./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d3eedf009c0354e40f9e91d5f02bdbd29fc69486fea85bd401e2764ccaedb5c6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:49:56,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:49:56,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:49:56,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:49:56,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:49:56,759 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:49:56,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:49:56,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:49:56,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:49:56,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:49:56,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:49:56,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:49:56,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:49:56,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:49:56,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:49:56,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:49:56,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:49:56,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:49:56,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:49:56,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:49:56,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:49:56,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:49:56,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:49:56,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:49:56,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:49:56,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:49:56,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:49:56,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:49:56,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:49:56,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:49:56,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:49:56,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:49:56,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:49:56,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:49:56,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:49:56,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:49:56,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:49:56,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:49:56,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:49:56,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:49:56,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:49:56,805 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:49:56,830 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:49:56,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:49:56,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:49:56,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:49:56,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:49:56,832 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:49:56,832 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:49:56,832 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:49:56,833 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:49:56,833 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:49:56,833 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:49:56,833 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:49:56,834 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:49:56,834 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:49:56,834 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:49:56,834 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:49:56,835 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:49:56,835 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:49:56,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:49:56,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:49:56,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:49:56,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:49:56,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:49:56,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:49:56,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:49:56,838 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:49:56,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:49:56,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:49:56,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:49:56,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:49:56,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:49:56,839 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:49:56,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:49:56,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:49:56,840 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:49:56,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:49:56,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:49:56,841 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:49:56,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3eedf009c0354e40f9e91d5f02bdbd29fc69486fea85bd401e2764ccaedb5c6 [2022-11-23 14:49:57,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:49:57,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:49:57,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:49:57,118 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:49:57,119 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:49:57,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i [2022-11-23 14:50:00,170 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:50:01,068 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:50:01,069 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i [2022-11-23 14:50:01,140 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/data/123eb7281/f63eb34ef5364111a81e95cc7b9103ff/FLAG5a5a8fa38 [2022-11-23 14:50:01,156 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/data/123eb7281/f63eb34ef5364111a81e95cc7b9103ff [2022-11-23 14:50:01,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:50:01,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:50:01,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:50:01,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:50:01,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:50:01,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:01" (1/1) ... [2022-11-23 14:50:01,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@172fb297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:01, skipping insertion in model container [2022-11-23 14:50:01,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:01" (1/1) ... [2022-11-23 14:50:01,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:50:01,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:50:02,257 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i[223980,223993] [2022-11-23 14:50:05,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:50:05,766 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:50:06,001 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i[223980,223993] [2022-11-23 14:50:06,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:50:06,878 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:50:06,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06 WrapperNode [2022-11-23 14:50:06,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:50:06,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:50:06,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:50:06,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:50:06,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:07,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:07,710 INFO L138 Inliner]: procedures = 401, calls = 9042, calls flagged for inlining = 179, calls inlined = 176, statements flattened = 16017 [2022-11-23 14:50:07,727 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:50:07,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:50:07,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:50:07,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:50:07,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:07,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:07,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:07,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:08,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:08,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:08,968 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:09,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:09,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:50:09,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:50:09,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:50:09,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:50:09,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:09,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:50:09,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:50:09,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:50:09,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:50:09,237 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-23 14:50:09,238 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-23 14:50:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_phy_iq_calibrate [2022-11-23 14:50:09,238 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_phy_iq_calibrate [2022-11-23 14:50:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 14:50:09,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 14:50:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_deinit_sw_leds [2022-11-23 14:50:09,239 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_deinit_sw_leds [2022-11-23 14:50:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_set_key [2022-11-23 14:50:09,239 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_set_key [2022-11-23 14:50:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_set_media_status [2022-11-23 14:50:09,239 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_set_media_status [2022-11-23 14:50:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-23 14:50:09,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-23 14:50:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2022-11-23 14:50:09,240 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2022-11-23 14:50:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_enable_hw_security_config [2022-11-23 14:50:09,240 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_enable_hw_security_config [2022-11-23 14:50:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_rfreg_delay [2022-11-23 14:50:09,241 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_rfreg_delay [2022-11-23 14:50:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-23 14:50:09,242 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-23 14:50:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_set_network_type [2022-11-23 14:50:09,242 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_set_network_type [2022-11-23 14:50:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_query_rxpwrpercentage [2022-11-23 14:50:09,243 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_query_rxpwrpercentage [2022-11-23 14:50:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2022-11-23 14:50:09,244 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2022-11-23 14:50:09,244 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_addr_delay [2022-11-23 14:50:09,245 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_addr_delay [2022-11-23 14:50:09,245 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_init_sw_leds [2022-11-23 14:50:09,245 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_init_sw_leds [2022-11-23 14:50:09,245 INFO L130 BoogieDeclarations]: Found specification of procedure _DisableAnalog [2022-11-23 14:50:09,245 INFO L138 BoogieDeclarations]: Found implementation of procedure _DisableAnalog [2022-11-23 14:50:09,245 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-23 14:50:09,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-23 14:50:09,246 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 14:50:09,246 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 14:50:09,246 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_fill_fake_txdesc [2022-11-23 14:50:09,247 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_fill_fake_txdesc [2022-11-23 14:50:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl_tx_desc_checksum [2022-11-23 14:50:09,247 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl_tx_desc_checksum [2022-11-23 14:50:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_set_qos [2022-11-23 14:50:09,247 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_set_qos [2022-11-23 14:50:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_phy_rf_serial_read [2022-11-23 14:50:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_phy_rf_serial_read [2022-11-23 14:50:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2022-11-23 14:50:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2022-11-23 14:50:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_gpio_radio_on_off_checking [2022-11-23 14:50:09,249 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_gpio_radio_on_off_checking [2022-11-23 14:50:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_set_check_bssid [2022-11-23 14:50:09,249 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_set_check_bssid [2022-11-23 14:50:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_mgmt [2022-11-23 14:50:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_mgmt [2022-11-23 14:50:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-23 14:50:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 14:50:09,250 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 14:50:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:50:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_update_hal_rate_tbl [2022-11-23 14:50:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_update_hal_rate_tbl [2022-11-23 14:50:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure get_rf_type [2022-11-23 14:50:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rf_type [2022-11-23 14:50:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 14:50:09,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 14:50:09,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:50:09,252 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_read_chip_version [2022-11-23 14:50:09,252 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_read_chip_version [2022-11-23 14:50:09,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 14:50:09,252 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 14:50:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure dm_writepowerindex [2022-11-23 14:50:09,253 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_writepowerindex [2022-11-23 14:50:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_cmd_send_packet [2022-11-23 14:50:09,254 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_cmd_send_packet [2022-11-23 14:50:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-23 14:50:09,254 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-23 14:50:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_update_channel_access_setting [2022-11-23 14:50:09,255 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_update_channel_access_setting [2022-11-23 14:50:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_init_led [2022-11-23 14:50:09,256 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_init_led [2022-11-23 14:50:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_phy_set_bb_reg [2022-11-23 14:50:09,257 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_phy_set_bb_reg [2022-11-23 14:50:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_translate_rx_signal_stuff [2022-11-23 14:50:09,257 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_translate_rx_signal_stuff [2022-11-23 14:50:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2022-11-23 14:50:09,258 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2022-11-23 14:50:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_stop_tx_beacon [2022-11-23 14:50:09,258 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_stop_tx_beacon [2022-11-23 14:50:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_beacon [2022-11-23 14:50:09,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_beacon [2022-11-23 14:50:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2022-11-23 14:50:09,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2022-11-23 14:50:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-11-23 14:50:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_phy_query_bb_reg [2022-11-23 14:50:09,260 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_phy_query_bb_reg [2022-11-23 14:50:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2022-11-23 14:50:09,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2022-11-23 14:50:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_set_beacon_related_registers [2022-11-23 14:50:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_set_beacon_related_registers [2022-11-23 14:50:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:50:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_init_chipN_reg_priority [2022-11-23 14:50:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_init_chipN_reg_priority [2022-11-23 14:50:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure _DisableRFAFEAndResetBB [2022-11-23 14:50:09,262 INFO L138 BoogieDeclarations]: Found implementation of procedure _DisableRFAFEAndResetBB [2022-11-23 14:50:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:50:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 14:50:09,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 14:50:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:50:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 14:50:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_resume_tx_beacon [2022-11-23 14:50:09,263 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_resume_tx_beacon [2022-11-23 14:50:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_led_control [2022-11-23 14:50:09,267 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_led_control [2022-11-23 14:50:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_disable_interrupt [2022-11-23 14:50:09,268 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_disable_interrupt [2022-11-23 14:50:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_set_rf_power_state [2022-11-23 14:50:09,270 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_set_rf_power_state [2022-11-23 14:50:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_dm_watchdog [2022-11-23 14:50:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_dm_watchdog [2022-11-23 14:50:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 14:50:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 14:50:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_phy_sw_chnl [2022-11-23 14:50:09,278 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_phy_sw_chnl [2022-11-23 14:50:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_cam_add_one_entry [2022-11-23 14:50:09,278 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_cam_add_one_entry [2022-11-23 14:50:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:50:09,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:50:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_init_sw_vars [2022-11-23 14:50:09,279 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_init_sw_vars [2022-11-23 14:50:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_signal_scale_mapping [2022-11-23 14:50:09,279 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_signal_scale_mapping [2022-11-23 14:50:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_phy_set_bw_mode [2022-11-23 14:50:09,279 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_phy_set_bw_mode [2022-11-23 14:50:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_tx_fill_cmddesc [2022-11-23 14:50:09,279 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_tx_fill_cmddesc [2022-11-23 14:50:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 14:50:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 14:50:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 14:50:09,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 14:50:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_phy_calculate_bit_shift [2022-11-23 14:50:09,280 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_phy_calculate_bit_shift [2022-11-23 14:50:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_DA [2022-11-23 14:50:09,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_DA [2022-11-23 14:50:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_rfreg [2022-11-23 14:50:09,281 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_rfreg [2022-11-23 14:50:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure _DisableGPIO [2022-11-23 14:50:09,281 INFO L138 BoogieDeclarations]: Found implementation of procedure _DisableGPIO [2022-11-23 14:50:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-23 14:50:09,282 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-23 14:50:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_enable_interrupt [2022-11-23 14:50:09,282 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_enable_interrupt [2022-11-23 14:50:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_set_bw_mode_callback [2022-11-23 14:50:09,282 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_set_bw_mode_callback [2022-11-23 14:50:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2022-11-23 14:50:09,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2022-11-23 14:50:09,283 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_hw_init [2022-11-23 14:50:09,283 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_hw_init [2022-11-23 14:50:09,283 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2022-11-23 14:50:09,283 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2022-11-23 14:50:09,283 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_deInit_led [2022-11-23 14:50:09,283 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_deInit_led [2022-11-23 14:50:09,284 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2022-11-23 14:50:09,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2022-11-23 14:50:09,284 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2022-11-23 14:50:09,284 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2022-11-23 14:50:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 14:50:09,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 14:50:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2022-11-23 14:50:09,285 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2022-11-23 14:50:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_rx_query_desc [2022-11-23 14:50:09,285 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_rx_query_desc [2022-11-23 14:50:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:50:09,286 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:50:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 14:50:09,286 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 14:50:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_config_rf_with_headerfile [2022-11-23 14:50:09,286 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_config_rf_with_headerfile [2022-11-23 14:50:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_dm_dynamic_txpower [2022-11-23 14:50:09,287 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_dm_dynamic_txpower [2022-11-23 14:50:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_query_rf_reg [2022-11-23 14:50:09,287 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_query_rf_reg [2022-11-23 14:50:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_phy_config_bb_with_headerfile [2022-11-23 14:50:09,287 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_phy_config_bb_with_headerfile [2022-11-23 14:50:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:50:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_rf6052_set_cck_txpower [2022-11-23 14:50:09,288 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_rf6052_set_cck_txpower [2022-11-23 14:50:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:50:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_get_hw_reg [2022-11-23 14:50:09,288 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_get_hw_reg [2022-11-23 14:50:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_deinit_sw_vars [2022-11-23 14:50:09,289 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_deinit_sw_vars [2022-11-23 14:50:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_phy_config_bb_with_pgheaderfile [2022-11-23 14:50:09,289 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_phy_config_bb_with_pgheaderfile [2022-11-23 14:50:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:50:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-23 14:50:09,289 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-23 14:50:09,290 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_fill_h2c_cmd [2022-11-23 14:50:09,290 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_fill_h2c_cmd [2022-11-23 14:50:09,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 14:50:09,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 14:50:09,290 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_set_rf_reg [2022-11-23 14:50:09,290 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_set_rf_reg [2022-11-23 14:50:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_rfreg [2022-11-23 14:50:09,291 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_rfreg [2022-11-23 14:50:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure rtlwifi_rate_mapping [2022-11-23 14:50:09,291 INFO L138 BoogieDeclarations]: Found implementation of procedure rtlwifi_rate_mapping [2022-11-23 14:50:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-23 14:50:09,291 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-23 14:50:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2022-11-23 14:50:09,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2022-11-23 14:50:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_phy_scan_operation_backup [2022-11-23 14:50:09,292 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_phy_scan_operation_backup [2022-11-23 14:50:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_phy_lc_calibrate [2022-11-23 14:50:09,292 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_phy_lc_calibrate [2022-11-23 14:50:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_set_beacon_interval [2022-11-23 14:50:09,293 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_set_beacon_interval [2022-11-23 14:50:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:50:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_rf6052_config [2022-11-23 14:50:09,293 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_rf6052_config [2022-11-23 14:50:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 14:50:09,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 14:50:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_bbreg [2022-11-23 14:50:09,294 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_bbreg [2022-11-23 14:50:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_tx_fill_desc [2022-11-23 14:50:09,294 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_tx_fill_desc [2022-11-23 14:50:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure _ResetDigitalProcedure1 [2022-11-23 14:50:09,294 INFO L138 BoogieDeclarations]: Found implementation of procedure _ResetDigitalProcedure1 [2022-11-23 14:50:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_llt_write [2022-11-23 14:50:09,295 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_llt_write [2022-11-23 14:50:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_bbreg [2022-11-23 14:50:09,295 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_bbreg [2022-11-23 14:50:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-23 14:50:09,295 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-23 14:50:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_RXCB [2022-11-23 14:50:09,296 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_RXCB [2022-11-23 14:50:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-23 14:50:09,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-23 14:50:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_update_interrupt_mask [2022-11-23 14:50:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_update_interrupt_mask [2022-11-23 14:50:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_set_bcn_ctrl_reg [2022-11-23 14:50:09,301 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_set_bcn_ctrl_reg [2022-11-23 14:50:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_set_hw_reg [2022-11-23 14:50:09,301 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_set_hw_reg [2022-11-23 14:50:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_rf6052_set_ofdm_txpower [2022-11-23 14:50:09,302 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_rf6052_set_ofdm_txpower [2022-11-23 14:50:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_phy_fw_rf_serial_read [2022-11-23 14:50:09,302 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_phy_fw_rf_serial_read [2022-11-23 14:50:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-23 14:50:09,303 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-23 14:50:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2022-11-23 14:50:09,304 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2022-11-23 14:50:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_get_chnl_group [2022-11-23 14:50:09,305 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_get_chnl_group [2022-11-23 14:50:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:50:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_card_disable [2022-11-23 14:50:09,305 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_card_disable [2022-11-23 14:50:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-11-23 14:50:09,306 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-23 14:50:09,306 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-23 14:50:10,881 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:50:10,884 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:50:11,494 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 14:52:24,883 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:52:30,852 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:52:30,853 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 14:52:30,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:52:30 BoogieIcfgContainer [2022-11-23 14:52:30,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:52:30,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:52:30,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:52:30,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:52:30,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:50:01" (1/3) ... [2022-11-23 14:52:30,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50cac2a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:52:30, skipping insertion in model container [2022-11-23 14:52:30,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (2/3) ... [2022-11-23 14:52:30,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50cac2a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:52:30, skipping insertion in model container [2022-11-23 14:52:30,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:52:30" (3/3) ... [2022-11-23 14:52:30,867 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i [2022-11-23 14:52:30,889 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:52:30,889 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:52:31,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:52:31,014 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3dd205dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:52:31,014 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:52:31,030 INFO L276 IsEmpty]: Start isEmpty. Operand has 3523 states, 2175 states have (on average 1.374712643678161) internal successors, (2990), 2259 states have internal predecessors, (2990), 1228 states have call successors, (1228), 119 states have call predecessors, (1228), 118 states have return successors, (1223), 1191 states have call predecessors, (1223), 1223 states have call successors, (1223) [2022-11-23 14:52:31,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-23 14:52:31,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:52:31,050 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:52:31,063 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:52:31,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:52:31,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1663591832, now seen corresponding path program 1 times [2022-11-23 14:52:31,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:52:31,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276044293] [2022-11-23 14:52:31,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:52:31,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:52:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:52:33,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1075 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1075 trivial. 0 not checked. [2022-11-23 14:52:33,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:52:33,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276044293] [2022-11-23 14:52:33,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276044293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:52:33,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:52:33,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:52:33,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361576071] [2022-11-23 14:52:33,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:52:33,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:52:33,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:52:33,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:52:33,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:52:34,000 INFO L87 Difference]: Start difference. First operand has 3523 states, 2175 states have (on average 1.374712643678161) internal successors, (2990), 2259 states have internal predecessors, (2990), 1228 states have call successors, (1228), 119 states have call predecessors, (1228), 118 states have return successors, (1223), 1191 states have call predecessors, (1223), 1223 states have call successors, (1223) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2022-11-23 14:52:36,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:39,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:41,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:43,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:46,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:49,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:52:53,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:52:53,690 INFO L93 Difference]: Finished difference Result 10131 states and 15672 transitions. [2022-11-23 14:52:53,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:52:53,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 206 [2022-11-23 14:52:53,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:52:53,787 INFO L225 Difference]: With dead ends: 10131 [2022-11-23 14:52:53,787 INFO L226 Difference]: Without dead ends: 6659 [2022-11-23 14:52:53,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:52:53,835 INFO L413 NwaCegarLoop]: 6171 mSDtfsCounter, 4877 mSDsluCounter, 5081 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4883 SdHoareTripleChecker+Valid, 11252 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:52:53,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4883 Valid, 11252 Invalid, 703 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 691 Invalid, 5 Unknown, 0 Unchecked, 18.9s Time] [2022-11-23 14:52:53,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6659 states. [2022-11-23 14:52:54,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6659 to 6656. [2022-11-23 14:52:54,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6656 states, 4135 states have (on average 1.3760580411124546) internal successors, (5690), 4277 states have internal predecessors, (5690), 2298 states have call successors, (2298), 224 states have call predecessors, (2298), 222 states have return successors, (2299), 2232 states have call predecessors, (2299), 2297 states have call successors, (2299) [2022-11-23 14:52:54,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6656 states to 6656 states and 10287 transitions. [2022-11-23 14:52:54,945 INFO L78 Accepts]: Start accepts. Automaton has 6656 states and 10287 transitions. Word has length 206 [2022-11-23 14:52:54,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:52:54,946 INFO L495 AbstractCegarLoop]: Abstraction has 6656 states and 10287 transitions. [2022-11-23 14:52:54,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2022-11-23 14:52:54,947 INFO L276 IsEmpty]: Start isEmpty. Operand 6656 states and 10287 transitions. [2022-11-23 14:52:54,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-23 14:52:54,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:52:54,956 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:52:54,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:52:54,956 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:52:54,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:52:54,958 INFO L85 PathProgramCache]: Analyzing trace with hash -44174386, now seen corresponding path program 1 times [2022-11-23 14:52:54,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:52:54,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081418342] [2022-11-23 14:52:54,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:52:54,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:52:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:52:57,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1155 trivial. 0 not checked. [2022-11-23 14:52:57,950 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:52:57,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081418342] [2022-11-23 14:52:57,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081418342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:52:57,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:52:57,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:52:57,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858398737] [2022-11-23 14:52:57,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:52:57,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:52:57,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:52:57,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:52:57,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:52:57,957 INFO L87 Difference]: Start difference. First operand 6656 states and 10287 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-23 14:53:00,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:05,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:07,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:08,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:10,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:16,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:19,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:20,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:53:20,781 INFO L93 Difference]: Finished difference Result 12967 states and 20057 transitions. [2022-11-23 14:53:20,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:53:20,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 215 [2022-11-23 14:53:20,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:53:20,878 INFO L225 Difference]: With dead ends: 12967 [2022-11-23 14:53:20,879 INFO L226 Difference]: Without dead ends: 12962 [2022-11-23 14:53:20,892 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:53:20,893 INFO L413 NwaCegarLoop]: 6160 mSDtfsCounter, 4889 mSDsluCounter, 11187 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4895 SdHoareTripleChecker+Valid, 17347 SdHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:53:20,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4895 Valid, 17347 Invalid, 1034 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1029 Invalid, 5 Unknown, 0 Unchecked, 22.3s Time] [2022-11-23 14:53:20,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12962 states. [2022-11-23 14:53:22,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12962 to 12957. [2022-11-23 14:53:22,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12957 states, 8070 states have (on average 1.379182156133829) internal successors, (11130), 8342 states have internal predecessors, (11130), 4454 states have call successors, (4454), 436 states have call predecessors, (4454), 432 states have return successors, (4461), 4322 states have call predecessors, (4461), 4453 states have call successors, (4461) [2022-11-23 14:53:22,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12957 states to 12957 states and 20045 transitions. [2022-11-23 14:53:22,313 INFO L78 Accepts]: Start accepts. Automaton has 12957 states and 20045 transitions. Word has length 215 [2022-11-23 14:53:22,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:53:22,316 INFO L495 AbstractCegarLoop]: Abstraction has 12957 states and 20045 transitions. [2022-11-23 14:53:22,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-23 14:53:22,317 INFO L276 IsEmpty]: Start isEmpty. Operand 12957 states and 20045 transitions. [2022-11-23 14:53:22,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-11-23 14:53:22,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:53:22,334 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:53:22,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:53:22,334 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:53:22,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:53:22,337 INFO L85 PathProgramCache]: Analyzing trace with hash -288017161, now seen corresponding path program 1 times [2022-11-23 14:53:22,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:53:22,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536006786] [2022-11-23 14:53:22,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:53:22,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:53:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:53:23,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1242 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1239 trivial. 0 not checked. [2022-11-23 14:53:23,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:53:23,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536006786] [2022-11-23 14:53:23,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536006786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:53:23,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:53:23,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:53:23,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275481662] [2022-11-23 14:53:23,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:53:23,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:53:23,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:53:23,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:53:23,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:53:23,733 INFO L87 Difference]: Start difference. First operand 12957 states and 20045 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-23 14:53:25,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:28,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:31,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:34,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:36,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:40,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:42,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:44,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:53:44,414 INFO L93 Difference]: Finished difference Result 37980 states and 58777 transitions. [2022-11-23 14:53:44,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:53:44,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 243 [2022-11-23 14:53:44,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:53:44,578 INFO L225 Difference]: With dead ends: 37980 [2022-11-23 14:53:44,578 INFO L226 Difference]: Without dead ends: 25094 [2022-11-23 14:53:44,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:53:44,656 INFO L413 NwaCegarLoop]: 6123 mSDtfsCounter, 4798 mSDsluCounter, 4958 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4804 SdHoareTripleChecker+Valid, 11081 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:53:44,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4804 Valid, 11081 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 694 Invalid, 4 Unknown, 0 Unchecked, 19.8s Time] [2022-11-23 14:53:44,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25094 states. [2022-11-23 14:53:47,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25094 to 25087. [2022-11-23 14:53:47,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25087 states, 15612 states have (on average 1.3804125032026646) internal successors, (21551), 16136 states have internal predecessors, (21551), 8631 states have call successors, (8631), 851 states have call predecessors, (8631), 843 states have return successors, (8646), 8371 states have call predecessors, (8646), 8630 states have call successors, (8646) [2022-11-23 14:53:47,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25087 states to 25087 states and 38828 transitions. [2022-11-23 14:53:47,498 INFO L78 Accepts]: Start accepts. Automaton has 25087 states and 38828 transitions. Word has length 243 [2022-11-23 14:53:47,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:53:47,500 INFO L495 AbstractCegarLoop]: Abstraction has 25087 states and 38828 transitions. [2022-11-23 14:53:47,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-11-23 14:53:47,501 INFO L276 IsEmpty]: Start isEmpty. Operand 25087 states and 38828 transitions. [2022-11-23 14:53:47,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-11-23 14:53:47,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:53:47,534 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:53:47,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:53:47,534 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:53:47,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:53:47,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1818584409, now seen corresponding path program 1 times [2022-11-23 14:53:47,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:53:47,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246117903] [2022-11-23 14:53:47,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:53:47,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:53:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:53:51,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1670 trivial. 0 not checked. [2022-11-23 14:53:51,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:53:51,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246117903] [2022-11-23 14:53:51,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246117903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:53:51,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:53:51,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:53:51,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304548340] [2022-11-23 14:53:51,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:53:51,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:53:51,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:53:51,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:53:51,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:53:51,207 INFO L87 Difference]: Start difference. First operand 25087 states and 38828 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (43), 3 states have call predecessors, (43), 1 states have call successors, (43) [2022-11-23 14:53:52,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:54,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:56,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:53:58,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:04,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:08,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:12,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:14,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:17,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:19,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:54:19,698 INFO L93 Difference]: Finished difference Result 50127 states and 77614 transitions. [2022-11-23 14:54:19,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:54:19,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (43), 3 states have call predecessors, (43), 1 states have call successors, (43) Word has length 279 [2022-11-23 14:54:19,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:54:19,847 INFO L225 Difference]: With dead ends: 50127 [2022-11-23 14:54:19,847 INFO L226 Difference]: Without dead ends: 25117 [2022-11-23 14:54:20,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:54:20,039 INFO L413 NwaCegarLoop]: 5071 mSDtfsCounter, 2 mSDsluCounter, 15181 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 20252 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:54:20,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 20252 Invalid, 1407 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1399 Invalid, 7 Unknown, 0 Unchecked, 27.7s Time] [2022-11-23 14:54:20,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25117 states. [2022-11-23 14:54:22,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25117 to 25107. [2022-11-23 14:54:22,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25107 states, 15626 states have (on average 1.3800716754127735) internal successors, (21565), 16152 states have internal predecessors, (21565), 8631 states have call successors, (8631), 851 states have call predecessors, (8631), 849 states have return successors, (8664), 8375 states have call predecessors, (8664), 8630 states have call successors, (8664) [2022-11-23 14:54:22,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25107 states to 25107 states and 38860 transitions. [2022-11-23 14:54:22,563 INFO L78 Accepts]: Start accepts. Automaton has 25107 states and 38860 transitions. Word has length 279 [2022-11-23 14:54:22,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:54:22,564 INFO L495 AbstractCegarLoop]: Abstraction has 25107 states and 38860 transitions. [2022-11-23 14:54:22,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (43), 3 states have call predecessors, (43), 1 states have call successors, (43) [2022-11-23 14:54:22,564 INFO L276 IsEmpty]: Start isEmpty. Operand 25107 states and 38860 transitions. [2022-11-23 14:54:22,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-11-23 14:54:22,597 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:54:22,597 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 26, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:54:22,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:54:22,598 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:54:22,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:54:22,599 INFO L85 PathProgramCache]: Analyzing trace with hash 918318163, now seen corresponding path program 1 times [2022-11-23 14:54:22,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:54:22,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153606203] [2022-11-23 14:54:22,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:22,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:54:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:54:25,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 1702 trivial. 0 not checked. [2022-11-23 14:54:25,849 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:54:25,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153606203] [2022-11-23 14:54:25,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153606203] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:54:25,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607096421] [2022-11-23 14:54:25,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:25,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:54:25,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:54:25,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:54:25,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:54:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:54:30,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 14118 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 14:54:30,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:54:30,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 640 proven. 0 refuted. 0 times theorem prover too weak. 1090 trivial. 0 not checked. [2022-11-23 14:54:30,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:54:30,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607096421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:54:30,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:54:30,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-23 14:54:30,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565724168] [2022-11-23 14:54:30,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:54:30,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:54:30,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:54:30,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:54:30,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:54:30,806 INFO L87 Difference]: Start difference. First operand 25107 states and 38860 transitions. Second operand has 4 states, 3 states have (on average 30.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-23 14:54:33,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:38,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:42,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:46,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:48,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:52,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:54:53,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:54:53,407 INFO L93 Difference]: Finished difference Result 50182 states and 77781 transitions. [2022-11-23 14:54:53,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:54:53,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 30.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 283 [2022-11-23 14:54:53,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:54:53,583 INFO L225 Difference]: With dead ends: 50182 [2022-11-23 14:54:53,584 INFO L226 Difference]: Without dead ends: 25115 [2022-11-23 14:54:53,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:54:53,726 INFO L413 NwaCegarLoop]: 5072 mSDtfsCounter, 1 mSDsluCounter, 10123 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 19 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 15195 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:54:53,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 15195 Invalid, 1067 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1042 Invalid, 6 Unknown, 0 Unchecked, 21.6s Time] [2022-11-23 14:54:53,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25115 states. [2022-11-23 14:54:55,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25115 to 25115. [2022-11-23 14:54:55,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25115 states, 15634 states have (on average 1.3798771907381349) internal successors, (21573), 16160 states have internal predecessors, (21573), 8631 states have call successors, (8631), 851 states have call predecessors, (8631), 849 states have return successors, (8664), 8375 states have call predecessors, (8664), 8630 states have call successors, (8664) [2022-11-23 14:54:55,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25115 states to 25115 states and 38868 transitions. [2022-11-23 14:54:55,997 INFO L78 Accepts]: Start accepts. Automaton has 25115 states and 38868 transitions. Word has length 283 [2022-11-23 14:54:56,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:54:56,002 INFO L495 AbstractCegarLoop]: Abstraction has 25115 states and 38868 transitions. [2022-11-23 14:54:56,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 30.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-23 14:54:56,003 INFO L276 IsEmpty]: Start isEmpty. Operand 25115 states and 38868 transitions. [2022-11-23 14:54:56,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-11-23 14:54:56,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:54:56,033 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 26, 15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:54:56,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:54:56,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:54:56,259 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:54:56,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:54:56,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1340451504, now seen corresponding path program 1 times [2022-11-23 14:54:56,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:54:56,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088198565] [2022-11-23 14:54:56,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:56,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:54:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:55:00,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2060 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1989 trivial. 0 not checked. [2022-11-23 14:55:00,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:55:00,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088198565] [2022-11-23 14:55:00,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088198565] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:55:00,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255656699] [2022-11-23 14:55:00,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:55:00,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:55:00,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:55:00,723 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:55:00,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa5d93c-10c5-4806-b4ad-c521e27ccb39/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:55:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:55:05,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 14343 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 14:55:05,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:55:05,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2060 backedges. 644 proven. 1 refuted. 0 times theorem prover too weak. 1415 trivial. 0 not checked. [2022-11-23 14:55:05,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:55:05,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2060 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1989 trivial. 0 not checked. [2022-11-23 14:55:05,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255656699] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:55:05,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1575086779] [2022-11-23 14:55:05,981 INFO L159 IcfgInterpreter]: Started Sifa with 130 locations of interest [2022-11-23 14:55:05,982 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:55:05,986 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:55:05,992 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:55:05,993 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:58:11,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1012 treesize of output 807 [2022-11-23 14:58:37,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:58:37,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:58:37,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:58:37,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:58:37,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:58:37,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:58:37,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:58:37,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1012 treesize of output 807 [2022-11-23 14:59:12,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:59:22,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:59:28,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:59:32,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:59:40,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:59:41,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:59:43,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:59:45,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:59:47,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:59:50,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:59:50,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:59:50,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:59:50,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:59:50,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:59:50,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:59:57,799 INFO L217 Elim1Store]: Index analysis took 49419 ms