./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 11:41:24,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 11:41:24,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 11:41:24,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 11:41:24,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 11:41:24,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 11:41:24,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 11:41:24,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 11:41:24,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 11:41:24,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 11:41:24,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 11:41:24,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 11:41:24,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 11:41:24,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 11:41:24,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 11:41:24,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 11:41:24,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 11:41:24,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 11:41:24,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 11:41:24,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 11:41:24,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 11:41:24,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 11:41:24,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 11:41:24,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 11:41:24,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 11:41:24,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 11:41:24,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 11:41:24,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 11:41:24,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 11:41:24,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 11:41:24,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 11:41:24,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 11:41:24,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 11:41:24,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 11:41:24,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 11:41:24,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 11:41:24,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 11:41:24,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 11:41:24,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 11:41:24,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 11:41:24,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 11:41:24,747 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 11:41:24,775 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 11:41:24,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 11:41:24,776 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 11:41:24,776 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 11:41:24,777 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 11:41:24,777 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 11:41:24,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 11:41:24,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 11:41:24,777 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 11:41:24,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 11:41:24,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 11:41:24,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 11:41:24,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 11:41:24,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 11:41:24,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 11:41:24,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 11:41:24,779 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 11:41:24,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 11:41:24,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 11:41:24,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 11:41:24,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 11:41:24,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 11:41:24,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 11:41:24,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 11:41:24,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 11:41:24,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 11:41:24,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 11:41:24,782 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 11:41:24,782 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 11:41:24,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 11:41:24,782 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 11:41:24,782 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 [2021-11-17 11:41:24,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 11:41:24,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 11:41:25,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 11:41:25,001 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 11:41:25,001 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 11:41:25,002 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-17 11:41:25,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3241cfd48/b598200a55e341c5a0dd0b3a21427d20/FLAG355f78c38 [2021-11-17 11:41:25,760 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 11:41:25,760 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-17 11:41:25,813 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3241cfd48/b598200a55e341c5a0dd0b3a21427d20/FLAG355f78c38 [2021-11-17 11:41:26,078 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3241cfd48/b598200a55e341c5a0dd0b3a21427d20 [2021-11-17 11:41:26,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 11:41:26,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 11:41:26,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 11:41:26,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 11:41:26,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 11:41:26,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:41:26" (1/1) ... [2021-11-17 11:41:26,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@351302ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:26, skipping insertion in model container [2021-11-17 11:41:26,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:41:26" (1/1) ... [2021-11-17 11:41:26,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 11:41:26,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 11:41:29,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2021-11-17 11:41:29,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2021-11-17 11:41:29,243 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 11:41:29,275 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 11:41:29,590 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2021-11-17 11:41:29,591 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2021-11-17 11:41:29,594 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 11:41:29,800 INFO L208 MainTranslator]: Completed translation [2021-11-17 11:41:29,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:29 WrapperNode [2021-11-17 11:41:29,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 11:41:29,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 11:41:29,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 11:41:29,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 11:41:29,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:29" (1/1) ... [2021-11-17 11:41:29,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:29" (1/1) ... [2021-11-17 11:41:30,239 INFO L137 Inliner]: procedures = 574, calls = 6348, calls flagged for inlining = 279, calls inlined = 246, statements flattened = 12114 [2021-11-17 11:41:30,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 11:41:30,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 11:41:30,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 11:41:30,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 11:41:30,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:29" (1/1) ... [2021-11-17 11:41:30,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:29" (1/1) ... [2021-11-17 11:41:30,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:29" (1/1) ... [2021-11-17 11:41:30,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:29" (1/1) ... [2021-11-17 11:41:30,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:29" (1/1) ... [2021-11-17 11:41:30,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:29" (1/1) ... [2021-11-17 11:41:30,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:29" (1/1) ... [2021-11-17 11:41:30,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 11:41:30,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 11:41:30,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 11:41:30,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 11:41:30,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:29" (1/1) ... [2021-11-17 11:41:30,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 11:41:30,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 11:41:30,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 11:41:30,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 11:41:30,788 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 11:41:30,788 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 11:41:30,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 11:41:30,789 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 11:41:30,789 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 11:41:30,789 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 11:41:30,789 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_vfta [2021-11-17 11:41:30,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_vfta [2021-11-17 11:41:30,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 11:41:30,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 11:41:30,790 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_standby_eeprom [2021-11-17 11:41:30,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_standby_eeprom [2021-11-17 11:41:30,790 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-17 11:41:30,790 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-17 11:41:30,790 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 11:41:30,790 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 11:41:30,790 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-17 11:41:30,790 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-17 11:41:30,790 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 11:41:30,791 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 11:41:30,791 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_alloc_rx_buffers [2021-11-17 11:41:30,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_alloc_rx_buffers [2021-11-17 11:41:30,791 INFO L130 BoogieDeclarations]: Found specification of procedure mac_addr_valid [2021-11-17 11:41:30,791 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_addr_valid [2021-11-17 11:41:30,791 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_add_vid [2021-11-17 11:41:30,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_add_vid [2021-11-17 11:41:30,791 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_tx_resources [2021-11-17 11:41:30,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_tx_resources [2021-11-17 11:41:30,792 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-17 11:41:30,792 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-17 11:41:30,792 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_multi [2021-11-17 11:41:30,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_multi [2021-11-17 11:41:30,792 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_rar_set [2021-11-17 11:41:30,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_rar_set [2021-11-17 11:41:30,792 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-17 11:41:30,793 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-17 11:41:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 11:41:30,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 11:41:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 11:41:30,793 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 11:41:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-17 11:41:30,793 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-17 11:41:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_resume [2021-11-17 11:41:30,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_resume [2021-11-17 11:41:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 11:41:30,794 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 11:41:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 11:41:30,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 11:41:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 11:41:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-17 11:41:30,795 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-17 11:41:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_eeprom_checksum [2021-11-17 11:41:30,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_eeprom_checksum [2021-11-17 11:41:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-17 11:41:30,796 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-17 11:41:30,796 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_netpoll [2021-11-17 11:41:30,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_netpoll [2021-11-17 11:41:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 11:41:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 11:41:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 11:41:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_raise_clock [2021-11-17 11:41:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_raise_clock [2021-11-17 11:41:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_eeprom [2021-11-17 11:41:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_eeprom [2021-11-17 11:41:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 11:41:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 11:41:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_identify_xpak_vendor [2021-11-17 11:41:30,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_identify_xpak_vendor [2021-11-17 11:41:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 11:41:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 11:41:30,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 11:41:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_mac_reset [2021-11-17 11:41:30,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_mac_reset [2021-11-17 11:41:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_eeprom [2021-11-17 11:41:30,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_eeprom [2021-11-17 11:41:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 11:41:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_rx_resources [2021-11-17 11:41:30,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_rx_resources [2021-11-17 11:41:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 11:41:30,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 11:41:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-17 11:41:30,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-17 11:41:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 11:41:30,800 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 11:41:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-17 11:41:30,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-17 11:41:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-17 11:41:30,800 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-17 11:41:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 11:41:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 11:41:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 11:41:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 11:41:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-17 11:41:30,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-17 11:41:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_regs_len [2021-11-17 11:41:30,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_regs_len [2021-11-17 11:41:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-17 11:41:30,802 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-17 11:41:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 11:41:30,802 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 11:41:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_phy_reg [2021-11-17 11:41:30,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_phy_reg [2021-11-17 11:41:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_for_link [2021-11-17 11:41:30,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_for_link [2021-11-17 11:41:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_option [2021-11-17 11:41:30,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_option [2021-11-17 11:41:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 11:41:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-17 11:41:30,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-17 11:41:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-17 11:41:30,804 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-17 11:41:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 11:41:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-17 11:41:30,804 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-17 11:41:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 11:41:30,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 11:41:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 11:41:30,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 11:41:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 11:41:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 11:41:30,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 11:41:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_lower_clock [2021-11-17 11:41:30,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_lower_clock [2021-11-17 11:41:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_reset [2021-11-17 11:41:30,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_reset [2021-11-17 11:41:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 11:41:30,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 11:41:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-17 11:41:30,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-17 11:41:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-17 11:41:30,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-17 11:41:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_remove [2021-11-17 11:41:30,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_remove [2021-11-17 11:41:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-17 11:41:30,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-17 11:41:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_len [2021-11-17 11:41:30,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_len [2021-11-17 11:41:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_up [2021-11-17 11:41:30,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_up [2021-11-17 11:41:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_irq_enable [2021-11-17 11:41:30,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_irq_enable [2021-11-17 11:41:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-17 11:41:30,815 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-17 11:41:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 11:41:30,815 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 11:41:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-17 11:41:30,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-17 11:41:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_tx_resources [2021-11-17 11:41:30,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_tx_resources [2021-11-17 11:41:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_maybe_stop_tx [2021-11-17 11:41:30,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_maybe_stop_tx [2021-11-17 11:41:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_intr [2021-11-17 11:41:30,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_intr [2021-11-17 11:41:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-17 11:41:30,816 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-17 11:41:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 11:41:30,816 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 11:41:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_open [2021-11-17 11:41:30,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_open [2021-11-17 11:41:30,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 11:41:30,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 11:41:30,817 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-17 11:41:30,817 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-17 11:41:30,817 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-17 11:41:30,817 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-17 11:41:30,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 11:41:30,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 11:41:30,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 11:41:30,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 11:41:30,818 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-17 11:41:30,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-17 11:41:30,818 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-17 11:41:30,818 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-17 11:41:30,818 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-17 11:41:30,818 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-17 11:41:30,818 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_update_stats [2021-11-17 11:41:30,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_update_stats [2021-11-17 11:41:30,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-17 11:41:30,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-17 11:41:30,819 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_and_get_eeprom_data [2021-11-17 11:41:30,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_and_get_eeprom_data [2021-11-17 11:41:30,819 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-17 11:41:30,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-17 11:41:30,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 11:41:30,819 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 11:41:30,819 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 11:41:30,819 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 11:41:30,819 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-11-17 11:41:30,820 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-11-17 11:41:30,820 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_close [2021-11-17 11:41:30,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_close [2021-11-17 11:41:30,820 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-17 11:41:30,820 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-17 11:41:30,820 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-17 11:41:30,820 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-17 11:41:30,820 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 11:41:30,820 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 11:41:30,820 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-17 11:41:30,821 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-17 11:41:30,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 11:41:30,821 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-17 11:41:30,821 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-17 11:41:30,821 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 11:41:30,821 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 11:41:30,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 11:41:30,821 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-17 11:41:30,821 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-17 11:41:30,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 11:41:30,822 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 11:41:30,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 11:41:30,822 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-17 11:41:30,822 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-17 11:41:30,822 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 11:41:30,822 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 11:41:30,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 11:41:30,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 11:41:30,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-17 11:41:30,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-17 11:41:30,823 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_link_reset [2021-11-17 11:41:30,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_link_reset [2021-11-17 11:41:30,823 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_speed_duplex [2021-11-17 11:41:30,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_speed_duplex [2021-11-17 11:41:30,823 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-17 11:41:30,823 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-17 11:41:30,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-11-17 11:41:30,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-11-17 11:41:30,823 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-17 11:41:30,823 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-17 11:41:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 11:41:30,824 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 11:41:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-17 11:41:30,824 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-17 11:41:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 11:41:30,824 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 11:41:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_unmap_and_free_tx_resource [2021-11-17 11:41:30,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_unmap_and_free_tx_resource [2021-11-17 11:41:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-17 11:41:30,824 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-17 11:41:30,825 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 11:41:30,825 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 11:41:30,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 11:41:30,825 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_eeprom [2021-11-17 11:41:30,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_eeprom [2021-11-17 11:41:30,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 11:41:30,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 11:41:30,828 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_phy_reg [2021-11-17 11:41:30,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_phy_reg [2021-11-17 11:41:30,828 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-17 11:41:30,828 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-17 11:41:30,828 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_ee_mac_addr [2021-11-17 11:41:30,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_ee_mac_addr [2021-11-17 11:41:30,828 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-17 11:41:30,828 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-17 11:41:30,829 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-17 11:41:30,829 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-17 11:41:30,829 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_tx_ring [2021-11-17 11:41:30,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_tx_ring [2021-11-17 11:41:30,830 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2021-11-17 11:41:30,830 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2021-11-17 11:41:30,830 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-17 11:41:30,830 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-17 11:41:30,830 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_rx_ring [2021-11-17 11:41:30,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_rx_ring [2021-11-17 11:41:30,831 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_shift_out_bits [2021-11-17 11:41:30,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_shift_out_bits [2021-11-17 11:41:30,831 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_down [2021-11-17 11:41:30,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_down [2021-11-17 11:41:30,831 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout [2021-11-17 11:41:30,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout [2021-11-17 11:41:30,831 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_rx_resources [2021-11-17 11:41:30,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_rx_resources [2021-11-17 11:41:30,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 11:41:30,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 11:41:30,832 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-17 11:41:30,832 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-17 11:41:30,832 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-17 11:41:30,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-17 11:41:30,832 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-17 11:41:30,832 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-17 11:41:30,832 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-17 11:41:30,832 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-17 11:41:30,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 11:41:30,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 11:41:30,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 11:41:30,833 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-17 11:41:30,833 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_data [2021-11-17 11:41:30,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_data [2021-11-17 11:41:31,763 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 11:41:31,773 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 11:41:31,999 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 11:41:56,855 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 11:41:56,890 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 11:41:56,890 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-17 11:41:56,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:41:56 BoogieIcfgContainer [2021-11-17 11:41:56,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 11:41:56,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 11:41:56,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 11:41:56,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 11:41:56,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:41:26" (1/3) ... [2021-11-17 11:41:56,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dfc7bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:41:56, skipping insertion in model container [2021-11-17 11:41:56,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:41:29" (2/3) ... [2021-11-17 11:41:56,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dfc7bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:41:56, skipping insertion in model container [2021-11-17 11:41:56,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:41:56" (3/3) ... [2021-11-17 11:41:56,902 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2021-11-17 11:41:56,911 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 11:41:56,911 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-17 11:41:56,960 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 11:41:56,975 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 [2021-11-17 11:41:56,975 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-17 11:41:57,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 3089 states, 2061 states have (on average 1.2518195050946144) internal successors, (2580), 2105 states have internal predecessors, (2580), 891 states have call successors, (891), 135 states have call predecessors, (891), 134 states have return successors, (887), 874 states have call predecessors, (887), 887 states have call successors, (887) [2021-11-17 11:41:57,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-17 11:41:57,045 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:41:57,046 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:41:57,046 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:41:57,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:41:57,051 INFO L85 PathProgramCache]: Analyzing trace with hash 876043152, now seen corresponding path program 1 times [2021-11-17 11:41:57,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:41:57,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988870660] [2021-11-17 11:41:57,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:41:57,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:41:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:57,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 11:41:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:57,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 11:41:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:57,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 11:41:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:57,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:41:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:57,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:41:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:57,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:41:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:57,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 11:41:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:57,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:41:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:57,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:41:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:57,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:41:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:57,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 11:41:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:57,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:41:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:57,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:41:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:57,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:41:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:57,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:41:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:57,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 11:41:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:57,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 11:41:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:58,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:41:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:58,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 11:41:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:58,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:41:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:58,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 11:41:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:58,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 11:41:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:58,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 11:41:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:58,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 11:41:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:41:58,094 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 11:41:58,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:41:58,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988870660] [2021-11-17 11:41:58,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988870660] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:41:58,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:41:58,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 11:41:58,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257668054] [2021-11-17 11:41:58,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:41:58,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 11:41:58,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:41:58,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 11:41:58,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:41:58,133 INFO L87 Difference]: Start difference. First operand has 3089 states, 2061 states have (on average 1.2518195050946144) internal successors, (2580), 2105 states have internal predecessors, (2580), 891 states have call successors, (891), 135 states have call predecessors, (891), 134 states have return successors, (887), 874 states have call predecessors, (887), 887 states have call successors, (887) Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:42:00,248 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:42:02,308 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:42:09,742 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:42:09,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:42:09,896 INFO L93 Difference]: Finished difference Result 6289 states and 9002 transitions. [2021-11-17 11:42:09,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 11:42:09,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 163 [2021-11-17 11:42:09,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:42:09,928 INFO L225 Difference]: With dead ends: 6289 [2021-11-17 11:42:09,928 INFO L226 Difference]: Without dead ends: 3159 [2021-11-17 11:42:09,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:42:09,954 INFO L933 BasicCegarLoop]: 4022 mSDtfsCounter, 4234 mSDsluCounter, 3643 mSDsCounter, 0 mSdLazyCounter, 3454 mSolverCounterSat, 1867 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4739 SdHoareTripleChecker+Valid, 7665 SdHoareTripleChecker+Invalid, 5324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1867 IncrementalHoareTripleChecker+Valid, 3454 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2021-11-17 11:42:09,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4739 Valid, 7665 Invalid, 5324 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1867 Valid, 3454 Invalid, 3 Unknown, 0 Unchecked, 11.3s Time] [2021-11-17 11:42:09,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-11-17 11:42:10,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3019. [2021-11-17 11:42:10,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.240612648221344) internal successors, (2511), 2065 states have internal predecessors, (2511), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-11-17 11:42:10,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4233 transitions. [2021-11-17 11:42:10,179 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4233 transitions. Word has length 163 [2021-11-17 11:42:10,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:42:10,182 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4233 transitions. [2021-11-17 11:42:10,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:42:10,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4233 transitions. [2021-11-17 11:42:10,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-17 11:42:10,191 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:42:10,192 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:42:10,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 11:42:10,192 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:42:10,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:42:10,193 INFO L85 PathProgramCache]: Analyzing trace with hash -2123784771, now seen corresponding path program 1 times [2021-11-17 11:42:10,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:42:10,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418604579] [2021-11-17 11:42:10,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:42:10,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:42:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 11:42:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 11:42:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 11:42:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:42:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:42:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:42:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 11:42:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:42:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:42:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:42:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 11:42:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:42:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:42:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:42:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:42:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 11:42:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 11:42:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:42:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 11:42:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:42:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 11:42:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 11:42:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 11:42:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 11:42:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:10,697 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 11:42:10,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:42:10,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418604579] [2021-11-17 11:42:10,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418604579] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:42:10,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:42:10,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:42:10,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876707217] [2021-11-17 11:42:10,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:42:10,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:42:10,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:42:10,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:42:10,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:42:10,701 INFO L87 Difference]: Start difference. First operand 3019 states and 4233 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:42:12,785 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:42:14,842 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:42:23,671 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:42:23,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:42:23,822 INFO L93 Difference]: Finished difference Result 6161 states and 8697 transitions. [2021-11-17 11:42:23,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 11:42:23,822 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 164 [2021-11-17 11:42:23,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:42:23,846 INFO L225 Difference]: With dead ends: 6161 [2021-11-17 11:42:23,847 INFO L226 Difference]: Without dead ends: 3159 [2021-11-17 11:42:23,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 11:42:23,866 INFO L933 BasicCegarLoop]: 3937 mSDtfsCounter, 6089 mSDsluCounter, 3573 mSDsCounter, 0 mSdLazyCounter, 3365 mSolverCounterSat, 4810 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6089 SdHoareTripleChecker+Valid, 7510 SdHoareTripleChecker+Invalid, 8178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4810 IncrementalHoareTripleChecker+Valid, 3365 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2021-11-17 11:42:23,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6089 Valid, 7510 Invalid, 8178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4810 Valid, 3365 Invalid, 3 Unknown, 0 Unchecked, 12.5s Time] [2021-11-17 11:42:23,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-11-17 11:42:24,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3019. [2021-11-17 11:42:24,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 2024 states have (on average 1.2401185770750989) internal successors, (2510), 2065 states have internal predecessors, (2510), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2021-11-17 11:42:24,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 4232 transitions. [2021-11-17 11:42:24,021 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 4232 transitions. Word has length 164 [2021-11-17 11:42:24,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:42:24,021 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 4232 transitions. [2021-11-17 11:42:24,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:42:24,022 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 4232 transitions. [2021-11-17 11:42:24,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-17 11:42:24,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:42:24,025 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:42:24,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 11:42:24,025 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:42:24,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:42:24,026 INFO L85 PathProgramCache]: Analyzing trace with hash -514653268, now seen corresponding path program 1 times [2021-11-17 11:42:24,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:42:24,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051337817] [2021-11-17 11:42:24,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:42:24,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:42:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 11:42:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 11:42:24,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 11:42:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:42:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:42:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:42:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 11:42:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:42:24,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:42:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:42:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 11:42:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:42:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:42:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:42:24,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:42:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 11:42:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 11:42:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:42:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 11:42:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:42:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 11:42:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 11:42:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 11:42:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 11:42:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:24,543 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 11:42:24,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:42:24,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051337817] [2021-11-17 11:42:24,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051337817] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:42:24,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:42:24,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:42:24,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554883900] [2021-11-17 11:42:24,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:42:24,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:42:24,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:42:24,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:42:24,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:42:24,547 INFO L87 Difference]: Start difference. First operand 3019 states and 4232 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:42:26,629 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:42:28,686 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:42:39,982 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:42:40,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:42:40,142 INFO L93 Difference]: Finished difference Result 8208 states and 11549 transitions. [2021-11-17 11:42:40,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 11:42:40,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 165 [2021-11-17 11:42:40,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:42:40,171 INFO L225 Difference]: With dead ends: 8208 [2021-11-17 11:42:40,172 INFO L226 Difference]: Without dead ends: 5206 [2021-11-17 11:42:40,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-17 11:42:40,191 INFO L933 BasicCegarLoop]: 5762 mSDtfsCounter, 7136 mSDsluCounter, 6100 mSDsCounter, 0 mSdLazyCounter, 6880 mSolverCounterSat, 5261 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7443 SdHoareTripleChecker+Valid, 11862 SdHoareTripleChecker+Invalid, 12144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5261 IncrementalHoareTripleChecker+Valid, 6880 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2021-11-17 11:42:40,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7443 Valid, 11862 Invalid, 12144 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5261 Valid, 6880 Invalid, 3 Unknown, 0 Unchecked, 15.1s Time] [2021-11-17 11:42:40,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5206 states. [2021-11-17 11:42:40,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5206 to 4983. [2021-11-17 11:42:40,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4983 states, 3344 states have (on average 1.235645933014354) internal successors, (4132), 3407 states have internal predecessors, (4132), 1391 states have call successors, (1391), 245 states have call predecessors, (1391), 246 states have return successors, (1409), 1370 states have call predecessors, (1409), 1391 states have call successors, (1409) [2021-11-17 11:42:40,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4983 states to 4983 states and 6932 transitions. [2021-11-17 11:42:40,420 INFO L78 Accepts]: Start accepts. Automaton has 4983 states and 6932 transitions. Word has length 165 [2021-11-17 11:42:40,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:42:40,421 INFO L470 AbstractCegarLoop]: Abstraction has 4983 states and 6932 transitions. [2021-11-17 11:42:40,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:42:40,422 INFO L276 IsEmpty]: Start isEmpty. Operand 4983 states and 6932 transitions. [2021-11-17 11:42:40,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-17 11:42:40,424 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:42:40,424 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:42:40,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 11:42:40,425 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:42:40,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:42:40,425 INFO L85 PathProgramCache]: Analyzing trace with hash -2056667623, now seen corresponding path program 1 times [2021-11-17 11:42:40,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:42:40,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283581643] [2021-11-17 11:42:40,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:42:40,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:42:40,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 11:42:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 11:42:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 11:42:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:42:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:42:40,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:42:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 11:42:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:42:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:42:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:42:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 11:42:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:42:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:42:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:42:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:42:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 11:42:40,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 11:42:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:42:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 11:42:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:42:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 11:42:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 11:42:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 11:42:40,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 11:42:40,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:40,994 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 11:42:40,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:42:40,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283581643] [2021-11-17 11:42:40,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283581643] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:42:40,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:42:40,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:42:40,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445526176] [2021-11-17 11:42:40,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:42:40,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:42:40,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:42:40,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:42:40,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:42:40,996 INFO L87 Difference]: Start difference. First operand 4983 states and 6932 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:42:43,072 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:42:45,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:42:52,351 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:42:52,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:42:52,491 INFO L93 Difference]: Finished difference Result 8210 states and 11544 transitions. [2021-11-17 11:42:52,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 11:42:52,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 166 [2021-11-17 11:42:52,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:42:52,518 INFO L225 Difference]: With dead ends: 8210 [2021-11-17 11:42:52,518 INFO L226 Difference]: Without dead ends: 5196 [2021-11-17 11:42:52,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 11:42:52,536 INFO L933 BasicCegarLoop]: 3941 mSDtfsCounter, 6075 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 3367 mSolverCounterSat, 4802 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6075 SdHoareTripleChecker+Valid, 7518 SdHoareTripleChecker+Invalid, 8171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4802 IncrementalHoareTripleChecker+Valid, 3367 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2021-11-17 11:42:52,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6075 Valid, 7518 Invalid, 8171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4802 Valid, 3367 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2021-11-17 11:42:52,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5196 states. [2021-11-17 11:42:52,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5196 to 4983. [2021-11-17 11:42:52,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4983 states, 3344 states have (on average 1.2353468899521531) internal successors, (4131), 3407 states have internal predecessors, (4131), 1391 states have call successors, (1391), 245 states have call predecessors, (1391), 246 states have return successors, (1409), 1370 states have call predecessors, (1409), 1391 states have call successors, (1409) [2021-11-17 11:42:52,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4983 states to 4983 states and 6931 transitions. [2021-11-17 11:42:52,758 INFO L78 Accepts]: Start accepts. Automaton has 4983 states and 6931 transitions. Word has length 166 [2021-11-17 11:42:52,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:42:52,759 INFO L470 AbstractCegarLoop]: Abstraction has 4983 states and 6931 transitions. [2021-11-17 11:42:52,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:42:52,759 INFO L276 IsEmpty]: Start isEmpty. Operand 4983 states and 6931 transitions. [2021-11-17 11:42:52,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-17 11:42:52,762 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:42:52,763 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:42:52,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 11:42:52,763 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:42:52,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:42:52,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1795011528, now seen corresponding path program 1 times [2021-11-17 11:42:52,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:42:52,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371736437] [2021-11-17 11:42:52,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:42:52,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:42:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 11:42:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 11:42:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 11:42:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:42:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:42:53,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:42:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 11:42:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:42:53,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:42:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:42:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 11:42:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:42:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:42:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:42:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:42:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 11:42:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 11:42:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:42:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 11:42:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:42:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 11:42:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 11:42:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 11:42:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 11:42:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:42:53,324 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 11:42:53,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:42:53,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371736437] [2021-11-17 11:42:53,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371736437] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:42:53,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:42:53,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:42:53,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452220395] [2021-11-17 11:42:53,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:42:53,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:42:53,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:42:53,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:42:53,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:42:53,328 INFO L87 Difference]: Start difference. First operand 4983 states and 6931 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:42:55,407 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:42:57,470 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:43:05,323 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:43:05,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:43:05,464 INFO L93 Difference]: Finished difference Result 8210 states and 11542 transitions. [2021-11-17 11:43:05,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 11:43:05,464 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 167 [2021-11-17 11:43:05,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:43:05,493 INFO L225 Difference]: With dead ends: 8210 [2021-11-17 11:43:05,493 INFO L226 Difference]: Without dead ends: 5196 [2021-11-17 11:43:05,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 11:43:05,509 INFO L933 BasicCegarLoop]: 3933 mSDtfsCounter, 6077 mSDsluCounter, 3572 mSDsCounter, 0 mSdLazyCounter, 3361 mSolverCounterSat, 4812 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6077 SdHoareTripleChecker+Valid, 7505 SdHoareTripleChecker+Invalid, 8176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4812 IncrementalHoareTripleChecker+Valid, 3361 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2021-11-17 11:43:05,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6077 Valid, 7505 Invalid, 8176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4812 Valid, 3361 Invalid, 3 Unknown, 0 Unchecked, 11.7s Time] [2021-11-17 11:43:05,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5196 states. [2021-11-17 11:43:05,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5196 to 4983. [2021-11-17 11:43:05,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4983 states, 3344 states have (on average 1.2350478468899522) internal successors, (4130), 3407 states have internal predecessors, (4130), 1391 states have call successors, (1391), 245 states have call predecessors, (1391), 246 states have return successors, (1409), 1370 states have call predecessors, (1409), 1391 states have call successors, (1409) [2021-11-17 11:43:05,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4983 states to 4983 states and 6930 transitions. [2021-11-17 11:43:05,840 INFO L78 Accepts]: Start accepts. Automaton has 4983 states and 6930 transitions. Word has length 167 [2021-11-17 11:43:05,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:43:05,841 INFO L470 AbstractCegarLoop]: Abstraction has 4983 states and 6930 transitions. [2021-11-17 11:43:05,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:43:05,841 INFO L276 IsEmpty]: Start isEmpty. Operand 4983 states and 6930 transitions. [2021-11-17 11:43:05,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-17 11:43:05,843 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:43:05,843 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:43:05,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 11:43:05,844 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:43:05,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:43:05,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1052497525, now seen corresponding path program 1 times [2021-11-17 11:43:05,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:43:05,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921318214] [2021-11-17 11:43:05,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:43:05,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:43:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 11:43:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 11:43:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 11:43:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:43:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:43:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 11:43:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:43:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:43:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 11:43:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:43:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:43:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:43:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 11:43:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 11:43:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 11:43:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:43:06,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 11:43:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 11:43:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 11:43:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 11:43:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:06,305 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 11:43:06,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:43:06,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921318214] [2021-11-17 11:43:06,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921318214] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:43:06,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:43:06,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:43:06,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219144256] [2021-11-17 11:43:06,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:43:06,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:43:06,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:43:06,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:43:06,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:43:06,308 INFO L87 Difference]: Start difference. First operand 4983 states and 6930 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:43:08,425 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:43:10,498 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:43:18,477 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:43:18,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:43:18,616 INFO L93 Difference]: Finished difference Result 8210 states and 11540 transitions. [2021-11-17 11:43:18,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 11:43:18,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2021-11-17 11:43:18,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:43:18,643 INFO L225 Difference]: With dead ends: 8210 [2021-11-17 11:43:18,644 INFO L226 Difference]: Without dead ends: 5196 [2021-11-17 11:43:18,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 11:43:18,659 INFO L933 BasicCegarLoop]: 3939 mSDtfsCounter, 6067 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 3364 mSolverCounterSat, 4802 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6067 SdHoareTripleChecker+Valid, 7516 SdHoareTripleChecker+Invalid, 8169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4802 IncrementalHoareTripleChecker+Valid, 3364 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-11-17 11:43:18,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6067 Valid, 7516 Invalid, 8169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4802 Valid, 3364 Invalid, 3 Unknown, 0 Unchecked, 11.9s Time] [2021-11-17 11:43:18,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5196 states. [2021-11-17 11:43:18,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5196 to 4983. [2021-11-17 11:43:18,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4983 states, 3344 states have (on average 1.2347488038277512) internal successors, (4129), 3407 states have internal predecessors, (4129), 1391 states have call successors, (1391), 245 states have call predecessors, (1391), 246 states have return successors, (1409), 1370 states have call predecessors, (1409), 1391 states have call successors, (1409) [2021-11-17 11:43:18,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4983 states to 4983 states and 6929 transitions. [2021-11-17 11:43:18,936 INFO L78 Accepts]: Start accepts. Automaton has 4983 states and 6929 transitions. Word has length 168 [2021-11-17 11:43:18,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:43:18,937 INFO L470 AbstractCegarLoop]: Abstraction has 4983 states and 6929 transitions. [2021-11-17 11:43:18,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:43:18,937 INFO L276 IsEmpty]: Start isEmpty. Operand 4983 states and 6929 transitions. [2021-11-17 11:43:18,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-17 11:43:18,939 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:43:18,939 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:43:18,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 11:43:18,940 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:43:18,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:43:18,940 INFO L85 PathProgramCache]: Analyzing trace with hash -376083484, now seen corresponding path program 1 times [2021-11-17 11:43:18,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:43:18,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350370924] [2021-11-17 11:43:18,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:43:18,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:43:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 11:43:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 11:43:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 11:43:19,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:43:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:43:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 11:43:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:43:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:43:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 11:43:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:43:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:43:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:43:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 11:43:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 11:43:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 11:43:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:43:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 11:43:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 11:43:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 11:43:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 11:43:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:19,359 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 11:43:19,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:43:19,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350370924] [2021-11-17 11:43:19,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350370924] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:43:19,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:43:19,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:43:19,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572035789] [2021-11-17 11:43:19,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:43:19,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:43:19,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:43:19,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:43:19,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:43:19,361 INFO L87 Difference]: Start difference. First operand 4983 states and 6929 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:43:21,437 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:43:23,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:43:31,490 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:43:31,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:43:31,612 INFO L93 Difference]: Finished difference Result 8210 states and 11538 transitions. [2021-11-17 11:43:31,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 11:43:31,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 169 [2021-11-17 11:43:31,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:43:31,631 INFO L225 Difference]: With dead ends: 8210 [2021-11-17 11:43:31,632 INFO L226 Difference]: Without dead ends: 5196 [2021-11-17 11:43:31,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 11:43:31,641 INFO L933 BasicCegarLoop]: 3937 mSDtfsCounter, 6063 mSDsluCounter, 3576 mSDsCounter, 0 mSdLazyCounter, 3362 mSolverCounterSat, 4804 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6063 SdHoareTripleChecker+Valid, 7513 SdHoareTripleChecker+Invalid, 8169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4804 IncrementalHoareTripleChecker+Valid, 3362 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2021-11-17 11:43:31,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6063 Valid, 7513 Invalid, 8169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4804 Valid, 3362 Invalid, 3 Unknown, 0 Unchecked, 11.8s Time] [2021-11-17 11:43:31,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5196 states. [2021-11-17 11:43:31,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5196 to 4983. [2021-11-17 11:43:31,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4983 states, 3344 states have (on average 1.2344497607655502) internal successors, (4128), 3407 states have internal predecessors, (4128), 1391 states have call successors, (1391), 245 states have call predecessors, (1391), 246 states have return successors, (1409), 1370 states have call predecessors, (1409), 1391 states have call successors, (1409) [2021-11-17 11:43:31,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4983 states to 4983 states and 6928 transitions. [2021-11-17 11:43:31,848 INFO L78 Accepts]: Start accepts. Automaton has 4983 states and 6928 transitions. Word has length 169 [2021-11-17 11:43:31,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:43:31,848 INFO L470 AbstractCegarLoop]: Abstraction has 4983 states and 6928 transitions. [2021-11-17 11:43:31,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:43:31,848 INFO L276 IsEmpty]: Start isEmpty. Operand 4983 states and 6928 transitions. [2021-11-17 11:43:31,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-17 11:43:31,851 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:43:31,851 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:43:31,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 11:43:31,851 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:43:31,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:43:31,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1597905199, now seen corresponding path program 1 times [2021-11-17 11:43:31,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:43:31,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304231851] [2021-11-17 11:43:31,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:43:31,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:43:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 11:43:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 11:43:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 11:43:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:43:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:43:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 11:43:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:43:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:43:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 11:43:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:43:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:43:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:43:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 11:43:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 11:43:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 11:43:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:43:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 11:43:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 11:43:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 11:43:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 11:43:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:32,275 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 11:43:32,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:43:32,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304231851] [2021-11-17 11:43:32,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304231851] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:43:32,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:43:32,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:43:32,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085131683] [2021-11-17 11:43:32,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:43:32,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:43:32,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:43:32,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:43:32,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:43:32,278 INFO L87 Difference]: Start difference. First operand 4983 states and 6928 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:43:34,357 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:43:36,417 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:43:44,433 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:43:44,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:43:44,560 INFO L93 Difference]: Finished difference Result 8210 states and 11536 transitions. [2021-11-17 11:43:44,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 11:43:44,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 170 [2021-11-17 11:43:44,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:43:44,580 INFO L225 Difference]: With dead ends: 8210 [2021-11-17 11:43:44,580 INFO L226 Difference]: Without dead ends: 5196 [2021-11-17 11:43:44,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 11:43:44,592 INFO L933 BasicCegarLoop]: 3934 mSDtfsCounter, 6059 mSDsluCounter, 3574 mSDsCounter, 0 mSdLazyCounter, 3359 mSolverCounterSat, 4808 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6059 SdHoareTripleChecker+Valid, 7508 SdHoareTripleChecker+Invalid, 8170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4808 IncrementalHoareTripleChecker+Valid, 3359 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-11-17 11:43:44,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6059 Valid, 7508 Invalid, 8170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4808 Valid, 3359 Invalid, 3 Unknown, 0 Unchecked, 11.9s Time] [2021-11-17 11:43:44,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5196 states. [2021-11-17 11:43:44,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5196 to 4983. [2021-11-17 11:43:44,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4983 states, 3344 states have (on average 1.2341507177033493) internal successors, (4127), 3407 states have internal predecessors, (4127), 1391 states have call successors, (1391), 245 states have call predecessors, (1391), 246 states have return successors, (1409), 1370 states have call predecessors, (1409), 1391 states have call successors, (1409) [2021-11-17 11:43:44,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4983 states to 4983 states and 6927 transitions. [2021-11-17 11:43:44,799 INFO L78 Accepts]: Start accepts. Automaton has 4983 states and 6927 transitions. Word has length 170 [2021-11-17 11:43:44,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:43:44,800 INFO L470 AbstractCegarLoop]: Abstraction has 4983 states and 6927 transitions. [2021-11-17 11:43:44,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:43:44,800 INFO L276 IsEmpty]: Start isEmpty. Operand 4983 states and 6927 transitions. [2021-11-17 11:43:44,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-17 11:43:44,803 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:43:44,803 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:43:44,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 11:43:44,804 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:43:44,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:43:44,804 INFO L85 PathProgramCache]: Analyzing trace with hash -705156096, now seen corresponding path program 1 times [2021-11-17 11:43:44,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:43:44,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522668625] [2021-11-17 11:43:44,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:43:44,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:43:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 11:43:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 11:43:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 11:43:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:43:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:43:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 11:43:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:43:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:43:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 11:43:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:43:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:43:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:43:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 11:43:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 11:43:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 11:43:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:43:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 11:43:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 11:43:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 11:43:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 11:43:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:45,202 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 11:43:45,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:43:45,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522668625] [2021-11-17 11:43:45,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522668625] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:43:45,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:43:45,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:43:45,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836112389] [2021-11-17 11:43:45,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:43:45,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:43:45,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:43:45,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:43:45,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:43:45,205 INFO L87 Difference]: Start difference. First operand 4983 states and 6927 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:43:47,284 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:43:49,350 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:43:57,908 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:43:58,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:43:58,053 INFO L93 Difference]: Finished difference Result 8210 states and 11534 transitions. [2021-11-17 11:43:58,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 11:43:58,053 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2021-11-17 11:43:58,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:43:58,074 INFO L225 Difference]: With dead ends: 8210 [2021-11-17 11:43:58,075 INFO L226 Difference]: Without dead ends: 5196 [2021-11-17 11:43:58,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 11:43:58,089 INFO L933 BasicCegarLoop]: 3933 mSDtfsCounter, 6055 mSDsluCounter, 3574 mSDsCounter, 0 mSdLazyCounter, 3358 mSolverCounterSat, 4808 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6055 SdHoareTripleChecker+Valid, 7507 SdHoareTripleChecker+Invalid, 8169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4808 IncrementalHoareTripleChecker+Valid, 3358 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2021-11-17 11:43:58,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6055 Valid, 7507 Invalid, 8169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4808 Valid, 3358 Invalid, 3 Unknown, 0 Unchecked, 12.4s Time] [2021-11-17 11:43:58,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5196 states. [2021-11-17 11:43:58,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5196 to 4983. [2021-11-17 11:43:58,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4983 states, 3344 states have (on average 1.2338516746411483) internal successors, (4126), 3407 states have internal predecessors, (4126), 1391 states have call successors, (1391), 245 states have call predecessors, (1391), 246 states have return successors, (1409), 1370 states have call predecessors, (1409), 1391 states have call successors, (1409) [2021-11-17 11:43:58,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4983 states to 4983 states and 6926 transitions. [2021-11-17 11:43:58,308 INFO L78 Accepts]: Start accepts. Automaton has 4983 states and 6926 transitions. Word has length 171 [2021-11-17 11:43:58,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:43:58,309 INFO L470 AbstractCegarLoop]: Abstraction has 4983 states and 6926 transitions. [2021-11-17 11:43:58,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:43:58,309 INFO L276 IsEmpty]: Start isEmpty. Operand 4983 states and 6926 transitions. [2021-11-17 11:43:58,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-17 11:43:58,311 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:43:58,311 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:43:58,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 11:43:58,312 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:43:58,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:43:58,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1314778925, now seen corresponding path program 1 times [2021-11-17 11:43:58,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:43:58,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726610389] [2021-11-17 11:43:58,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:43:58,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:43:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 11:43:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 11:43:58,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 11:43:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:43:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:43:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 11:43:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:43:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:43:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 11:43:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:43:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:43:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:43:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 11:43:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 11:43:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:43:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 11:43:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:43:58,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 11:43:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 11:43:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 11:43:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 11:43:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:43:58,747 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 11:43:58,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:43:58,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726610389] [2021-11-17 11:43:58,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726610389] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:43:58,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:43:58,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:43:58,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660746440] [2021-11-17 11:43:58,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:43:58,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:43:58,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:43:58,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:43:58,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:43:58,749 INFO L87 Difference]: Start difference. First operand 4983 states and 6926 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:44:00,841 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:44:02,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:44:11,068 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:44:11,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:44:11,206 INFO L93 Difference]: Finished difference Result 8210 states and 11532 transitions. [2021-11-17 11:44:11,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 11:44:11,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 172 [2021-11-17 11:44:11,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:44:11,227 INFO L225 Difference]: With dead ends: 8210 [2021-11-17 11:44:11,228 INFO L226 Difference]: Without dead ends: 5196 [2021-11-17 11:44:11,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 11:44:11,241 INFO L933 BasicCegarLoop]: 3933 mSDtfsCounter, 6051 mSDsluCounter, 3575 mSDsCounter, 0 mSdLazyCounter, 3358 mSolverCounterSat, 4806 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6051 SdHoareTripleChecker+Valid, 7508 SdHoareTripleChecker+Invalid, 8167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4806 IncrementalHoareTripleChecker+Valid, 3358 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2021-11-17 11:44:11,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6051 Valid, 7508 Invalid, 8167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4806 Valid, 3358 Invalid, 3 Unknown, 0 Unchecked, 12.0s Time] [2021-11-17 11:44:11,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5196 states. [2021-11-17 11:44:11,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5196 to 4983. [2021-11-17 11:44:11,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4983 states, 3344 states have (on average 1.2335526315789473) internal successors, (4125), 3407 states have internal predecessors, (4125), 1391 states have call successors, (1391), 245 states have call predecessors, (1391), 246 states have return successors, (1409), 1370 states have call predecessors, (1409), 1391 states have call successors, (1409) [2021-11-17 11:44:11,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4983 states to 4983 states and 6925 transitions. [2021-11-17 11:44:11,463 INFO L78 Accepts]: Start accepts. Automaton has 4983 states and 6925 transitions. Word has length 172 [2021-11-17 11:44:11,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:44:11,465 INFO L470 AbstractCegarLoop]: Abstraction has 4983 states and 6925 transitions. [2021-11-17 11:44:11,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:44:11,465 INFO L276 IsEmpty]: Start isEmpty. Operand 4983 states and 6925 transitions. [2021-11-17 11:44:11,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-17 11:44:11,468 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:44:11,468 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:44:11,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 11:44:11,469 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:44:11,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:44:11,469 INFO L85 PathProgramCache]: Analyzing trace with hash -377228260, now seen corresponding path program 1 times [2021-11-17 11:44:11,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:44:11,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333429111] [2021-11-17 11:44:11,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:44:11,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:44:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 11:44:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 11:44:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 11:44:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:44:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:44:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:44:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 11:44:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:44:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:44:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:44:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 11:44:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:44:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:44:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:44:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:44:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 11:44:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 11:44:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:44:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 11:44:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:44:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 11:44:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 11:44:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 11:44:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 11:44:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:11,956 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 11:44:11,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:44:11,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333429111] [2021-11-17 11:44:11,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333429111] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:44:11,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:44:11,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:44:11,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983633502] [2021-11-17 11:44:11,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:44:11,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:44:11,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:44:11,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:44:11,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:44:11,958 INFO L87 Difference]: Start difference. First operand 4983 states and 6925 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:44:14,035 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:44:16,102 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:44:24,359 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:44:24,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:44:24,500 INFO L93 Difference]: Finished difference Result 8210 states and 11530 transitions. [2021-11-17 11:44:24,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 11:44:24,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 173 [2021-11-17 11:44:24,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:44:24,522 INFO L225 Difference]: With dead ends: 8210 [2021-11-17 11:44:24,522 INFO L226 Difference]: Without dead ends: 5196 [2021-11-17 11:44:24,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 11:44:24,536 INFO L933 BasicCegarLoop]: 3930 mSDtfsCounter, 6053 mSDsluCounter, 3575 mSDsCounter, 0 mSdLazyCounter, 3358 mSolverCounterSat, 4806 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6053 SdHoareTripleChecker+Valid, 7505 SdHoareTripleChecker+Invalid, 8167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4806 IncrementalHoareTripleChecker+Valid, 3358 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2021-11-17 11:44:24,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6053 Valid, 7505 Invalid, 8167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4806 Valid, 3358 Invalid, 3 Unknown, 0 Unchecked, 12.1s Time] [2021-11-17 11:44:24,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5196 states. [2021-11-17 11:44:24,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5196 to 4983. [2021-11-17 11:44:24,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4983 states, 3344 states have (on average 1.2332535885167464) internal successors, (4124), 3407 states have internal predecessors, (4124), 1391 states have call successors, (1391), 245 states have call predecessors, (1391), 246 states have return successors, (1409), 1370 states have call predecessors, (1409), 1391 states have call successors, (1409) [2021-11-17 11:44:24,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4983 states to 4983 states and 6924 transitions. [2021-11-17 11:44:24,818 INFO L78 Accepts]: Start accepts. Automaton has 4983 states and 6924 transitions. Word has length 173 [2021-11-17 11:44:24,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:44:24,819 INFO L470 AbstractCegarLoop]: Abstraction has 4983 states and 6924 transitions. [2021-11-17 11:44:24,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:44:24,819 INFO L276 IsEmpty]: Start isEmpty. Operand 4983 states and 6924 transitions. [2021-11-17 11:44:24,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-17 11:44:24,821 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:44:24,821 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:44:24,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 11:44:24,822 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:44:24,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:44:24,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1175326839, now seen corresponding path program 1 times [2021-11-17 11:44:24,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:44:24,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632010630] [2021-11-17 11:44:24,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:44:24,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:44:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 11:44:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 11:44:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 11:44:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:44:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:44:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:44:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 11:44:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:44:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:44:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:44:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 11:44:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:44:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:44:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:44:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:44:25,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 11:44:25,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 11:44:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:44:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 11:44:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:44:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 11:44:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 11:44:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 11:44:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 11:44:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:25,208 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 11:44:25,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:44:25,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632010630] [2021-11-17 11:44:25,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632010630] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:44:25,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:44:25,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:44:25,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751338334] [2021-11-17 11:44:25,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:44:25,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:44:25,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:44:25,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:44:25,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:44:25,211 INFO L87 Difference]: Start difference. First operand 4983 states and 6924 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:44:27,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:44:29,355 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:44:43,134 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:44:43,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:44:43,326 INFO L93 Difference]: Finished difference Result 8220 states and 11547 transitions. [2021-11-17 11:44:43,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 11:44:43,327 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 174 [2021-11-17 11:44:43,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:44:43,345 INFO L225 Difference]: With dead ends: 8220 [2021-11-17 11:44:43,345 INFO L226 Difference]: Without dead ends: 5206 [2021-11-17 11:44:43,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-17 11:44:43,355 INFO L933 BasicCegarLoop]: 5890 mSDtfsCounter, 6916 mSDsluCounter, 6146 mSDsCounter, 0 mSdLazyCounter, 6991 mSolverCounterSat, 5192 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7222 SdHoareTripleChecker+Valid, 12036 SdHoareTripleChecker+Invalid, 12186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5192 IncrementalHoareTripleChecker+Valid, 6991 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-11-17 11:44:43,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7222 Valid, 12036 Invalid, 12186 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5192 Valid, 6991 Invalid, 3 Unknown, 0 Unchecked, 17.5s Time] [2021-11-17 11:44:43,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5206 states. [2021-11-17 11:44:43,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5206 to 4983. [2021-11-17 11:44:43,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4983 states, 3344 states have (on average 1.2329545454545454) internal successors, (4123), 3407 states have internal predecessors, (4123), 1391 states have call successors, (1391), 245 states have call predecessors, (1391), 246 states have return successors, (1409), 1370 states have call predecessors, (1409), 1391 states have call successors, (1409) [2021-11-17 11:44:43,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4983 states to 4983 states and 6923 transitions. [2021-11-17 11:44:43,585 INFO L78 Accepts]: Start accepts. Automaton has 4983 states and 6923 transitions. Word has length 174 [2021-11-17 11:44:43,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:44:43,585 INFO L470 AbstractCegarLoop]: Abstraction has 4983 states and 6923 transitions. [2021-11-17 11:44:43,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:44:43,586 INFO L276 IsEmpty]: Start isEmpty. Operand 4983 states and 6923 transitions. [2021-11-17 11:44:43,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-17 11:44:43,588 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:44:43,588 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:44:43,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 11:44:43,589 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:44:43,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:44:43,589 INFO L85 PathProgramCache]: Analyzing trace with hash -32062408, now seen corresponding path program 1 times [2021-11-17 11:44:43,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:44:43,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802557773] [2021-11-17 11:44:43,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:44:43,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:44:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 11:44:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 11:44:43,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 11:44:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:44:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:44:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:44:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 11:44:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:44:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:44:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:44:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 11:44:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:44:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:44:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:44:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:44:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 11:44:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 11:44:43,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:44:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 11:44:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:44:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 11:44:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 11:44:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 11:44:43,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 11:44:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:43,998 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 11:44:43,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:44:43,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802557773] [2021-11-17 11:44:43,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802557773] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:44:43,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:44:43,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:44:43,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50828227] [2021-11-17 11:44:43,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:44:44,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:44:44,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:44:44,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:44:44,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:44:44,001 INFO L87 Difference]: Start difference. First operand 4983 states and 6923 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:44:46,085 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:44:48,152 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:44:57,308 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:44:57,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:44:57,469 INFO L93 Difference]: Finished difference Result 8210 states and 11526 transitions. [2021-11-17 11:44:57,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 11:44:57,469 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 175 [2021-11-17 11:44:57,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:44:57,488 INFO L225 Difference]: With dead ends: 8210 [2021-11-17 11:44:57,488 INFO L226 Difference]: Without dead ends: 5196 [2021-11-17 11:44:57,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 11:44:57,501 INFO L933 BasicCegarLoop]: 3932 mSDtfsCounter, 6039 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 3357 mSolverCounterSat, 4802 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6039 SdHoareTripleChecker+Valid, 7509 SdHoareTripleChecker+Invalid, 8162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4802 IncrementalHoareTripleChecker+Valid, 3357 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2021-11-17 11:44:57,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6039 Valid, 7509 Invalid, 8162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4802 Valid, 3357 Invalid, 3 Unknown, 0 Unchecked, 13.0s Time] [2021-11-17 11:44:57,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5196 states. [2021-11-17 11:44:57,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5196 to 4983. [2021-11-17 11:44:57,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4983 states, 3344 states have (on average 1.2326555023923444) internal successors, (4122), 3407 states have internal predecessors, (4122), 1391 states have call successors, (1391), 245 states have call predecessors, (1391), 246 states have return successors, (1409), 1370 states have call predecessors, (1409), 1391 states have call successors, (1409) [2021-11-17 11:44:57,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4983 states to 4983 states and 6922 transitions. [2021-11-17 11:44:57,731 INFO L78 Accepts]: Start accepts. Automaton has 4983 states and 6922 transitions. Word has length 175 [2021-11-17 11:44:57,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:44:57,731 INFO L470 AbstractCegarLoop]: Abstraction has 4983 states and 6922 transitions. [2021-11-17 11:44:57,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:44:57,731 INFO L276 IsEmpty]: Start isEmpty. Operand 4983 states and 6922 transitions. [2021-11-17 11:44:57,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-17 11:44:57,733 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:44:57,733 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:44:57,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 11:44:57,734 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:44:57,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:44:57,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1163913189, now seen corresponding path program 1 times [2021-11-17 11:44:57,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:44:57,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491167509] [2021-11-17 11:44:57,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:44:57,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:44:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:57,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 11:44:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:57,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 11:44:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:57,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 11:44:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:57,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:44:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:57,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:44:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:44:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 11:44:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:44:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:44:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:44:58,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 11:44:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:44:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:44:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:44:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:44:58,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 11:44:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 11:44:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:44:58,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 11:44:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:44:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 11:44:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 11:44:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 11:44:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 11:44:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:44:58,170 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 11:44:58,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:44:58,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491167509] [2021-11-17 11:44:58,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491167509] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:44:58,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:44:58,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:44:58,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941996283] [2021-11-17 11:44:58,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:44:58,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:44:58,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:44:58,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:44:58,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:44:58,173 INFO L87 Difference]: Start difference. First operand 4983 states and 6922 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:45:00,258 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:45:02,323 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:45:16,560 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:45:16,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:45:16,766 INFO L93 Difference]: Finished difference Result 8220 states and 11543 transitions. [2021-11-17 11:45:16,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 11:45:16,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 176 [2021-11-17 11:45:16,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:45:16,785 INFO L225 Difference]: With dead ends: 8220 [2021-11-17 11:45:16,785 INFO L226 Difference]: Without dead ends: 5206 [2021-11-17 11:45:16,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-17 11:45:16,795 INFO L933 BasicCegarLoop]: 5884 mSDtfsCounter, 6908 mSDsluCounter, 6142 mSDsCounter, 0 mSdLazyCounter, 6984 mSolverCounterSat, 5197 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7215 SdHoareTripleChecker+Valid, 12026 SdHoareTripleChecker+Invalid, 12184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5197 IncrementalHoareTripleChecker+Valid, 6984 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2021-11-17 11:45:16,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7215 Valid, 12026 Invalid, 12184 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5197 Valid, 6984 Invalid, 3 Unknown, 0 Unchecked, 18.0s Time] [2021-11-17 11:45:16,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5206 states. [2021-11-17 11:45:17,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5206 to 4983. [2021-11-17 11:45:17,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4983 states, 3344 states have (on average 1.2323564593301435) internal successors, (4121), 3407 states have internal predecessors, (4121), 1391 states have call successors, (1391), 245 states have call predecessors, (1391), 246 states have return successors, (1409), 1370 states have call predecessors, (1409), 1391 states have call successors, (1409) [2021-11-17 11:45:17,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4983 states to 4983 states and 6921 transitions. [2021-11-17 11:45:17,059 INFO L78 Accepts]: Start accepts. Automaton has 4983 states and 6921 transitions. Word has length 176 [2021-11-17 11:45:17,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:45:17,060 INFO L470 AbstractCegarLoop]: Abstraction has 4983 states and 6921 transitions. [2021-11-17 11:45:17,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:45:17,060 INFO L276 IsEmpty]: Start isEmpty. Operand 4983 states and 6921 transitions. [2021-11-17 11:45:17,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-17 11:45:17,062 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:45:17,062 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:45:17,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-17 11:45:17,062 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:45:17,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:45:17,063 INFO L85 PathProgramCache]: Analyzing trace with hash -301032364, now seen corresponding path program 1 times [2021-11-17 11:45:17,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:45:17,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694724888] [2021-11-17 11:45:17,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:45:17,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:45:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 11:45:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 11:45:17,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 11:45:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:45:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:45:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:45:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 11:45:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:45:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:45:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:45:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 11:45:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:45:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:45:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:45:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:45:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 11:45:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 11:45:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:45:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 11:45:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:45:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 11:45:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 11:45:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 11:45:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 11:45:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:17,520 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 11:45:17,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:45:17,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694724888] [2021-11-17 11:45:17,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694724888] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:45:17,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:45:17,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:45:17,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804562293] [2021-11-17 11:45:17,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:45:17,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:45:17,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:45:17,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:45:17,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:45:17,523 INFO L87 Difference]: Start difference. First operand 4983 states and 6921 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:45:19,654 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:45:21,729 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:45:30,120 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:45:30,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:45:30,276 INFO L93 Difference]: Finished difference Result 8210 states and 11522 transitions. [2021-11-17 11:45:30,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 11:45:30,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2021-11-17 11:45:30,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:45:30,293 INFO L225 Difference]: With dead ends: 8210 [2021-11-17 11:45:30,294 INFO L226 Difference]: Without dead ends: 5196 [2021-11-17 11:45:30,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 11:45:30,306 INFO L933 BasicCegarLoop]: 3930 mSDtfsCounter, 6031 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 3356 mSolverCounterSat, 4802 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6031 SdHoareTripleChecker+Valid, 7507 SdHoareTripleChecker+Invalid, 8160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4802 IncrementalHoareTripleChecker+Valid, 3356 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2021-11-17 11:45:30,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6031 Valid, 7507 Invalid, 8160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4802 Valid, 3356 Invalid, 2 Unknown, 0 Unchecked, 12.2s Time] [2021-11-17 11:45:30,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5196 states. [2021-11-17 11:45:30,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5196 to 4983. [2021-11-17 11:45:30,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4983 states, 3344 states have (on average 1.2320574162679425) internal successors, (4120), 3407 states have internal predecessors, (4120), 1391 states have call successors, (1391), 245 states have call predecessors, (1391), 246 states have return successors, (1409), 1370 states have call predecessors, (1409), 1391 states have call successors, (1409) [2021-11-17 11:45:30,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4983 states to 4983 states and 6920 transitions. [2021-11-17 11:45:30,533 INFO L78 Accepts]: Start accepts. Automaton has 4983 states and 6920 transitions. Word has length 177 [2021-11-17 11:45:30,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:45:30,533 INFO L470 AbstractCegarLoop]: Abstraction has 4983 states and 6920 transitions. [2021-11-17 11:45:30,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 11:45:30,534 INFO L276 IsEmpty]: Start isEmpty. Operand 4983 states and 6920 transitions. [2021-11-17 11:45:30,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-17 11:45:30,535 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:45:30,536 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:45:30,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-17 11:45:30,536 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:45:30,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:45:30,536 INFO L85 PathProgramCache]: Analyzing trace with hash -272403213, now seen corresponding path program 1 times [2021-11-17 11:45:30,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:45:30,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737340443] [2021-11-17 11:45:30,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:45:30,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:45:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 11:45:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 11:45:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 11:45:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:45:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:45:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:45:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 11:45:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:45:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:45:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:45:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 11:45:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:45:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:45:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:45:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:45:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 11:45:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 11:45:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:45:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 11:45:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:45:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 11:45:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 11:45:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 11:45:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 11:45:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:30,839 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-17 11:45:30,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:45:30,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737340443] [2021-11-17 11:45:30,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737340443] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:45:30,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:45:30,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:45:30,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023987279] [2021-11-17 11:45:30,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:45:30,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:45:30,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:45:30,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:45:30,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:45:30,841 INFO L87 Difference]: Start difference. First operand 4983 states and 6920 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2021-11-17 11:45:32,930 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:45:41,249 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:45:43,275 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:45:45,301 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:45:45,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:45:45,399 INFO L93 Difference]: Finished difference Result 5198 states and 7258 transitions. [2021-11-17 11:45:45,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 11:45:45,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 177 [2021-11-17 11:45:45,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:45:45,416 INFO L225 Difference]: With dead ends: 5198 [2021-11-17 11:45:45,416 INFO L226 Difference]: Without dead ends: 5196 [2021-11-17 11:45:45,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-17 11:45:45,418 INFO L933 BasicCegarLoop]: 3942 mSDtfsCounter, 880 mSDsluCounter, 11606 mSDsCounter, 0 mSdLazyCounter, 3816 mSolverCounterSat, 898 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 15548 SdHoareTripleChecker+Invalid, 4718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 898 IncrementalHoareTripleChecker+Valid, 3816 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2021-11-17 11:45:45,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1162 Valid, 15548 Invalid, 4718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [898 Valid, 3816 Invalid, 4 Unknown, 0 Unchecked, 14.1s Time] [2021-11-17 11:45:45,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5196 states. [2021-11-17 11:45:45,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5196 to 4983. [2021-11-17 11:45:45,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4983 states, 3344 states have (on average 1.2317583732057416) internal successors, (4119), 3407 states have internal predecessors, (4119), 1391 states have call successors, (1391), 245 states have call predecessors, (1391), 247 states have return successors, (1413), 1370 states have call predecessors, (1413), 1391 states have call successors, (1413) [2021-11-17 11:45:45,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4983 states to 4983 states and 6923 transitions. [2021-11-17 11:45:45,643 INFO L78 Accepts]: Start accepts. Automaton has 4983 states and 6923 transitions. Word has length 177 [2021-11-17 11:45:45,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:45:45,643 INFO L470 AbstractCegarLoop]: Abstraction has 4983 states and 6923 transitions. [2021-11-17 11:45:45,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2021-11-17 11:45:45,643 INFO L276 IsEmpty]: Start isEmpty. Operand 4983 states and 6923 transitions. [2021-11-17 11:45:45,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-17 11:45:45,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:45:45,645 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-17 11:45:45,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-17 11:45:45,645 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 11:45:45,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:45:45,646 INFO L85 PathProgramCache]: Analyzing trace with hash 497124328, now seen corresponding path program 1 times [2021-11-17 11:45:45,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:45:45,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888561407] [2021-11-17 11:45:45,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:45:45,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:45:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 11:45:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 11:45:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 11:45:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:45:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:45:45,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:45:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 11:45:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:45:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:45:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:45:45,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 11:45:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:45:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 11:45:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 11:45:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:45:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 11:45:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 11:45:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:45:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 11:45:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:45:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 11:45:45,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:45,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 11:45:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:46,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:45:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:46,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:45:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:46,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:45:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:46,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:45:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:46,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:45:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:46,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 11:45:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:46,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 11:45:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:45:46,076 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2021-11-17 11:45:46,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:45:46,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888561407] [2021-11-17 11:45:46,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888561407] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:45:46,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:45:46,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 11:45:46,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765495968] [2021-11-17 11:45:46,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:45:46,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 11:45:46,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:45:46,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 11:45:46,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 11:45:46,080 INFO L87 Difference]: Start difference. First operand 4983 states and 6923 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-17 11:45:48,167 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:45:55,992 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:45:58,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:46:00,053 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:46:00,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:46:00,159 INFO L93 Difference]: Finished difference Result 5196 states and 7256 transitions. [2021-11-17 11:46:00,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 11:46:00,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 201 [2021-11-17 11:46:00,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:46:00,161 INFO L225 Difference]: With dead ends: 5196 [2021-11-17 11:46:00,161 INFO L226 Difference]: Without dead ends: 0 [2021-11-17 11:46:00,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-17 11:46:00,174 INFO L933 BasicCegarLoop]: 3941 mSDtfsCounter, 878 mSDsluCounter, 11611 mSDsCounter, 0 mSdLazyCounter, 3793 mSolverCounterSat, 896 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 15552 SdHoareTripleChecker+Invalid, 4693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 896 IncrementalHoareTripleChecker+Valid, 3793 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2021-11-17 11:46:00,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 15552 Invalid, 4693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [896 Valid, 3793 Invalid, 4 Unknown, 0 Unchecked, 13.7s Time] [2021-11-17 11:46:00,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-17 11:46:00,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-17 11:46:00,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-17 11:46:00,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-17 11:46:00,176 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 201 [2021-11-17 11:46:00,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:46:00,177 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-17 11:46:00,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-17 11:46:00,177 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-17 11:46:00,177 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-17 11:46:00,179 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-17 11:46:00,180 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-17 11:46:00,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-17 11:46:00,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-17 11:47:55,769 WARN L227 SmtUtils]: Spent 1.91m on a formula simplification. DAG size of input: 89 DAG size of output: 87 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 11:51:26,967 WARN L227 SmtUtils]: Spent 3.52m on a formula simplification. DAG size of input: 131 DAG size of output: 129 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 11:53:22,117 WARN L227 SmtUtils]: Spent 1.92m on a formula simplification. DAG size of input: 89 DAG size of output: 87 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-17 11:55:18,728 WARN L227 SmtUtils]: Spent 1.94m on a formula simplification. DAG size of input: 89 DAG size of output: 87 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) Killed by 15