./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--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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--wireless--rtl818x--rtl8180--rtl818x_pci.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 73e11d79da89f19153d89e853a8d4a3607f25d95ae579da9c148a59839e48ce3 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 08:56:04,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 08:56:04,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 08:56:04,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 08:56:04,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 08:56:04,493 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 08:56:04,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 08:56:04,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 08:56:04,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 08:56:04,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 08:56:04,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 08:56:04,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 08:56:04,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 08:56:04,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 08:56:04,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 08:56:04,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 08:56:04,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 08:56:04,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 08:56:04,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 08:56:04,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 08:56:04,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 08:56:04,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 08:56:04,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 08:56:04,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 08:56:04,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 08:56:04,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 08:56:04,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 08:56:04,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 08:56:04,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 08:56:04,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 08:56:04,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 08:56:04,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 08:56:04,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 08:56:04,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 08:56:04,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 08:56:04,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 08:56:04,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 08:56:04,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 08:56:04,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 08:56:04,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 08:56:04,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 08:56:04,540 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 08:56:04,569 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 08:56:04,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 08:56:04,570 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 08:56:04,570 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 08:56:04,571 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 08:56:04,571 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 08:56:04,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 08:56:04,572 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 08:56:04,572 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 08:56:04,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 08:56:04,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 08:56:04,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 08:56:04,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 08:56:04,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 08:56:04,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 08:56:04,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 08:56:04,574 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 08:56:04,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 08:56:04,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 08:56:04,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 08:56:04,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 08:56:04,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 08:56:04,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 08:56:04,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 08:56:04,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 08:56:04,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 08:56:04,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 08:56:04,577 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 08:56:04,578 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 08:56:04,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 08:56:04,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 08:56:04,578 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73e11d79da89f19153d89e853a8d4a3607f25d95ae579da9c148a59839e48ce3 [2021-12-18 08:56:04,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 08:56:04,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 08:56:04,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 08:56:04,776 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 08:56:04,776 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 08:56:04,777 INFO L432 ainManager$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--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2021-12-18 08:56:04,827 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a1c18875/64edbb8124904355b356bc1e4a9afafe/FLAG3df2332c1 [2021-12-18 08:56:05,682 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 08:56:05,683 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--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2021-12-18 08:56:05,748 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a1c18875/64edbb8124904355b356bc1e4a9afafe/FLAG3df2332c1 [2021-12-18 08:56:05,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a1c18875/64edbb8124904355b356bc1e4a9afafe [2021-12-18 08:56:05,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 08:56:05,837 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 08:56:05,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 08:56:05,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 08:56:05,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 08:56:05,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 08:56:05" (1/1) ... [2021-12-18 08:56:05,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ed5e923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:56:05, skipping insertion in model container [2021-12-18 08:56:05,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 08:56:05" (1/1) ... [2021-12-18 08:56:05,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 08:56:05,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 08:56:09,141 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--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[468644,468657] [2021-12-18 08:56:09,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 08:56:09,325 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 08:56:09,679 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--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[468644,468657] [2021-12-18 08:56:09,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 08:56:09,841 INFO L208 MainTranslator]: Completed translation [2021-12-18 08:56:09,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:56:09 WrapperNode [2021-12-18 08:56:09,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 08:56:09,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 08:56:09,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 08:56:09,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 08:56:09,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:56:09" (1/1) ... [2021-12-18 08:56:09,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:56:09" (1/1) ... [2021-12-18 08:56:10,183 INFO L137 Inliner]: procedures = 440, calls = 4514, calls flagged for inlining = 181, calls inlined = 178, statements flattened = 8251 [2021-12-18 08:56:10,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 08:56:10,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 08:56:10,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 08:56:10,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 08:56:10,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:56:09" (1/1) ... [2021-12-18 08:56:10,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:56:09" (1/1) ... [2021-12-18 08:56:10,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:56:09" (1/1) ... [2021-12-18 08:56:10,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:56:09" (1/1) ... [2021-12-18 08:56:10,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:56:09" (1/1) ... [2021-12-18 08:56:10,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:56:09" (1/1) ... [2021-12-18 08:56:10,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:56:09" (1/1) ... [2021-12-18 08:56:10,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 08:56:10,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 08:56:10,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 08:56:10,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 08:56:10,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:56:09" (1/1) ... [2021-12-18 08:56:10,620 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 08:56:10,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:56:10,642 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) [2021-12-18 08:56:10,672 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 [2021-12-18 08:56:10,685 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2021-12-18 08:56:10,686 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2021-12-18 08:56:10,686 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2021-12-18 08:56:10,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2021-12-18 08:56:10,686 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2021-12-18 08:56:10,686 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2021-12-18 08:56:10,686 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2021-12-18 08:56:10,687 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2021-12-18 08:56:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-18 08:56:10,687 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-18 08:56:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 08:56:10,687 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 08:56:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-18 08:56:10,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-18 08:56:10,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 08:56:10,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 08:56:10,688 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2021-12-18 08:56:10,688 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2021-12-18 08:56:10,688 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2021-12-18 08:56:10,688 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2021-12-18 08:56:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_writereg [2021-12-18 08:56:10,689 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_writereg [2021-12-18 08:56:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-12-18 08:56:10,689 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-12-18 08:56:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_generic_frame_duration [2021-12-18 08:56:10,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_generic_frame_duration [2021-12-18 08:56:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2021-12-18 08:56:10,690 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2021-12-18 08:56:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 08:56:10,690 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 08:56:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2021-12-18 08:56:10,690 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2021-12-18 08:56:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-18 08:56:10,691 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-18 08:56:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 08:56:10,691 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 08:56:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2021-12-18 08:56:10,692 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2021-12-18 08:56:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2021-12-18 08:56:10,692 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2021-12-18 08:56:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2021-12-18 08:56:10,692 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2021-12-18 08:56:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2021-12-18 08:56:10,693 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2021-12-18 08:56:10,693 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2021-12-18 08:56:10,693 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2021-12-18 08:56:10,693 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2021-12-18 08:56:10,693 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2021-12-18 08:56:10,694 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 08:56:10,694 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 08:56:10,694 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-18 08:56:10,694 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-18 08:56:10,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 08:56:10,694 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2021-12-18 08:56:10,695 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2021-12-18 08:56:10,695 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2021-12-18 08:56:10,695 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2021-12-18 08:56:10,696 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 08:56:10,696 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 08:56:10,697 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2021-12-18 08:56:10,697 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2021-12-18 08:56:10,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 08:56:10,697 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2021-12-18 08:56:10,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2021-12-18 08:56:10,698 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 08:56:10,698 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 08:56:10,698 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-18 08:56:10,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-18 08:56:10,698 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2021-12-18 08:56:10,698 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2021-12-18 08:56:10,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 08:56:10,699 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2021-12-18 08:56:10,699 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2021-12-18 08:56:10,699 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2021-12-18 08:56:10,699 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2021-12-18 08:56:10,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 08:56:10,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_10 [2021-12-18 08:56:10,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_10 [2021-12-18 08:56:10,700 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 08:56:10,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 08:56:10,701 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2021-12-18 08:56:10,701 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2021-12-18 08:56:10,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 08:56:10,701 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 08:56:10,701 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2021-12-18 08:56:10,701 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2021-12-18 08:56:10,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-18 08:56:10,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-18 08:56:10,702 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-12-18 08:56:10,702 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-12-18 08:56:10,702 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2021-12-18 08:56:10,703 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2021-12-18 08:56:10,703 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2021-12-18 08:56:10,703 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2021-12-18 08:56:10,703 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-18 08:56:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-18 08:56:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-18 08:56:10,704 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-18 08:56:10,704 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2021-12-18 08:56:10,705 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2021-12-18 08:56:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2021-12-18 08:56:10,705 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2021-12-18 08:56:10,705 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2021-12-18 08:56:10,705 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2021-12-18 08:56:10,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-18 08:56:10,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-18 08:56:10,706 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-12-18 08:56:10,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-12-18 08:56:10,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 08:56:10,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 08:56:10,706 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-18 08:56:10,707 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-18 08:56:10,707 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-12-18 08:56:10,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-12-18 08:56:10,707 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2021-12-18 08:56:10,708 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2021-12-18 08:56:10,708 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 08:56:10,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 08:56:10,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 08:56:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 08:56:10,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 08:56:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_10 [2021-12-18 08:56:10,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_10 [2021-12-18 08:56:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2021-12-18 08:56:10,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2021-12-18 08:56:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_init [2021-12-18 08:56:10,713 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_init [2021-12-18 08:56:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2021-12-18 08:56:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2021-12-18 08:56:10,719 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2021-12-18 08:56:10,719 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2021-12-18 08:56:10,719 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam2 [2021-12-18 08:56:10,719 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam2 [2021-12-18 08:56:10,719 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2021-12-18 08:56:10,719 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2021-12-18 08:56:10,719 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2021-12-18 08:56:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2021-12-18 08:56:10,720 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2021-12-18 08:56:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2021-12-18 08:56:10,720 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_basic_rates [2021-12-18 08:56:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_basic_rates [2021-12-18 08:56:10,720 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-12-18 08:56:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-12-18 08:56:10,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 08:56:10,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 08:56:10,721 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-18 08:56:10,721 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-18 08:56:10,721 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2021-12-18 08:56:10,721 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2021-12-18 08:56:10,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 08:56:10,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 08:56:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_tx [2021-12-18 08:56:10,722 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_tx [2021-12-18 08:56:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 08:56:10,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 08:56:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2021-12-18 08:56:10,722 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2021-12-18 08:56:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-18 08:56:10,723 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-18 08:56:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_5 [2021-12-18 08:56:10,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_5 [2021-12-18 08:56:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_4 [2021-12-18 08:56:10,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_4 [2021-12-18 08:56:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_9 [2021-12-18 08:56:10,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_9 [2021-12-18 08:56:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2021-12-18 08:56:10,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2021-12-18 08:56:10,724 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2021-12-18 08:56:10,724 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2021-12-18 08:56:10,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_7 [2021-12-18 08:56:10,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_7 [2021-12-18 08:56:10,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2021-12-18 08:56:10,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2021-12-18 08:56:10,725 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2021-12-18 08:56:10,725 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2021-12-18 08:56:10,725 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2021-12-18 08:56:10,725 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2021-12-18 08:56:10,725 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_set_channel [2021-12-18 08:56:10,726 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_set_channel [2021-12-18 08:56:10,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 08:56:10,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 08:56:10,726 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-18 08:56:10,726 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-18 08:56:10,726 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-18 08:56:10,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-18 08:56:10,727 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2021-12-18 08:56:10,727 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2021-12-18 08:56:10,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 08:56:10,727 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 08:56:10,727 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2021-12-18 08:56:10,727 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2021-12-18 08:56:10,727 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 08:56:10,728 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 08:56:10,728 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_int_disable [2021-12-18 08:56:10,728 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_int_disable [2021-12-18 08:56:10,728 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2021-12-18 08:56:10,728 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2021-12-18 08:56:10,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 08:56:10,728 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2021-12-18 08:56:10,728 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2021-12-18 08:56:10,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 08:56:10,729 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_stop [2021-12-18 08:56:10,729 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_stop [2021-12-18 08:56:10,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-18 08:56:10,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-18 08:56:10,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 08:56:10,729 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_init [2021-12-18 08:56:10,730 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_init [2021-12-18 08:56:10,730 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-18 08:56:10,730 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-18 08:56:10,730 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-18 08:56:10,730 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-18 08:56:10,730 INFO L130 BoogieDeclarations]: Found specification of procedure _ieee80211_hw_set [2021-12-18 08:56:10,730 INFO L138 BoogieDeclarations]: Found implementation of procedure _ieee80211_hw_set [2021-12-18 08:56:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2021-12-18 08:56:10,731 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2021-12-18 08:56:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2021-12-18 08:56:10,731 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2021-12-18 08:56:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_readreg [2021-12-18 08:56:10,731 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_readreg [2021-12-18 08:56:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_beacon_work [2021-12-18 08:56:10,732 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_beacon_work [2021-12-18 08:56:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2021-12-18 08:56:10,732 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2021-12-18 08:56:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-12-18 08:56:10,732 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-12-18 08:56:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2021-12-18 08:56:10,732 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2021-12-18 08:56:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_rx [2021-12-18 08:56:10,733 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_rx [2021-12-18 08:56:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2021-12-18 08:56:10,733 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2021-12-18 08:56:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 08:56:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2021-12-18 08:56:10,733 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2021-12-18 08:56:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-18 08:56:10,734 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-18 08:56:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 08:56:10,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 08:56:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2021-12-18 08:56:10,734 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2021-12-18 08:56:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2021-12-18 08:56:10,734 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2021-12-18 08:56:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_conf_ac_parm [2021-12-18 08:56:10,735 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_conf_ac_parm [2021-12-18 08:56:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-18 08:56:10,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-18 08:56:10,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-18 08:56:10,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-18 08:56:10,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-12-18 08:56:10,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-12-18 08:56:10,739 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_stop [2021-12-18 08:56:10,739 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_stop [2021-12-18 08:56:10,740 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-12-18 08:56:10,740 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-12-18 08:56:10,741 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2021-12-18 08:56:10,741 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2021-12-18 08:56:10,741 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-18 08:56:10,741 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-18 08:56:10,741 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-18 08:56:10,742 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-18 08:56:10,742 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2021-12-18 08:56:10,742 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2021-12-18 08:56:10,742 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2021-12-18 08:56:10,742 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2021-12-18 08:56:10,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 08:56:10,742 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2021-12-18 08:56:10,742 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2021-12-18 08:56:10,743 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_three_wire_io [2021-12-18 08:56:10,743 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_three_wire_io [2021-12-18 08:56:10,743 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2021-12-18 08:56:10,743 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2021-12-18 08:56:10,743 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2021-12-18 08:56:10,743 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2021-12-18 08:56:10,743 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-12-18 08:56:10,743 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-12-18 08:56:11,742 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 08:56:11,745 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 08:56:12,081 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 08:56:18,539 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 08:56:18,577 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 08:56:18,577 INFO L301 CfgBuilder]: Removed 78 assume(true) statements. [2021-12-18 08:56:18,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 08:56:18 BoogieIcfgContainer [2021-12-18 08:56:18,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 08:56:18,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 08:56:18,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 08:56:18,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 08:56:18,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 08:56:05" (1/3) ... [2021-12-18 08:56:18,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd160ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 08:56:18, skipping insertion in model container [2021-12-18 08:56:18,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:56:09" (2/3) ... [2021-12-18 08:56:18,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd160ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 08:56:18, skipping insertion in model container [2021-12-18 08:56:18,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 08:56:18" (3/3) ... [2021-12-18 08:56:18,593 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2021-12-18 08:56:18,597 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 08:56:18,597 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 08:56:18,659 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 08:56:18,671 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 [2021-12-18 08:56:18,671 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 08:56:18,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 3746 states, 2156 states have (on average 1.312152133580705) internal successors, (2829), 2311 states have internal predecessors, (2829), 1537 states have call successors, (1537), 130 states have call predecessors, (1537), 129 states have return successors, (1522), 1485 states have call predecessors, (1522), 1522 states have call successors, (1522) [2021-12-18 08:56:18,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-12-18 08:56:18,789 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:56:18,789 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:56:18,790 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:56:18,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:56:18,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1156017786, now seen corresponding path program 1 times [2021-12-18 08:56:18,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:56:18,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642017030] [2021-12-18 08:56:18,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:56:18,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:56:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:56:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:56:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:56:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:56:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 08:56:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 08:56:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 08:56:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:19,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 08:56:19,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:19,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 08:56:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 08:56:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 08:56:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 08:56:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-18 08:56:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 08:56:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 08:56:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 08:56:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-18 08:56:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 08:56:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:20,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2021-12-18 08:56:20,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:56:20,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642017030] [2021-12-18 08:56:20,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642017030] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:56:20,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:56:20,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 08:56:20,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989644535] [2021-12-18 08:56:20,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:56:20,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 08:56:20,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:56:20,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 08:56:20,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 08:56:20,401 INFO L87 Difference]: Start difference. First operand has 3746 states, 2156 states have (on average 1.312152133580705) internal successors, (2829), 2311 states have internal predecessors, (2829), 1537 states have call successors, (1537), 130 states have call predecessors, (1537), 129 states have return successors, (1522), 1485 states have call predecessors, (1522), 1522 states have call successors, (1522) Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 08:56:25,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:56:28,423 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 [] [2021-12-18 08:56:34,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:56:34,022 INFO L93 Difference]: Finished difference Result 7459 states and 11796 transitions. [2021-12-18 08:56:34,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 08:56:34,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 279 [2021-12-18 08:56:34,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:56:34,078 INFO L225 Difference]: With dead ends: 7459 [2021-12-18 08:56:34,078 INFO L226 Difference]: Without dead ends: 3690 [2021-12-18 08:56:34,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-18 08:56:34,115 INFO L933 BasicCegarLoop]: 4322 mSDtfsCounter, 2210 mSDsluCounter, 4087 mSDsCounter, 0 mSdLazyCounter, 3782 mSolverCounterSat, 4642 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 8409 SdHoareTripleChecker+Invalid, 8424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4642 IncrementalHoareTripleChecker+Valid, 3782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2021-12-18 08:56:34,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2221 Valid, 8409 Invalid, 8424 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4642 Valid, 3782 Invalid, 0 Unknown, 0 Unchecked, 13.1s Time] [2021-12-18 08:56:34,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3690 states. [2021-12-18 08:56:34,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3690 to 3484. [2021-12-18 08:56:34,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3484 states, 1911 states have (on average 1.3003663003663004) internal successors, (2485), 1980 states have internal predecessors, (2485), 1444 states have call successors, (1444), 129 states have call predecessors, (1444), 128 states have return successors, (1443), 1406 states have call predecessors, (1443), 1443 states have call successors, (1443) [2021-12-18 08:56:34,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3484 states to 3484 states and 5372 transitions. [2021-12-18 08:56:34,472 INFO L78 Accepts]: Start accepts. Automaton has 3484 states and 5372 transitions. Word has length 279 [2021-12-18 08:56:34,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:56:34,473 INFO L470 AbstractCegarLoop]: Abstraction has 3484 states and 5372 transitions. [2021-12-18 08:56:34,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 08:56:34,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3484 states and 5372 transitions. [2021-12-18 08:56:34,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-12-18 08:56:34,484 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:56:34,484 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:56:34,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 08:56:34,485 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:56:34,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:56:34,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1870882658, now seen corresponding path program 1 times [2021-12-18 08:56:34,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:56:34,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012981911] [2021-12-18 08:56:34,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:56:34,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:56:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:34,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:56:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:34,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:34,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:34,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:56:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:34,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:34,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:34,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:34,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 08:56:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:34,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:34,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:34,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:56:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:34,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:35,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 08:56:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:35,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 08:56:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 08:56:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 08:56:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 08:56:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 08:56:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 08:56:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 08:56:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:56:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-18 08:56:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 08:56:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 08:56:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 08:56:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-18 08:56:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 08:56:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:56:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:56:35,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2021-12-18 08:56:35,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:56:35,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012981911] [2021-12-18 08:56:35,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012981911] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:56:35,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:56:35,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 08:56:35,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885400426] [2021-12-18 08:56:35,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:56:35,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 08:56:35,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:56:35,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 08:56:35,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 08:56:35,507 INFO L87 Difference]: Start difference. First operand 3484 states and 5372 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2021-12-18 08:56:38,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 08:56:40,366 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 [] [2021-12-18 08:56:59,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:56:59,663 INFO L93 Difference]: Finished difference Result 10162 states and 15752 transitions. [2021-12-18 08:56:59,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 08:56:59,664 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 279 [2021-12-18 08:56:59,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:56:59,712 INFO L225 Difference]: With dead ends: 10162 [2021-12-18 08:56:59,712 INFO L226 Difference]: Without dead ends: 6718 [2021-12-18 08:56:59,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:56:59,735 INFO L933 BasicCegarLoop]: 5742 mSDtfsCounter, 6026 mSDsluCounter, 8929 mSDsCounter, 0 mSdLazyCounter, 8078 mSolverCounterSat, 9727 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6406 SdHoareTripleChecker+Valid, 14671 SdHoareTripleChecker+Invalid, 17806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9727 IncrementalHoareTripleChecker+Valid, 8078 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.5s IncrementalHoareTripleChecker+Time [2021-12-18 08:56:59,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6406 Valid, 14671 Invalid, 17806 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9727 Valid, 8078 Invalid, 1 Unknown, 0 Unchecked, 23.5s Time] [2021-12-18 08:56:59,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6718 states. [2021-12-18 08:57:00,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6718 to 6356. [2021-12-18 08:57:00,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6356 states, 3434 states have (on average 1.2999417588817705) internal successors, (4464), 3551 states have internal predecessors, (4464), 2676 states have call successors, (2676), 244 states have call predecessors, (2676), 245 states have return successors, (2684), 2622 states have call predecessors, (2684), 2675 states have call successors, (2684) [2021-12-18 08:57:00,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6356 states to 6356 states and 9824 transitions. [2021-12-18 08:57:00,176 INFO L78 Accepts]: Start accepts. Automaton has 6356 states and 9824 transitions. Word has length 279 [2021-12-18 08:57:00,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:57:00,179 INFO L470 AbstractCegarLoop]: Abstraction has 6356 states and 9824 transitions. [2021-12-18 08:57:00,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2021-12-18 08:57:00,180 INFO L276 IsEmpty]: Start isEmpty. Operand 6356 states and 9824 transitions. [2021-12-18 08:57:00,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-12-18 08:57:00,193 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:57:00,193 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:57:00,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 08:57:00,195 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:57:00,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:57:00,196 INFO L85 PathProgramCache]: Analyzing trace with hash -724855501, now seen corresponding path program 1 times [2021-12-18 08:57:00,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:57:00,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438611317] [2021-12-18 08:57:00,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:57:00,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:57:00,352 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 08:57:00,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [547878972] [2021-12-18 08:57:00,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:57:00,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:57:00,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:57:00,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 08:57:00,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 08:57:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:57:01,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 5905 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 08:57:01,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:57:02,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2021-12-18 08:57:02,344 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:57:02,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:57:02,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438611317] [2021-12-18 08:57:02,344 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 08:57:02,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547878972] [2021-12-18 08:57:02,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547878972] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:57:02,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:57:02,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 08:57:02,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937836763] [2021-12-18 08:57:02,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:57:02,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 08:57:02,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:57:02,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 08:57:02,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 08:57:02,347 INFO L87 Difference]: Start difference. First operand 6356 states and 9824 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 08:57:02,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:57:02,669 INFO L93 Difference]: Finished difference Result 12696 states and 19624 transitions. [2021-12-18 08:57:02,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 08:57:02,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 330 [2021-12-18 08:57:02,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:57:02,720 INFO L225 Difference]: With dead ends: 12696 [2021-12-18 08:57:02,721 INFO L226 Difference]: Without dead ends: 6380 [2021-12-18 08:57:02,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 08:57:02,770 INFO L933 BasicCegarLoop]: 5375 mSDtfsCounter, 5297 mSDsluCounter, 10729 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5301 SdHoareTripleChecker+Valid, 16104 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 08:57:02,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5301 Valid, 16104 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 08:57:02,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6380 states. [2021-12-18 08:57:03,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6380 to 6374. [2021-12-18 08:57:03,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6374 states, 3450 states have (on average 1.2997101449275363) internal successors, (4484), 3567 states have internal predecessors, (4484), 2676 states have call successors, (2676), 246 states have call predecessors, (2676), 247 states have return successors, (2684), 2622 states have call predecessors, (2684), 2675 states have call successors, (2684) [2021-12-18 08:57:03,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6374 states to 6374 states and 9844 transitions. [2021-12-18 08:57:03,237 INFO L78 Accepts]: Start accepts. Automaton has 6374 states and 9844 transitions. Word has length 330 [2021-12-18 08:57:03,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:57:03,239 INFO L470 AbstractCegarLoop]: Abstraction has 6374 states and 9844 transitions. [2021-12-18 08:57:03,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 08:57:03,239 INFO L276 IsEmpty]: Start isEmpty. Operand 6374 states and 9844 transitions. [2021-12-18 08:57:03,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-12-18 08:57:03,248 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:57:03,248 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:57:03,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-18 08:57:03,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:57:03,464 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:57:03,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:57:03,464 INFO L85 PathProgramCache]: Analyzing trace with hash -36668360, now seen corresponding path program 1 times [2021-12-18 08:57:03,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:57:03,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650415655] [2021-12-18 08:57:03,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:57:03,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:57:03,621 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 08:57:03,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1338538891] [2021-12-18 08:57:03,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:57:03,622 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:57:03,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:57:03,623 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 08:57:03,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 08:57:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:57:05,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 5917 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 08:57:05,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:57:05,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2021-12-18 08:57:05,695 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:57:05,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:57:05,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650415655] [2021-12-18 08:57:05,696 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 08:57:05,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338538891] [2021-12-18 08:57:05,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338538891] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:57:05,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:57:05,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 08:57:05,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372999786] [2021-12-18 08:57:05,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:57:05,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 08:57:05,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:57:05,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 08:57:05,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 08:57:05,697 INFO L87 Difference]: Start difference. First operand 6374 states and 9844 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 08:57:06,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:57:06,214 INFO L93 Difference]: Finished difference Result 19072 states and 29474 transitions. [2021-12-18 08:57:06,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 08:57:06,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 327 [2021-12-18 08:57:06,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:57:06,332 INFO L225 Difference]: With dead ends: 19072 [2021-12-18 08:57:06,332 INFO L226 Difference]: Without dead ends: 12738 [2021-12-18 08:57:06,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 08:57:06,383 INFO L933 BasicCegarLoop]: 6850 mSDtfsCounter, 5303 mSDsluCounter, 18990 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5307 SdHoareTripleChecker+Valid, 25840 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 08:57:06,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5307 Valid, 25840 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 08:57:06,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12738 states. [2021-12-18 08:57:07,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12738 to 12723. [2021-12-18 08:57:07,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12723 states, 6893 states have (on average 1.3005948063252575) internal successors, (8965), 7127 states have internal predecessors, (8965), 5333 states have call successors, (5333), 493 states have call predecessors, (5333), 496 states have return successors, (5362), 5226 states have call predecessors, (5362), 5332 states have call successors, (5362) [2021-12-18 08:57:07,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12723 states to 12723 states and 19660 transitions. [2021-12-18 08:57:07,312 INFO L78 Accepts]: Start accepts. Automaton has 12723 states and 19660 transitions. Word has length 327 [2021-12-18 08:57:07,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:57:07,315 INFO L470 AbstractCegarLoop]: Abstraction has 12723 states and 19660 transitions. [2021-12-18 08:57:07,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 08:57:07,316 INFO L276 IsEmpty]: Start isEmpty. Operand 12723 states and 19660 transitions. [2021-12-18 08:57:07,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-12-18 08:57:07,324 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:57:07,324 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:57:07,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-18 08:57:07,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-18 08:57:07,548 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:57:07,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:57:07,548 INFO L85 PathProgramCache]: Analyzing trace with hash 635654646, now seen corresponding path program 1 times [2021-12-18 08:57:07,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:57:07,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470877888] [2021-12-18 08:57:07,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:57:07,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:57:07,697 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 08:57:07,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [111317333] [2021-12-18 08:57:07,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:57:07,698 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:57:07,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:57:07,699 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 08:57:07,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 08:57:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:57:08,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 5901 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 08:57:08,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:57:09,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2021-12-18 08:57:09,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:57:09,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:57:09,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470877888] [2021-12-18 08:57:09,573 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 08:57:09,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111317333] [2021-12-18 08:57:09,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111317333] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:57:09,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:57:09,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 08:57:09,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664777441] [2021-12-18 08:57:09,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:57:09,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 08:57:09,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:57:09,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 08:57:09,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 08:57:09,575 INFO L87 Difference]: Start difference. First operand 12723 states and 19660 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 08:57:10,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:57:10,519 INFO L93 Difference]: Finished difference Result 38173 states and 58972 transitions. [2021-12-18 08:57:10,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 08:57:10,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 328 [2021-12-18 08:57:10,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:57:10,710 INFO L225 Difference]: With dead ends: 38173 [2021-12-18 08:57:10,711 INFO L226 Difference]: Without dead ends: 25490 [2021-12-18 08:57:10,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 08:57:10,808 INFO L933 BasicCegarLoop]: 7026 mSDtfsCounter, 5310 mSDsluCounter, 19358 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5314 SdHoareTripleChecker+Valid, 26384 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 08:57:10,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5314 Valid, 26384 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 08:57:10,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25490 states. [2021-12-18 08:57:12,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25490 to 25383. [2021-12-18 08:57:12,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25383 states, 13747 states have (on average 1.3014475885647778) internal successors, (17891), 14227 states have internal predecessors, (17891), 10643 states have call successors, (10643), 985 states have call predecessors, (10643), 992 states have return successors, (10702), 10418 states have call predecessors, (10702), 10642 states have call successors, (10702) [2021-12-18 08:57:12,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25383 states to 25383 states and 39236 transitions. [2021-12-18 08:57:12,954 INFO L78 Accepts]: Start accepts. Automaton has 25383 states and 39236 transitions. Word has length 328 [2021-12-18 08:57:12,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:57:12,955 INFO L470 AbstractCegarLoop]: Abstraction has 25383 states and 39236 transitions. [2021-12-18 08:57:12,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 08:57:12,955 INFO L276 IsEmpty]: Start isEmpty. Operand 25383 states and 39236 transitions. [2021-12-18 08:57:12,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-12-18 08:57:12,966 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:57:12,966 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:57:13,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-18 08:57:13,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:57:13,180 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:57:13,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:57:13,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1424307076, now seen corresponding path program 1 times [2021-12-18 08:57:13,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:57:13,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119802566] [2021-12-18 08:57:13,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:57:13,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:57:13,338 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 08:57:13,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1204892335] [2021-12-18 08:57:13,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:57:13,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:57:13,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:57:13,340 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 08:57:13,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 08:57:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:57:14,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 5919 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 08:57:14,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:57:15,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2021-12-18 08:57:15,217 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:57:15,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:57:15,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119802566] [2021-12-18 08:57:15,217 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 08:57:15,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204892335] [2021-12-18 08:57:15,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204892335] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:57:15,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:57:15,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 08:57:15,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953084100] [2021-12-18 08:57:15,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:57:15,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 08:57:15,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:57:15,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 08:57:15,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 08:57:15,220 INFO L87 Difference]: Start difference. First operand 25383 states and 39236 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 08:57:16,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:57:16,997 INFO L93 Difference]: Finished difference Result 76213 states and 117856 transitions. [2021-12-18 08:57:16,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 08:57:16,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 328 [2021-12-18 08:57:16,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:57:17,368 INFO L225 Difference]: With dead ends: 76213 [2021-12-18 08:57:17,369 INFO L226 Difference]: Without dead ends: 50870 [2021-12-18 08:57:17,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 08:57:17,538 INFO L933 BasicCegarLoop]: 6800 mSDtfsCounter, 5302 mSDsluCounter, 18890 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5306 SdHoareTripleChecker+Valid, 25690 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 08:57:17,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5306 Valid, 25690 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 08:57:17,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50870 states. [2021-12-18 08:57:20,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50870 to 50795. [2021-12-18 08:57:20,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50795 states, 27535 states have (on average 1.3015798075177047) internal successors, (35839), 28495 states have internal predecessors, (35839), 21267 states have call successors, (21267), 1977 states have call predecessors, (21267), 1992 states have return successors, (21450), 20818 states have call predecessors, (21450), 21266 states have call successors, (21450) [2021-12-18 08:57:21,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50795 states to 50795 states and 78556 transitions. [2021-12-18 08:57:21,608 INFO L78 Accepts]: Start accepts. Automaton has 50795 states and 78556 transitions. Word has length 328 [2021-12-18 08:57:21,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:57:21,609 INFO L470 AbstractCegarLoop]: Abstraction has 50795 states and 78556 transitions. [2021-12-18 08:57:21,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 08:57:21,609 INFO L276 IsEmpty]: Start isEmpty. Operand 50795 states and 78556 transitions. [2021-12-18 08:57:21,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-12-18 08:57:21,620 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:57:21,620 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:57:21,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-18 08:57:21,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:57:21,848 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:57:21,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:57:21,848 INFO L85 PathProgramCache]: Analyzing trace with hash -278816971, now seen corresponding path program 1 times [2021-12-18 08:57:21,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:57:21,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000953311] [2021-12-18 08:57:21,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:57:21,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:57:21,996 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 08:57:21,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [680533618] [2021-12-18 08:57:21,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:57:21,997 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:57:21,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:57:21,999 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 08:57:22,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-18 08:57:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:57:23,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 5913 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 08:57:23,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:57:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2021-12-18 08:57:24,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:57:24,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:57:24,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000953311] [2021-12-18 08:57:24,123 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 08:57:24,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680533618] [2021-12-18 08:57:24,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680533618] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:57:24,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:57:24,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 08:57:24,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189709462] [2021-12-18 08:57:24,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:57:24,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 08:57:24,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:57:24,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 08:57:24,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 08:57:24,125 INFO L87 Difference]: Start difference. First operand 50795 states and 78556 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 08:57:27,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:57:27,142 INFO L93 Difference]: Finished difference Result 152641 states and 236160 transitions. [2021-12-18 08:57:27,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 08:57:27,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 325 [2021-12-18 08:57:27,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:57:27,919 INFO L225 Difference]: With dead ends: 152641 [2021-12-18 08:57:27,919 INFO L226 Difference]: Without dead ends: 101886 [2021-12-18 08:57:28,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 08:57:28,166 INFO L933 BasicCegarLoop]: 7314 mSDtfsCounter, 5314 mSDsluCounter, 19932 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5318 SdHoareTripleChecker+Valid, 27246 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 08:57:28,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5318 Valid, 27246 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 08:57:28,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101886 states. [2021-12-18 08:57:34,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101886 to 101467. [2021-12-18 08:57:34,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101467 states, 54983 states have (on average 1.3020569994361895) internal successors, (71591), 56951 states have internal predecessors, (71591), 42499 states have call successors, (42499), 3953 states have call predecessors, (42499), 3984 states have return successors, (43042), 41554 states have call predecessors, (43042), 42498 states have call successors, (43042) [2021-12-18 08:57:35,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101467 states to 101467 states and 157132 transitions. [2021-12-18 08:57:35,471 INFO L78 Accepts]: Start accepts. Automaton has 101467 states and 157132 transitions. Word has length 325 [2021-12-18 08:57:35,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:57:35,473 INFO L470 AbstractCegarLoop]: Abstraction has 101467 states and 157132 transitions. [2021-12-18 08:57:35,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 08:57:35,473 INFO L276 IsEmpty]: Start isEmpty. Operand 101467 states and 157132 transitions. [2021-12-18 08:57:35,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-12-18 08:57:35,490 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:57:35,490 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:57:35,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-18 08:57:35,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:57:35,715 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:57:35,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:57:35,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1883363039, now seen corresponding path program 1 times [2021-12-18 08:57:35,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:57:35,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532534021] [2021-12-18 08:57:35,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:57:35,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:57:35,866 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 08:57:35,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1438534830] [2021-12-18 08:57:35,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:57:35,867 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:57:35,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:57:35,868 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 08:57:35,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-18 08:57:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:57:37,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 5915 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 08:57:37,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:57:37,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2021-12-18 08:57:37,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:57:37,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:57:37,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532534021] [2021-12-18 08:57:37,903 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 08:57:37,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438534830] [2021-12-18 08:57:37,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438534830] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:57:37,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:57:37,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 08:57:37,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166282047] [2021-12-18 08:57:37,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:57:37,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 08:57:37,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:57:37,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 08:57:37,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 08:57:37,905 INFO L87 Difference]: Start difference. First operand 101467 states and 157132 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 08:57:45,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:57:45,135 INFO L93 Difference]: Finished difference Result 304825 states and 472384 transitions. [2021-12-18 08:57:45,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 08:57:45,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 326 [2021-12-18 08:57:45,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:57:46,800 INFO L225 Difference]: With dead ends: 304825 [2021-12-18 08:57:46,800 INFO L226 Difference]: Without dead ends: 203398 [2021-12-18 08:57:47,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 08:57:47,386 INFO L933 BasicCegarLoop]: 6850 mSDtfsCounter, 5304 mSDsluCounter, 18990 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5308 SdHoareTripleChecker+Valid, 25840 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 08:57:47,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5308 Valid, 25840 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 08:57:47,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203398 states.