./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.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 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 01:30:03,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 01:30:03,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 01:30:03,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 01:30:03,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 01:30:03,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 01:30:03,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 01:30:03,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 01:30:03,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 01:30:03,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 01:30:03,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 01:30:03,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 01:30:03,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 01:30:03,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 01:30:03,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 01:30:03,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 01:30:03,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 01:30:03,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 01:30:03,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 01:30:03,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 01:30:03,574 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 01:30:03,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 01:30:03,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 01:30:03,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 01:30:03,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 01:30:03,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 01:30:03,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 01:30:03,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 01:30:03,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 01:30:03,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 01:30:03,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 01:30:03,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 01:30:03,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 01:30:03,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 01:30:03,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 01:30:03,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 01:30:03,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 01:30:03,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 01:30:03,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 01:30:03,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 01:30:03,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 01:30:03,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 01:30:03,592 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 01:30:03,613 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 01:30:03,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 01:30:03,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 01:30:03,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 01:30:03,614 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 01:30:03,614 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 01:30:03,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 01:30:03,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 01:30:03,615 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 01:30:03,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 01:30:03,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 01:30:03,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 01:30:03,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 01:30:03,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 01:30:03,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 01:30:03,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 01:30:03,617 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 01:30:03,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 01:30:03,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 01:30:03,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 01:30:03,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 01:30:03,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:30:03,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 01:30:03,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 01:30:03,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 01:30:03,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 01:30:03,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 01:30:03,618 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 01:30:03,619 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 01:30:03,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 01:30:03,619 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce [2022-07-23 01:30:03,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 01:30:03,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 01:30:03,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 01:30:03,885 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 01:30:03,886 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 01:30:03,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-07-23 01:30:03,945 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce3178b93/a037080130b04d0faaacc4e7e93cdee5/FLAG39112fd68 [2022-07-23 01:30:04,563 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 01:30:04,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-07-23 01:30:04,601 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce3178b93/a037080130b04d0faaacc4e7e93cdee5/FLAG39112fd68 [2022-07-23 01:30:04,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce3178b93/a037080130b04d0faaacc4e7e93cdee5 [2022-07-23 01:30:04,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 01:30:04,685 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 01:30:04,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 01:30:04,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 01:30:04,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 01:30:04,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:30:04" (1/1) ... [2022-07-23 01:30:04,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe6c1de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:04, skipping insertion in model container [2022-07-23 01:30:04,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:30:04" (1/1) ... [2022-07-23 01:30:04,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 01:30:04,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:30:06,503 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2022-07-23 01:30:06,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:30:06,604 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 01:30:06,862 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2022-07-23 01:30:06,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:30:06,986 INFO L208 MainTranslator]: Completed translation [2022-07-23 01:30:06,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:06 WrapperNode [2022-07-23 01:30:06,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 01:30:06,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 01:30:06,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 01:30:06,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 01:30:06,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:06" (1/1) ... [2022-07-23 01:30:07,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:06" (1/1) ... [2022-07-23 01:30:07,183 INFO L137 Inliner]: procedures = 262, calls = 1347, calls flagged for inlining = 121, calls inlined = 116, statements flattened = 3538 [2022-07-23 01:30:07,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 01:30:07,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 01:30:07,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 01:30:07,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 01:30:07,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:06" (1/1) ... [2022-07-23 01:30:07,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:06" (1/1) ... [2022-07-23 01:30:07,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:06" (1/1) ... [2022-07-23 01:30:07,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:06" (1/1) ... [2022-07-23 01:30:07,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:06" (1/1) ... [2022-07-23 01:30:07,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:06" (1/1) ... [2022-07-23 01:30:07,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:06" (1/1) ... [2022-07-23 01:30:07,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 01:30:07,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 01:30:07,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 01:30:07,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 01:30:07,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:06" (1/1) ... [2022-07-23 01:30:07,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:30:07,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:30:07,440 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) [2022-07-23 01:30:07,476 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 [2022-07-23 01:30:07,494 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2022-07-23 01:30:07,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2022-07-23 01:30:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-07-23 01:30:07,495 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-07-23 01:30:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 01:30:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 01:30:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-23 01:30:07,495 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-23 01:30:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2022-07-23 01:30:07,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2022-07-23 01:30:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 01:30:07,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 01:30:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 01:30:07,495 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 01:30:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset_after_host_error [2022-07-23 01:30:07,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset_after_host_error [2022-07-23 01:30:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-23 01:30:07,496 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-23 01:30:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-23 01:30:07,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-23 01:30:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 01:30:07,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 01:30:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-23 01:30:07,496 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-23 01:30:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2022-07-23 01:30:07,496 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2022-07-23 01:30:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-23 01:30:07,496 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-23 01:30:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 01:30:07,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 01:30:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-07-23 01:30:07,496 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-07-23 01:30:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-23 01:30:07,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-23 01:30:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2022-07-23 01:30:07,497 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2022-07-23 01:30:07,497 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-23 01:30:07,497 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-23 01:30:07,497 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-07-23 01:30:07,497 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-07-23 01:30:07,497 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2022-07-23 01:30:07,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2022-07-23 01:30:07,497 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-23 01:30:07,497 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-23 01:30:07,497 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 01:30:07,498 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 01:30:07,498 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-23 01:30:07,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-23 01:30:07,498 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-23 01:30:07,498 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-23 01:30:07,498 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-23 01:30:07,498 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-23 01:30:07,498 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2022-07-23 01:30:07,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2022-07-23 01:30:07,498 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2022-07-23 01:30:07,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2022-07-23 01:30:07,499 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-07-23 01:30:07,499 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-07-23 01:30:07,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 01:30:07,500 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-23 01:30:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-23 01:30:07,500 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-23 01:30:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-23 01:30:07,500 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-07-23 01:30:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-07-23 01:30:07,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 01:30:07,500 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-23 01:30:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-23 01:30:07,500 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-23 01:30:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-23 01:30:07,500 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-07-23 01:30:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-07-23 01:30:07,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-23 01:30:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-23 01:30:07,501 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2022-07-23 01:30:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2022-07-23 01:30:07,501 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-23 01:30:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-23 01:30:07,501 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2022-07-23 01:30:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2022-07-23 01:30:07,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 01:30:07,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 01:30:07,501 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2022-07-23 01:30:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2022-07-23 01:30:07,502 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-23 01:30:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-23 01:30:07,502 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-23 01:30:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-23 01:30:07,502 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-23 01:30:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-23 01:30:07,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-23 01:30:07,502 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-23 01:30:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-23 01:30:07,502 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-23 01:30:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-23 01:30:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2022-07-23 01:30:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2022-07-23 01:30:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2022-07-23 01:30:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2022-07-23 01:30:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2022-07-23 01:30:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2022-07-23 01:30:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-23 01:30:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioctl [2022-07-23 01:30:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioctl [2022-07-23 01:30:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-23 01:30:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-23 01:30:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 01:30:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-23 01:30:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-23 01:30:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-23 01:30:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-23 01:30:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 01:30:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 01:30:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-23 01:30:07,505 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-23 01:30:07,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-23 01:30:07,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-23 01:30:07,505 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-23 01:30:07,506 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-23 01:30:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-23 01:30:07,507 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-23 01:30:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 01:30:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-23 01:30:07,508 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-23 01:30:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-23 01:30:07,509 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-23 01:30:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-07-23 01:30:07,509 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-07-23 01:30:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 01:30:07,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 01:30:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2022-07-23 01:30:07,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2022-07-23 01:30:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-23 01:30:07,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-23 01:30:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2022-07-23 01:30:07,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2022-07-23 01:30:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 01:30:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2022-07-23 01:30:07,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2022-07-23 01:30:07,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-23 01:30:07,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-23 01:30:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2022-07-23 01:30:07,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2022-07-23 01:30:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 01:30:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-23 01:30:07,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-23 01:30:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 01:30:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-23 01:30:07,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-23 01:30:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-07-23 01:30:07,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-07-23 01:30:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2022-07-23 01:30:07,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2022-07-23 01:30:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-07-23 01:30:07,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-07-23 01:30:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2022-07-23 01:30:07,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2022-07-23 01:30:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-23 01:30:07,513 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-23 01:30:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-23 01:30:07,513 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-23 01:30:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2022-07-23 01:30:07,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2022-07-23 01:30:07,513 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-07-23 01:30:07,514 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-07-23 01:30:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2022-07-23 01:30:07,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2022-07-23 01:30:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-07-23 01:30:07,514 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-07-23 01:30:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_change_mtu [2022-07-23 01:30:07,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_change_mtu [2022-07-23 01:30:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-23 01:30:07,514 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-23 01:30:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 01:30:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2022-07-23 01:30:07,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2022-07-23 01:30:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2022-07-23 01:30:07,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2022-07-23 01:30:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-07-23 01:30:07,514 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-07-23 01:30:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 01:30:07,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 01:30:08,008 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 01:30:08,010 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 01:30:08,701 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 01:30:10,345 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 01:30:10,357 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 01:30:10,357 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 01:30:10,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:30:10 BoogieIcfgContainer [2022-07-23 01:30:10,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 01:30:10,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 01:30:10,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 01:30:10,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 01:30:10,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:30:04" (1/3) ... [2022-07-23 01:30:10,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b97ce22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:30:10, skipping insertion in model container [2022-07-23 01:30:10,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:30:06" (2/3) ... [2022-07-23 01:30:10,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b97ce22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:30:10, skipping insertion in model container [2022-07-23 01:30:10,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:30:10" (3/3) ... [2022-07-23 01:30:10,367 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-07-23 01:30:10,378 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 01:30:10,378 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 01:30:10,434 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 01:30:10,438 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@32e71bf1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@19ab783b [2022-07-23 01:30:10,438 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 01:30:10,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 1546 states, 1100 states have (on average 1.3836363636363636) internal successors, (1522), 1133 states have internal predecessors, (1522), 364 states have call successors, (364), 83 states have call predecessors, (364), 82 states have return successors, (356), 356 states have call predecessors, (356), 356 states have call successors, (356) [2022-07-23 01:30:10,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-23 01:30:10,464 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:30:10,465 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-07-23 01:30:10,466 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:30:10,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:30:10,471 INFO L85 PathProgramCache]: Analyzing trace with hash 598367255, now seen corresponding path program 1 times [2022-07-23 01:30:10,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:30:10,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134313392] [2022-07-23 01:30:10,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:30:10,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:30:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:10,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:30:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:10,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:10,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:10,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:30:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:11,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:11,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:11,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:30:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:11,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:11,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:11,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:30:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:11,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:11,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:11,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-23 01:30:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:11,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 01:30:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:11,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-23 01:30:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:11,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-23 01:30:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:11,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-23 01:30:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:11,202 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-23 01:30:11,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:30:11,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134313392] [2022-07-23 01:30:11,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134313392] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:30:11,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:30:11,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 01:30:11,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963158262] [2022-07-23 01:30:11,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:30:11,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 01:30:11,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:30:11,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 01:30:11,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 01:30:11,237 INFO L87 Difference]: Start difference. First operand has 1546 states, 1100 states have (on average 1.3836363636363636) internal successors, (1522), 1133 states have internal predecessors, (1522), 364 states have call successors, (364), 83 states have call predecessors, (364), 82 states have return successors, (356), 356 states have call predecessors, (356), 356 states have call successors, (356) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-23 01:30:17,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:30:18,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:30:18,985 INFO L93 Difference]: Finished difference Result 3348 states and 4998 transitions. [2022-07-23 01:30:18,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 01:30:18,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 122 [2022-07-23 01:30:18,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:30:19,008 INFO L225 Difference]: With dead ends: 3348 [2022-07-23 01:30:19,009 INFO L226 Difference]: Without dead ends: 1786 [2022-07-23 01:30:19,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-23 01:30:19,024 INFO L413 NwaCegarLoop]: 1936 mSDtfsCounter, 1298 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 1687 mSolverCounterSat, 1086 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 4446 SdHoareTripleChecker+Invalid, 2773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1086 IncrementalHoareTripleChecker+Valid, 1687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-07-23 01:30:19,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 4446 Invalid, 2773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1086 Valid, 1687 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-07-23 01:30:19,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2022-07-23 01:30:19,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1519. [2022-07-23 01:30:19,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1083 states have (on average 1.2917820867959373) internal successors, (1399), 1105 states have internal predecessors, (1399), 354 states have call successors, (354), 82 states have call predecessors, (354), 81 states have return successors, (353), 353 states have call predecessors, (353), 353 states have call successors, (353) [2022-07-23 01:30:19,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2106 transitions. [2022-07-23 01:30:19,180 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2106 transitions. Word has length 122 [2022-07-23 01:30:19,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:30:19,181 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 2106 transitions. [2022-07-23 01:30:19,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-23 01:30:19,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2106 transitions. [2022-07-23 01:30:19,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-23 01:30:19,202 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:30:19,203 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-07-23 01:30:19,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 01:30:19,203 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:30:19,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:30:19,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1367562046, now seen corresponding path program 1 times [2022-07-23 01:30:19,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:30:19,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609871448] [2022-07-23 01:30:19,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:30:19,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:30:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:19,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:30:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:19,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:19,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:19,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:30:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:19,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:19,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:19,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:30:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:19,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:19,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:19,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:30:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:19,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:19,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:19,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-23 01:30:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:19,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 01:30:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:19,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-23 01:30:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:19,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-23 01:30:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:19,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-23 01:30:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:19,562 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-23 01:30:19,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:30:19,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609871448] [2022-07-23 01:30:19,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609871448] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:30:19,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:30:19,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 01:30:19,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246318810] [2022-07-23 01:30:19,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:30:19,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 01:30:19,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:30:19,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 01:30:19,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:30:19,565 INFO L87 Difference]: Start difference. First operand 1519 states and 2106 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-23 01:30:26,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:30:34,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:30:37,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:30:37,129 INFO L93 Difference]: Finished difference Result 5052 states and 7155 transitions. [2022-07-23 01:30:37,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 01:30:37,136 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2022-07-23 01:30:37,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:30:37,156 INFO L225 Difference]: With dead ends: 5052 [2022-07-23 01:30:37,156 INFO L226 Difference]: Without dead ends: 3554 [2022-07-23 01:30:37,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-07-23 01:30:37,163 INFO L413 NwaCegarLoop]: 2369 mSDtfsCounter, 4527 mSDsluCounter, 6196 mSDsCounter, 0 mSdLazyCounter, 5406 mSolverCounterSat, 2395 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4743 SdHoareTripleChecker+Valid, 8565 SdHoareTripleChecker+Invalid, 7802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2395 IncrementalHoareTripleChecker+Valid, 5406 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2022-07-23 01:30:37,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4743 Valid, 8565 Invalid, 7802 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2395 Valid, 5406 Invalid, 1 Unknown, 0 Unchecked, 17.2s Time] [2022-07-23 01:30:37,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3554 states. [2022-07-23 01:30:37,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3554 to 3038. [2022-07-23 01:30:37,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3038 states, 2165 states have (on average 1.2914549653579677) internal successors, (2796), 2215 states have internal predecessors, (2796), 706 states have call successors, (706), 163 states have call predecessors, (706), 166 states have return successors, (727), 703 states have call predecessors, (727), 705 states have call successors, (727) [2022-07-23 01:30:37,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3038 states to 3038 states and 4229 transitions. [2022-07-23 01:30:37,293 INFO L78 Accepts]: Start accepts. Automaton has 3038 states and 4229 transitions. Word has length 121 [2022-07-23 01:30:37,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:30:37,295 INFO L495 AbstractCegarLoop]: Abstraction has 3038 states and 4229 transitions. [2022-07-23 01:30:37,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-23 01:30:37,295 INFO L276 IsEmpty]: Start isEmpty. Operand 3038 states and 4229 transitions. [2022-07-23 01:30:37,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-23 01:30:37,303 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:30:37,303 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-07-23 01:30:37,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 01:30:37,304 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:30:37,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:30:37,304 INFO L85 PathProgramCache]: Analyzing trace with hash -586623518, now seen corresponding path program 1 times [2022-07-23 01:30:37,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:30:37,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828055672] [2022-07-23 01:30:37,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:30:37,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:30:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:37,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:30:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:37,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:37,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:37,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:30:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:37,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:37,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:37,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:30:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:37,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:37,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:37,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:30:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:37,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:37,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:37,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-23 01:30:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:37,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 01:30:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:37,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-23 01:30:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:37,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-23 01:30:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:37,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 01:30:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:37,656 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-23 01:30:37,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:30:37,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828055672] [2022-07-23 01:30:37,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828055672] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:30:37,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:30:37,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 01:30:37,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537368195] [2022-07-23 01:30:37,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:30:37,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 01:30:37,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:30:37,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 01:30:37,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:30:37,660 INFO L87 Difference]: Start difference. First operand 3038 states and 4229 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-23 01:30:43,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:30:47,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:30:47,765 INFO L93 Difference]: Finished difference Result 10096 states and 14365 transitions. [2022-07-23 01:30:47,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 01:30:47,765 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 124 [2022-07-23 01:30:47,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:30:47,809 INFO L225 Difference]: With dead ends: 10096 [2022-07-23 01:30:47,809 INFO L226 Difference]: Without dead ends: 7079 [2022-07-23 01:30:47,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-07-23 01:30:47,826 INFO L413 NwaCegarLoop]: 2258 mSDtfsCounter, 5721 mSDsluCounter, 5010 mSDsCounter, 0 mSdLazyCounter, 4620 mSolverCounterSat, 3463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5937 SdHoareTripleChecker+Valid, 7268 SdHoareTripleChecker+Invalid, 8083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3463 IncrementalHoareTripleChecker+Valid, 4620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-07-23 01:30:47,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5937 Valid, 7268 Invalid, 8083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3463 Valid, 4620 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-07-23 01:30:47,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7079 states. [2022-07-23 01:30:47,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7079 to 6110. [2022-07-23 01:30:47,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6110 states, 4355 states have (on average 1.2911595866819747) internal successors, (5623), 4458 states have internal predecessors, (5623), 1414 states have call successors, (1414), 325 states have call predecessors, (1414), 340 states have return successors, (1523), 1414 states have call predecessors, (1523), 1413 states have call successors, (1523) [2022-07-23 01:30:48,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6110 states to 6110 states and 8560 transitions. [2022-07-23 01:30:48,024 INFO L78 Accepts]: Start accepts. Automaton has 6110 states and 8560 transitions. Word has length 124 [2022-07-23 01:30:48,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:30:48,026 INFO L495 AbstractCegarLoop]: Abstraction has 6110 states and 8560 transitions. [2022-07-23 01:30:48,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-23 01:30:48,026 INFO L276 IsEmpty]: Start isEmpty. Operand 6110 states and 8560 transitions. [2022-07-23 01:30:48,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-23 01:30:48,030 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:30:48,030 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-07-23 01:30:48,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 01:30:48,031 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:30:48,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:30:48,031 INFO L85 PathProgramCache]: Analyzing trace with hash 125232671, now seen corresponding path program 1 times [2022-07-23 01:30:48,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:30:48,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801547654] [2022-07-23 01:30:48,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:30:48,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:30:48,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:48,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:30:48,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:48,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:48,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:48,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:30:48,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:48,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:48,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:48,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:30:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:48,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:48,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:48,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:30:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:48,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:30:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:48,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:30:48,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:48,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-23 01:30:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:48,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 01:30:48,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:48,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-23 01:30:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:48,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-23 01:30:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:48,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-23 01:30:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:30:48,287 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-23 01:30:48,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:30:48,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801547654] [2022-07-23 01:30:48,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801547654] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:30:48,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:30:48,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 01:30:48,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491717245] [2022-07-23 01:30:48,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:30:48,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 01:30:48,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:30:48,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 01:30:48,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:30:48,290 INFO L87 Difference]: Start difference. First operand 6110 states and 8560 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-23 01:31:00,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:31:00,837 INFO L93 Difference]: Finished difference Result 20220 states and 28925 transitions. [2022-07-23 01:31:00,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 01:31:00,838 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 122 [2022-07-23 01:31:00,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:31:00,916 INFO L225 Difference]: With dead ends: 20220 [2022-07-23 01:31:00,917 INFO L226 Difference]: Without dead ends: 14131 [2022-07-23 01:31:00,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-07-23 01:31:00,951 INFO L413 NwaCegarLoop]: 2256 mSDtfsCounter, 4456 mSDsluCounter, 6727 mSDsCounter, 0 mSdLazyCounter, 6120 mSolverCounterSat, 2414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4672 SdHoareTripleChecker+Valid, 8983 SdHoareTripleChecker+Invalid, 8534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2414 IncrementalHoareTripleChecker+Valid, 6120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-07-23 01:31:00,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4672 Valid, 8983 Invalid, 8534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2414 Valid, 6120 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2022-07-23 01:31:01,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14131 states. [2022-07-23 01:31:01,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14131 to 12200. [2022-07-23 01:31:01,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12200 states, 8699 states have (on average 1.2903782043913092) internal successors, (11225), 8903 states have internal predecessors, (11225), 2819 states have call successors, (2819), 650 states have call predecessors, (2819), 681 states have return successors, (3126), 2822 states have call predecessors, (3126), 2818 states have call successors, (3126) [2022-07-23 01:31:01,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12200 states to 12200 states and 17170 transitions. [2022-07-23 01:31:01,460 INFO L78 Accepts]: Start accepts. Automaton has 12200 states and 17170 transitions. Word has length 122 [2022-07-23 01:31:01,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:31:01,460 INFO L495 AbstractCegarLoop]: Abstraction has 12200 states and 17170 transitions. [2022-07-23 01:31:01,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-23 01:31:01,461 INFO L276 IsEmpty]: Start isEmpty. Operand 12200 states and 17170 transitions. [2022-07-23 01:31:01,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-23 01:31:01,465 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:31:01,465 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-07-23 01:31:01,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 01:31:01,465 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:31:01,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:31:01,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1245682533, now seen corresponding path program 1 times [2022-07-23 01:31:01,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:31:01,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182074485] [2022-07-23 01:31:01,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:01,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:31:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:01,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:31:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:01,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:01,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:01,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:31:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:01,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:01,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:01,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:31:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:01,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:01,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:01,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:31:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:01,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:01,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:01,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-23 01:31:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:01,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 01:31:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:01,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-23 01:31:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:01,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-23 01:31:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:01,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-23 01:31:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:01,773 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-23 01:31:01,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:31:01,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182074485] [2022-07-23 01:31:01,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182074485] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:31:01,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:31:01,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 01:31:01,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693666251] [2022-07-23 01:31:01,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:31:01,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 01:31:01,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:31:01,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 01:31:01,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:31:01,776 INFO L87 Difference]: Start difference. First operand 12200 states and 17170 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-23 01:31:08,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:31:11,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:31:11,060 INFO L93 Difference]: Finished difference Result 39851 states and 57195 transitions. [2022-07-23 01:31:11,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 01:31:11,061 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 123 [2022-07-23 01:31:11,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:31:11,186 INFO L225 Difference]: With dead ends: 39851 [2022-07-23 01:31:11,186 INFO L226 Difference]: Without dead ends: 27672 [2022-07-23 01:31:11,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-07-23 01:31:11,236 INFO L413 NwaCegarLoop]: 2167 mSDtfsCounter, 5844 mSDsluCounter, 4868 mSDsCounter, 0 mSdLazyCounter, 4489 mSolverCounterSat, 3542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6061 SdHoareTripleChecker+Valid, 7035 SdHoareTripleChecker+Invalid, 8031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3542 IncrementalHoareTripleChecker+Valid, 4489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-07-23 01:31:11,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6061 Valid, 7035 Invalid, 8031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3542 Valid, 4489 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-07-23 01:31:11,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27672 states. [2022-07-23 01:31:12,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27672 to 24028. [2022-07-23 01:31:12,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24028 states, 17128 states have (on average 1.2884166277440448) internal successors, (22068), 17520 states have internal predecessors, (22068), 5545 states have call successors, (5545), 1291 states have call predecessors, (5545), 1354 states have return successors, (6350), 5556 states have call predecessors, (6350), 5544 states have call successors, (6350) [2022-07-23 01:31:12,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24028 states to 24028 states and 33963 transitions. [2022-07-23 01:31:12,357 INFO L78 Accepts]: Start accepts. Automaton has 24028 states and 33963 transitions. Word has length 123 [2022-07-23 01:31:12,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:31:12,372 INFO L495 AbstractCegarLoop]: Abstraction has 24028 states and 33963 transitions. [2022-07-23 01:31:12,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-23 01:31:12,372 INFO L276 IsEmpty]: Start isEmpty. Operand 24028 states and 33963 transitions. [2022-07-23 01:31:12,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-23 01:31:12,376 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:31:12,377 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:31:12,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-23 01:31:12,377 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:31:12,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:31:12,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1847397746, now seen corresponding path program 1 times [2022-07-23 01:31:12,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:31:12,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360737371] [2022-07-23 01:31:12,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:12,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:31:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:12,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:31:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:12,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:12,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:12,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:31:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:12,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:12,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:12,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:31:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:12,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:12,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:12,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:31:12,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:12,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:12,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:12,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:12,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:12,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-23 01:31:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:12,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 01:31:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:12,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-23 01:31:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:12,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-23 01:31:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:12,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-23 01:31:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:12,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-23 01:31:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:13,001 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-07-23 01:31:13,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:31:13,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360737371] [2022-07-23 01:31:13,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360737371] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 01:31:13,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657113771] [2022-07-23 01:31:13,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:13,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 01:31:13,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:31:13,004 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 01:31:13,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 01:31:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:13,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 2350 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 01:31:13,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:31:13,712 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-23 01:31:13,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:31:13,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657113771] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:31:13,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 01:31:13,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-07-23 01:31:13,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897364627] [2022-07-23 01:31:13,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:31:13,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 01:31:13,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:31:13,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 01:31:13,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-07-23 01:31:13,714 INFO L87 Difference]: Start difference. First operand 24028 states and 33963 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-23 01:31:14,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:31:14,749 INFO L93 Difference]: Finished difference Result 60044 states and 85011 transitions. [2022-07-23 01:31:14,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 01:31:14,749 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 134 [2022-07-23 01:31:14,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:31:15,053 INFO L225 Difference]: With dead ends: 60044 [2022-07-23 01:31:15,053 INFO L226 Difference]: Without dead ends: 36037 [2022-07-23 01:31:15,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-07-23 01:31:15,135 INFO L413 NwaCegarLoop]: 3306 mSDtfsCounter, 2132 mSDsluCounter, 15295 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 18601 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:31:15,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 18601 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:31:15,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36037 states. [2022-07-23 01:31:16,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36037 to 35888. [2022-07-23 01:31:16,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35888 states, 25589 states have (on average 1.288678729141428) internal successors, (32976), 26181 states have internal predecessors, (32976), 8267 states have call successors, (8267), 1928 states have call predecessors, (8267), 2031 states have return successors, (9658), 8282 states have call predecessors, (9658), 8266 states have call successors, (9658) [2022-07-23 01:31:16,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35888 states to 35888 states and 50901 transitions. [2022-07-23 01:31:16,862 INFO L78 Accepts]: Start accepts. Automaton has 35888 states and 50901 transitions. Word has length 134 [2022-07-23 01:31:16,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:31:16,863 INFO L495 AbstractCegarLoop]: Abstraction has 35888 states and 50901 transitions. [2022-07-23 01:31:16,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-23 01:31:16,863 INFO L276 IsEmpty]: Start isEmpty. Operand 35888 states and 50901 transitions. [2022-07-23 01:31:16,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-23 01:31:16,869 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:31:16,869 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:31:16,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-23 01:31:17,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-23 01:31:17,078 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:31:17,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:31:17,079 INFO L85 PathProgramCache]: Analyzing trace with hash -919878022, now seen corresponding path program 1 times [2022-07-23 01:31:17,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:31:17,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390924224] [2022-07-23 01:31:17,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:17,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:31:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:17,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:31:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:17,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:17,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:17,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:31:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:17,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:17,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:17,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:31:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:17,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:17,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:17,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:17,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:31:17,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:17,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:17,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:17,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-23 01:31:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:17,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 01:31:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:17,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-23 01:31:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:17,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-23 01:31:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:17,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 01:31:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:17,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-23 01:31:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:17,537 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-23 01:31:17,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:31:17,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390924224] [2022-07-23 01:31:17,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390924224] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 01:31:17,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059166891] [2022-07-23 01:31:17,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:17,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 01:31:17,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:31:17,540 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 01:31:17,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-23 01:31:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:18,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 2352 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 01:31:18,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:31:18,432 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-23 01:31:18,432 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:31:18,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059166891] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:31:18,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 01:31:18,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-07-23 01:31:18,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248883756] [2022-07-23 01:31:18,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:31:18,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 01:31:18,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:31:18,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 01:31:18,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-23 01:31:18,434 INFO L87 Difference]: Start difference. First operand 35888 states and 50901 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-23 01:31:19,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:31:19,804 INFO L93 Difference]: Finished difference Result 83817 states and 118933 transitions. [2022-07-23 01:31:19,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 01:31:19,805 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 135 [2022-07-23 01:31:19,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:31:20,040 INFO L225 Difference]: With dead ends: 83817 [2022-07-23 01:31:20,040 INFO L226 Difference]: Without dead ends: 47950 [2022-07-23 01:31:20,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-07-23 01:31:20,160 INFO L413 NwaCegarLoop]: 3428 mSDtfsCounter, 2132 mSDsluCounter, 15771 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 19199 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:31:20,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 19199 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:31:20,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47950 states. [2022-07-23 01:31:21,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47950 to 47780. [2022-07-23 01:31:21,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47780 states, 34070 states have (on average 1.288641033167009) internal successors, (43904), 34878 states have internal predecessors, (43904), 10989 states have call successors, (10989), 2565 states have call predecessors, (10989), 2720 states have return successors, (12978), 11004 states have call predecessors, (12978), 10988 states have call successors, (12978) [2022-07-23 01:31:21,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47780 states to 47780 states and 67871 transitions. [2022-07-23 01:31:21,795 INFO L78 Accepts]: Start accepts. Automaton has 47780 states and 67871 transitions. Word has length 135 [2022-07-23 01:31:21,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:31:21,796 INFO L495 AbstractCegarLoop]: Abstraction has 47780 states and 67871 transitions. [2022-07-23 01:31:21,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-23 01:31:21,796 INFO L276 IsEmpty]: Start isEmpty. Operand 47780 states and 67871 transitions. [2022-07-23 01:31:21,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-23 01:31:21,803 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:31:21,803 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:31:21,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-23 01:31:22,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-07-23 01:31:22,026 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:31:22,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:31:22,026 INFO L85 PathProgramCache]: Analyzing trace with hash -993924551, now seen corresponding path program 1 times [2022-07-23 01:31:22,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:31:22,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356583087] [2022-07-23 01:31:22,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:22,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:31:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:22,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:31:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:22,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:22,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:22,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:31:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:22,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:22,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:22,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:31:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:22,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:22,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:22,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:22,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:31:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:22,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:22,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:22,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-23 01:31:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:22,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 01:31:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:22,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-23 01:31:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:22,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-23 01:31:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:22,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-23 01:31:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:22,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-23 01:31:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:22,587 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-23 01:31:22,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:31:22,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356583087] [2022-07-23 01:31:22,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356583087] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 01:31:22,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805510833] [2022-07-23 01:31:22,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:22,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 01:31:22,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:31:22,589 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 01:31:22,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-23 01:31:23,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:23,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 2354 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 01:31:23,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:31:23,237 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-23 01:31:23,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:31:23,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805510833] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:31:23,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 01:31:23,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-07-23 01:31:23,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906443982] [2022-07-23 01:31:23,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:31:23,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 01:31:23,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:31:23,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 01:31:23,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-23 01:31:23,239 INFO L87 Difference]: Start difference. First operand 47780 states and 67871 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-23 01:31:25,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:31:25,070 INFO L93 Difference]: Finished difference Result 107590 states and 152855 transitions. [2022-07-23 01:31:25,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 01:31:25,074 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 136 [2022-07-23 01:31:25,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:31:25,366 INFO L225 Difference]: With dead ends: 107590 [2022-07-23 01:31:25,366 INFO L226 Difference]: Without dead ends: 59831 [2022-07-23 01:31:25,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-07-23 01:31:25,503 INFO L413 NwaCegarLoop]: 3433 mSDtfsCounter, 2132 mSDsluCounter, 15791 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 19224 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:31:25,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 19224 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 01:31:25,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59831 states. [2022-07-23 01:31:27,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59831 to 47802. [2022-07-23 01:31:27,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47802 states, 34086 states have (on average 1.288505544798451) internal successors, (43920), 34896 states have internal predecessors, (43920), 10989 states have call successors, (10989), 2565 states have call predecessors, (10989), 2726 states have return successors, (12987), 11008 states have call predecessors, (12987), 10988 states have call successors, (12987) [2022-07-23 01:31:27,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47802 states to 47802 states and 67896 transitions. [2022-07-23 01:31:27,233 INFO L78 Accepts]: Start accepts. Automaton has 47802 states and 67896 transitions. Word has length 136 [2022-07-23 01:31:27,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:31:27,233 INFO L495 AbstractCegarLoop]: Abstraction has 47802 states and 67896 transitions. [2022-07-23 01:31:27,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-23 01:31:27,234 INFO L276 IsEmpty]: Start isEmpty. Operand 47802 states and 67896 transitions. [2022-07-23 01:31:27,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-23 01:31:27,240 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:31:27,240 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:31:27,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-23 01:31:27,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 01:31:27,455 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:31:27,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:31:27,456 INFO L85 PathProgramCache]: Analyzing trace with hash 817756705, now seen corresponding path program 1 times [2022-07-23 01:31:27,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:31:27,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111082839] [2022-07-23 01:31:27,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:27,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:31:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:27,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:31:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:27,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:27,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:27,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:31:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:27,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:27,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:27,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:31:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:27,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:27,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:27,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:31:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:27,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:27,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:27,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-23 01:31:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:27,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 01:31:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:27,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-23 01:31:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:27,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-23 01:31:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:27,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-23 01:31:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:27,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-23 01:31:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:27,951 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-23 01:31:27,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:31:27,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111082839] [2022-07-23 01:31:27,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111082839] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 01:31:27,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568034470] [2022-07-23 01:31:27,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:27,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 01:31:27,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:31:27,954 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 01:31:27,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-23 01:31:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:28,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 2356 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 01:31:28,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:31:28,596 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-23 01:31:28,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 01:31:28,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568034470] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:31:28,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 01:31:28,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-07-23 01:31:28,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414039831] [2022-07-23 01:31:28,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:31:28,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 01:31:28,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:31:28,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 01:31:28,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-23 01:31:28,598 INFO L87 Difference]: Start difference. First operand 47802 states and 67896 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-23 01:31:30,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:31:30,135 INFO L93 Difference]: Finished difference Result 107620 states and 152888 transitions. [2022-07-23 01:31:30,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 01:31:30,135 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 137 [2022-07-23 01:31:30,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:31:30,410 INFO L225 Difference]: With dead ends: 107620 [2022-07-23 01:31:30,410 INFO L226 Difference]: Without dead ends: 59839 [2022-07-23 01:31:30,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-07-23 01:31:30,734 INFO L413 NwaCegarLoop]: 3433 mSDtfsCounter, 2132 mSDsluCounter, 15791 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 19224 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 01:31:30,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 19224 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 01:31:30,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59839 states. [2022-07-23 01:31:32,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59839 to 47815. [2022-07-23 01:31:32,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47815 states, 34096 states have (on average 1.2884209291412483) internal successors, (43930), 34905 states have internal predecessors, (43930), 10989 states have call successors, (10989), 2565 states have call predecessors, (10989), 2729 states have return successors, (12990), 11012 states have call predecessors, (12990), 10988 states have call successors, (12990) [2022-07-23 01:31:32,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47815 states to 47815 states and 67909 transitions. [2022-07-23 01:31:32,274 INFO L78 Accepts]: Start accepts. Automaton has 47815 states and 67909 transitions. Word has length 137 [2022-07-23 01:31:32,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:31:32,274 INFO L495 AbstractCegarLoop]: Abstraction has 47815 states and 67909 transitions. [2022-07-23 01:31:32,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-23 01:31:32,274 INFO L276 IsEmpty]: Start isEmpty. Operand 47815 states and 67909 transitions. [2022-07-23 01:31:32,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-23 01:31:32,282 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:31:32,282 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:31:32,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-23 01:31:32,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 01:31:32,495 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:31:32,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:31:32,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1449154588, now seen corresponding path program 1 times [2022-07-23 01:31:32,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:31:32,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036322992] [2022-07-23 01:31:32,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:32,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:31:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:31:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:31:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:31:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:31:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-23 01:31:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 01:31:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-23 01:31:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 01:31:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 01:31:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 01:31:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 01:31:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-23 01:31:32,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-23 01:31:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 01:31:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:32,756 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-07-23 01:31:32,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:31:32,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036322992] [2022-07-23 01:31:32,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036322992] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:31:32,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:31:32,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 01:31:32,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275146944] [2022-07-23 01:31:32,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:31:32,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 01:31:32,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:31:32,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 01:31:32,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 01:31:32,758 INFO L87 Difference]: Start difference. First operand 47815 states and 67909 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 01:31:43,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:31:43,632 INFO L93 Difference]: Finished difference Result 73578 states and 106295 transitions. [2022-07-23 01:31:43,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 01:31:43,632 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 156 [2022-07-23 01:31:43,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:31:43,930 INFO L225 Difference]: With dead ends: 73578 [2022-07-23 01:31:43,931 INFO L226 Difference]: Without dead ends: 73575 [2022-07-23 01:31:43,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-23 01:31:43,967 INFO L413 NwaCegarLoop]: 1993 mSDtfsCounter, 4368 mSDsluCounter, 2558 mSDsCounter, 0 mSdLazyCounter, 4313 mSolverCounterSat, 2693 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4588 SdHoareTripleChecker+Valid, 4551 SdHoareTripleChecker+Invalid, 7006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2693 IncrementalHoareTripleChecker+Valid, 4313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-07-23 01:31:43,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4588 Valid, 4551 Invalid, 7006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2693 Valid, 4313 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-07-23 01:31:44,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73575 states. [2022-07-23 01:31:46,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73575 to 60252. [2022-07-23 01:31:46,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60252 states, 42697 states have (on average 1.2734149940276835) internal successors, (54371), 43535 states have internal predecessors, (54371), 13768 states have call successors, (13768), 3622 states have call predecessors, (13768), 3786 states have return successors, (15769), 13791 states have call predecessors, (15769), 13767 states have call successors, (15769) [2022-07-23 01:31:46,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60252 states to 60252 states and 83908 transitions. [2022-07-23 01:31:46,609 INFO L78 Accepts]: Start accepts. Automaton has 60252 states and 83908 transitions. Word has length 156 [2022-07-23 01:31:46,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:31:46,610 INFO L495 AbstractCegarLoop]: Abstraction has 60252 states and 83908 transitions. [2022-07-23 01:31:46,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-23 01:31:46,610 INFO L276 IsEmpty]: Start isEmpty. Operand 60252 states and 83908 transitions. [2022-07-23 01:31:46,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-23 01:31:46,627 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:31:46,628 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:31:46,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-23 01:31:46,628 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:31:46,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:31:46,628 INFO L85 PathProgramCache]: Analyzing trace with hash -517310490, now seen corresponding path program 1 times [2022-07-23 01:31:46,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:31:46,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318494785] [2022-07-23 01:31:46,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:46,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:31:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:46,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:31:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:46,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:46,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:46,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:31:46,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:46,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:46,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:46,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:31:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:46,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:46,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:46,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:31:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:46,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:46,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:31:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:46,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-23 01:31:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:46,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 01:31:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:46,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-23 01:31:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:46,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-23 01:31:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:47,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-23 01:31:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:47,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-23 01:31:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:47,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-23 01:31:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:47,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 01:31:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:47,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:31:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:47,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 01:31:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:47,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 01:31:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:47,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-23 01:31:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:47,086 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-23 01:31:47,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:31:47,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318494785] [2022-07-23 01:31:47,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318494785] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 01:31:47,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333046674] [2022-07-23 01:31:47,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:31:47,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 01:31:47,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:31:47,088 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 01:31:47,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-23 01:31:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:31:47,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 2703 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-23 01:31:47,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:31:47,851 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-23 01:31:47,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:31:48,057 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-07-23 01:31:48,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333046674] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:31:48,057 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 01:31:48,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2022-07-23 01:31:48,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072870261] [2022-07-23 01:31:48,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 01:31:48,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-23 01:31:48,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:31:48,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-23 01:31:48,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2022-07-23 01:31:48,059 INFO L87 Difference]: Start difference. First operand 60252 states and 83908 transitions. Second operand has 24 states, 24 states have (on average 6.5) internal successors, (156), 15 states have internal predecessors, (156), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2022-07-23 01:33:18,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:33:24,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:33:25,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:33:32,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:33:32,892 INFO L93 Difference]: Finished difference Result 186928 states and 265269 transitions. [2022-07-23 01:33:32,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-07-23 01:33:32,893 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.5) internal successors, (156), 15 states have internal predecessors, (156), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) Word has length 183 [2022-07-23 01:33:32,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:33:33,524 INFO L225 Difference]: With dead ends: 186928 [2022-07-23 01:33:33,524 INFO L226 Difference]: Without dead ends: 126501 [2022-07-23 01:33:33,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 420 SyntacticMatches, 1 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7602 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=3129, Invalid=17177, Unknown=0, NotChecked=0, Total=20306 [2022-07-23 01:33:33,722 INFO L413 NwaCegarLoop]: 4196 mSDtfsCounter, 23479 mSDsluCounter, 23828 mSDsCounter, 0 mSdLazyCounter, 77625 mSolverCounterSat, 18828 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23964 SdHoareTripleChecker+Valid, 28024 SdHoareTripleChecker+Invalid, 96454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 18828 IncrementalHoareTripleChecker+Valid, 77625 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 85.3s IncrementalHoareTripleChecker+Time [2022-07-23 01:33:33,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23964 Valid, 28024 Invalid, 96454 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [18828 Valid, 77625 Invalid, 1 Unknown, 0 Unchecked, 85.3s Time] [2022-07-23 01:33:33,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126501 states. [2022-07-23 01:33:39,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126501 to 103764. [2022-07-23 01:33:39,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103764 states, 73465 states have (on average 1.272510719390186) internal successors, (93485), 74893 states have internal predecessors, (93485), 23793 states have call successors, (23793), 6255 states have call predecessors, (23793), 6505 states have return successors, (27018), 23799 states have call predecessors, (27018), 23792 states have call successors, (27018) [2022-07-23 01:33:40,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103764 states to 103764 states and 144296 transitions. [2022-07-23 01:33:40,441 INFO L78 Accepts]: Start accepts. Automaton has 103764 states and 144296 transitions. Word has length 183 [2022-07-23 01:33:40,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:33:40,442 INFO L495 AbstractCegarLoop]: Abstraction has 103764 states and 144296 transitions. [2022-07-23 01:33:40,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.5) internal successors, (156), 15 states have internal predecessors, (156), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2022-07-23 01:33:40,442 INFO L276 IsEmpty]: Start isEmpty. Operand 103764 states and 144296 transitions. [2022-07-23 01:33:40,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-23 01:33:40,464 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:33:40,464 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:33:40,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-07-23 01:33:40,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-23 01:33:40,680 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:33:40,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:33:40,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1871150683, now seen corresponding path program 1 times [2022-07-23 01:33:40,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:33:40,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550341749] [2022-07-23 01:33:40,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:33:40,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:33:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:40,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:33:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:40,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:33:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:40,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:33:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:40,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:33:40,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:40,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:33:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:40,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:33:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:40,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:33:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:40,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:33:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:40,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:33:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:40,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:33:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:40,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:33:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:40,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:33:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:40,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-23 01:33:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:40,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 01:33:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:40,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-23 01:33:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:40,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-23 01:33:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:41,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-23 01:33:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:41,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-23 01:33:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:41,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-23 01:33:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:41,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-23 01:33:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:41,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:33:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:41,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-23 01:33:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:41,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-23 01:33:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:41,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-23 01:33:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:41,066 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-23 01:33:41,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:33:41,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550341749] [2022-07-23 01:33:41,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550341749] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 01:33:41,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85607904] [2022-07-23 01:33:41,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:33:41,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 01:33:41,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:33:41,068 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 01:33:41,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-23 01:33:41,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:33:41,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 2705 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-23 01:33:41,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 01:33:41,806 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-23 01:33:41,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 01:33:42,265 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-07-23 01:33:42,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85607904] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 01:33:42,266 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 01:33:42,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2022-07-23 01:33:42,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621203612] [2022-07-23 01:33:42,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 01:33:42,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-23 01:33:42,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:33:42,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-23 01:33:42,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2022-07-23 01:33:42,267 INFO L87 Difference]: Start difference. First operand 103764 states and 144296 transitions. Second operand has 24 states, 24 states have (on average 6.583333333333333) internal successors, (158), 15 states have internal predecessors, (158), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35)