successors, (11759), 10483 states have call predecessors, (11759), 10951 states have call successors, (11759) [2022-11-03 01:45:31,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33076 states to 33076 states and 48525 transitions. [2022-11-03 01:45:31,045 INFO L78 Accepts]: Start accepts. Automaton has 33076 states and 48525 transitions. Word has length 153 [2022-11-03 01:45:31,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:45:31,046 INFO L495 AbstractCegarLoop]: Abstraction has 33076 states and 48525 transitions. [2022-11-03 01:45:31,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 01:45:31,047 INFO L276 IsEmpty]: Start isEmpty. Operand 33076 states and 48525 transitions. [2022-11-03 01:45:31,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-03 01:45:31,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:45:31,054 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-11-03 01:45:31,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 01:45:31,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:45:31,283 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:45:31,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:45:31,283 INFO L85 PathProgramCache]: Analyzing trace with hash 913495559, now seen corresponding path program 1 times [2022-11-03 01:45:31,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:45:31,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594665931] [2022-11-03 01:45:31,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:45:31,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:45:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:45:32,043 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-03 01:45:32,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:45:32,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594665931] [2022-11-03 01:45:32,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594665931] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:45:32,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560866347] [2022-11-03 01:45:32,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:45:32,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:45:32,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:45:32,045 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:45:32,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 01:45:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:45:33,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 1834 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 01:45:33,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:45:33,143 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-03 01:45:33,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:45:33,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560866347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:45:33,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:45:33,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-11-03 01:45:33,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414656925] [2022-11-03 01:45:33,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:45:33,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 01:45:33,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:45:33,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 01:45:33,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-03 01:45:33,146 INFO L87 Difference]: Start difference. First operand 33076 states and 48525 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 01:45:38,305 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 01:45:42,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:45,304 WARN L539 Checker$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 01:45:50,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:54,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:55,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:56,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:58,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:59,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:03,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:05,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:09,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:10,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:12,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:13,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:14,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:15,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:46:15,988 INFO L93 Difference]: Finished difference Result 73183 states and 107428 transitions. [2022-11-03 01:46:15,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 01:46:15,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 154 [2022-11-03 01:46:15,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:46:16,269 INFO L225 Difference]: With dead ends: 73183 [2022-11-03 01:46:16,269 INFO L226 Difference]: Without dead ends: 42612 [2022-11-03 01:46:16,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2022-11-03 01:46:16,421 INFO L413 NwaCegarLoop]: 3296 mSDtfsCounter, 2137 mSDsluCounter, 16579 mSDsCounter, 0 mSdLazyCounter, 1519 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 18676 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1519 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:46:16,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2155 Valid, 18676 Invalid, 1529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1519 Invalid, 4 Unknown, 0 Unchecked, 41.1s Time] [2022-11-03 01:46:16,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42612 states. [2022-11-03 01:46:19,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42612 to 40158. [2022-11-03 01:46:19,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40158 states, 23937 states have (on average 1.3123616159084264) internal successors, (31414), 25647 states have internal predecessors, (31414), 13296 states have call successors, (13296), 2914 states have call predecessors, (13296), 2924 states have return successors, (14292), 12727 states have call predecessors, (14292), 13295 states have call successors, (14292) [2022-11-03 01:46:19,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40158 states to 40158 states and 59002 transitions. [2022-11-03 01:46:19,470 INFO L78 Accepts]: Start accepts. Automaton has 40158 states and 59002 transitions. Word has length 154 [2022-11-03 01:46:19,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:46:19,471 INFO L495 AbstractCegarLoop]: Abstraction has 40158 states and 59002 transitions. [2022-11-03 01:46:19,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 01:46:19,471 INFO L276 IsEmpty]: Start isEmpty. Operand 40158 states and 59002 transitions. [2022-11-03 01:46:19,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-03 01:46:19,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:46:19,487 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-11-03 01:46:19,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-03 01:46:19,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:46:19,703 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:46:19,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:46:19,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1257321433, now seen corresponding path program 1 times [2022-11-03 01:46:19,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:46:19,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735380727] [2022-11-03 01:46:19,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:19,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:46:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:46:20,516 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-03 01:46:20,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:46:20,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735380727] [2022-11-03 01:46:20,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735380727] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:46:20,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323591020] [2022-11-03 01:46:20,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:20,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:46:20,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:46:20,519 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:46:20,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 01:46:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:46:21,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 1836 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 01:46:21,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:46:21,713 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-03 01:46:21,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:46:21,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323591020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:46:21,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:46:21,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-11-03 01:46:21,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68827009] [2022-11-03 01:46:21,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:46:21,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 01:46:21,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:46:21,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 01:46:21,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-03 01:46:21,715 INFO L87 Difference]: Start difference. First operand 40158 states and 59002 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 01:46:26,381 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 01:46:30,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:32,148 WARN L539 Checker$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 01:46:33,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:35,252 WARN L539 Checker$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 01:46:37,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:40,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:41,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:42,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:45,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:48,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:53,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:54,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:56,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:57,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:58,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:00,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:02,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:06,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:08,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:09,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:10,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:11,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:13,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:47:13,656 INFO L93 Difference]: Finished difference Result 87831 states and 129104 transitions. [2022-11-03 01:47:13,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 01:47:13,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2022-11-03 01:47:13,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:47:13,925 INFO L225 Difference]: With dead ends: 87831 [2022-11-03 01:47:13,926 INFO L226 Difference]: Without dead ends: 50178 [2022-11-03 01:47:14,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2022-11-03 01:47:14,307 INFO L413 NwaCegarLoop]: 3320 mSDtfsCounter, 2224 mSDsluCounter, 16648 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 6 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 18796 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:47:14,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2226 Valid, 18796 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1483 Invalid, 5 Unknown, 0 Unchecked, 50.1s Time] [2022-11-03 01:47:14,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50178 states. [2022-11-03 01:47:16,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50178 to 49995. [2022-11-03 01:47:16,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49995 states, 29773 states have (on average 1.3126322506969401) internal successors, (39081), 31912 states have internal predecessors, (39081), 16577 states have call successors, (16577), 3628 states have call predecessors, (16577), 3644 states have return successors, (17812), 15868 states have call predecessors, (17812), 16576 states have call successors, (17812) [2022-11-03 01:47:16,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49995 states to 49995 states and 73470 transitions. [2022-11-03 01:47:16,723 INFO L78 Accepts]: Start accepts. Automaton has 49995 states and 73470 transitions. Word has length 155 [2022-11-03 01:47:16,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:47:16,724 INFO L495 AbstractCegarLoop]: Abstraction has 49995 states and 73470 transitions. [2022-11-03 01:47:16,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 01:47:16,724 INFO L276 IsEmpty]: Start isEmpty. Operand 49995 states and 73470 transitions. [2022-11-03 01:47:16,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-03 01:47:16,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:47:16,736 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:47:16,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 01:47:16,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:47:16,963 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:47:16,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:47:16,963 INFO L85 PathProgramCache]: Analyzing trace with hash -328457677, now seen corresponding path program 1 times [2022-11-03 01:47:16,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:47:16,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730424443] [2022-11-03 01:47:16,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:16,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:47:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:17,651 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 01:47:17,652 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:47:17,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730424443] [2022-11-03 01:47:17,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730424443] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:47:17,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922616973] [2022-11-03 01:47:17,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:17,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:47:17,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:47:17,654 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:47:17,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ead3607b-bce1-410b-a59a-1b3534647b8e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 01:47:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:18,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 1923 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 01:47:18,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:47:18,855 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-11-03 01:47:18,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:47:19,422 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-11-03 01:47:19,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922616973] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:47:19,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [895137685] [2022-11-03 01:47:19,469 INFO L159 IcfgInterpreter]: Started Sifa with 87 locations of interest [2022-11-03 01:47:19,469 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:47:19,473 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:47:19,479 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:47:19,479 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:47:20,858 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 139 [2022-11-03 01:47:20,943 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 9 treesize of output 11 [2022-11-03 01:47:20,993 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 9 treesize of output 11 [2022-11-03 01:47:21,039 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 9 treesize of output 11 [2022-11-03 01:47:21,094 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 9 treesize of output 11 [2022-11-03 01:47:21,179 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 385 treesize of output 329 [2022-11-03 01:47:21,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:47:22,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:47:22,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:47:22,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:47:22,299 INFO L244 Elim1Store]: Index analysis took 737 ms [2022-11-03 01:48:27,317 WARN L234 SmtUtils]: Spent 1.08m on a formula simplification. DAG size of input: 2260 DAG size of output: 1033 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 01:48:27,323 INFO L356 Elim1Store]: treesize reduction 7536, result has 19.3 percent of original size [2022-11-03 01:48:27,326 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 91 select indices, 91 select index equivalence classes, 3749 disjoint index pairs (out of 4095 index pairs), introduced 91 new quantified variables, introduced 437 case distinctions, treesize of input 495 treesize of output 2113 [2022-11-03 01:48:29,478 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 139 [2022-11-03 01:48:29,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:29,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:29,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:29,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:30,005 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 86 select indices, 86 select index equivalence classes, 4009 disjoint index pairs (out of 3655 index pairs), introduced 86 new quantified variables, introduced 0 case distinctions, treesize of input 446 treesize of output 709 [2022-11-03 01:48:30,950 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 9 treesize of output 11 [2022-11-03 01:48:31,092 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 9 treesize of output 11 [2022-11-03 01:48:31,238 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 9 treesize of output 11 [2022-11-03 01:48:37,574 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 01:48:37,580 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 01:48:37,589 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 01:48:41,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:41,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:41,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:41,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:41,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 90 select indices, 90 select index equivalence classes, 4009 disjoint index pairs (out of 4005 index pairs), introduced 90 new quantified variables, introduced 0 case distinctions, treesize of input 451 treesize of output 271 [2022-11-03 01:48:41,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:41,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:41,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:41,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:41,921 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 91 select indices, 91 select index equivalence classes, 4095 disjoint index pairs (out of 4095 index pairs), introduced 91 new quantified variables, introduced 0 case distinctions, treesize of input 456 treesize of output 274 [2022-11-03 01:48:42,517 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 571 treesize of output 437 [2022-11-03 01:48:42,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,681 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 136 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 52 [2022-11-03 01:48:42,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-03 01:48:42,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,970 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 49 [2022-11-03 01:48:43,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,152 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 43 [2022-11-03 01:48:52,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:52,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:52,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:52,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:52,470 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 91 select indices, 91 select index equivalence classes, 4095 disjoint index pairs (out of 4095 index pairs), introduced 91 new quantified variables, introduced 0 case distinctions, treesize of input 456 treesize of output 274 [2022-11-03 01:48:53,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:53,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:53,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:53,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:53,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 90 select indices, 90 select index equivalence classes, 4009 disjoint index pairs (out of 4005 index pairs), introduced 90 new quantified variables, introduced 0 case distinctions, treesize of input 451 treesize of output 271 [2022-11-03 01:48:53,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 571 treesize of output 437 [2022-11-03 01:48:54,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,073 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 136 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 52 [2022-11-03 01:48:54,238 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-03 01:48:54,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,419 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 49 [2022-11-03 01:48:54,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:54,583 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 43 [2022-11-03 01:49:42,660 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 01:49:42,855 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 01:49:43,385 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 01:49:44,284 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:49:44,299 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:49:44,339 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:50:15,661 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 01:50:15,982 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 01:50:16,594 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 01:50:17,448 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:50:17,473 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:50:17,519 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:50:24,812 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 01:50:24,978 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 01:50:25,402 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 01:50:28,687 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 01:50:28,849 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 01:50:29,408 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 01:50:36,232 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 01:50:36,442 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 01:50:36,575 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 01:50:40,010 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 01:50:40,271 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 01:50:40,609 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 01:50:48,145 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 01:50:48,441 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 01:50:48,695 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 01:50:52,616 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 01:50:53,019 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 01:50:53,374 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 01:51:51,965 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_memset with input of size 828 for LOIs [2022-11-03 01:51:56,620 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_init_zalloc with input of size 129 for LOIs [2022-11-03 01:51:56,664 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 01:51:56,683 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 01:51:57,185 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 148 for LOIs [2022-11-03 01:51:57,198 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 150 for LOIs [2022-11-03 01:51:57,241 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 828 for LOIs [2022-11-03 01:51:58,772 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:53:44,509 WARN L234 SmtUtils]: Spent 1.75m on a formula simplification. DAG size of input: 1859 DAG size of output: 1179 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)