./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 983ce5e5a67d7f1a953a7dc1806bc74e6e7b7100ad78daf1e74f2f1bd8e39c48 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:44:44,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:44:44,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:44:44,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:44:44,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:44:44,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:44:44,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:44:44,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:44:44,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:44:44,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:44:44,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:44:44,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:44:44,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:44:44,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:44:44,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:44:44,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:44:44,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:44:44,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:44:44,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:44:44,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:44:44,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:44:44,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:44:44,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:44:44,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:44:44,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:44:44,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:44:44,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:44:44,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:44:44,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:44:44,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:44:44,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:44:44,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:44:44,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:44:44,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:44:44,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:44:44,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:44:44,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:44:44,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:44:44,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:44:44,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:44:44,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:44:44,805 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 19:44:44,822 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:44:44,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:44:44,823 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:44:44,823 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:44:44,823 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:44:44,824 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:44:44,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:44:44,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:44:44,824 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:44:44,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:44:44,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:44:44,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:44:44,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 19:44:44,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:44:44,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 19:44:44,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:44:44,825 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:44:44,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 19:44:44,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:44:44,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:44:44,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:44:44,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:44:44,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:44:44,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:44:44,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 19:44:44,826 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:44:44,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 19:44:44,827 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 19:44:44,827 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 19:44:44,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 19:44:44,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:44:44,827 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_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 983ce5e5a67d7f1a953a7dc1806bc74e6e7b7100ad78daf1e74f2f1bd8e39c48 [2021-12-06 19:44:45,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:44:45,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:44:45,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:44:45,033 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:44:45,033 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:44:45,034 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i [2021-12-06 19:44:45,084 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/data/8b337786b/9eafab1c69c64e47a2df0a2fe8a7a8ed/FLAGdc89c4e95 [2021-12-06 19:44:45,734 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:44:45,734 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i [2021-12-06 19:44:45,757 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/data/8b337786b/9eafab1c69c64e47a2df0a2fe8a7a8ed/FLAGdc89c4e95 [2021-12-06 19:44:46,056 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/data/8b337786b/9eafab1c69c64e47a2df0a2fe8a7a8ed [2021-12-06 19:44:46,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:44:46,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:44:46,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:44:46,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:44:46,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:44:46,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:44:46" (1/1) ... [2021-12-06 19:44:46,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20adf246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:44:46, skipping insertion in model container [2021-12-06 19:44:46,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:44:46" (1/1) ... [2021-12-06 19:44:46,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:44:46,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:44:47,234 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i[239406,239419] [2021-12-06 19:44:47,275 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:44:47,310 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:44:47,481 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i[239406,239419] [2021-12-06 19:44:47,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:44:47,577 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:44:47,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:44:47 WrapperNode [2021-12-06 19:44:47,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:44:47,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:44:47,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:44:47,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:44:47,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:44:47" (1/1) ... [2021-12-06 19:44:47,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:44:47" (1/1) ... [2021-12-06 19:44:47,689 INFO L137 Inliner]: procedures = 176, calls = 1181, calls flagged for inlining = 84, calls inlined = 81, statements flattened = 2539 [2021-12-06 19:44:47,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:44:47,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:44:47,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:44:47,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:44:47,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:44:47" (1/1) ... [2021-12-06 19:44:47,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:44:47" (1/1) ... [2021-12-06 19:44:47,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:44:47" (1/1) ... [2021-12-06 19:44:47,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:44:47" (1/1) ... [2021-12-06 19:44:47,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:44:47" (1/1) ... [2021-12-06 19:44:47,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:44:47" (1/1) ... [2021-12-06 19:44:47,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:44:47" (1/1) ... [2021-12-06 19:44:47,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:44:47,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:44:47,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:44:47,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:44:47,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:44:47" (1/1) ... [2021-12-06 19:44:47,802 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:44:47,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:44:47,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:44:47,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:44:47,853 INFO L130 BoogieDeclarations]: Found specification of procedure el3_config [2021-12-06 19:44:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_config [2021-12-06 19:44:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 19:44:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 19:44:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 19:44:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-06 19:44:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-06 19:44:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-06 19:44:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-06 19:44:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-12-06 19:44:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-12-06 19:44:47,854 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-06 19:44:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-06 19:44:47,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-06 19:44:47,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-06 19:44:47,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 19:44:47,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 19:44:47,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-06 19:44:47,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-06 19:44:47,855 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-12-06 19:44:47,855 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-12-06 19:44:47,855 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 19:44:47,855 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 19:44:47,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 19:44:47,855 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-12-06 19:44:47,855 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-12-06 19:44:47,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 19:44:47,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 19:44:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 19:44:47,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 19:44:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-06 19:44:47,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-06 19:44:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 19:44:47,856 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 19:44:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-06 19:44:47,856 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-06 19:44:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 19:44:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_reset [2021-12-06 19:44:47,856 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_reset [2021-12-06 19:44:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:44:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-12-06 19:44:47,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-12-06 19:44:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_dev_present [2021-12-06 19:44:47,857 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_dev_present [2021-12-06 19:44:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 19:44:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 19:44:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-12-06 19:44:47,857 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-12-06 19:44:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure el3_rx [2021-12-06 19:44:47,857 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_rx [2021-12-06 19:44:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-12-06 19:44:47,857 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-12-06 19:44:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 19:44:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-06 19:44:47,858 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-06 19:44:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-06 19:44:47,858 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-06 19:44:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_set_xcvr [2021-12-06 19:44:47,858 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_set_xcvr [2021-12-06 19:44:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_release [2021-12-06 19:44:47,858 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_release [2021-12-06 19:44:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2021-12-06 19:44:47,858 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2021-12-06 19:44:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-06 19:44:47,858 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-06 19:44:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-06 19:44:47,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-06 19:44:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure el3_get_stats [2021-12-06 19:44:47,859 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_get_stats [2021-12-06 19:44:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-06 19:44:47,859 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-06 19:44:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_detach [2021-12-06 19:44:47,859 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_detach [2021-12-06 19:44:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_wait_for_completion [2021-12-06 19:44:47,859 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_wait_for_completion [2021-12-06 19:44:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 19:44:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 19:44:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2021-12-06 19:44:47,859 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2021-12-06 19:44:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-06 19:44:47,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-06 19:44:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-06 19:44:47,860 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-06 19:44:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-06 19:44:47,860 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-06 19:44:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-06 19:44:47,860 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-06 19:44:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-06 19:44:47,860 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-06 19:44:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-06 19:44:47,860 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-06 19:44:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-06 19:44:47,860 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-06 19:44:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure pop_tx_status [2021-12-06 19:44:47,860 INFO L138 BoogieDeclarations]: Found implementation of procedure pop_tx_status [2021-12-06 19:44:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:44:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-12-06 19:44:47,861 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-12-06 19:44:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:44:47,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:44:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure el3_tx_timeout [2021-12-06 19:44:47,861 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_tx_timeout [2021-12-06 19:44:48,155 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:44:48,157 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:44:48,500 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 19:44:53,772 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:44:53,787 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:44:53,787 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 19:44:53,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:44:53 BoogieIcfgContainer [2021-12-06 19:44:53,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:44:53,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:44:53,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:44:53,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:44:53,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:44:46" (1/3) ... [2021-12-06 19:44:53,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33186a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:44:53, skipping insertion in model container [2021-12-06 19:44:53,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:44:47" (2/3) ... [2021-12-06 19:44:53,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33186a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:44:53, skipping insertion in model container [2021-12-06 19:44:53,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:44:53" (3/3) ... [2021-12-06 19:44:53,797 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i [2021-12-06 19:44:53,802 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:44:53,802 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 19:44:53,845 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:44:53,850 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 19:44:53,850 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 19:44:53,891 INFO L276 IsEmpty]: Start isEmpty. Operand has 876 states, 593 states have (on average 1.3709949409780775) internal successors, (813), 631 states have internal predecessors, (813), 237 states have call successors, (237), 45 states have call predecessors, (237), 44 states have return successors, (231), 222 states have call predecessors, (231), 231 states have call successors, (231) [2021-12-06 19:44:53,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-12-06 19:44:53,925 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:44:53,926 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:44:53,927 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:44:53,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:44:53,932 INFO L85 PathProgramCache]: Analyzing trace with hash -877321201, now seen corresponding path program 1 times [2021-12-06 19:44:53,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:44:53,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487884915] [2021-12-06 19:44:53,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:44:53,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:44:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:54,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:44:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:54,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:44:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:44:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:44:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:44:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:44:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:44:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:44:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:44:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:44:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:44:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:44:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:44:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:44:55,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:44:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 19:44:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 19:44:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 19:44:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 19:44:55,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-06 19:44:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 19:44:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 19:44:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 19:44:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-06 19:44:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-06 19:44:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-06 19:44:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-06 19:44:55,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-06 19:44:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-06 19:44:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:44:55,241 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-12-06 19:44:55,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:44:55,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487884915] [2021-12-06 19:44:55,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487884915] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:44:55,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:44:55,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:44:55,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553177648] [2021-12-06 19:44:55,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:44:55,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:44:55,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:44:55,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:44:55,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:44:55,272 INFO L87 Difference]: Start difference. First operand has 876 states, 593 states have (on average 1.3709949409780775) internal successors, (813), 631 states have internal predecessors, (813), 237 states have call successors, (237), 45 states have call predecessors, (237), 44 states have return successors, (231), 222 states have call predecessors, (231), 231 states have call successors, (231) Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 19:44:57,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:44:59,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:45:01,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:45:02,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:45:02,437 INFO L93 Difference]: Finished difference Result 1831 states and 2724 transitions. [2021-12-06 19:45:02,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:45:02,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 206 [2021-12-06 19:45:02,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:45:02,457 INFO L225 Difference]: With dead ends: 1831 [2021-12-06 19:45:02,457 INFO L226 Difference]: Without dead ends: 941 [2021-12-06 19:45:02,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:45:02,468 INFO L933 BasicCegarLoop]: 1126 mSDtfsCounter, 786 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 971 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 1675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 971 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:45:02,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [851 Valid, 2107 Invalid, 1675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [971 Valid, 702 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2021-12-06 19:45:02,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2021-12-06 19:45:02,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 857. [2021-12-06 19:45:02,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 582 states have (on average 1.3556701030927836) internal successors, (789), 612 states have internal predecessors, (789), 231 states have call successors, (231), 44 states have call predecessors, (231), 43 states have return successors, (230), 221 states have call predecessors, (230), 230 states have call successors, (230) [2021-12-06 19:45:02,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1250 transitions. [2021-12-06 19:45:02,566 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1250 transitions. Word has length 206 [2021-12-06 19:45:02,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:45:02,566 INFO L470 AbstractCegarLoop]: Abstraction has 857 states and 1250 transitions. [2021-12-06 19:45:02,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 19:45:02,567 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1250 transitions. [2021-12-06 19:45:02,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-12-06 19:45:02,574 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:45:02,574 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:45:02,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 19:45:02,575 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:45:02,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:45:02,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1110743290, now seen corresponding path program 1 times [2021-12-06 19:45:02,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:45:02,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116449246] [2021-12-06 19:45:02,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:45:02,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:45:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:45:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:45:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:03,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:03,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:45:03,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:45:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:45:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 19:45:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-06 19:45:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-06 19:45:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-06 19:45:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 19:45:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-06 19:45:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-06 19:45:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 19:45:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 19:45:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 19:45:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-06 19:45:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-06 19:45:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-06 19:45:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-06 19:45:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:03,544 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-12-06 19:45:03,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:45:03,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116449246] [2021-12-06 19:45:03,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116449246] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:45:03,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:45:03,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:45:03,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633701376] [2021-12-06 19:45:03,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:45:03,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 19:45:03,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:45:03,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 19:45:03,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:45:03,549 INFO L87 Difference]: Start difference. First operand 857 states and 1250 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 19:45:05,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:45:07,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:45:09,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:45:11,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:45:16,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:45:16,191 INFO L93 Difference]: Finished difference Result 4544 states and 6717 transitions. [2021-12-06 19:45:16,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-06 19:45:16,192 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 200 [2021-12-06 19:45:16,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:45:16,213 INFO L225 Difference]: With dead ends: 4544 [2021-12-06 19:45:16,213 INFO L226 Difference]: Without dead ends: 3704 [2021-12-06 19:45:16,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2021-12-06 19:45:16,218 INFO L933 BasicCegarLoop]: 1470 mSDtfsCounter, 5477 mSDsluCounter, 3428 mSDsCounter, 0 mSdLazyCounter, 4294 mSolverCounterSat, 4104 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5929 SdHoareTripleChecker+Valid, 4898 SdHoareTripleChecker+Invalid, 8401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4104 IncrementalHoareTripleChecker+Valid, 4294 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:45:16,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5929 Valid, 4898 Invalid, 8401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4104 Valid, 4294 Invalid, 3 Unknown, 0 Unchecked, 12.2s Time] [2021-12-06 19:45:16,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2021-12-06 19:45:16,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 3364. [2021-12-06 19:45:16,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3364 states, 2287 states have (on average 1.3563620463489288) internal successors, (3102), 2405 states have internal predecessors, (3102), 903 states have call successors, (903), 173 states have call predecessors, (903), 173 states have return successors, (910), 869 states have call predecessors, (910), 902 states have call successors, (910) [2021-12-06 19:45:16,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3364 states to 3364 states and 4915 transitions. [2021-12-06 19:45:16,465 INFO L78 Accepts]: Start accepts. Automaton has 3364 states and 4915 transitions. Word has length 200 [2021-12-06 19:45:16,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:45:16,466 INFO L470 AbstractCegarLoop]: Abstraction has 3364 states and 4915 transitions. [2021-12-06 19:45:16,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 19:45:16,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3364 states and 4915 transitions. [2021-12-06 19:45:16,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-12-06 19:45:16,472 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:45:16,473 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:45:16,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 19:45:16,473 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:45:16,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:45:16,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1805737481, now seen corresponding path program 1 times [2021-12-06 19:45:16,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:45:16,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041306943] [2021-12-06 19:45:16,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:45:16,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:45:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:45:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:45:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:45:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:45:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:45:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:17,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 19:45:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 19:45:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-06 19:45:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-06 19:45:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-06 19:45:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:45:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-06 19:45:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-06 19:45:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-06 19:45:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-06 19:45:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 19:45:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-06 19:45:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-06 19:45:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-06 19:45:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:17,224 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-12-06 19:45:17,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:45:17,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041306943] [2021-12-06 19:45:17,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041306943] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:45:17,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:45:17,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:45:17,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408320886] [2021-12-06 19:45:17,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:45:17,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 19:45:17,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:45:17,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 19:45:17,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:45:17,226 INFO L87 Difference]: Start difference. First operand 3364 states and 4915 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 19:45:19,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:45:21,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:45:23,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:45:25,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:45:30,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:45:30,585 INFO L93 Difference]: Finished difference Result 18042 states and 26677 transitions. [2021-12-06 19:45:30,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-06 19:45:30,586 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 199 [2021-12-06 19:45:30,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:45:30,666 INFO L225 Difference]: With dead ends: 18042 [2021-12-06 19:45:30,666 INFO L226 Difference]: Without dead ends: 14695 [2021-12-06 19:45:30,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2021-12-06 19:45:30,682 INFO L933 BasicCegarLoop]: 1470 mSDtfsCounter, 5805 mSDsluCounter, 3361 mSDsCounter, 0 mSdLazyCounter, 4803 mSolverCounterSat, 4096 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6257 SdHoareTripleChecker+Valid, 4831 SdHoareTripleChecker+Invalid, 8903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4096 IncrementalHoareTripleChecker+Valid, 4803 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:45:30,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6257 Valid, 4831 Invalid, 8903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4096 Valid, 4803 Invalid, 4 Unknown, 0 Unchecked, 12.8s Time] [2021-12-06 19:45:30,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14695 states. [2021-12-06 19:45:31,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14695 to 13368. [2021-12-06 19:45:31,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13368 states, 9094 states have (on average 1.35385968770618) internal successors, (12312), 9553 states have internal predecessors, (12312), 3582 states have call successors, (3582), 689 states have call predecessors, (3582), 691 states have return successors, (3623), 3461 states have call predecessors, (3623), 3581 states have call successors, (3623) [2021-12-06 19:45:31,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13368 states to 13368 states and 19517 transitions. [2021-12-06 19:45:31,355 INFO L78 Accepts]: Start accepts. Automaton has 13368 states and 19517 transitions. Word has length 199 [2021-12-06 19:45:31,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:45:31,355 INFO L470 AbstractCegarLoop]: Abstraction has 13368 states and 19517 transitions. [2021-12-06 19:45:31,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 19:45:31,356 INFO L276 IsEmpty]: Start isEmpty. Operand 13368 states and 19517 transitions. [2021-12-06 19:45:31,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-12-06 19:45:31,363 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:45:31,363 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:45:31,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 19:45:31,363 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:45:31,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:45:31,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1821254840, now seen corresponding path program 1 times [2021-12-06 19:45:31,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:45:31,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655016469] [2021-12-06 19:45:31,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:45:31,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:45:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:31,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:45:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:31,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:31,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:31,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:45:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:31,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:31,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:31,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:45:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:31,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:31,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:31,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:45:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:31,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:31,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:31,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:45:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:31,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:31,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:32,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 19:45:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:32,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 19:45:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:32,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 19:45:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:32,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:45:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:32,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-06 19:45:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:32,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-06 19:45:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:32,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-06 19:45:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:32,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-06 19:45:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:32,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 19:45:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:32,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-06 19:45:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:32,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-06 19:45:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:32,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-06 19:45:32,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:32,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-06 19:45:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:32,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-06 19:45:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:32,102 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-12-06 19:45:32,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:45:32,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655016469] [2021-12-06 19:45:32,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655016469] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:45:32,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:45:32,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:45:32,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772087964] [2021-12-06 19:45:32,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:45:32,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 19:45:32,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:45:32,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 19:45:32,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:45:32,104 INFO L87 Difference]: Start difference. First operand 13368 states and 19517 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 19:45:34,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:45:36,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:45:38,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:45:40,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:45:45,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:45:48,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:45:48,669 INFO L93 Difference]: Finished difference Result 71836 states and 106067 transitions. [2021-12-06 19:45:48,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-06 19:45:48,670 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 203 [2021-12-06 19:45:48,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:45:48,980 INFO L225 Difference]: With dead ends: 71836 [2021-12-06 19:45:48,980 INFO L226 Difference]: Without dead ends: 58485 [2021-12-06 19:45:49,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2021-12-06 19:45:49,030 INFO L933 BasicCegarLoop]: 1473 mSDtfsCounter, 4696 mSDsluCounter, 3898 mSDsCounter, 0 mSdLazyCounter, 5037 mSolverCounterSat, 3840 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5148 SdHoareTripleChecker+Valid, 5371 SdHoareTripleChecker+Invalid, 8882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3840 IncrementalHoareTripleChecker+Valid, 5037 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:45:49,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5148 Valid, 5371 Invalid, 8882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3840 Valid, 5037 Invalid, 5 Unknown, 0 Unchecked, 15.3s Time] [2021-12-06 19:45:49,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58485 states. [2021-12-06 19:45:51,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58485 to 53162. [2021-12-06 19:45:51,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53162 states, 36214 states have (on average 1.351134920196609) internal successors, (48930), 37939 states have internal predecessors, (48930), 14230 states have call successors, (14230), 2737 states have call predecessors, (14230), 2717 states have return successors, (14327), 13745 states have call predecessors, (14327), 14229 states have call successors, (14327) [2021-12-06 19:45:51,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53162 states to 53162 states and 77487 transitions. [2021-12-06 19:45:51,410 INFO L78 Accepts]: Start accepts. Automaton has 53162 states and 77487 transitions. Word has length 203 [2021-12-06 19:45:51,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:45:51,410 INFO L470 AbstractCegarLoop]: Abstraction has 53162 states and 77487 transitions. [2021-12-06 19:45:51,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 19:45:51,411 INFO L276 IsEmpty]: Start isEmpty. Operand 53162 states and 77487 transitions. [2021-12-06 19:45:51,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-06 19:45:51,416 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:45:51,416 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:45:51,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 19:45:51,416 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:45:51,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:45:51,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1957206687, now seen corresponding path program 1 times [2021-12-06 19:45:51,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:45:51,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391629244] [2021-12-06 19:45:51,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:45:51,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:45:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:45:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:45:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:45:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:45:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:45:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:45:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:45:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 19:45:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 19:45:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 19:45:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 19:45:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-06 19:45:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 19:45:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 19:45:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 19:45:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-06 19:45:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-06 19:45:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-06 19:45:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-06 19:45:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-06 19:45:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-06 19:45:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:45:52,217 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-12-06 19:45:52,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:45:52,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391629244] [2021-12-06 19:45:52,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391629244] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:45:52,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:45:52,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:45:52,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69418364] [2021-12-06 19:45:52,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:45:52,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 19:45:52,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:45:52,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 19:45:52,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:45:52,219 INFO L87 Difference]: Start difference. First operand 53162 states and 77487 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 19:45:54,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:45:56,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:45:58,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:46:00,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:46:03,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:46:11,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:46:11,260 INFO L93 Difference]: Finished difference Result 265290 states and 389005 transitions. [2021-12-06 19:46:11,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-06 19:46:11,261 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 201 [2021-12-06 19:46:11,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:46:12,048 INFO L225 Difference]: With dead ends: 265290 [2021-12-06 19:46:12,048 INFO L226 Difference]: Without dead ends: 212145 [2021-12-06 19:46:12,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2021-12-06 19:46:12,224 INFO L933 BasicCegarLoop]: 1464 mSDtfsCounter, 5485 mSDsluCounter, 3419 mSDsCounter, 0 mSdLazyCounter, 4289 mSolverCounterSat, 4109 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5937 SdHoareTripleChecker+Valid, 4883 SdHoareTripleChecker+Invalid, 8403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4109 IncrementalHoareTripleChecker+Valid, 4289 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:46:12,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5937 Valid, 4883 Invalid, 8403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4109 Valid, 4289 Invalid, 5 Unknown, 0 Unchecked, 14.4s Time] [2021-12-06 19:46:12,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212145 states. [2021-12-06 19:46:18,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212145 to 195348. [2021-12-06 19:46:18,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195348 states, 133373 states have (on average 1.3458271164328612) internal successors, (179497), 138851 states have internal predecessors, (179497), 51688 states have call successors, (51688), 10378 states have call predecessors, (51688), 10286 states have return successors, (52097), 50101 states have call predecessors, (52097), 51687 states have call successors, (52097) [2021-12-06 19:46:19,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195348 states to 195348 states and 283282 transitions. [2021-12-06 19:46:19,507 INFO L78 Accepts]: Start accepts. Automaton has 195348 states and 283282 transitions. Word has length 201 [2021-12-06 19:46:19,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:46:19,507 INFO L470 AbstractCegarLoop]: Abstraction has 195348 states and 283282 transitions. [2021-12-06 19:46:19,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 19:46:19,508 INFO L276 IsEmpty]: Start isEmpty. Operand 195348 states and 283282 transitions. [2021-12-06 19:46:19,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2021-12-06 19:46:19,624 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:46:19,625 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:46:19,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 19:46:19,625 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:46:19,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:46:19,625 INFO L85 PathProgramCache]: Analyzing trace with hash 398450710, now seen corresponding path program 1 times [2021-12-06 19:46:19,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:46:19,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000915790] [2021-12-06 19:46:19,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:46:19,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:46:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:46:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:46:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:46:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:46:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:46:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:46:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:46:20,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:46:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:46:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:46:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:46:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:46:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:46:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:46:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:46:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 19:46:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 19:46:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:46:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-06 19:46:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-06 19:46:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:46:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-06 19:46:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:46:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 19:46:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:46:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:46:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:46:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 19:46:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:46:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 19:46:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 19:46:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:46:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 19:46:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-06 19:46:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-06 19:46:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-06 19:46:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 19:46:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 19:46:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:46:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 19:46:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 19:46:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 19:46:20,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-06 19:46:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 19:46:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-06 19:46:20,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-06 19:46:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-06 19:46:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-06 19:46:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-06 19:46:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-06 19:46:20,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-12-06 19:46:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-12-06 19:46:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-12-06 19:46:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-06 19:46:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-12-06 19:46:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-06 19:46:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-12-06 19:46:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-06 19:46:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2021-12-06 19:46:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-06 19:46:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:46:20,532 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2021-12-06 19:46:20,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:46:20,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000915790] [2021-12-06 19:46:20,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000915790] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:46:20,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:46:20,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:46:20,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833009736] [2021-12-06 19:46:20,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:46:20,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:46:20,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:46:20,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:46:20,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:46:20,535 INFO L87 Difference]: Start difference. First operand 195348 states and 283282 transitions. Second operand has 9 states, 9 states have (on average 17.0) internal successors, (153), 4 states have internal predecessors, (153), 2 states have call successors, (56), 7 states have call predecessors, (56), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-12-06 19:46:22,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:46:24,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:46:26,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:46:28,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:46:30,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:46:33,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:46:35,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:46:46,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:46:46,762 INFO L93 Difference]: Finished difference Result 552655 states and 807312 transitions. [2021-12-06 19:46:46,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-06 19:46:46,763 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.0) internal successors, (153), 4 states have internal predecessors, (153), 2 states have call successors, (56), 7 states have call predecessors, (56), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 376 [2021-12-06 19:46:46,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:46:48,131 INFO L225 Difference]: With dead ends: 552655 [2021-12-06 19:46:48,131 INFO L226 Difference]: Without dead ends: 357324 [2021-12-06 19:46:48,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=145, Invalid=361, Unknown=0, NotChecked=0, Total=506 [2021-12-06 19:46:48,589 INFO L933 BasicCegarLoop]: 1412 mSDtfsCounter, 2090 mSDsluCounter, 3584 mSDsCounter, 0 mSdLazyCounter, 2721 mSolverCounterSat, 2211 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2208 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 4938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2211 IncrementalHoareTripleChecker+Valid, 2721 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:46:48,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2208 Valid, 4996 Invalid, 4938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2211 Valid, 2721 Invalid, 6 Unknown, 0 Unchecked, 17.0s Time] [2021-12-06 19:46:48,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357324 states. [2021-12-06 19:46:59,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357324 to 312765. [2021-12-06 19:47:00,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312765 states, 214764 states have (on average 1.342766944180589) internal successors, (288378), 224834 states have internal predecessors, (288378), 80737 states have call successors, (80737), 17611 states have call predecessors, (80737), 17263 states have return successors, (81146), 77008 states have call predecessors, (81146), 80736 states have call successors, (81146) [2021-12-06 19:47:01,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312765 states to 312765 states and 450261 transitions. [2021-12-06 19:47:01,406 INFO L78 Accepts]: Start accepts. Automaton has 312765 states and 450261 transitions. Word has length 376 [2021-12-06 19:47:01,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:47:01,406 INFO L470 AbstractCegarLoop]: Abstraction has 312765 states and 450261 transitions. [2021-12-06 19:47:01,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.0) internal successors, (153), 4 states have internal predecessors, (153), 2 states have call successors, (56), 7 states have call predecessors, (56), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-12-06 19:47:01,407 INFO L276 IsEmpty]: Start isEmpty. Operand 312765 states and 450261 transitions. [2021-12-06 19:47:01,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2021-12-06 19:47:01,503 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:47:01,504 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:47:01,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 19:47:01,504 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:47:01,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:47:01,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1461091284, now seen corresponding path program 1 times [2021-12-06 19:47:01,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:47:01,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735608562] [2021-12-06 19:47:01,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:47:01,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:47:01,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:47:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:47:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:47:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:47:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:47:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:47:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:47:02,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:47:02,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:47:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:47:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:47:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:47:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:47:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:47:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:47:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 19:47:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 19:47:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 19:47:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 19:47:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-06 19:47:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-06 19:47:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 19:47:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-06 19:47:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:47:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:47:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-06 19:47:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-06 19:47:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:47:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-06 19:47:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-06 19:47:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:47:02,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-06 19:47:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:47:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 19:47:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 19:47:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 19:47:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:47:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:47:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 19:47:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:47:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 19:47:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 19:47:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:47:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 19:47:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 19:47:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 19:47:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 19:47:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 19:47:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 19:47:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 19:47:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:47:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-06 19:47:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:47:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 19:47:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-06 19:47:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 19:47:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:47:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-06 19:47:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2021-12-06 19:47:02,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-12-06 19:47:02,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2021-12-06 19:47:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-12-06 19:47:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2021-12-06 19:47:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-12-06 19:47:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-12-06 19:47:02,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2021-12-06 19:47:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2021-12-06 19:47:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2021-12-06 19:47:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2021-12-06 19:47:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2021-12-06 19:47:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2021-12-06 19:47:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2021-12-06 19:47:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:47:02,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2021-12-06 19:47:02,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:47:02,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735608562] [2021-12-06 19:47:02,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735608562] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:47:02,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:47:02,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:47:02,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602748755] [2021-12-06 19:47:02,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:47:02,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:47:02,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:47:02,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:47:02,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:47:02,520 INFO L87 Difference]: Start difference. First operand 312765 states and 450261 transitions. Second operand has 9 states, 9 states have (on average 24.0) internal successors, (216), 3 states have internal predecessors, (216), 2 states have call successors, (66), 8 states have call predecessors, (66), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2021-12-06 19:47:04,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:47:06,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:47:08,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:47:10,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:47:12,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:47:32,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:47:32,766 INFO L93 Difference]: Finished difference Result 940377 states and 1372379 transitions. [2021-12-06 19:47:32,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 19:47:32,767 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 24.0) internal successors, (216), 3 states have internal predecessors, (216), 2 states have call successors, (66), 8 states have call predecessors, (66), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 488 [2021-12-06 19:47:32,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:47:35,261 INFO L225 Difference]: With dead ends: 940377 [2021-12-06 19:47:35,261 INFO L226 Difference]: Without dead ends: 627629 [2021-12-06 19:47:36,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2021-12-06 19:47:36,217 INFO L933 BasicCegarLoop]: 1632 mSDtfsCounter, 2331 mSDsluCounter, 3422 mSDsCounter, 0 mSdLazyCounter, 2657 mSolverCounterSat, 2442 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2492 SdHoareTripleChecker+Valid, 5054 SdHoareTripleChecker+Invalid, 5104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2442 IncrementalHoareTripleChecker+Valid, 2657 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:47:36,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2492 Valid, 5054 Invalid, 5104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2442 Valid, 2657 Invalid, 5 Unknown, 0 Unchecked, 13.1s Time] [2021-12-06 19:47:36,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627629 states. [2021-12-06 19:47:57,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627629 to 548404. [2021-12-06 19:47:57,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548404 states, 373305 states have (on average 1.344249340351723) internal successors, (501815), 392434 states have internal predecessors, (501815), 144451 states have call successors, (144451), 31086 states have call predecessors, (144451), 30647 states have return successors, (145270), 138180 states have call predecessors, (145270), 144450 states have call successors, (145270) [2021-12-06 19:48:00,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548404 states to 548404 states and 791536 transitions. [2021-12-06 19:48:00,479 INFO L78 Accepts]: Start accepts. Automaton has 548404 states and 791536 transitions. Word has length 488 [2021-12-06 19:48:00,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:00,480 INFO L470 AbstractCegarLoop]: Abstraction has 548404 states and 791536 transitions. [2021-12-06 19:48:00,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 24.0) internal successors, (216), 3 states have internal predecessors, (216), 2 states have call successors, (66), 8 states have call predecessors, (66), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2021-12-06 19:48:00,480 INFO L276 IsEmpty]: Start isEmpty. Operand 548404 states and 791536 transitions. [2021-12-06 19:48:00,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2021-12-06 19:48:00,769 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:00,769 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:00,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 19:48:00,770 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:00,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:00,770 INFO L85 PathProgramCache]: Analyzing trace with hash -780723764, now seen corresponding path program 1 times [2021-12-06 19:48:00,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:00,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849632172] [2021-12-06 19:48:00,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:00,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:48:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:48:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:48:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:01,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:48:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 19:48:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:01,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-06 19:48:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 19:48:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 19:48:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-06 19:48:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 19:48:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-06 19:48:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-06 19:48:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-06 19:48:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-06 19:48:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-06 19:48:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-06 19:48:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-06 19:48:01,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-06 19:48:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:48:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 19:48:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 19:48:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 19:48:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 19:48:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:48:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 19:48:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 19:48:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:48:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 19:48:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 19:48:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 19:48:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 19:48:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 19:48:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 19:48:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 19:48:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:48:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-06 19:48:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:48:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 19:48:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-06 19:48:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 19:48:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:48:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2021-12-06 19:48:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2021-12-06 19:48:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-12-06 19:48:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-12-06 19:48:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2021-12-06 19:48:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-12-06 19:48:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-12-06 19:48:01,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2021-12-06 19:48:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2021-12-06 19:48:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2021-12-06 19:48:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2021-12-06 19:48:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2021-12-06 19:48:01,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2021-12-06 19:48:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2021-12-06 19:48:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2021-12-06 19:48:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:01,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1139 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2021-12-06 19:48:01,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:01,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849632172] [2021-12-06 19:48:01,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849632172] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:48:01,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516792076] [2021-12-06 19:48:01,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:01,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:48:01,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:48:01,725 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:48:01,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 19:48:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:02,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 8217 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:48:03,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:48:03,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1139 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2021-12-06 19:48:03,348 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:48:03,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516792076] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:03,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:48:03,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2021-12-06 19:48:03,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136095581] [2021-12-06 19:48:03,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:03,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:48:03,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:03,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:48:03,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:48:03,350 INFO L87 Difference]: Start difference. First operand 548404 states and 791536 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2021-12-06 19:48:05,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:48:07,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:48:26,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:48:26,185 INFO L93 Difference]: Finished difference Result 1277769 states and 1869108 transitions. [2021-12-06 19:48:26,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:48:26,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 512 [2021-12-06 19:48:26,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:48:29,289 INFO L225 Difference]: With dead ends: 1277769 [2021-12-06 19:48:29,289 INFO L226 Difference]: Without dead ends: 729396 [2021-12-06 19:48:30,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 657 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:48:30,746 INFO L933 BasicCegarLoop]: 1566 mSDtfsCounter, 358 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 2847 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:48:30,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [435 Valid, 2847 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 2 Unknown, 0 Unchecked, 4.0s Time] [2021-12-06 19:48:31,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729396 states. [2021-12-06 19:48:52,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729396 to 548916. [2021-12-06 19:48:53,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548916 states, 373817 states have (on average 1.3437778378190397) internal successors, (502327), 392946 states have internal predecessors, (502327), 144451 states have call successors, (144451), 31086 states have call predecessors, (144451), 30647 states have return successors, (145270), 138180 states have call predecessors, (145270), 144450 states have call successors, (145270) [2021-12-06 19:48:55,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548916 states to 548916 states and 792048 transitions. [2021-12-06 19:48:55,900 INFO L78 Accepts]: Start accepts. Automaton has 548916 states and 792048 transitions. Word has length 512 [2021-12-06 19:48:55,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:48:55,901 INFO L470 AbstractCegarLoop]: Abstraction has 548916 states and 792048 transitions. [2021-12-06 19:48:55,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2021-12-06 19:48:55,901 INFO L276 IsEmpty]: Start isEmpty. Operand 548916 states and 792048 transitions. [2021-12-06 19:48:56,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2021-12-06 19:48:56,042 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:48:56,042 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:48:56,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 19:48:56,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:48:56,244 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:48:56,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:48:56,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1891769670, now seen corresponding path program 1 times [2021-12-06 19:48:56,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:48:56,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843546067] [2021-12-06 19:48:56,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:56,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:48:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:48:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:48:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:48:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:48:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:48:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 19:48:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:56,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:56,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-06 19:48:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 19:48:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 19:48:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-06 19:48:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-06 19:48:56,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-06 19:48:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 19:48:56,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-06 19:48:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:56,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-06 19:48:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-06 19:48:56,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-06 19:48:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:56,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-06 19:48:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-06 19:48:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:48:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 19:48:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 19:48:57,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 19:48:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:48:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:48:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 19:48:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:48:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 19:48:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 19:48:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:48:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 19:48:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 19:48:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 19:48:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 19:48:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 19:48:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 19:48:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 19:48:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:48:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-06 19:48:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:48:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 19:48:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-06 19:48:57,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 19:48:57,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:48:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-12-06 19:48:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2021-12-06 19:48:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-12-06 19:48:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2021-12-06 19:48:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2021-12-06 19:48:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2021-12-06 19:48:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2021-12-06 19:48:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2021-12-06 19:48:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2021-12-06 19:48:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2021-12-06 19:48:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2021-12-06 19:48:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2021-12-06 19:48:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2021-12-06 19:48:57,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2021-12-06 19:48:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2021-12-06 19:48:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:57,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2021-12-06 19:48:57,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:48:57,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843546067] [2021-12-06 19:48:57,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843546067] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:48:57,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496689131] [2021-12-06 19:48:57,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:48:57,322 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:48:57,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:48:57,323 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:48:57,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 19:48:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:48:58,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 8222 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:48:58,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:48:59,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2021-12-06 19:48:59,047 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:48:59,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496689131] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:48:59,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:48:59,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2021-12-06 19:48:59,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465677809] [2021-12-06 19:48:59,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:48:59,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:48:59,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:48:59,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:48:59,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:48:59,049 INFO L87 Difference]: Start difference. First operand 548916 states and 792048 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2021-12-06 19:49:01,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:49:02,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:49:22,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:49:22,709 INFO L93 Difference]: Finished difference Result 1267529 states and 1852980 transitions. [2021-12-06 19:49:22,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:49:22,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 515 [2021-12-06 19:49:22,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:49:25,801 INFO L225 Difference]: With dead ends: 1267529 [2021-12-06 19:49:25,801 INFO L226 Difference]: Without dead ends: 718644 [2021-12-06 19:49:27,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 660 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:49:27,333 INFO L933 BasicCegarLoop]: 1667 mSDtfsCounter, 331 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 2952 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:49:27,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 2952 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-12-06 19:49:27,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718644 states. [2021-12-06 19:49:49,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718644 to 549940. [2021-12-06 19:49:50,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549940 states, 374841 states have (on average 1.3428386969408364) internal successors, (503351), 393970 states have internal predecessors, (503351), 144451 states have call successors, (144451), 31086 states have call predecessors, (144451), 30647 states have return successors, (145270), 138180 states have call predecessors, (145270), 144450 states have call successors, (145270) [2021-12-06 19:49:52,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549940 states to 549940 states and 793072 transitions. [2021-12-06 19:49:52,879 INFO L78 Accepts]: Start accepts. Automaton has 549940 states and 793072 transitions. Word has length 515 [2021-12-06 19:49:52,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:49:52,880 INFO L470 AbstractCegarLoop]: Abstraction has 549940 states and 793072 transitions. [2021-12-06 19:49:52,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2021-12-06 19:49:52,880 INFO L276 IsEmpty]: Start isEmpty. Operand 549940 states and 793072 transitions. [2021-12-06 19:49:53,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2021-12-06 19:49:53,059 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:49:53,060 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:49:53,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 19:49:53,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:49:53,262 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:49:53,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:49:53,264 INFO L85 PathProgramCache]: Analyzing trace with hash 682003280, now seen corresponding path program 1 times [2021-12-06 19:49:53,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:49:53,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885797667] [2021-12-06 19:49:53,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:49:53,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:49:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:49:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:49:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:49:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:49:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:49:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:49:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:49:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:49:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:49:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:49:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:49:53,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:49:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:49:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:49:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:49:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 19:49:53,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:49:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:49:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-06 19:49:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 19:49:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 19:49:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-06 19:49:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-06 19:49:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-06 19:49:53,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-06 19:49:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-06 19:49:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 19:49:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:49:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:49:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-06 19:49:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-06 19:49:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:49:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-06 19:49:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-06 19:49:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:49:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-06 19:49:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:49:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 19:49:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 19:49:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 19:49:53,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:49:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:49:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 19:49:53,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:49:53,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 19:49:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 19:49:53,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:49:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 19:49:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:53,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 19:49:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 19:49:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 19:49:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 19:49:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 19:49:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 19:49:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:49:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-06 19:49:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:49:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 19:49:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-06 19:49:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 19:49:54,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:49:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2021-12-06 19:49:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2021-12-06 19:49:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-12-06 19:49:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2021-12-06 19:49:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2021-12-06 19:49:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2021-12-06 19:49:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2021-12-06 19:49:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2021-12-06 19:49:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2021-12-06 19:49:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2021-12-06 19:49:54,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2021-12-06 19:49:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2021-12-06 19:49:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2021-12-06 19:49:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2021-12-06 19:49:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2021-12-06 19:49:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:54,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 1129 trivial. 0 not checked. [2021-12-06 19:49:54,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:49:54,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885797667] [2021-12-06 19:49:54,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885797667] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:49:54,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367161309] [2021-12-06 19:49:54,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:49:54,206 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:49:54,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:49:54,206 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:49:54,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 19:49:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:49:55,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 8254 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:49:55,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:49:55,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 879 trivial. 0 not checked. [2021-12-06 19:49:55,941 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:49:55,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367161309] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:49:55,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:49:55,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2021-12-06 19:49:55,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134254620] [2021-12-06 19:49:55,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:49:55,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:49:55,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:49:55,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:49:55,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:49:55,943 INFO L87 Difference]: Start difference. First operand 549940 states and 793072 transitions. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 3 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2021-12-06 19:50:19,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:50:19,385 INFO L93 Difference]: Finished difference Result 1364241 states and 1966538 transitions. [2021-12-06 19:50:19,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:50:19,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 3 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) Word has length 522 [2021-12-06 19:50:19,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:50:22,940 INFO L225 Difference]: With dead ends: 1364241 [2021-12-06 19:50:22,941 INFO L226 Difference]: Without dead ends: 814332 [2021-12-06 19:50:24,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 680 GetRequests, 669 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:50:24,375 INFO L933 BasicCegarLoop]: 1493 mSDtfsCounter, 974 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:50:24,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [974 Valid, 2603 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:50:25,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814332 states. [2021-12-06 19:50:53,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814332 to 812025. [2021-12-06 19:50:54,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812025 states, 555973 states have (on average 1.3381063468909462) internal successors, (743951), 584030 states have internal predecessors, (743951), 208349 states have call successors, (208349), 48397 states have call predecessors, (208349), 47702 states have return successors, (209168), 198818 states have call predecessors, (209168), 208348 states have call successors, (209168) [2021-12-06 19:50:58,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812025 states to 812025 states and 1161468 transitions. [2021-12-06 19:50:58,209 INFO L78 Accepts]: Start accepts. Automaton has 812025 states and 1161468 transitions. Word has length 522 [2021-12-06 19:50:58,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:50:58,210 INFO L470 AbstractCegarLoop]: Abstraction has 812025 states and 1161468 transitions. [2021-12-06 19:50:58,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 3 states have call successors, (70), 3 states have call predecessors, (70), 3 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2021-12-06 19:50:58,210 INFO L276 IsEmpty]: Start isEmpty. Operand 812025 states and 1161468 transitions. [2021-12-06 19:50:58,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2021-12-06 19:50:58,613 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:50:58,614 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:50:58,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-06 19:50:58,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-06 19:50:58,816 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:50:58,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:50:58,817 INFO L85 PathProgramCache]: Analyzing trace with hash -845853698, now seen corresponding path program 1 times [2021-12-06 19:50:58,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:50:58,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358160301] [2021-12-06 19:50:58,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:50:58,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:50:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:50:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:50:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:50:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:50:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:50:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:50:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:50:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:50:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:50:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:50:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:50:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:50:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:50:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:50:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:50:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-06 19:50:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:50:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:50:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-06 19:50:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 19:50:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 19:50:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-06 19:50:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-06 19:50:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-06 19:50:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-06 19:50:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-06 19:50:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 19:50:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:50:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:50:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-06 19:50:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-06 19:50:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:50:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-06 19:50:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-06 19:50:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:50:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-06 19:50:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:50:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 19:50:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 19:50:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 19:50:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:50:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:50:59,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 19:50:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 19:50:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 19:50:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 19:50:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:50:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 19:50:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 19:50:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 19:50:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 19:50:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 19:50:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 19:50:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 19:50:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:50:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-06 19:50:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:50:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 19:50:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:50:59,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-06 19:50:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:00,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-06 19:51:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:00,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:51:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:00,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2021-12-06 19:51:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:00,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-12-06 19:51:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:00,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2021-12-06 19:51:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:00,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-12-06 19:51:00,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:00,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2021-12-06 19:51:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:00,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2021-12-06 19:51:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:00,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2021-12-06 19:51:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:00,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2021-12-06 19:51:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:00,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2021-12-06 19:51:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:00,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2021-12-06 19:51:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:00,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2021-12-06 19:51:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:00,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2021-12-06 19:51:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:00,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2021-12-06 19:51:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:00,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2021-12-06 19:51:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:00,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2021-12-06 19:51:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:00,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1157 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 1141 trivial. 0 not checked. [2021-12-06 19:51:00,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:51:00,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358160301] [2021-12-06 19:51:00,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358160301] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:51:00,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539568209] [2021-12-06 19:51:00,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:51:00,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:51:00,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:51:00,059 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:51:00,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b33dad-cb06-4a14-870a-92fdd9ad63b5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 19:51:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:51:01,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 8301 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:51:01,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:51:01,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1157 backedges. 418 proven. 0 refuted. 0 times theorem prover too weak. 739 trivial. 0 not checked. [2021-12-06 19:51:01,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:51:01,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539568209] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:51:01,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:51:01,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2021-12-06 19:51:01,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814197190] [2021-12-06 19:51:01,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:51:01,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:51:01,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:51:01,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:51:01,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:51:01,976 INFO L87 Difference]: Start difference. First operand 812025 states and 1161468 transitions. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 3 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64)