./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba --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 d62cca735e5e5c3ed49d61d09e2b8d7696fac03708570c9e23afbb5bfdcaa275 --- 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-b5237d8 [2022-11-22 01:52:38,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:52:38,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:52:38,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:52:38,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:52:38,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:52:38,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:52:38,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:52:38,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:52:38,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:52:38,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:52:38,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:52:38,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:52:38,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:52:38,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:52:38,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:52:38,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:52:38,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:52:38,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:52:38,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:52:38,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:52:38,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:52:38,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:52:38,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:52:38,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:52:38,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:52:38,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:52:38,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:52:38,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:52:38,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:52:38,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:52:38,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:52:38,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:52:38,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:52:38,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:52:38,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:52:38,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:52:38,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:52:38,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:52:38,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:52:38,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:52:38,968 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:52:39,006 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:52:39,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:52:39,007 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:52:39,007 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:52:39,008 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:52:39,008 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:52:39,008 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:52:39,008 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:52:39,008 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:52:39,009 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:52:39,010 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:52:39,010 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:52:39,010 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:52:39,010 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:52:39,010 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:52:39,011 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:52:39,011 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:52:39,011 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:52:39,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:52:39,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:52:39,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:52:39,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:52:39,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:52:39,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:52:39,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:52:39,013 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:52:39,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:52:39,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:52:39,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:52:39,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:52:39,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:52:39,014 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:52:39,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:52:39,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:52:39,015 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:52:39,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:52:39,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:52:39,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:52:39,015 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_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d62cca735e5e5c3ed49d61d09e2b8d7696fac03708570c9e23afbb5bfdcaa275 [2022-11-22 01:52:39,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:52:39,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:52:39,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:52:39,357 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:52:39,358 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:52:39,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-11-22 01:52:42,362 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:52:43,044 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:52:43,044 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-11-22 01:52:43,097 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/data/220cff712/b4fbc79f8e8448afbe0745bcb580c49d/FLAG8bfd30780 [2022-11-22 01:52:43,111 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/data/220cff712/b4fbc79f8e8448afbe0745bcb580c49d [2022-11-22 01:52:43,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:52:43,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:52:43,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:52:43,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:52:43,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:52:43,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:52:43" (1/1) ... [2022-11-22 01:52:43,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e5461da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:43, skipping insertion in model container [2022-11-22 01:52:43,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:52:43" (1/1) ... [2022-11-22 01:52:43,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:52:43,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:52:46,205 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[361017,361030] [2022-11-22 01:52:46,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:52:46,428 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:52:46,973 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[361017,361030] [2022-11-22 01:52:46,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:52:47,239 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:52:47,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:47 WrapperNode [2022-11-22 01:52:47,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:52:47,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:52:47,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:52:47,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:52:47,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:47" (1/1) ... [2022-11-22 01:52:47,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:47" (1/1) ... [2022-11-22 01:52:48,089 INFO L138 Inliner]: procedures = 359, calls = 7223, calls flagged for inlining = 183, calls inlined = 137, statements flattened = 13695 [2022-11-22 01:52:48,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:52:48,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:52:48,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:52:48,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:52:48,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:47" (1/1) ... [2022-11-22 01:52:48,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:47" (1/1) ... [2022-11-22 01:52:48,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:47" (1/1) ... [2022-11-22 01:52:48,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:47" (1/1) ... [2022-11-22 01:52:48,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:47" (1/1) ... [2022-11-22 01:52:48,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:47" (1/1) ... [2022-11-22 01:52:48,536 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:47" (1/1) ... [2022-11-22 01:52:48,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:47" (1/1) ... [2022-11-22 01:52:48,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:52:48,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:52:48,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:52:48,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:52:48,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:47" (1/1) ... [2022-11-22 01:52:48,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:52:48,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:52:48,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:52:48,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:52:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-22 01:52:48,890 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-22 01:52:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-22 01:52:48,891 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-22 01:52:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-22 01:52:48,892 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-22 01:52:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:52:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:52:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-22 01:52:48,892 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-22 01:52:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_recv_bulk_msg [2022-11-22 01:52:48,893 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_recv_bulk_msg [2022-11-22 01:52:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:52:48,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:52:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_save_screen [2022-11-22 01:52:48,893 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_save_screen [2022-11-22 01:52:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_free_buffers [2022-11-22 01:52:48,894 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_free_buffers [2022-11-22 01:52:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_disconnect [2022-11-22 01:52:48,894 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_disconnect [2022-11-22 01:52:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_deinit [2022-11-22 01:52:48,894 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_deinit [2022-11-22 01:52:48,895 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_memio_byte [2022-11-22 01:52:48,895 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_memio_byte [2022-11-22 01:52:48,895 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-22 01:52:48,896 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-22 01:52:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-22 01:52:48,899 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-22 01:52:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-22 01:52:48,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-22 01:52:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_set_cursor [2022-11-22 01:52:48,901 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_set_cursor [2022-11-22 01:52:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2022-11-22 01:52:48,901 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2022-11-22 01:52:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-22 01:52:48,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-22 01:52:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_memio_word [2022-11-22 01:52:48,902 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_memio_word [2022-11-22 01:52:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:52:48,902 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:52:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetReg [2022-11-22 01:52:48,903 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetReg [2022-11-22 01:52:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-22 01:52:48,918 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-22 01:52:48,918 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_get_sisusb_lock_and_check [2022-11-22 01:52:48,918 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_get_sisusb_lock_and_check [2022-11-22 01:52:48,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:52:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure take_over_console [2022-11-22 01:52:48,919 INFO L138 BoogieDeclarations]: Found implementation of procedure take_over_console [2022-11-22 01:52:48,920 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_sisusb_valid [2022-11-22 01:52:48,920 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_sisusb_valid [2022-11-22 01:52:48,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:52:48,920 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegOR [2022-11-22 01:52:48,920 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegOR [2022-11-22 01:52:48,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_sisusb_usb_data [2022-11-22 01:52:48,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_sisusb_usb_data [2022-11-22 01:52:48,921 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-22 01:52:48,921 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_check_rbc [2022-11-22 01:52:48,921 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_check_rbc [2022-11-22 01:52:48,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:52:48,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:52:48,922 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-22 01:52:48,922 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-22 01:52:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_outurb_available [2022-11-22 01:52:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_outurb_available [2022-11-22 01:52:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_kill_all_busy [2022-11-22 01:52:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_kill_all_busy [2022-11-22 01:52:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 01:52:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 01:52:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-22 01:52:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-22 01:52:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_getidxreg [2022-11-22 01:52:48,924 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_getidxreg [2022-11-22 01:52:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-11-22 01:52:48,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-11-22 01:52:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-22 01:52:48,924 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-22 01:52:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_writeb [2022-11-22 01:52:48,924 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_writeb [2022-11-22 01:52:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:52:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-22 01:52:48,925 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-22 01:52:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_set_default_mode [2022-11-22 01:52:48,925 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_set_default_mode [2022-11-22 01:52:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_memio_byte [2022-11-22 01:52:48,925 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_memio_byte [2022-11-22 01:52:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:52:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_DisplayOn [2022-11-22 01:52:48,925 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_DisplayOn [2022-11-22 01:52:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxregandor [2022-11-22 01:52:48,925 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxregandor [2022-11-22 01:52:48,926 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_mem_bulk [2022-11-22 01:52:48,926 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_mem_bulk [2022-11-22 01:52:48,926 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-22 01:52:48,926 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-22 01:52:48,926 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbdummycon_init [2022-11-22 01:52:48,926 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbdummycon_init [2022-11-22 01:52:48,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2022-11-22 01:52:48,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2022-11-22 01:52:48,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:52:48,927 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_GetReg [2022-11-22 01:52:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_GetReg [2022-11-22 01:52:48,927 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_do_font_op [2022-11-22 01:52:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_do_font_op [2022-11-22 01:52:48,927 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_init_gfxdevice [2022-11-22 01:52:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_init_gfxdevice [2022-11-22 01:52:48,927 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegByte [2022-11-22 01:52:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegByte [2022-11-22 01:52:48,928 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_free_urbs [2022-11-22 01:52:48,928 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_free_urbs [2022-11-22 01:52:48,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:52:48,928 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:52:48,928 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_send_bridge_packet [2022-11-22 01:52:48,928 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_send_bridge_packet [2022-11-22 01:52:48,928 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-22 01:52:48,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-22 01:52:48,929 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-22 01:52:48,929 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-22 01:52:48,929 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_ioctl [2022-11-22 01:52:48,929 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_ioctl [2022-11-22 01:52:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_memio_word [2022-11-22 01:52:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_memio_word [2022-11-22 01:52:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_get_sisusb [2022-11-22 01:52:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_get_sisusb [2022-11-22 01:52:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:52:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:52:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_cursor [2022-11-22 01:52:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_cursor [2022-11-22 01:52:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_is_inactive [2022-11-22 01:52:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_is_inactive [2022-11-22 01:52:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-22 01:52:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-22 01:52:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_clear_vram [2022-11-22 01:52:48,932 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_clear_vram [2022-11-22 01:52:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_pci_config [2022-11-22 01:52:48,932 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_pci_config [2022-11-22 01:52:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:52:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-22 01:52:48,933 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-22 01:52:48,933 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_send_bulk_msg [2022-11-22 01:52:48,933 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_send_bulk_msg [2022-11-22 01:52:48,933 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-22 01:52:48,933 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-22 01:52:48,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:52:48,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:52:48,934 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_readb [2022-11-22 01:52:48,934 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_readb [2022-11-22 01:52:48,934 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxregor [2022-11-22 01:52:48,934 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxregor [2022-11-22 01:52:48,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:52:48,935 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-11-22 01:52:48,935 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-11-22 01:52:48,935 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-22 01:52:48,935 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-22 01:52:48,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:52:48,936 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_send_packet [2022-11-22 01:52:48,936 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_send_packet [2022-11-22 01:52:48,937 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_memio_long [2022-11-22 01:52:48,937 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_memio_long [2022-11-22 01:52:48,937 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_reset_text_mode [2022-11-22 01:52:48,937 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_reset_text_mode [2022-11-22 01:52:48,937 INFO L130 BoogieDeclarations]: Found specification of procedure SiSUSB_InitPtr [2022-11-22 01:52:48,949 INFO L138 BoogieDeclarations]: Found implementation of procedure SiSUSB_InitPtr [2022-11-22 01:52:48,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:52:48,950 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_pci_config [2022-11-22 01:52:48,950 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_pci_config [2022-11-22 01:52:48,950 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 01:52:48,950 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxreg [2022-11-22 01:52:48,950 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxreg [2022-11-22 01:52:48,951 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegANDOR [2022-11-22 01:52:48,951 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegANDOR [2022-11-22 01:52:48,951 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:52:48,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:52:48,951 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_wait_all_out_complete [2022-11-22 01:52:48,951 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_wait_all_out_complete [2022-11-22 01:52:48,952 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-22 01:52:48,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-22 01:52:48,952 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegAND [2022-11-22 01:52:48,952 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegAND [2022-11-22 01:52:48,952 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxregand [2022-11-22 01:52:48,952 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxregand [2022-11-22 01:52:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-22 01:52:48,953 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-22 01:52:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetSegmentReg [2022-11-22 01:52:48,953 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetSegmentReg [2022-11-22 01:52:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_copy_memory [2022-11-22 01:52:48,953 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_copy_memory [2022-11-22 01:52:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setreg [2022-11-22 01:52:48,954 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setreg [2022-11-22 01:52:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_sisusb_usb_data [2022-11-22 01:52:48,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_sisusb_usb_data [2022-11-22 01:52:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_set_start_address [2022-11-22 01:52:48,954 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_set_start_address [2022-11-22 01:52:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-22 01:52:48,955 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-22 01:52:48,955 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:52:48,955 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:52:48,955 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_WriteDAC [2022-11-22 01:52:48,955 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_WriteDAC [2022-11-22 01:52:48,955 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_mem_bulk [2022-11-22 01:52:48,956 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_mem_bulk [2022-11-22 01:52:48,956 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_getreg [2022-11-22 01:52:48,956 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_getreg [2022-11-22 01:52:48,956 INFO L130 BoogieDeclarations]: Found specification of procedure SiSUSBSetMode [2022-11-22 01:52:48,956 INFO L138 BoogieDeclarations]: Found implementation of procedure SiSUSBSetMode [2022-11-22 01:52:48,956 INFO L130 BoogieDeclarations]: Found specification of procedure vc_resize [2022-11-22 01:52:48,957 INFO L138 BoogieDeclarations]: Found implementation of procedure vc_resize [2022-11-22 01:52:48,957 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_init [2022-11-22 01:52:48,957 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_init [2022-11-22 01:52:48,957 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-22 01:52:48,957 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-22 01:52:48,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:52:48,958 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_memio_long [2022-11-22 01:52:48,958 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_memio_long [2022-11-22 01:52:48,958 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_GetRegByte [2022-11-22 01:52:48,958 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_GetRegByte [2022-11-22 01:52:48,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:52:48,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:52:48,959 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_triggersr16 [2022-11-22 01:52:48,959 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_triggersr16 [2022-11-22 01:52:48,959 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-22 01:52:48,959 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-22 01:52:48,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:52:48,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:52:48,960 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_all_free [2022-11-22 01:52:48,960 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_all_free [2022-11-22 01:52:50,248 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:52:50,251 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:53:25,660 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:53:31,428 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:53:31,429 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:53:31,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:53:31 BoogieIcfgContainer [2022-11-22 01:53:31,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:53:31,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:53:31,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:53:31,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:53:31,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:52:43" (1/3) ... [2022-11-22 01:53:31,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f517e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:53:31, skipping insertion in model container [2022-11-22 01:53:31,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:52:47" (2/3) ... [2022-11-22 01:53:31,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f517e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:53:31, skipping insertion in model container [2022-11-22 01:53:31,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:53:31" (3/3) ... [2022-11-22 01:53:31,452 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-11-22 01:53:31,473 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:53:31,473 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:53:31,588 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:53:31,594 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;@6b4fb74b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:53:31,594 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:53:31,609 INFO L276 IsEmpty]: Start isEmpty. Operand has 2233 states, 1362 states have (on average 1.3193832599118942) internal successors, (1797), 1389 states have internal predecessors, (1797), 765 states have call successors, (765), 104 states have call predecessors, (765), 104 states have return successors, (765), 761 states have call predecessors, (765), 765 states have call successors, (765) [2022-11-22 01:53:31,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 01:53:31,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:31,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:31,623 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:53:31,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:31,628 INFO L85 PathProgramCache]: Analyzing trace with hash 515982655, now seen corresponding path program 1 times [2022-11-22 01:53:31,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:31,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094478964] [2022-11-22 01:53:31,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:31,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:32,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:33,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:33,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:33,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094478964] [2022-11-22 01:53:33,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094478964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:33,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:53:33,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:53:33,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694890034] [2022-11-22 01:53:33,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:33,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:53:33,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:33,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:53:33,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:33,276 INFO L87 Difference]: Start difference. First operand has 2233 states, 1362 states have (on average 1.3193832599118942) internal successors, (1797), 1389 states have internal predecessors, (1797), 765 states have call successors, (765), 104 states have call predecessors, (765), 104 states have return successors, (765), 761 states have call predecessors, (765), 765 states have call successors, (765) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:53:40,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:40,085 INFO L93 Difference]: Finished difference Result 4459 states and 6713 transitions. [2022-11-22 01:53:40,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:53:40,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2022-11-22 01:53:40,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:40,145 INFO L225 Difference]: With dead ends: 4459 [2022-11-22 01:53:40,145 INFO L226 Difference]: Without dead ends: 2229 [2022-11-22 01:53:40,171 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 [2022-11-22 01:53:40,175 INFO L413 NwaCegarLoop]: 2823 mSDtfsCounter, 0 mSDsluCounter, 2822 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5645 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:40,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5645 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-22 01:53:40,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2229 states. [2022-11-22 01:53:40,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2229 to 2229. [2022-11-22 01:53:40,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2229 states, 1361 states have (on average 1.3181484202792064) internal successors, (1794), 1386 states have internal predecessors, (1794), 765 states have call successors, (765), 104 states have call predecessors, (765), 102 states have return successors, (759), 755 states have call predecessors, (759), 759 states have call successors, (759) [2022-11-22 01:53:40,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 3318 transitions. [2022-11-22 01:53:40,435 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 3318 transitions. Word has length 14 [2022-11-22 01:53:40,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:40,437 INFO L495 AbstractCegarLoop]: Abstraction has 2229 states and 3318 transitions. [2022-11-22 01:53:40,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:53:40,438 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 3318 transitions. [2022-11-22 01:53:40,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 01:53:40,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:40,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:40,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:53:40,440 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:53:40,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:40,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1392726847, now seen corresponding path program 1 times [2022-11-22 01:53:40,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:40,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186295046] [2022-11-22 01:53:40,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:40,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:41,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:41,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:41,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186295046] [2022-11-22 01:53:41,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186295046] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:53:41,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014059299] [2022-11-22 01:53:41,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:41,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:53:41,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:53:41,918 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:53:41,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:53:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:44,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 8415 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:53:44,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:53:44,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:53:44,559 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:53:44,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014059299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:44,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:53:44,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-22 01:53:44,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918753253] [2022-11-22 01:53:44,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:44,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:53:44,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:44,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:53:44,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:53:44,563 INFO L87 Difference]: Start difference. First operand 2229 states and 3318 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:53:48,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:48,799 INFO L93 Difference]: Finished difference Result 2231 states and 3319 transitions. [2022-11-22 01:53:48,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:53:48,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2022-11-22 01:53:48,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:48,823 INFO L225 Difference]: With dead ends: 2231 [2022-11-22 01:53:48,823 INFO L226 Difference]: Without dead ends: 2228 [2022-11-22 01:53:48,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:53:48,828 INFO L413 NwaCegarLoop]: 2817 mSDtfsCounter, 3303 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3303 SdHoareTripleChecker+Valid, 2818 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:48,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3303 Valid, 2818 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-22 01:53:48,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2022-11-22 01:53:48,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2228. [2022-11-22 01:53:48,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 1361 states have (on average 1.3174136664217486) internal successors, (1793), 1385 states have internal predecessors, (1793), 764 states have call successors, (764), 104 states have call predecessors, (764), 102 states have return successors, (759), 755 states have call predecessors, (759), 759 states have call successors, (759) [2022-11-22 01:53:48,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 3316 transitions. [2022-11-22 01:53:48,985 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 3316 transitions. Word has length 15 [2022-11-22 01:53:48,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:48,985 INFO L495 AbstractCegarLoop]: Abstraction has 2228 states and 3316 transitions. [2022-11-22 01:53:48,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:53:48,986 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 3316 transitions. [2022-11-22 01:53:48,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 01:53:48,987 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:48,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:49,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:53:49,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:53:49,202 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:53:49,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:49,203 INFO L85 PathProgramCache]: Analyzing trace with hash 222408129, now seen corresponding path program 1 times [2022-11-22 01:53:49,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:49,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565674101] [2022-11-22 01:53:49,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:49,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:50,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:50,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:50,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565674101] [2022-11-22 01:53:50,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565674101] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:53:50,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620065027] [2022-11-22 01:53:50,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:50,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:53:50,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:53:50,403 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:53:50,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:53:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:52,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 8417 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:53:52,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:53:52,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:53:52,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:53:52,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620065027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:52,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:53:52,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-22 01:53:52,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476081784] [2022-11-22 01:53:52,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:52,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:53:52,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:52,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:53:52,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:53:52,628 INFO L87 Difference]: Start difference. First operand 2228 states and 3316 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:53:55,563 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 [] [2022-11-22 01:54:00,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:54:00,380 INFO L93 Difference]: Finished difference Result 5921 states and 8823 transitions. [2022-11-22 01:54:00,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:54:00,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2022-11-22 01:54:00,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:54:00,410 INFO L225 Difference]: With dead ends: 5921 [2022-11-22 01:54:00,411 INFO L226 Difference]: Without dead ends: 3702 [2022-11-22 01:54:00,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:54:00,431 INFO L413 NwaCegarLoop]: 4342 mSDtfsCounter, 2369 mSDsluCounter, 2609 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2369 SdHoareTripleChecker+Valid, 6951 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:54:00,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2369 Valid, 6951 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-11-22 01:54:00,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3702 states. [2022-11-22 01:54:00,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3702 to 3699. [2022-11-22 01:54:00,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3699 states, 2263 states have (on average 1.309765797613787) internal successors, (2964), 2314 states have internal predecessors, (2964), 1254 states have call successors, (1254), 180 states have call predecessors, (1254), 181 states have return successors, (1261), 1230 states have call predecessors, (1261), 1236 states have call successors, (1261) [2022-11-22 01:54:00,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3699 states to 3699 states and 5479 transitions. [2022-11-22 01:54:00,692 INFO L78 Accepts]: Start accepts. Automaton has 3699 states and 5479 transitions. Word has length 16 [2022-11-22 01:54:00,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:54:00,693 INFO L495 AbstractCegarLoop]: Abstraction has 3699 states and 5479 transitions. [2022-11-22 01:54:00,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:54:00,694 INFO L276 IsEmpty]: Start isEmpty. Operand 3699 states and 5479 transitions. [2022-11-22 01:54:00,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 01:54:00,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:54:00,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:54:00,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:54:00,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:54:00,916 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:54:00,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:54:00,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1697728894, now seen corresponding path program 1 times [2022-11-22 01:54:00,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:54:00,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429157038] [2022-11-22 01:54:00,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:00,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:54:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:01,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:54:01,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:54:01,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429157038] [2022-11-22 01:54:01,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429157038] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:54:01,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726550916] [2022-11-22 01:54:01,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:01,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:54:01,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:54:01,918 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:54:01,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:54:04,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:04,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 8419 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:54:04,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:54:04,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:54:04,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:54:04,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726550916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:54:04,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:54:04,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-22 01:54:04,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742152286] [2022-11-22 01:54:04,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:54:04,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:54:04,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:54:04,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:54:04,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:54:04,137 INFO L87 Difference]: Start difference. First operand 3699 states and 5479 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:54:06,168 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 [] [2022-11-22 01:54:07,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:54:07,906 INFO L93 Difference]: Finished difference Result 3701 states and 5480 transitions. [2022-11-22 01:54:07,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:54:07,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-11-22 01:54:07,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:54:07,933 INFO L225 Difference]: With dead ends: 3701 [2022-11-22 01:54:07,933 INFO L226 Difference]: Without dead ends: 3692 [2022-11-22 01:54:07,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:54:07,939 INFO L413 NwaCegarLoop]: 2816 mSDtfsCounter, 3299 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3299 SdHoareTripleChecker+Valid, 2817 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:54:07,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3299 Valid, 2817 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-22 01:54:07,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3692 states. [2022-11-22 01:54:08,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3692 to 3692. [2022-11-22 01:54:08,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3692 states, 2259 states have (on average 1.3072155821159805) internal successors, (2953), 2309 states have internal predecessors, (2953), 1251 states have call successors, (1251), 179 states have call predecessors, (1251), 181 states have return successors, (1260), 1229 states have call predecessors, (1260), 1235 states have call successors, (1260) [2022-11-22 01:54:08,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3692 states to 3692 states and 5464 transitions. [2022-11-22 01:54:08,203 INFO L78 Accepts]: Start accepts. Automaton has 3692 states and 5464 transitions. Word has length 17 [2022-11-22 01:54:08,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:54:08,203 INFO L495 AbstractCegarLoop]: Abstraction has 3692 states and 5464 transitions. [2022-11-22 01:54:08,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:54:08,205 INFO L276 IsEmpty]: Start isEmpty. Operand 3692 states and 5464 transitions. [2022-11-22 01:54:08,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-22 01:54:08,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:54:08,207 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:54:08,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:54:08,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:54:08,411 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:54:08,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:54:08,412 INFO L85 PathProgramCache]: Analyzing trace with hash 2138466533, now seen corresponding path program 1 times [2022-11-22 01:54:08,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:54:08,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462918349] [2022-11-22 01:54:08,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:08,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:54:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:09,476 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:54:09,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:54:09,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462918349] [2022-11-22 01:54:09,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462918349] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:54:09,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53493255] [2022-11-22 01:54:09,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:09,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:54:09,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:54:09,479 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:54:09,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:54:11,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:11,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 8597 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:54:11,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:54:11,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:54:11,754 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:54:11,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53493255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:54:11,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:54:11,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-22 01:54:11,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860411450] [2022-11-22 01:54:11,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:54:11,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:54:11,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:54:11,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:54:11,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:54:11,756 INFO L87 Difference]: Start difference. First operand 3692 states and 5464 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 01:54:13,680 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 [] [2022-11-22 01:54:18,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:54:18,171 INFO L93 Difference]: Finished difference Result 7587 states and 11275 transitions. [2022-11-22 01:54:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:54:18,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2022-11-22 01:54:18,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:54:18,196 INFO L225 Difference]: With dead ends: 7587 [2022-11-22 01:54:18,196 INFO L226 Difference]: Without dead ends: 3904 [2022-11-22 01:54:18,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:54:18,222 INFO L413 NwaCegarLoop]: 2848 mSDtfsCounter, 137 mSDsluCounter, 2753 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 5601 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:54:18,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 5601 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-22 01:54:18,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3904 states. [2022-11-22 01:54:18,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3904 to 3880. [2022-11-22 01:54:18,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3880 states, 2385 states have (on average 1.3157232704402515) internal successors, (3138), 2442 states have internal predecessors, (3138), 1313 states have call successors, (1313), 179 states have call predecessors, (1313), 181 states have return successors, (1327), 1290 states have call predecessors, (1327), 1297 states have call successors, (1327) [2022-11-22 01:54:18,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3880 states to 3880 states and 5778 transitions. [2022-11-22 01:54:18,496 INFO L78 Accepts]: Start accepts. Automaton has 3880 states and 5778 transitions. Word has length 36 [2022-11-22 01:54:18,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:54:18,496 INFO L495 AbstractCegarLoop]: Abstraction has 3880 states and 5778 transitions. [2022-11-22 01:54:18,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 01:54:18,497 INFO L276 IsEmpty]: Start isEmpty. Operand 3880 states and 5778 transitions. [2022-11-22 01:54:18,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-22 01:54:18,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:54:18,503 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:54:18,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:54:18,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:54:18,717 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:54:18,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:54:18,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1999859984, now seen corresponding path program 1 times [2022-11-22 01:54:18,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:54:18,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948396966] [2022-11-22 01:54:18,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:18,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:54:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:19,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:54:19,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:54:19,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948396966] [2022-11-22 01:54:19,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948396966] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:54:19,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272233255] [2022-11-22 01:54:19,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:19,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:54:19,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:54:19,741 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:54:19,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2753d3c-efd5-4b54-93ab-649c9a0fd3fa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:54:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:21,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 8571 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:54:21,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:54:21,912 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:54:21,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:54:21,987 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:54:21,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272233255] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:54:21,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1347683894] [2022-11-22 01:54:22,019 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2022-11-22 01:54:22,019 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:54:22,024 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:54:22,030 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:54:22,032 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:55:52,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 551 treesize of output 443 [2022-11-22 01:56:17,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 551 treesize of output 443 [2022-11-22 02:01:36,480 WARN L233 SmtUtils]: Spent 15.01s on a formula simplification that was a NOOP. DAG size: 13783 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-22 02:01:51,304 WARN L233 SmtUtils]: Spent 14.76s on a formula simplification that was a NOOP. DAG size: 13783 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-22 02:02:08,162 WARN L233 SmtUtils]: Spent 16.70s on a formula simplification. DAG size of input: 13902 DAG size of output: 13783 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-22 02:02:23,711 WARN L233 SmtUtils]: Spent 15.34s on a formula simplification that was a NOOP. DAG size: 13783 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-22 02:02:39,379 WARN L233 SmtUtils]: Spent 15.61s on a formula simplification that was a NOOP. DAG size: 13783 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-22 02:02:55,283 WARN L233 SmtUtils]: Spent 15.83s on a formula simplification. DAG size of input: 13902 DAG size of output: 13783 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-22 02:03:09,383 WARN L233 SmtUtils]: Spent 13.98s on a formula simplification that was a NOOP. DAG size: 13783 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-22 02:03:23,251 WARN L233 SmtUtils]: Spent 13.79s on a formula simplification that was a NOOP. DAG size: 13783 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-22 02:03:37,920 WARN L233 SmtUtils]: Spent 14.62s on a formula simplification. DAG size of input: 13902 DAG size of output: 13783 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-22 02:03:51,801 WARN L233 SmtUtils]: Spent 13.77s on a formula simplification that was a NOOP. DAG size: 13783 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-22 02:04:05,640 WARN L233 SmtUtils]: Spent 13.80s on a formula simplification that was a NOOP. DAG size: 13783 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-22 02:04:20,310 WARN L233 SmtUtils]: Spent 14.62s on a formula simplification. DAG size of input: 13902 DAG size of output: 13783 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)