./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 ff03de63 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-dev-ff03de6 [2021-12-21 16:44:45,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:44:45,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:44:45,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:44:45,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:44:45,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:44:45,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:44:45,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:44:45,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:44:45,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:44:45,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:44:45,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:44:45,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:44:45,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:44:45,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:44:45,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:44:45,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:44:45,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:44:45,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:44:45,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:44:45,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:44:45,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:44:45,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:44:45,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:44:45,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:44:45,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:44:45,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:44:45,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:44:45,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:44:45,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:44:45,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:44:45,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:44:45,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:44:45,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:44:45,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:44:45,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:44:45,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:44:45,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:44:45,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:44:45,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:44:45,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:44:45,163 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:44:45,197 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:44:45,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:44:45,198 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:44:45,198 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:44:45,199 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:44:45,199 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:44:45,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:44:45,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:44:45,200 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:44:45,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:44:45,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:44:45,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:44:45,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:44:45,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:44:45,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:44:45,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:44:45,202 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:44:45,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:44:45,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:44:45,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:44:45,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:44:45,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:44:45,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:44:45,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:44:45,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:44:45,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:44:45,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:44:45,206 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:44:45,206 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:44:45,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:44:45,207 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:44:45,207 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce [2021-12-21 16:44:45,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:44:45,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:44:45,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:44:45,465 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:44:45,466 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:44:45,473 INFO L432 ainManager$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 [2021-12-21 16:44:45,535 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41ff05a6f/c9edfe79265347bd925e6b4e03b829b9/FLAGa14df925d [2021-12-21 16:44:46,205 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:44:46,205 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 [2021-12-21 16:44:46,249 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41ff05a6f/c9edfe79265347bd925e6b4e03b829b9/FLAGa14df925d [2021-12-21 16:44:46,550 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41ff05a6f/c9edfe79265347bd925e6b4e03b829b9 [2021-12-21 16:44:46,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:44:46,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:44:46,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:44:46,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:44:46,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:44:46,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:44:46" (1/1) ... [2021-12-21 16:44:46,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c01e20a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:46, skipping insertion in model container [2021-12-21 16:44:46,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:44:46" (1/1) ... [2021-12-21 16:44:46,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:44:46,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:44:48,090 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] [2021-12-21 16:44:48,141 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:44:48,178 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:44:48,483 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] [2021-12-21 16:44:48,494 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:44:48,606 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:44:48,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:48 WrapperNode [2021-12-21 16:44:48,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:44:48,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:44:48,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:44:48,609 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:44:48,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:48" (1/1) ... [2021-12-21 16:44:48,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:48" (1/1) ... [2021-12-21 16:44:48,829 INFO L137 Inliner]: procedures = 262, calls = 1347, calls flagged for inlining = 121, calls inlined = 116, statements flattened = 3303 [2021-12-21 16:44:48,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:44:48,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:44:48,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:44:48,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:44:48,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:48" (1/1) ... [2021-12-21 16:44:48,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:48" (1/1) ... [2021-12-21 16:44:48,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:48" (1/1) ... [2021-12-21 16:44:48,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:48" (1/1) ... [2021-12-21 16:44:48,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:48" (1/1) ... [2021-12-21 16:44:48,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:48" (1/1) ... [2021-12-21 16:44:48,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:48" (1/1) ... [2021-12-21 16:44:48,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:44:48,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:44:48,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:44:48,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:44:48,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:48" (1/1) ... [2021-12-21 16:44:48,999 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:44:49,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:44:49,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 16:44:49,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 16:44:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2021-12-21 16:44:49,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2021-12-21 16:44:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-12-21 16:44:49,058 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-12-21 16:44:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:44:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:44:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-21 16:44:49,059 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-21 16:44:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2021-12-21 16:44:49,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2021-12-21 16:44:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 16:44:49,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 16:44:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 16:44:49,059 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 16:44:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset_after_host_error [2021-12-21 16:44:49,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset_after_host_error [2021-12-21 16:44:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-21 16:44:49,060 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-21 16:44:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-21 16:44:49,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-21 16:44:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:44:49,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:44:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-21 16:44:49,061 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-21 16:44:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2021-12-21 16:44:49,061 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2021-12-21 16:44:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 16:44:49,062 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 16:44:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:44:49,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:44:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-21 16:44:49,062 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-21 16:44:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-21 16:44:49,063 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-21 16:44:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2021-12-21 16:44:49,063 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2021-12-21 16:44:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-21 16:44:49,063 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-21 16:44:49,064 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-12-21 16:44:49,064 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-12-21 16:44:49,064 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2021-12-21 16:44:49,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2021-12-21 16:44:49,064 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-12-21 16:44:49,064 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-12-21 16:44:49,064 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 16:44:49,065 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 16:44:49,065 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-21 16:44:49,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-21 16:44:49,065 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-21 16:44:49,065 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-21 16:44:49,066 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-21 16:44:49,066 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-21 16:44:49,066 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2021-12-21 16:44:49,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2021-12-21 16:44:49,066 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2021-12-21 16:44:49,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2021-12-21 16:44:49,067 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2021-12-21 16:44:49,068 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2021-12-21 16:44:49,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:44:49,068 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-21 16:44:49,069 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-21 16:44:49,069 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-12-21 16:44:49,069 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-12-21 16:44:49,069 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-12-21 16:44:49,070 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-12-21 16:44:49,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:44:49,070 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-21 16:44:49,070 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-21 16:44:49,070 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-21 16:44:49,070 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-21 16:44:49,071 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-21 16:44:49,071 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-21 16:44:49,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-21 16:44:49,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-21 16:44:49,072 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2021-12-21 16:44:49,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2021-12-21 16:44:49,072 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-21 16:44:49,072 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-21 16:44:49,072 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2021-12-21 16:44:49,072 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2021-12-21 16:44:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:44:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:44:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2021-12-21 16:44:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2021-12-21 16:44:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-21 16:44:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-21 16:44:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-21 16:44:49,074 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-21 16:44:49,074 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-21 16:44:49,074 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-21 16:44:49,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:44:49,075 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-21 16:44:49,075 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-21 16:44:49,075 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 16:44:49,075 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 16:44:49,076 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2021-12-21 16:44:49,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2021-12-21 16:44:49,076 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2021-12-21 16:44:49,076 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2021-12-21 16:44:49,076 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2021-12-21 16:44:49,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2021-12-21 16:44:49,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:44:49,077 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioctl [2021-12-21 16:44:49,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioctl [2021-12-21 16:44:49,077 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-21 16:44:49,077 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-21 16:44:49,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:44:49,078 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-21 16:44:49,078 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-21 16:44:49,078 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-21 16:44:49,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-21 16:44:49,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 16:44:49,079 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 16:44:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-21 16:44:49,079 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-21 16:44:49,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-21 16:44:49,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-21 16:44:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-21 16:44:49,080 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-21 16:44:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-21 16:44:49,082 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-21 16:44:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:44:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-21 16:44:49,083 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-21 16:44:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-21 16:44:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-21 16:44:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-12-21 16:44:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-12-21 16:44:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:44:49,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:44:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2021-12-21 16:44:49,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2021-12-21 16:44:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-21 16:44:49,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-21 16:44:49,090 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2021-12-21 16:44:49,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2021-12-21 16:44:49,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:44:49,090 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2021-12-21 16:44:49,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2021-12-21 16:44:49,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-21 16:44:49,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-21 16:44:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2021-12-21 16:44:49,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2021-12-21 16:44:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:44:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 16:44:49,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 16:44:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:44:49,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-21 16:44:49,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-21 16:44:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-12-21 16:44:49,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-12-21 16:44:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2021-12-21 16:44:49,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2021-12-21 16:44:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-12-21 16:44:49,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-12-21 16:44:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2021-12-21 16:44:49,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2021-12-21 16:44:49,092 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-21 16:44:49,093 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-21 16:44:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-21 16:44:49,093 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-21 16:44:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2021-12-21 16:44:49,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2021-12-21 16:44:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-21 16:44:49,093 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-21 16:44:49,093 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2021-12-21 16:44:49,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2021-12-21 16:44:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-12-21 16:44:49,094 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-12-21 16:44:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_change_mtu [2021-12-21 16:44:49,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_change_mtu [2021-12-21 16:44:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-21 16:44:49,094 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-21 16:44:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:44:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2021-12-21 16:44:49,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2021-12-21 16:44:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2021-12-21 16:44:49,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2021-12-21 16:44:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-21 16:44:49,095 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-21 16:44:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:44:49,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:44:49,698 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:44:49,701 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:44:50,284 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 16:44:52,569 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:44:52,591 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:44:52,591 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 16:44:52,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:44:52 BoogieIcfgContainer [2021-12-21 16:44:52,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:44:52,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:44:52,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:44:52,601 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:44:52,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:44:46" (1/3) ... [2021-12-21 16:44:52,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335d978a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:44:52, skipping insertion in model container [2021-12-21 16:44:52,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:44:48" (2/3) ... [2021-12-21 16:44:52,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335d978a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:44:52, skipping insertion in model container [2021-12-21 16:44:52,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:44:52" (3/3) ... [2021-12-21 16:44:52,603 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2021-12-21 16:44:52,608 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:44:52,608 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:44:52,655 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:44:52,661 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 16:44:52,661 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:44:52,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 1386 states, 940 states have (on average 1.2957446808510638) internal successors, (1218), 973 states have internal predecessors, (1218), 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) [2021-12-21 16:44:52,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-21 16:44:52,727 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:44:52,728 INFO L514 BasicCegarLoop]: 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] [2021-12-21 16:44:52,728 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:44:52,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:44:52,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1357410998, now seen corresponding path program 1 times [2021-12-21 16:44:52,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:44:52,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276622922] [2021-12-21 16:44:52,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:44:52,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:44:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:53,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:44:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:53,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:53,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:53,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:44:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:53,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:53,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:53,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:44:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:53,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:53,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:53,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:44:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:53,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:53,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:53,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:44:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:53,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-21 16:44:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:53,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 16:44:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:53,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-21 16:44:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:53,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-21 16:44:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:53,500 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-12-21 16:44:53,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:44:53,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276622922] [2021-12-21 16:44:53,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276622922] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:44:53,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:44:53,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:44:53,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529177156] [2021-12-21 16:44:53,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:44:53,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:44:53,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:44:53,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:44:53,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:44:53,546 INFO L87 Difference]: Start difference. First operand has 1386 states, 940 states have (on average 1.2957446808510638) internal successors, (1218), 973 states have internal predecessors, (1218), 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 9.4) internal successors, (47), 2 states have internal predecessors, (47), 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) [2021-12-21 16:44:59,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:44:59,308 INFO L93 Difference]: Finished difference Result 2992 states and 4288 transitions. [2021-12-21 16:44:59,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 16:44:59,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 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 121 [2021-12-21 16:44:59,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:44:59,345 INFO L225 Difference]: With dead ends: 2992 [2021-12-21 16:44:59,346 INFO L226 Difference]: Without dead ends: 1590 [2021-12-21 16:44:59,361 INFO L932 BasicCegarLoop]: 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 [2021-12-21 16:44:59,366 INFO L933 BasicCegarLoop]: 1731 mSDtfsCounter, 1036 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 1084 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 2217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1084 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-21 16:44:59,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1040 Valid, 3224 Invalid, 2217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1084 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2021-12-21 16:44:59,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2021-12-21 16:44:59,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 1359. [2021-12-21 16:44:59,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 923 states have (on average 1.2838569880823403) internal successors, (1185), 945 states have internal predecessors, (1185), 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) [2021-12-21 16:44:59,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1892 transitions. [2021-12-21 16:44:59,537 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1892 transitions. Word has length 121 [2021-12-21 16:44:59,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:44:59,537 INFO L470 AbstractCegarLoop]: Abstraction has 1359 states and 1892 transitions. [2021-12-21 16:44:59,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 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) [2021-12-21 16:44:59,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1892 transitions. [2021-12-21 16:44:59,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-21 16:44:59,545 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:44:59,546 INFO L514 BasicCegarLoop]: 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] [2021-12-21 16:44:59,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:44:59,546 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:44:59,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:44:59,547 INFO L85 PathProgramCache]: Analyzing trace with hash -874608722, now seen corresponding path program 1 times [2021-12-21 16:44:59,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:44:59,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623259656] [2021-12-21 16:44:59,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:44:59,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:44:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:59,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:44:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:59,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:59,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:59,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:44:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:59,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:59,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:59,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:44:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:59,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:59,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:59,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:44:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:59,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:59,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:59,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:44:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:59,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-21 16:44:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 16:45:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-21 16:45:00,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-21 16:45:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:00,030 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-12-21 16:45:00,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:45:00,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623259656] [2021-12-21 16:45:00,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623259656] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:45:00,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:45:00,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 16:45:00,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618142087] [2021-12-21 16:45:00,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:45:00,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 16:45:00,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:45:00,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 16:45:00,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:45:00,066 INFO L87 Difference]: Start difference. First operand 1359 states and 1892 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) [2021-12-21 16:45:11,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:45:11,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:45:11,988 INFO L93 Difference]: Finished difference Result 4502 states and 6412 transitions. [2021-12-21 16:45:11,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 16:45:11,989 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 [2021-12-21 16:45:11,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:45:12,008 INFO L225 Difference]: With dead ends: 4502 [2021-12-21 16:45:12,008 INFO L226 Difference]: Without dead ends: 3164 [2021-12-21 16:45:12,014 INFO L932 BasicCegarLoop]: 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 [2021-12-21 16:45:12,015 INFO L933 BasicCegarLoop]: 2042 mSDtfsCounter, 3668 mSDsluCounter, 6500 mSDsCounter, 0 mSdLazyCounter, 3797 mSolverCounterSat, 2424 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3884 SdHoareTripleChecker+Valid, 8542 SdHoareTripleChecker+Invalid, 6222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2424 IncrementalHoareTripleChecker+Valid, 3797 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2021-12-21 16:45:12,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3884 Valid, 8542 Invalid, 6222 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2424 Valid, 3797 Invalid, 1 Unknown, 0 Unchecked, 11.5s Time] [2021-12-21 16:45:12,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3164 states. [2021-12-21 16:45:12,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3164 to 2724. [2021-12-21 16:45:12,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2724 states, 1851 states have (on average 1.283090221501891) internal successors, (2375), 1897 states have internal predecessors, (2375), 706 states have call successors, (706), 163 states have call predecessors, (706), 166 states have return successors, (727), 707 states have call predecessors, (727), 705 states have call successors, (727) [2021-12-21 16:45:12,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2724 states to 2724 states and 3808 transitions. [2021-12-21 16:45:12,128 INFO L78 Accepts]: Start accepts. Automaton has 2724 states and 3808 transitions. Word has length 121 [2021-12-21 16:45:12,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:45:12,129 INFO L470 AbstractCegarLoop]: Abstraction has 2724 states and 3808 transitions. [2021-12-21 16:45:12,129 INFO L471 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) [2021-12-21 16:45:12,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2724 states and 3808 transitions. [2021-12-21 16:45:12,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-21 16:45:12,132 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:45:12,132 INFO L514 BasicCegarLoop]: 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] [2021-12-21 16:45:12,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:45:12,133 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:45:12,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:45:12,134 INFO L85 PathProgramCache]: Analyzing trace with hash -967648419, now seen corresponding path program 1 times [2021-12-21 16:45:12,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:45:12,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699009939] [2021-12-21 16:45:12,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:12,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:45:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:12,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:45:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:12,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:12,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:12,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:45:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:12,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:12,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:12,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:45:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:12,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:12,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:12,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:45:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:12,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:12,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:12,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:45:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:12,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-21 16:45:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:12,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 16:45:12,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:12,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 16:45:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:12,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-21 16:45:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:12,480 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-12-21 16:45:12,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:45:12,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699009939] [2021-12-21 16:45:12,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699009939] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:45:12,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:45:12,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 16:45:12,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227150495] [2021-12-21 16:45:12,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:45:12,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 16:45:12,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:45:12,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 16:45:12,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:45:12,486 INFO L87 Difference]: Start difference. First operand 2724 states and 3808 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) [2021-12-21 16:45:19,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:45:23,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:45:23,758 INFO L93 Difference]: Finished difference Result 9009 states and 12892 transitions. [2021-12-21 16:45:23,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 16:45:23,759 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 [2021-12-21 16:45:23,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:45:23,796 INFO L225 Difference]: With dead ends: 9009 [2021-12-21 16:45:23,797 INFO L226 Difference]: Without dead ends: 6306 [2021-12-21 16:45:23,812 INFO L932 BasicCegarLoop]: 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 [2021-12-21 16:45:23,813 INFO L933 BasicCegarLoop]: 1971 mSDtfsCounter, 4797 mSDsluCounter, 5630 mSDsCounter, 0 mSdLazyCounter, 2983 mSolverCounterSat, 3532 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5013 SdHoareTripleChecker+Valid, 7601 SdHoareTripleChecker+Invalid, 6515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3532 IncrementalHoareTripleChecker+Valid, 2983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-12-21 16:45:23,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5013 Valid, 7601 Invalid, 6515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3532 Valid, 2983 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2021-12-21 16:45:23,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6306 states. [2021-12-21 16:45:24,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6306 to 5487. [2021-12-21 16:45:24,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 3730 states have (on average 1.2823056300268096) internal successors, (4783), 3826 states have internal predecessors, (4783), 1415 states have call successors, (1415), 326 states have call predecessors, (1415), 341 states have return successors, (1524), 1422 states have call predecessors, (1524), 1414 states have call successors, (1524) [2021-12-21 16:45:24,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 7722 transitions. [2021-12-21 16:45:24,100 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 7722 transitions. Word has length 122 [2021-12-21 16:45:24,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:45:24,101 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 7722 transitions. [2021-12-21 16:45:24,101 INFO L471 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) [2021-12-21 16:45:24,101 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 7722 transitions. [2021-12-21 16:45:24,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-21 16:45:24,105 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:45:24,105 INFO L514 BasicCegarLoop]: 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] [2021-12-21 16:45:24,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 16:45:24,105 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:45:24,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:45:24,107 INFO L85 PathProgramCache]: Analyzing trace with hash -292898560, now seen corresponding path program 1 times [2021-12-21 16:45:24,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:45:24,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066540658] [2021-12-21 16:45:24,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:24,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:45:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:45:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:45:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:45:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:45:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:45:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-21 16:45:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 16:45:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-21 16:45:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 16:45:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:24,393 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-12-21 16:45:24,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:45:24,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066540658] [2021-12-21 16:45:24,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066540658] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:45:24,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:45:24,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 16:45:24,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137000966] [2021-12-21 16:45:24,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:45:24,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 16:45:24,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:45:24,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 16:45:24,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:45:24,396 INFO L87 Difference]: Start difference. First operand 5487 states and 7722 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 4 states have internal predecessors, (46), 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) [2021-12-21 16:45:32,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:45:33,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:45:35,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:45:42,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:45:42,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:45:42,464 INFO L93 Difference]: Finished difference Result 18056 states and 25991 transitions. [2021-12-21 16:45:42,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 16:45:42,464 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 4 states have internal predecessors, (46), 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 120 [2021-12-21 16:45:42,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:45:42,533 INFO L225 Difference]: With dead ends: 18056 [2021-12-21 16:45:42,533 INFO L226 Difference]: Without dead ends: 12590 [2021-12-21 16:45:42,557 INFO L932 BasicCegarLoop]: 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 [2021-12-21 16:45:42,558 INFO L933 BasicCegarLoop]: 2201 mSDtfsCounter, 3662 mSDsluCounter, 6860 mSDsCounter, 0 mSdLazyCounter, 3940 mSolverCounterSat, 2350 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3878 SdHoareTripleChecker+Valid, 9061 SdHoareTripleChecker+Invalid, 6291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2350 IncrementalHoareTripleChecker+Valid, 3940 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2021-12-21 16:45:42,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3878 Valid, 9061 Invalid, 6291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2350 Valid, 3940 Invalid, 1 Unknown, 0 Unchecked, 17.6s Time] [2021-12-21 16:45:42,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12590 states. [2021-12-21 16:45:43,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12590 to 10919. [2021-12-21 16:45:43,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10919 states, 7418 states have (on average 1.28215152332165) internal successors, (9511), 7622 states have internal predecessors, (9511), 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) [2021-12-21 16:45:43,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10919 states to 10919 states and 15456 transitions. [2021-12-21 16:45:43,120 INFO L78 Accepts]: Start accepts. Automaton has 10919 states and 15456 transitions. Word has length 120 [2021-12-21 16:45:43,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:45:43,120 INFO L470 AbstractCegarLoop]: Abstraction has 10919 states and 15456 transitions. [2021-12-21 16:45:43,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 4 states have internal predecessors, (46), 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) [2021-12-21 16:45:43,121 INFO L276 IsEmpty]: Start isEmpty. Operand 10919 states and 15456 transitions. [2021-12-21 16:45:43,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-21 16:45:43,127 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:45:43,127 INFO L514 BasicCegarLoop]: 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] [2021-12-21 16:45:43,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 16:45:43,128 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:45:43,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:45:43,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1203194411, now seen corresponding path program 1 times [2021-12-21 16:45:43,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:45:43,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238762841] [2021-12-21 16:45:43,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:45:43,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:45:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:43,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:45:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:43,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:43,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:43,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:45:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:43,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:43,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:43,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:45:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:43,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:43,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:43,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:45:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:43,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:45:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:43,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:45:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:43,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:45:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:43,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-21 16:45:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:43,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-21 16:45:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:43,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-21 16:45:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:43,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 16:45:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:45:43,420 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-12-21 16:45:43,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:45:43,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238762841] [2021-12-21 16:45:43,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238762841] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:45:43,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:45:43,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 16:45:43,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417539924] [2021-12-21 16:45:43,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:45:43,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 16:45:43,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:45:43,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 16:45:43,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:45:43,423 INFO L87 Difference]: Start difference. First operand 10919 states and 15456 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)