./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7 --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 f37e3824e515882c7bcf8c367d3f56b0297fad2493f001664c6f9188e65f0eab --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:49:01,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:49:01,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:49:01,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:49:01,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:49:01,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:49:01,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:49:01,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:49:01,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:49:01,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:49:01,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:49:01,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:49:01,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:49:01,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:49:01,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:49:01,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:49:01,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:49:01,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:49:01,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:49:01,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:49:01,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:49:01,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:49:01,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:49:01,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:49:01,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:49:01,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:49:01,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:49:01,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:49:01,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:49:01,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:49:01,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:49:01,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:49:01,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:49:01,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:49:01,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:49:01,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:49:01,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:49:01,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:49:01,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:49:01,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:49:01,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:49:01,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 17:49:01,837 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:49:01,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:49:01,838 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:49:01,838 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:49:01,839 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:49:01,839 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:49:01,839 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:49:01,839 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:49:01,840 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:49:01,840 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 17:49:01,841 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:49:01,841 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:49:01,842 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 17:49:01,842 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 17:49:01,842 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:49:01,842 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 17:49:01,843 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 17:49:01,843 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 17:49:01,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:49:01,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:49:01,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:49:01,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 17:49:01,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:49:01,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 17:49:01,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 17:49:01,845 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:49:01,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 17:49:01,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:49:01,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:49:01,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:49:01,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:49:01,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:49:01,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 17:49:01,847 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 17:49:01,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 17:49:01,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 17:49:01,848 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:49:01,848 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:49:01,848 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f37e3824e515882c7bcf8c367d3f56b0297fad2493f001664c6f9188e65f0eab [2021-11-25 17:49:02,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:49:02,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:49:02,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:49:02,128 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:49:02,129 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:49:02,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2021-11-25 17:49:02,200 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/data/88f155cae/c512cf4c329b4bf48694327387bc1671/FLAG116405ea3 [2021-11-25 17:49:03,057 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:49:03,058 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2021-11-25 17:49:03,096 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/data/88f155cae/c512cf4c329b4bf48694327387bc1671/FLAG116405ea3 [2021-11-25 17:49:03,528 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/data/88f155cae/c512cf4c329b4bf48694327387bc1671 [2021-11-25 17:49:03,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:49:03,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:49:03,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:49:03,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:49:03,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:49:03,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:49:03" (1/1) ... [2021-11-25 17:49:03,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6257e914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:03, skipping insertion in model container [2021-11-25 17:49:03,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:49:03" (1/1) ... [2021-11-25 17:49:03,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:49:03,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:49:05,382 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i[213319,213332] [2021-11-25 17:49:05,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:49:05,541 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 17:49:06,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i[213319,213332] [2021-11-25 17:49:06,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:49:06,117 INFO L208 MainTranslator]: Completed translation [2021-11-25 17:49:06,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:06 WrapperNode [2021-11-25 17:49:06,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:49:06,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 17:49:06,119 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 17:49:06,120 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 17:49:06,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:06" (1/1) ... [2021-11-25 17:49:06,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:06" (1/1) ... [2021-11-25 17:49:06,397 INFO L137 Inliner]: procedures = 269, calls = 1577, calls flagged for inlining = 115, calls inlined = 90, statements flattened = 3647 [2021-11-25 17:49:06,398 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 17:49:06,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 17:49:06,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 17:49:06,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 17:49:06,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:06" (1/1) ... [2021-11-25 17:49:06,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:06" (1/1) ... [2021-11-25 17:49:06,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:06" (1/1) ... [2021-11-25 17:49:06,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:06" (1/1) ... [2021-11-25 17:49:06,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:06" (1/1) ... [2021-11-25 17:49:06,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:06" (1/1) ... [2021-11-25 17:49:06,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:06" (1/1) ... [2021-11-25 17:49:06,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 17:49:06,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 17:49:06,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 17:49:06,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 17:49:06,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:06" (1/1) ... [2021-11-25 17:49:06,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:49:06,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:49:06,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 17:49:06,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 17:49:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure free_hba [2021-11-25 17:49:06,780 INFO L138 BoogieDeclarations]: Found implementation of procedure free_hba [2021-11-25 17:49:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_submit_command [2021-11-25 17:49:06,780 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_submit_command [2021-11-25 17:49:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2021-11-25 17:49:06,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2021-11-25 17:49:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 17:49:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 17:49:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure cpqarray_remove_one [2021-11-25 17:49:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure cpqarray_remove_one [2021-11-25 17:49:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_cpqarray_hba [2021-11-25 17:49:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_cpqarray_hba [2021-11-25 17:49:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_intr_mask [2021-11-25 17:49:06,782 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_intr_mask [2021-11-25 17:49:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 17:49:06,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 17:49:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2021-11-25 17:49:06,782 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2021-11-25 17:49:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_completed [2021-11-25 17:49:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_completed [2021-11-25 17:49:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-11-25 17:49:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-11-25 17:49:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_intr_pending [2021-11-25 17:49:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_intr_pending [2021-11-25 17:49:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_intr_mask [2021-11-25 17:49:06,784 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_intr_mask [2021-11-25 17:49:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-25 17:49:06,784 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-25 17:49:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-25 17:49:06,784 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-25 17:49:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2021-11-25 17:49:06,785 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2021-11-25 17:49:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-25 17:49:06,785 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-25 17:49:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-25 17:49:06,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-25 17:49:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-25 17:49:06,786 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-25 17:49:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-11-25 17:49:06,786 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-11-25 17:49:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 17:49:06,786 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 17:49:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure start_io [2021-11-25 17:49:06,787 INFO L138 BoogieDeclarations]: Found implementation of procedure start_io [2021-11-25 17:49:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cpqarray_mutex [2021-11-25 17:49:06,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cpqarray_mutex [2021-11-25 17:49:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 17:49:06,788 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 17:49:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_completed [2021-11-25 17:49:06,789 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_completed [2021-11-25 17:49:06,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cpqarray_mutex [2021-11-25 17:49:06,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cpqarray_mutex [2021-11-25 17:49:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-25 17:49:06,791 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-25 17:49:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-25 17:49:06,791 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-25 17:49:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-25 17:49:06,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-25 17:49:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure cmd_free [2021-11-25 17:49:06,792 INFO L138 BoogieDeclarations]: Found implementation of procedure cmd_free [2021-11-25 17:49:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-25 17:49:06,793 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-25 17:49:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 17:49:06,793 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 17:49:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_completed [2021-11-25 17:49:06,793 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_completed [2021-11-25 17:49:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-25 17:49:06,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-25 17:49:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 17:49:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_fifo_full [2021-11-25 17:49:06,794 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_fifo_full [2021-11-25 17:49:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure release_io_mem [2021-11-25 17:49:06,794 INFO L138 BoogieDeclarations]: Found implementation of procedure release_io_mem [2021-11-25 17:49:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 17:49:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 17:49:06,796 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 17:49:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-11-25 17:49:06,796 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-11-25 17:49:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-25 17:49:06,796 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-25 17:49:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_intr_pending [2021-11-25 17:49:06,796 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_intr_pending [2021-11-25 17:49:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2021-11-25 17:49:06,797 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_logical_block_size [2021-11-25 17:49:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure sendcmd [2021-11-25 17:49:06,798 INFO L138 BoogieDeclarations]: Found implementation of procedure sendcmd [2021-11-25 17:49:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-25 17:49:06,798 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-25 17:49:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure get_drv [2021-11-25 17:49:06,799 INFO L138 BoogieDeclarations]: Found implementation of procedure get_drv [2021-11-25 17:49:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-25 17:49:06,799 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-25 17:49:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 17:49:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 17:49:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-25 17:49:06,800 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-25 17:49:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-25 17:49:06,801 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-25 17:49:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure ida_revalidate [2021-11-25 17:49:06,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_revalidate [2021-11-25 17:49:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 17:49:06,801 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 17:49:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 17:49:06,802 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 17:49:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_submit_command [2021-11-25 17:49:06,802 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_submit_command [2021-11-25 17:49:06,803 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-25 17:49:06,803 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-25 17:49:06,803 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-25 17:49:06,803 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-25 17:49:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-25 17:49:06,804 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-25 17:49:06,807 INFO L130 BoogieDeclarations]: Found specification of procedure cpqarray_register_ctlr [2021-11-25 17:49:06,807 INFO L138 BoogieDeclarations]: Found implementation of procedure cpqarray_register_ctlr [2021-11-25 17:49:06,807 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-25 17:49:06,807 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-25 17:49:06,807 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 17:49:06,809 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 17:49:06,810 INFO L130 BoogieDeclarations]: Found specification of procedure ida_ioctl [2021-11-25 17:49:06,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_ioctl [2021-11-25 17:49:06,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 17:49:06,816 INFO L130 BoogieDeclarations]: Found specification of procedure cmd_alloc [2021-11-25 17:49:06,816 INFO L138 BoogieDeclarations]: Found implementation of procedure cmd_alloc [2021-11-25 17:49:06,816 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_fifo_full [2021-11-25 17:49:06,816 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_fifo_full [2021-11-25 17:49:06,817 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_intr_pending [2021-11-25 17:49:06,817 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_intr_pending [2021-11-25 17:49:06,817 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 17:49:06,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 17:49:06,817 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_fifo_full [2021-11-25 17:49:06,817 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_fifo_full [2021-11-25 17:49:06,817 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_submit_command [2021-11-25 17:49:06,818 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_submit_command [2021-11-25 17:49:06,818 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_intr_pending [2021-11-25 17:49:06,818 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_intr_pending [2021-11-25 17:49:06,818 INFO L130 BoogieDeclarations]: Found specification of procedure get_host [2021-11-25 17:49:06,818 INFO L138 BoogieDeclarations]: Found implementation of procedure get_host [2021-11-25 17:49:06,818 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_submit_command [2021-11-25 17:49:06,818 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_submit_command [2021-11-25 17:49:06,819 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 17:49:06,819 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 17:49:06,819 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2021-11-25 17:49:06,819 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2021-11-25 17:49:06,819 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-25 17:49:06,819 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-25 17:49:06,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 17:49:06,820 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-25 17:49:06,820 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-25 17:49:06,820 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-11-25 17:49:06,820 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-11-25 17:49:06,820 INFO L130 BoogieDeclarations]: Found specification of procedure removeQ [2021-11-25 17:49:06,820 INFO L138 BoogieDeclarations]: Found implementation of procedure removeQ [2021-11-25 17:49:06,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 17:49:06,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 17:49:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 17:49:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 17:49:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 17:49:06,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 17:49:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 17:49:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 17:49:06,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 17:49:06,822 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_intr_mask [2021-11-25 17:49:06,822 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_intr_mask [2021-11-25 17:49:06,822 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-25 17:49:06,822 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-25 17:49:06,822 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 17:49:06,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 17:49:06,823 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-25 17:49:06,823 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-25 17:49:06,823 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_intr_mask [2021-11-25 17:49:06,823 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_intr_mask [2021-11-25 17:49:06,823 INFO L130 BoogieDeclarations]: Found specification of procedure getgeometry [2021-11-25 17:49:06,823 INFO L138 BoogieDeclarations]: Found implementation of procedure getgeometry [2021-11-25 17:49:06,823 INFO L130 BoogieDeclarations]: Found specification of procedure ida_getgeo [2021-11-25 17:49:06,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_getgeo [2021-11-25 17:49:06,824 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2021-11-25 17:49:06,824 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2021-11-25 17:49:06,824 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_fifo_full [2021-11-25 17:49:06,824 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_fifo_full [2021-11-25 17:49:06,824 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2021-11-25 17:49:06,824 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2021-11-25 17:49:06,825 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-25 17:49:06,825 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-25 17:49:06,825 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-25 17:49:06,825 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-25 17:49:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-25 17:49:06,827 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-25 17:49:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-25 17:49:06,827 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-25 17:49:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 17:49:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 17:49:06,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 17:49:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-25 17:49:06,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-11-25 17:49:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_completed [2021-11-25 17:49:06,828 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_completed [2021-11-25 17:49:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 17:49:06,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 17:49:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure addQ [2021-11-25 17:49:06,829 INFO L138 BoogieDeclarations]: Found implementation of procedure addQ [2021-11-25 17:49:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-25 17:49:06,829 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-25 17:49:07,675 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 17:49:07,679 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 17:49:11,738 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 17:49:12,824 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 17:49:12,825 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 17:49:12,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:49:12 BoogieIcfgContainer [2021-11-25 17:49:12,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 17:49:12,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 17:49:12,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 17:49:12,835 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 17:49:12,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:49:03" (1/3) ... [2021-11-25 17:49:12,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70aae83e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:49:12, skipping insertion in model container [2021-11-25 17:49:12,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:06" (2/3) ... [2021-11-25 17:49:12,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70aae83e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:49:12, skipping insertion in model container [2021-11-25 17:49:12,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:49:12" (3/3) ... [2021-11-25 17:49:12,838 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2021-11-25 17:49:12,844 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 17:49:12,844 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 17:49:12,899 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 17:49:12,906 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 17:49:12,906 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 17:49:12,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 1011 states, 630 states have (on average 1.3555555555555556) internal successors, (854), 657 states have internal predecessors, (854), 284 states have call successors, (284), 95 states have call predecessors, (284), 95 states have return successors, (284), 278 states have call predecessors, (284), 284 states have call successors, (284) [2021-11-25 17:49:12,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 17:49:12,967 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:12,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:49:12,968 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:12,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:12,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1087491975, now seen corresponding path program 1 times [2021-11-25 17:49:12,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:12,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928008486] [2021-11-25 17:49:12,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:12,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:13,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:13,531 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:13,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928008486] [2021-11-25 17:49:13,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928008486] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:13,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:13,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:49:13,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284102283] [2021-11-25 17:49:13,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:13,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:49:13,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:13,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:49:13,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:49:13,574 INFO L87 Difference]: Start difference. First operand has 1011 states, 630 states have (on average 1.3555555555555556) internal successors, (854), 657 states have internal predecessors, (854), 284 states have call successors, (284), 95 states have call predecessors, (284), 95 states have return successors, (284), 278 states have call predecessors, (284), 284 states have call successors, (284) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:16,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:49:20,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:20,217 INFO L93 Difference]: Finished difference Result 2748 states and 3865 transitions. [2021-11-25 17:49:20,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:49:20,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-25 17:49:20,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:20,252 INFO L225 Difference]: With dead ends: 2748 [2021-11-25 17:49:20,253 INFO L226 Difference]: Without dead ends: 1728 [2021-11-25 17:49:20,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:49:20,267 INFO L933 BasicCegarLoop]: 1438 mSDtfsCounter, 1004 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 2647 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:20,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1004 Valid, 2647 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2021-11-25 17:49:20,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2021-11-25 17:49:20,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1714. [2021-11-25 17:49:20,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1714 states, 1071 states have (on average 1.3529411764705883) internal successors, (1449), 1114 states have internal predecessors, (1449), 474 states have call successors, (474), 169 states have call predecessors, (474), 168 states have return successors, (468), 454 states have call predecessors, (468), 468 states have call successors, (468) [2021-11-25 17:49:20,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2391 transitions. [2021-11-25 17:49:20,452 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2391 transitions. Word has length 12 [2021-11-25 17:49:20,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:20,452 INFO L470 AbstractCegarLoop]: Abstraction has 1714 states and 2391 transitions. [2021-11-25 17:49:20,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:20,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2391 transitions. [2021-11-25 17:49:20,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-25 17:49:20,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:20,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:49:20,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 17:49:20,459 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:20,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:20,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1910046142, now seen corresponding path program 1 times [2021-11-25 17:49:20,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:20,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266246188] [2021-11-25 17:49:20,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:20,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:20,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:20,607 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:20,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266246188] [2021-11-25 17:49:20,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266246188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:20,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:20,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:49:20,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146711964] [2021-11-25 17:49:20,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:20,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:49:20,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:20,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:49:20,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:49:20,611 INFO L87 Difference]: Start difference. First operand 1714 states and 2391 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:24,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:24,185 INFO L93 Difference]: Finished difference Result 2102 states and 2870 transitions. [2021-11-25 17:49:24,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:49:24,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-25 17:49:24,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:24,203 INFO L225 Difference]: With dead ends: 2102 [2021-11-25 17:49:24,203 INFO L226 Difference]: Without dead ends: 2098 [2021-11-25 17:49:24,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:49:24,207 INFO L933 BasicCegarLoop]: 1400 mSDtfsCounter, 1053 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:24,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1053 Valid, 2102 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-25 17:49:24,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2021-11-25 17:49:24,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 2096. [2021-11-25 17:49:24,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2096 states, 1291 states have (on average 1.3292021688613478) internal successors, (1716), 1342 states have internal predecessors, (1716), 576 states have call successors, (576), 229 states have call predecessors, (576), 228 states have return successors, (572), 552 states have call predecessors, (572), 572 states have call successors, (572) [2021-11-25 17:49:24,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 2864 transitions. [2021-11-25 17:49:24,325 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 2864 transitions. Word has length 20 [2021-11-25 17:49:24,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:24,326 INFO L470 AbstractCegarLoop]: Abstraction has 2096 states and 2864 transitions. [2021-11-25 17:49:24,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:24,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 2864 transitions. [2021-11-25 17:49:24,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-25 17:49:24,329 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:24,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:49:24,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 17:49:24,329 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:24,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:24,330 INFO L85 PathProgramCache]: Analyzing trace with hash 917564299, now seen corresponding path program 1 times [2021-11-25 17:49:24,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:24,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173603607] [2021-11-25 17:49:24,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:24,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:24,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:24,456 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:24,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173603607] [2021-11-25 17:49:24,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173603607] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:24,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:24,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:49:24,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933636771] [2021-11-25 17:49:24,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:24,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:49:24,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:24,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:49:24,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:49:24,459 INFO L87 Difference]: Start difference. First operand 2096 states and 2864 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:26,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:26,851 INFO L93 Difference]: Finished difference Result 2098 states and 2865 transitions. [2021-11-25 17:49:26,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:49:26,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-25 17:49:26,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:26,866 INFO L225 Difference]: With dead ends: 2098 [2021-11-25 17:49:26,867 INFO L226 Difference]: Without dead ends: 2095 [2021-11-25 17:49:26,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:49:26,873 INFO L933 BasicCegarLoop]: 1219 mSDtfsCounter, 1383 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:26,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1383 Valid, 1219 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 17:49:26,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2095 states. [2021-11-25 17:49:26,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2095 to 2095. [2021-11-25 17:49:26,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2095 states, 1291 states have (on average 1.3284275755228505) internal successors, (1715), 1341 states have internal predecessors, (1715), 575 states have call successors, (575), 229 states have call predecessors, (575), 228 states have return successors, (572), 552 states have call predecessors, (572), 572 states have call successors, (572) [2021-11-25 17:49:26,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2095 states to 2095 states and 2862 transitions. [2021-11-25 17:49:26,984 INFO L78 Accepts]: Start accepts. Automaton has 2095 states and 2862 transitions. Word has length 21 [2021-11-25 17:49:26,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:26,985 INFO L470 AbstractCegarLoop]: Abstraction has 2095 states and 2862 transitions. [2021-11-25 17:49:26,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:26,986 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states and 2862 transitions. [2021-11-25 17:49:26,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-25 17:49:26,988 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:26,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:49:26,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 17:49:26,989 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:26,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:26,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1620820379, now seen corresponding path program 1 times [2021-11-25 17:49:26,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:26,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799005187] [2021-11-25 17:49:26,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:26,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:27,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:27,188 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:27,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799005187] [2021-11-25 17:49:27,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799005187] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:27,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:27,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:49:27,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465669348] [2021-11-25 17:49:27,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:27,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:49:27,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:27,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:49:27,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:49:27,192 INFO L87 Difference]: Start difference. First operand 2095 states and 2862 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:29,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:29,409 INFO L93 Difference]: Finished difference Result 2097 states and 2863 transitions. [2021-11-25 17:49:29,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:49:29,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-25 17:49:29,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:29,426 INFO L225 Difference]: With dead ends: 2097 [2021-11-25 17:49:29,426 INFO L226 Difference]: Without dead ends: 2094 [2021-11-25 17:49:29,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:49:29,432 INFO L933 BasicCegarLoop]: 1217 mSDtfsCounter, 1380 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:29,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1380 Valid, 1217 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-25 17:49:29,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2094 states. [2021-11-25 17:49:29,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2094 to 2094. [2021-11-25 17:49:29,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2094 states, 1291 states have (on average 1.3276529821843532) internal successors, (1714), 1340 states have internal predecessors, (1714), 574 states have call successors, (574), 229 states have call predecessors, (574), 228 states have return successors, (572), 552 states have call predecessors, (572), 572 states have call successors, (572) [2021-11-25 17:49:29,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2094 states to 2094 states and 2860 transitions. [2021-11-25 17:49:29,572 INFO L78 Accepts]: Start accepts. Automaton has 2094 states and 2860 transitions. Word has length 22 [2021-11-25 17:49:29,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:29,572 INFO L470 AbstractCegarLoop]: Abstraction has 2094 states and 2860 transitions. [2021-11-25 17:49:29,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:29,573 INFO L276 IsEmpty]: Start isEmpty. Operand 2094 states and 2860 transitions. [2021-11-25 17:49:29,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-25 17:49:29,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:29,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:49:29,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 17:49:29,575 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:29,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:29,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1293638094, now seen corresponding path program 1 times [2021-11-25 17:49:29,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:29,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783740004] [2021-11-25 17:49:29,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:29,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:29,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:29,753 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:29,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783740004] [2021-11-25 17:49:29,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783740004] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:29,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:29,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:49:29,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655890310] [2021-11-25 17:49:29,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:29,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:49:29,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:29,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:49:29,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:49:29,756 INFO L87 Difference]: Start difference. First operand 2094 states and 2860 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:31,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:49:32,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:32,866 INFO L93 Difference]: Finished difference Result 2096 states and 2861 transitions. [2021-11-25 17:49:32,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:49:32,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-25 17:49:32,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:32,881 INFO L225 Difference]: With dead ends: 2096 [2021-11-25 17:49:32,881 INFO L226 Difference]: Without dead ends: 2069 [2021-11-25 17:49:32,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:49:32,884 INFO L933 BasicCegarLoop]: 1216 mSDtfsCounter, 1377 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:32,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1377 Valid, 1216 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-25 17:49:32,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2069 states. [2021-11-25 17:49:32,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2069 to 2063. [2021-11-25 17:49:32,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2063 states, 1269 states have (on average 1.3246650906225375) internal successors, (1681), 1313 states have internal predecessors, (1681), 566 states have call successors, (566), 228 states have call predecessors, (566), 227 states have return successors, (565), 547 states have call predecessors, (565), 565 states have call successors, (565) [2021-11-25 17:49:33,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2063 states to 2063 states and 2812 transitions. [2021-11-25 17:49:33,010 INFO L78 Accepts]: Start accepts. Automaton has 2063 states and 2812 transitions. Word has length 23 [2021-11-25 17:49:33,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:33,011 INFO L470 AbstractCegarLoop]: Abstraction has 2063 states and 2812 transitions. [2021-11-25 17:49:33,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:49:33,012 INFO L276 IsEmpty]: Start isEmpty. Operand 2063 states and 2812 transitions. [2021-11-25 17:49:33,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-25 17:49:33,017 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:33,018 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:49:33,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 17:49:33,018 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:33,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:33,019 INFO L85 PathProgramCache]: Analyzing trace with hash -199610336, now seen corresponding path program 1 times [2021-11-25 17:49:33,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:33,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684481317] [2021-11-25 17:49:33,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:33,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:33,194 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:33,194 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:33,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684481317] [2021-11-25 17:49:33,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684481317] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:33,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:33,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:49:33,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479716865] [2021-11-25 17:49:33,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:33,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:49:33,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:33,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:49:33,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:49:33,197 INFO L87 Difference]: Start difference. First operand 2063 states and 2812 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-25 17:49:39,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:39,031 INFO L93 Difference]: Finished difference Result 4127 states and 5625 transitions. [2021-11-25 17:49:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:49:39,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2021-11-25 17:49:39,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:39,046 INFO L225 Difference]: With dead ends: 4127 [2021-11-25 17:49:39,047 INFO L226 Difference]: Without dead ends: 2059 [2021-11-25 17:49:39,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:49:39,058 INFO L933 BasicCegarLoop]: 1195 mSDtfsCounter, 1 mSDsluCounter, 2742 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3581 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:39,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 3581 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2021-11-25 17:49:39,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2021-11-25 17:49:39,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 2059. [2021-11-25 17:49:39,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2059 states, 1267 states have (on average 1.3228097868981847) internal successors, (1676), 1311 states have internal predecessors, (1676), 565 states have call successors, (565), 227 states have call predecessors, (565), 226 states have return successors, (564), 546 states have call predecessors, (564), 564 states have call successors, (564) [2021-11-25 17:49:39,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2059 states to 2059 states and 2805 transitions. [2021-11-25 17:49:39,174 INFO L78 Accepts]: Start accepts. Automaton has 2059 states and 2805 transitions. Word has length 40 [2021-11-25 17:49:39,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:39,175 INFO L470 AbstractCegarLoop]: Abstraction has 2059 states and 2805 transitions. [2021-11-25 17:49:39,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-25 17:49:39,175 INFO L276 IsEmpty]: Start isEmpty. Operand 2059 states and 2805 transitions. [2021-11-25 17:49:39,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-25 17:49:39,179 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:39,179 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:49:39,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 17:49:39,180 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:39,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:39,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1792933365, now seen corresponding path program 1 times [2021-11-25 17:49:39,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:39,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956432724] [2021-11-25 17:49:39,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:39,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:39,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:39,295 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:39,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956432724] [2021-11-25 17:49:39,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956432724] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:39,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:39,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:49:39,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617622683] [2021-11-25 17:49:39,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:39,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:49:39,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:39,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:49:39,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:49:39,297 INFO L87 Difference]: Start difference. First operand 2059 states and 2805 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-25 17:49:43,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:43,176 INFO L93 Difference]: Finished difference Result 4118 states and 5611 transitions. [2021-11-25 17:49:43,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:49:43,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2021-11-25 17:49:43,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:43,193 INFO L225 Difference]: With dead ends: 4118 [2021-11-25 17:49:43,193 INFO L226 Difference]: Without dead ends: 2060 [2021-11-25 17:49:43,203 INFO L932 BasicCegarLoop]: 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 [2021-11-25 17:49:43,204 INFO L933 BasicCegarLoop]: 1190 mSDtfsCounter, 0 mSDsluCounter, 1365 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2379 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:43,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2379 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-11-25 17:49:43,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2060 states. [2021-11-25 17:49:43,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2060 to 2060. [2021-11-25 17:49:43,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2060 states, 1268 states have (on average 1.3225552050473186) internal successors, (1677), 1312 states have internal predecessors, (1677), 565 states have call successors, (565), 227 states have call predecessors, (565), 226 states have return successors, (564), 546 states have call predecessors, (564), 564 states have call successors, (564) [2021-11-25 17:49:43,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 2806 transitions. [2021-11-25 17:49:43,334 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 2806 transitions. Word has length 45 [2021-11-25 17:49:43,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:43,334 INFO L470 AbstractCegarLoop]: Abstraction has 2060 states and 2806 transitions. [2021-11-25 17:49:43,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-25 17:49:43,335 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 2806 transitions. [2021-11-25 17:49:43,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-25 17:49:43,338 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:43,339 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:49:43,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 17:49:43,339 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:49:43,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:43,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1950333678, now seen corresponding path program 1 times [2021-11-25 17:49:43,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:43,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882832163] [2021-11-25 17:49:43,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:43,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:43,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:43,500 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:43,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882832163] [2021-11-25 17:49:43,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882832163] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 17:49:43,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981918192] [2021-11-25 17:49:43,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:43,501 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:49:43,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:49:43,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:49:43,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 17:49:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:44,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 1751 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 17:49:44,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:49:44,313 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:44,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 17:49:44,450 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:49:44,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981918192] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 17:49:44,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [984286435] [2021-11-25 17:49:44,470 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2021-11-25 17:49:44,470 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 17:49:44,475 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 17:49:44,481 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 17:49:44,481 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 17:49:46,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 650 treesize of output 540 [2021-11-25 17:49:47,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 646 treesize of output 536 [2021-11-25 17:50:27,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2021-11-25 17:50:27,989 INFO L354 Elim1Store]: treesize reduction 94, result has 35.2 percent of original size [2021-11-25 17:50:27,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 72 [2021-11-25 17:50:28,122 INFO L354 Elim1Store]: treesize reduction 54, result has 48.6 percent of original size [2021-11-25 17:50:28,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 78 [2021-11-25 17:50:29,939 INFO L197 IcfgInterpreter]: Interpreting procedure get_host with input of size 291 for LOIs [2021-11-25 17:50:29,984 INFO L197 IcfgInterpreter]: Interpreting procedure mutex_lock with input of size 291 for LOIs [2021-11-25 17:50:30,034 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_mutex_unlock_cpqarray_mutex with input of size 419 for LOIs [2021-11-25 17:50:30,387 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_mutex_lock_cpqarray_mutex with input of size 291 for LOIs [2021-11-25 17:50:30,549 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 17:52:01,279 WARN L227 SmtUtils]: Spent 1.49m on a formula simplification. DAG size of input: 2464 DAG size of output: 2161 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 17:52:56,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [984286435] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:52:56,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-25 17:52:56,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [4, 4, 4] total 43 [2021-11-25 17:52:56,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094713972] [2021-11-25 17:52:56,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:52:56,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-11-25 17:52:56,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:52:56,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-11-25 17:52:56,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1643, Unknown=0, NotChecked=0, Total=1806 [2021-11-25 17:52:56,650 INFO L87 Difference]: Start difference. First operand 2060 states and 2806 transitions. Second operand has 38 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 32 states have internal predecessors, (36), 4 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-25 17:53:30,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:32,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:34,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:36,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:39,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:47,646 WARN L227 SmtUtils]: Spent 6.67s on a formula simplification. DAG size of input: 596 DAG size of output: 362 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 17:54:20,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:21,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:23,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:26,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:28,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:30,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:34,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:48,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:51,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:53,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:55,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:56,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:54:58,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:00,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:05,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:09,034 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:11,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:13,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:15,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:55:28,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:55:28,175 INFO L93 Difference]: Finished difference Result 4531 states and 6297 transitions. [2021-11-25 17:55:28,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-25 17:55:28,181 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 32 states have internal predecessors, (36), 4 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2021-11-25 17:55:28,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:55:28,197 INFO L225 Difference]: With dead ends: 4531 [2021-11-25 17:55:28,197 INFO L226 Difference]: Without dead ends: 2472 [2021-11-25 17:55:28,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 746 ImplicationChecksByTransitivity, 165.6s TimeCoverageRelationStatistics Valid=230, Invalid=2220, Unknown=0, NotChecked=0, Total=2450 [2021-11-25 17:55:28,207 INFO L933 BasicCegarLoop]: 1155 mSDtfsCounter, 313 mSDsluCounter, 17298 mSDsCounter, 0 mSdLazyCounter, 12176 mSolverCounterSat, 82 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 123.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 16483 SdHoareTripleChecker+Invalid, 12271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 12176 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 131.2s IncrementalHoareTripleChecker+Time [2021-11-25 17:55:28,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 16483 Invalid, 12271 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [82 Valid, 12176 Invalid, 13 Unknown, 0 Unchecked, 131.2s Time] [2021-11-25 17:55:28,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2472 states. [2021-11-25 17:55:28,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2472 to 2345. [2021-11-25 17:55:28,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2345 states, 1492 states have (on average 1.3726541554959786) internal successors, (2048), 1538 states have internal predecessors, (2048), 623 states have call successors, (623), 231 states have call predecessors, (623), 229 states have return successors, (622), 603 states have call predecessors, (622), 622 states have call successors, (622) [2021-11-25 17:55:28,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 3293 transitions. [2021-11-25 17:55:28,504 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 3293 transitions. Word has length 46 [2021-11-25 17:55:28,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:55:28,505 INFO L470 AbstractCegarLoop]: Abstraction has 2345 states and 3293 transitions. [2021-11-25 17:55:28,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 32 states have internal predecessors, (36), 4 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-25 17:55:28,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 3293 transitions. [2021-11-25 17:55:28,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-25 17:55:28,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:55:28,512 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:55:28,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 17:55:28,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-25 17:55:28,729 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:55:28,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:55:28,729 INFO L85 PathProgramCache]: Analyzing trace with hash -2056591365, now seen corresponding path program 1 times [2021-11-25 17:55:28,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:55:28,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271733446] [2021-11-25 17:55:28,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:55:28,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:55:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:55:28,901 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 17:55:28,901 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:55:28,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271733446] [2021-11-25 17:55:28,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271733446] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 17:55:28,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740328806] [2021-11-25 17:55:28,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:55:28,902 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:55:28,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:55:28,903 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:55:28,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2822418-ee5a-4738-a4f3-2c059da378b5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 17:55:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:55:29,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 1764 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 17:55:29,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:55:29,600 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 17:55:29,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 17:55:29,693 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 17:55:29,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740328806] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 17:55:29,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [382377142] [2021-11-25 17:55:29,697 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2021-11-25 17:55:29,697 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 17:55:29,697 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 17:55:29,697 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 17:55:29,698 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 17:55:31,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 646 treesize of output 536 [2021-11-25 17:55:32,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:55:32,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:55:32,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:55:32,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:55:32,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:55:32,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:55:32,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:55:32,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:55:32,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:55:32,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:55:32,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:55:32,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:55:32,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:55:32,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:55:32,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:55:32,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:55:32,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:55:32,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:55:32,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 650 treesize of output 540 [2021-11-25 17:57:27,455 INFO L354 Elim1Store]: treesize reduction 94, result has 35.2 percent of original size [2021-11-25 17:57:27,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 930 treesize of output 916 [2021-11-25 17:57:27,724 INFO L354 Elim1Store]: treesize reduction 54, result has 48.6 percent of original size [2021-11-25 17:57:27,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 913 treesize of output 913 [2021-11-25 17:57:40,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2021-11-25 17:58:09,371 INFO L197 IcfgInterpreter]: Interpreting procedure get_host with input of size 542 for LOIs [2021-11-25 17:58:09,779 INFO L197 IcfgInterpreter]: Interpreting procedure mutex_lock with input of size 542 for LOIs [2021-11-25 17:58:10,184 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_mutex_unlock_cpqarray_mutex with input of size 593 for LOIs [2021-11-25 17:58:14,214 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_mutex_lock_cpqarray_mutex with input of size 538 for LOIs [2021-11-25 17:58:15,351 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 17:58:25,695 WARN L227 SmtUtils]: Spent 9.38s on a formula simplification. DAG size of input: 537 DAG size of output: 387 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 17:58:35,330 WARN L227 SmtUtils]: Spent 9.50s on a formula simplification. DAG size of input: 544 DAG size of output: 394 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 17:58:45,171 WARN L227 SmtUtils]: Spent 9.67s on a formula simplification. DAG size of input: 547 DAG size of output: 397 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 17:58:55,054 WARN L227 SmtUtils]: Spent 9.68s on a formula simplification. DAG size of input: 550 DAG size of output: 400 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 17:59:05,015 WARN L227 SmtUtils]: Spent 9.73s on a formula simplification. DAG size of input: 553 DAG size of output: 403 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 17:59:15,094 WARN L227 SmtUtils]: Spent 9.81s on a formula simplification. DAG size of input: 556 DAG size of output: 406 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 17:59:25,242 WARN L227 SmtUtils]: Spent 9.84s on a formula simplification. DAG size of input: 559 DAG size of output: 409 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 17:59:34,874 WARN L227 SmtUtils]: Spent 9.32s on a formula simplification. DAG size of input: 535 DAG size of output: 385 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 17:59:44,909 WARN L227 SmtUtils]: Spent 9.68s on a formula simplification. DAG size of input: 548 DAG size of output: 398 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 17:59:55,104 WARN L227 SmtUtils]: Spent 9.81s on a formula simplification. DAG size of input: 550 DAG size of output: 400 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:00:04,932 WARN L227 SmtUtils]: Spent 9.43s on a formula simplification. DAG size of input: 538 DAG size of output: 388 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:00:15,729 WARN L227 SmtUtils]: Spent 10.35s on a formula simplification. DAG size of input: 578 DAG size of output: 425 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:00:26,602 WARN L227 SmtUtils]: Spent 10.40s on a formula simplification. DAG size of input: 580 DAG size of output: 425 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:00:37,828 WARN L227 SmtUtils]: Spent 10.71s on a formula simplification. DAG size of input: 595 DAG size of output: 440 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:00:48,862 WARN L227 SmtUtils]: Spent 10.50s on a formula simplification. DAG size of input: 587 DAG size of output: 432 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:01:05,632 WARN L227 SmtUtils]: Spent 9.33s on a formula simplification. DAG size of input: 534 DAG size of output: 384 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:01:15,828 WARN L227 SmtUtils]: Spent 9.69s on a formula simplification. DAG size of input: 549 DAG size of output: 399 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:01:25,700 WARN L227 SmtUtils]: Spent 9.34s on a formula simplification. DAG size of input: 539 DAG size of output: 389 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)