./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 01:53:59,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 01:53:59,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 01:53:59,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 01:53:59,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 01:53:59,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 01:53:59,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 01:53:59,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 01:53:59,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 01:53:59,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 01:53:59,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 01:53:59,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 01:53:59,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 01:53:59,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 01:53:59,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 01:53:59,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 01:53:59,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 01:53:59,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 01:53:59,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 01:53:59,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 01:53:59,173 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 01:53:59,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 01:53:59,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 01:53:59,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 01:53:59,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 01:53:59,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 01:53:59,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 01:53:59,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 01:53:59,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 01:53:59,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 01:53:59,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 01:53:59,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 01:53:59,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 01:53:59,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 01:53:59,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 01:53:59,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 01:53:59,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 01:53:59,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 01:53:59,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 01:53:59,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 01:53:59,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 01:53:59,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 01:53:59,188 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 01:53:59,207 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 01:53:59,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 01:53:59,208 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 01:53:59,208 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 01:53:59,209 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 01:53:59,209 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 01:53:59,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 01:53:59,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 01:53:59,209 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 01:53:59,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 01:53:59,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 01:53:59,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 01:53:59,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 01:53:59,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 01:53:59,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 01:53:59,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 01:53:59,211 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 01:53:59,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 01:53:59,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 01:53:59,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 01:53:59,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 01:53:59,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:53:59,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 01:53:59,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 01:53:59,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 01:53:59,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 01:53:59,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 01:53:59,212 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 01:53:59,212 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 01:53:59,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 01:53:59,213 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce [2022-07-14 01:53:59,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 01:53:59,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 01:53:59,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 01:53:59,408 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 01:53:59,408 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 01:53:59,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-07-14 01:53:59,451 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24165fe53/4522a54497b64d9682155c4cd1af7df3/FLAG043219739 [2022-07-14 01:54:00,046 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 01:54:00,047 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-07-14 01:54:00,080 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24165fe53/4522a54497b64d9682155c4cd1af7df3/FLAG043219739 [2022-07-14 01:54:00,215 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24165fe53/4522a54497b64d9682155c4cd1af7df3 [2022-07-14 01:54:00,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 01:54:00,219 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 01:54:00,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 01:54:00,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 01:54:00,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 01:54:00,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:54:00" (1/1) ... [2022-07-14 01:54:00,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2988d281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:54:00, skipping insertion in model container [2022-07-14 01:54:00,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:54:00" (1/1) ... [2022-07-14 01:54:00,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 01:54:00,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:54:01,690 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2022-07-14 01:54:01,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:54:01,795 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 01:54:02,038 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2022-07-14 01:54:02,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:54:02,146 INFO L208 MainTranslator]: Completed translation [2022-07-14 01:54:02,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:54:02 WrapperNode [2022-07-14 01:54:02,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 01:54:02,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 01:54:02,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 01:54:02,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 01:54:02,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:54:02" (1/1) ... [2022-07-14 01:54:02,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:54:02" (1/1) ... [2022-07-14 01:54:02,360 INFO L137 Inliner]: procedures = 262, calls = 1347, calls flagged for inlining = 121, calls inlined = 116, statements flattened = 3538 [2022-07-14 01:54:02,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 01:54:02,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 01:54:02,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 01:54:02,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 01:54:02,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:54:02" (1/1) ... [2022-07-14 01:54:02,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:54:02" (1/1) ... [2022-07-14 01:54:02,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:54:02" (1/1) ... [2022-07-14 01:54:02,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:54:02" (1/1) ... [2022-07-14 01:54:02,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:54:02" (1/1) ... [2022-07-14 01:54:02,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:54:02" (1/1) ... [2022-07-14 01:54:02,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:54:02" (1/1) ... [2022-07-14 01:54:02,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 01:54:02,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 01:54:02,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 01:54:02,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 01:54:02,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:54:02" (1/1) ... [2022-07-14 01:54:02,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:54:02,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:54:02,601 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 01:54:02,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 01:54:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2022-07-14 01:54:02,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2022-07-14 01:54:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-07-14 01:54:02,700 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-07-14 01:54:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 01:54:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 01:54:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-14 01:54:02,700 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-14 01:54:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2022-07-14 01:54:02,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2022-07-14 01:54:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 01:54:02,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 01:54:02,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 01:54:02,701 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 01:54:02,701 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset_after_host_error [2022-07-14 01:54:02,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset_after_host_error [2022-07-14 01:54:02,701 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-14 01:54:02,701 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-14 01:54:02,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-14 01:54:02,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-14 01:54:02,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 01:54:02,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 01:54:02,702 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-14 01:54:02,702 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-14 01:54:02,702 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2022-07-14 01:54:02,702 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2022-07-14 01:54:02,702 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 01:54:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 01:54:02,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 01:54:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 01:54:02,703 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-07-14 01:54:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-07-14 01:54:02,703 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-14 01:54:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-14 01:54:02,703 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2022-07-14 01:54:02,704 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2022-07-14 01:54:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 01:54:02,704 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 01:54:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-07-14 01:54:02,704 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-07-14 01:54:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2022-07-14 01:54:02,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2022-07-14 01:54:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-14 01:54:02,705 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-14 01:54:02,705 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 01:54:02,705 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 01:54:02,705 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-14 01:54:02,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-14 01:54:02,705 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-14 01:54:02,705 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-14 01:54:02,705 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-14 01:54:02,706 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-14 01:54:02,706 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2022-07-14 01:54:02,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2022-07-14 01:54:02,706 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2022-07-14 01:54:02,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2022-07-14 01:54:02,706 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-07-14 01:54:02,706 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-07-14 01:54:02,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 01:54:02,707 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-14 01:54:02,707 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-14 01:54:02,707 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-14 01:54:02,707 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-14 01:54:02,707 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-07-14 01:54:02,707 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-07-14 01:54:02,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 01:54:02,707 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-14 01:54:02,708 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-14 01:54:02,708 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 01:54:02,708 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 01:54:02,708 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-07-14 01:54:02,708 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-07-14 01:54:02,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-14 01:54:02,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-14 01:54:02,708 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2022-07-14 01:54:02,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2022-07-14 01:54:02,709 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-14 01:54:02,709 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-14 01:54:02,709 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2022-07-14 01:54:02,709 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2022-07-14 01:54:02,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 01:54:02,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 01:54:02,709 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2022-07-14 01:54:02,710 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2022-07-14 01:54:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-14 01:54:02,710 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-14 01:54:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 01:54:02,710 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 01:54:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 01:54:02,710 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 01:54:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 01:54:02,711 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-14 01:54:02,711 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-14 01:54:02,711 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 01:54:02,711 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 01:54:02,711 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2022-07-14 01:54:02,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2022-07-14 01:54:02,711 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2022-07-14 01:54:02,711 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2022-07-14 01:54:02,712 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2022-07-14 01:54:02,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2022-07-14 01:54:02,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 01:54:02,712 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioctl [2022-07-14 01:54:02,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioctl [2022-07-14 01:54:02,712 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-14 01:54:02,712 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-14 01:54:02,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 01:54:02,713 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 01:54:02,713 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 01:54:02,713 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 01:54:02,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 01:54:02,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 01:54:02,713 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 01:54:02,713 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 01:54:02,713 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 01:54:02,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-14 01:54:02,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-14 01:54:02,714 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-14 01:54:02,714 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-14 01:54:02,714 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-14 01:54:02,714 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-14 01:54:02,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 01:54:02,714 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-14 01:54:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-14 01:54:02,715 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-14 01:54:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-14 01:54:02,715 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-07-14 01:54:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-07-14 01:54:02,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 01:54:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 01:54:02,715 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2022-07-14 01:54:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2022-07-14 01:54:02,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 01:54:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 01:54:02,716 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2022-07-14 01:54:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2022-07-14 01:54:02,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 01:54:02,716 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2022-07-14 01:54:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2022-07-14 01:54:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-14 01:54:02,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-14 01:54:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2022-07-14 01:54:02,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2022-07-14 01:54:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 01:54:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 01:54:02,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 01:54:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 01:54:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-14 01:54:02,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-14 01:54:02,718 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-07-14 01:54:02,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-07-14 01:54:02,718 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2022-07-14 01:54:02,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2022-07-14 01:54:02,718 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-07-14 01:54:02,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-07-14 01:54:02,718 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2022-07-14 01:54:02,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2022-07-14 01:54:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-14 01:54:02,719 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-14 01:54:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-14 01:54:02,719 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-14 01:54:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2022-07-14 01:54:02,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2022-07-14 01:54:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-07-14 01:54:02,719 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-07-14 01:54:02,720 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2022-07-14 01:54:02,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2022-07-14 01:54:02,720 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-07-14 01:54:02,720 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-07-14 01:54:02,720 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_change_mtu [2022-07-14 01:54:02,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_change_mtu [2022-07-14 01:54:02,720 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-14 01:54:02,720 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-14 01:54:02,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 01:54:02,721 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2022-07-14 01:54:02,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2022-07-14 01:54:02,721 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2022-07-14 01:54:02,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2022-07-14 01:54:02,721 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-07-14 01:54:02,721 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-07-14 01:54:02,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 01:54:02,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 01:54:03,353 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 01:54:03,355 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 01:54:04,035 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 01:54:05,797 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 01:54:05,809 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 01:54:05,809 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 01:54:05,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:54:05 BoogieIcfgContainer [2022-07-14 01:54:05,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 01:54:05,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 01:54:05,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 01:54:05,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 01:54:05,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:54:00" (1/3) ... [2022-07-14 01:54:05,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e528ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:54:05, skipping insertion in model container [2022-07-14 01:54:05,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:54:02" (2/3) ... [2022-07-14 01:54:05,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e528ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:54:05, skipping insertion in model container [2022-07-14 01:54:05,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:54:05" (3/3) ... [2022-07-14 01:54:05,819 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-07-14 01:54:05,829 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 01:54:05,829 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 01:54:05,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 01:54:05,887 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@12c0175c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@50669a42 [2022-07-14 01:54:05,887 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 01:54:05,894 INFO L276 IsEmpty]: Start isEmpty. Operand has 1546 states, 1100 states have (on average 1.3836363636363636) internal successors, (1522), 1133 states have internal predecessors, (1522), 364 states have call successors, (364), 83 states have call predecessors, (364), 82 states have return successors, (356), 356 states have call predecessors, (356), 356 states have call successors, (356) [2022-07-14 01:54:05,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-14 01:54:05,911 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:54:05,912 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:54:05,912 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:54:05,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:54:05,916 INFO L85 PathProgramCache]: Analyzing trace with hash 598367255, now seen corresponding path program 1 times [2022-07-14 01:54:05,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:54:05,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736876007] [2022-07-14 01:54:05,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:54:05,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:54:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:06,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:54:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:06,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:06,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:06,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:54:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:06,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:06,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:06,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:54:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:06,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:06,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:06,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:06,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:54:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:06,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:06,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:06,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 01:54:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:06,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:54:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:06,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-14 01:54:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:06,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 01:54:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:06,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-14 01:54:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:06,571 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-14 01:54:06,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:54:06,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736876007] [2022-07-14 01:54:06,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736876007] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:54:06,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:54:06,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 01:54:06,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148496412] [2022-07-14 01:54:06,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:54:06,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 01:54:06,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:54:06,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 01:54:06,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 01:54:06,626 INFO L87 Difference]: Start difference. First operand has 1546 states, 1100 states have (on average 1.3836363636363636) internal successors, (1522), 1133 states have internal predecessors, (1522), 364 states have call successors, (364), 83 states have call predecessors, (364), 82 states have return successors, (356), 356 states have call predecessors, (356), 356 states have call successors, (356) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-14 01:54:12,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:54:14,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:54:14,054 INFO L93 Difference]: Finished difference Result 3348 states and 4998 transitions. [2022-07-14 01:54:14,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 01:54:14,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 122 [2022-07-14 01:54:14,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:54:14,098 INFO L225 Difference]: With dead ends: 3348 [2022-07-14 01:54:14,098 INFO L226 Difference]: Without dead ends: 1786 [2022-07-14 01:54:14,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:54:14,116 INFO L413 NwaCegarLoop]: 1936 mSDtfsCounter, 1298 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 1687 mSolverCounterSat, 1086 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 4446 SdHoareTripleChecker+Invalid, 2773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1086 IncrementalHoareTripleChecker+Valid, 1687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:54:14,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 4446 Invalid, 2773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1086 Valid, 1687 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-07-14 01:54:14,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2022-07-14 01:54:14,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1519. [2022-07-14 01:54:14,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1083 states have (on average 1.2917820867959373) internal successors, (1399), 1105 states have internal predecessors, (1399), 354 states have call successors, (354), 82 states have call predecessors, (354), 81 states have return successors, (353), 353 states have call predecessors, (353), 353 states have call successors, (353) [2022-07-14 01:54:14,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2106 transitions. [2022-07-14 01:54:14,245 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2106 transitions. Word has length 122 [2022-07-14 01:54:14,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:54:14,245 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 2106 transitions. [2022-07-14 01:54:14,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-14 01:54:14,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2106 transitions. [2022-07-14 01:54:14,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-14 01:54:14,252 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:54:14,252 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:54:14,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 01:54:14,252 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:54:14,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:54:14,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1367562046, now seen corresponding path program 1 times [2022-07-14 01:54:14,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:54:14,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099104056] [2022-07-14 01:54:14,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:54:14,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:54:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:14,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:54:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:14,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:14,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:14,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:54:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:14,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:14,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:14,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:54:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:14,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:14,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:14,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:14,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:54:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:14,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:14,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:14,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 01:54:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:14,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:54:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:14,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 01:54:14,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:14,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-14 01:54:14,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:14,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-14 01:54:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:14,636 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-14 01:54:14,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:54:14,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099104056] [2022-07-14 01:54:14,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099104056] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:54:14,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:54:14,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 01:54:14,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900886402] [2022-07-14 01:54:14,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:54:14,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 01:54:14,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:54:14,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 01:54:14,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:54:14,647 INFO L87 Difference]: Start difference. First operand 1519 states and 2106 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-14 01:54:21,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:54:24,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:54:30,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:54:31,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:54:31,593 INFO L93 Difference]: Finished difference Result 5052 states and 7155 transitions. [2022-07-14 01:54:31,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 01:54:31,594 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2022-07-14 01:54:31,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:54:31,613 INFO L225 Difference]: With dead ends: 5052 [2022-07-14 01:54:31,613 INFO L226 Difference]: Without dead ends: 3554 [2022-07-14 01:54:31,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-07-14 01:54:31,621 INFO L413 NwaCegarLoop]: 2369 mSDtfsCounter, 4527 mSDsluCounter, 6196 mSDsCounter, 0 mSdLazyCounter, 5407 mSolverCounterSat, 2395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4743 SdHoareTripleChecker+Valid, 8565 SdHoareTripleChecker+Invalid, 7802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2395 IncrementalHoareTripleChecker+Valid, 5407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2022-07-14 01:54:31,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4743 Valid, 8565 Invalid, 7802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2395 Valid, 5407 Invalid, 0 Unknown, 0 Unchecked, 16.6s Time] [2022-07-14 01:54:31,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3554 states. [2022-07-14 01:54:31,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3554 to 3038. [2022-07-14 01:54:31,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3038 states, 2165 states have (on average 1.2914549653579677) internal successors, (2796), 2215 states have internal predecessors, (2796), 706 states have call successors, (706), 163 states have call predecessors, (706), 166 states have return successors, (727), 703 states have call predecessors, (727), 705 states have call successors, (727) [2022-07-14 01:54:31,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3038 states to 3038 states and 4229 transitions. [2022-07-14 01:54:31,734 INFO L78 Accepts]: Start accepts. Automaton has 3038 states and 4229 transitions. Word has length 121 [2022-07-14 01:54:31,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:54:31,736 INFO L495 AbstractCegarLoop]: Abstraction has 3038 states and 4229 transitions. [2022-07-14 01:54:31,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-14 01:54:31,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3038 states and 4229 transitions. [2022-07-14 01:54:31,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-14 01:54:31,743 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:54:31,743 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:54:31,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 01:54:31,744 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:54:31,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:54:31,744 INFO L85 PathProgramCache]: Analyzing trace with hash -586623518, now seen corresponding path program 1 times [2022-07-14 01:54:31,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:54:31,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118022649] [2022-07-14 01:54:31,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:54:31,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:54:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:31,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:54:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:31,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:31,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:31,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:54:31,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:31,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:31,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:31,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:54:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:31,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:31,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:31,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:54:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:31,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:31,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:31,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 01:54:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:31,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:54:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:31,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-14 01:54:31,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:31,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-14 01:54:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:31,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:54:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:31,993 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-14 01:54:31,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:54:31,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118022649] [2022-07-14 01:54:31,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118022649] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:54:31,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:54:31,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 01:54:31,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94148120] [2022-07-14 01:54:31,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:54:31,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 01:54:31,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:54:32,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 01:54:32,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:54:32,000 INFO L87 Difference]: Start difference. First operand 3038 states and 4229 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-14 01:54:41,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:54:43,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:54:44,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:54:45,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:54:45,779 INFO L93 Difference]: Finished difference Result 10096 states and 14365 transitions. [2022-07-14 01:54:45,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 01:54:45,780 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 124 [2022-07-14 01:54:45,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:54:45,828 INFO L225 Difference]: With dead ends: 10096 [2022-07-14 01:54:45,829 INFO L226 Difference]: Without dead ends: 7079 [2022-07-14 01:54:45,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-07-14 01:54:45,849 INFO L413 NwaCegarLoop]: 2257 mSDtfsCounter, 5721 mSDsluCounter, 5010 mSDsCounter, 0 mSdLazyCounter, 4616 mSolverCounterSat, 3463 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5937 SdHoareTripleChecker+Valid, 7267 SdHoareTripleChecker+Invalid, 8080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3463 IncrementalHoareTripleChecker+Valid, 4616 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:54:45,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5937 Valid, 7267 Invalid, 8080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3463 Valid, 4616 Invalid, 1 Unknown, 0 Unchecked, 13.3s Time] [2022-07-14 01:54:45,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7079 states. [2022-07-14 01:54:46,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7079 to 6110. [2022-07-14 01:54:46,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6110 states, 4355 states have (on average 1.2911595866819747) internal successors, (5623), 4458 states have internal predecessors, (5623), 1414 states have call successors, (1414), 325 states have call predecessors, (1414), 340 states have return successors, (1523), 1414 states have call predecessors, (1523), 1413 states have call successors, (1523) [2022-07-14 01:54:46,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6110 states to 6110 states and 8560 transitions. [2022-07-14 01:54:46,194 INFO L78 Accepts]: Start accepts. Automaton has 6110 states and 8560 transitions. Word has length 124 [2022-07-14 01:54:46,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:54:46,195 INFO L495 AbstractCegarLoop]: Abstraction has 6110 states and 8560 transitions. [2022-07-14 01:54:46,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-14 01:54:46,195 INFO L276 IsEmpty]: Start isEmpty. Operand 6110 states and 8560 transitions. [2022-07-14 01:54:46,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-14 01:54:46,199 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:54:46,199 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:54:46,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 01:54:46,200 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:54:46,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:54:46,201 INFO L85 PathProgramCache]: Analyzing trace with hash 125232671, now seen corresponding path program 1 times [2022-07-14 01:54:46,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:54:46,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480174335] [2022-07-14 01:54:46,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:54:46,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:54:46,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:46,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:54:46,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:46,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:46,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:46,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:54:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:46,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:46,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:46,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:54:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:46,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:46,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:46,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:54:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:46,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:46,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:46,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 01:54:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:46,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:54:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:46,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-14 01:54:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:46,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 01:54:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:46,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-14 01:54:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:46,447 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-14 01:54:46,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:54:46,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480174335] [2022-07-14 01:54:46,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480174335] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:54:46,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:54:46,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 01:54:46,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536291173] [2022-07-14 01:54:46,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:54:46,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 01:54:46,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:54:46,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 01:54:46,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:54:46,449 INFO L87 Difference]: Start difference. First operand 6110 states and 8560 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-14 01:54:53,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:54:55,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:54:58,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:55:00,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:55:02,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:55:02,394 INFO L93 Difference]: Finished difference Result 20220 states and 28925 transitions. [2022-07-14 01:55:02,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 01:55:02,395 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 122 [2022-07-14 01:55:02,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:55:02,476 INFO L225 Difference]: With dead ends: 20220 [2022-07-14 01:55:02,476 INFO L226 Difference]: Without dead ends: 14131 [2022-07-14 01:55:02,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-07-14 01:55:02,506 INFO L413 NwaCegarLoop]: 2256 mSDtfsCounter, 4456 mSDsluCounter, 6727 mSDsCounter, 0 mSdLazyCounter, 6120 mSolverCounterSat, 2414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4672 SdHoareTripleChecker+Valid, 8983 SdHoareTripleChecker+Invalid, 8534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2414 IncrementalHoareTripleChecker+Valid, 6120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-07-14 01:55:02,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4672 Valid, 8983 Invalid, 8534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2414 Valid, 6120 Invalid, 0 Unknown, 0 Unchecked, 15.4s Time] [2022-07-14 01:55:02,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14131 states. [2022-07-14 01:55:02,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14131 to 12200. [2022-07-14 01:55:03,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12200 states, 8699 states have (on average 1.2903782043913092) internal successors, (11225), 8903 states have internal predecessors, (11225), 2819 states have call successors, (2819), 650 states have call predecessors, (2819), 681 states have return successors, (3126), 2822 states have call predecessors, (3126), 2818 states have call successors, (3126) [2022-07-14 01:55:03,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12200 states to 12200 states and 17170 transitions. [2022-07-14 01:55:03,067 INFO L78 Accepts]: Start accepts. Automaton has 12200 states and 17170 transitions. Word has length 122 [2022-07-14 01:55:03,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:55:03,068 INFO L495 AbstractCegarLoop]: Abstraction has 12200 states and 17170 transitions. [2022-07-14 01:55:03,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-14 01:55:03,069 INFO L276 IsEmpty]: Start isEmpty. Operand 12200 states and 17170 transitions. [2022-07-14 01:55:03,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-14 01:55:03,072 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:55:03,073 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:55:03,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 01:55:03,073 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:55:03,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:55:03,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1245682533, now seen corresponding path program 1 times [2022-07-14 01:55:03,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:55:03,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685883544] [2022-07-14 01:55:03,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:03,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:55:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:03,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:55:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:03,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:03,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:03,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:03,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:55:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:03,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:03,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:03,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:55:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:03,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:03,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:03,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:03,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:55:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:03,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:03,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:03,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:03,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 01:55:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:03,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:55:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:03,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 01:55:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:03,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 01:55:03,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:03,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:55:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:03,316 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-14 01:55:03,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:55:03,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685883544] [2022-07-14 01:55:03,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685883544] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:55:03,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:55:03,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 01:55:03,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696816018] [2022-07-14 01:55:03,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:55:03,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 01:55:03,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:55:03,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 01:55:03,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:55:03,320 INFO L87 Difference]: Start difference. First operand 12200 states and 17170 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-14 01:55:11,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:55:14,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:55:14,100 INFO L93 Difference]: Finished difference Result 39851 states and 57195 transitions. [2022-07-14 01:55:14,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 01:55:14,100 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 123 [2022-07-14 01:55:14,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:55:14,215 INFO L225 Difference]: With dead ends: 39851 [2022-07-14 01:55:14,215 INFO L226 Difference]: Without dead ends: 27672 [2022-07-14 01:55:14,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-07-14 01:55:14,262 INFO L413 NwaCegarLoop]: 2168 mSDtfsCounter, 5844 mSDsluCounter, 4868 mSDsCounter, 0 mSdLazyCounter, 4493 mSolverCounterSat, 3542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6061 SdHoareTripleChecker+Valid, 7036 SdHoareTripleChecker+Invalid, 8035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3542 IncrementalHoareTripleChecker+Valid, 4493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-07-14 01:55:14,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6061 Valid, 7036 Invalid, 8035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3542 Valid, 4493 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2022-07-14 01:55:14,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27672 states. [2022-07-14 01:55:15,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27672 to 24028. [2022-07-14 01:55:15,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24028 states, 17128 states have (on average 1.2884166277440448) internal successors, (22068), 17520 states have internal predecessors, (22068), 5545 states have call successors, (5545), 1291 states have call predecessors, (5545), 1354 states have return successors, (6350), 5556 states have call predecessors, (6350), 5544 states have call successors, (6350) [2022-07-14 01:55:15,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24028 states to 24028 states and 33963 transitions. [2022-07-14 01:55:15,231 INFO L78 Accepts]: Start accepts. Automaton has 24028 states and 33963 transitions. Word has length 123 [2022-07-14 01:55:15,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:55:15,232 INFO L495 AbstractCegarLoop]: Abstraction has 24028 states and 33963 transitions. [2022-07-14 01:55:15,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-14 01:55:15,232 INFO L276 IsEmpty]: Start isEmpty. Operand 24028 states and 33963 transitions. [2022-07-14 01:55:15,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-14 01:55:15,236 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:55:15,236 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:55:15,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 01:55:15,237 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:55:15,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:55:15,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1847397746, now seen corresponding path program 1 times [2022-07-14 01:55:15,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:55:15,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034344121] [2022-07-14 01:55:15,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:15,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:55:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:55:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:15,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:55:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:15,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:55:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:55:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 01:55:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:55:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-14 01:55:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-14 01:55:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:55:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 01:55:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,792 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-07-14 01:55:15,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:55:15,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034344121] [2022-07-14 01:55:15,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034344121] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:55:15,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858383580] [2022-07-14 01:55:15,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:15,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:55:15,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:55:15,813 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 01:55:15,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 01:55:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:16,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 2350 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 01:55:16,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:55:16,714 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-14 01:55:16,714 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:55:16,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858383580] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:55:16,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 01:55:16,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-07-14 01:55:16,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266775789] [2022-07-14 01:55:16,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:55:16,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:55:16,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:55:16,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:55:16,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-07-14 01:55:16,716 INFO L87 Difference]: Start difference. First operand 24028 states and 33963 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 01:55:17,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:55:17,798 INFO L93 Difference]: Finished difference Result 60044 states and 85011 transitions. [2022-07-14 01:55:17,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 01:55:17,798 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 134 [2022-07-14 01:55:17,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:55:18,111 INFO L225 Difference]: With dead ends: 60044 [2022-07-14 01:55:18,111 INFO L226 Difference]: Without dead ends: 36037 [2022-07-14 01:55:18,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-07-14 01:55:18,194 INFO L413 NwaCegarLoop]: 3306 mSDtfsCounter, 2132 mSDsluCounter, 15295 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 18601 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:55:18,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 18601 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 01:55:18,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36037 states. [2022-07-14 01:55:19,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36037 to 35888. [2022-07-14 01:55:19,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35888 states, 25589 states have (on average 1.288678729141428) internal successors, (32976), 26181 states have internal predecessors, (32976), 8267 states have call successors, (8267), 1928 states have call predecessors, (8267), 2031 states have return successors, (9658), 8282 states have call predecessors, (9658), 8266 states have call successors, (9658) [2022-07-14 01:55:19,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35888 states to 35888 states and 50901 transitions. [2022-07-14 01:55:19,551 INFO L78 Accepts]: Start accepts. Automaton has 35888 states and 50901 transitions. Word has length 134 [2022-07-14 01:55:19,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:55:19,551 INFO L495 AbstractCegarLoop]: Abstraction has 35888 states and 50901 transitions. [2022-07-14 01:55:19,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 01:55:19,552 INFO L276 IsEmpty]: Start isEmpty. Operand 35888 states and 50901 transitions. [2022-07-14 01:55:19,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-14 01:55:19,558 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:55:19,558 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:55:19,581 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-14 01:55:19,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-14 01:55:19,772 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:55:19,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:55:19,772 INFO L85 PathProgramCache]: Analyzing trace with hash -919878022, now seen corresponding path program 1 times [2022-07-14 01:55:19,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:55:19,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974259249] [2022-07-14 01:55:19,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:19,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:55:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:55:20,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:55:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:55:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:55:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 01:55:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:55:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-14 01:55:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 01:55:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 01:55:20,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 01:55:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,625 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-14 01:55:20,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:55:20,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974259249] [2022-07-14 01:55:20,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974259249] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:55:20,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015181106] [2022-07-14 01:55:20,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:20,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:55:20,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:55:20,640 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 01:55:20,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 01:55:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:21,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 2352 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 01:55:21,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:55:21,675 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-14 01:55:21,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:55:21,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015181106] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:55:21,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 01:55:21,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-07-14 01:55:21,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101268156] [2022-07-14 01:55:21,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:55:21,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:55:21,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:55:21,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:55:21,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-14 01:55:21,677 INFO L87 Difference]: Start difference. First operand 35888 states and 50901 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 01:55:23,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:55:23,282 INFO L93 Difference]: Finished difference Result 83817 states and 118933 transitions. [2022-07-14 01:55:23,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 01:55:23,283 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 135 [2022-07-14 01:55:23,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:55:23,599 INFO L225 Difference]: With dead ends: 83817 [2022-07-14 01:55:23,599 INFO L226 Difference]: Without dead ends: 47950 [2022-07-14 01:55:23,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-07-14 01:55:23,882 INFO L413 NwaCegarLoop]: 3428 mSDtfsCounter, 2132 mSDsluCounter, 15771 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 19199 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:55:23,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 19199 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 01:55:23,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47950 states. [2022-07-14 01:55:25,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47950 to 47780. [2022-07-14 01:55:25,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47780 states, 34070 states have (on average 1.288641033167009) internal successors, (43904), 34878 states have internal predecessors, (43904), 10989 states have call successors, (10989), 2565 states have call predecessors, (10989), 2720 states have return successors, (12978), 11004 states have call predecessors, (12978), 10988 states have call successors, (12978) [2022-07-14 01:55:25,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47780 states to 47780 states and 67871 transitions. [2022-07-14 01:55:25,697 INFO L78 Accepts]: Start accepts. Automaton has 47780 states and 67871 transitions. Word has length 135 [2022-07-14 01:55:25,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:55:25,697 INFO L495 AbstractCegarLoop]: Abstraction has 47780 states and 67871 transitions. [2022-07-14 01:55:25,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 01:55:25,698 INFO L276 IsEmpty]: Start isEmpty. Operand 47780 states and 67871 transitions. [2022-07-14 01:55:25,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-14 01:55:25,705 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:55:25,705 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:55:25,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 01:55:25,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-07-14 01:55:25,919 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:55:25,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:55:25,920 INFO L85 PathProgramCache]: Analyzing trace with hash -993924551, now seen corresponding path program 1 times [2022-07-14 01:55:25,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:55:25,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586504886] [2022-07-14 01:55:25,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:25,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:55:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:55:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:55:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:55:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:55:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 01:55:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:55:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 01:55:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-14 01:55:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-14 01:55:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-14 01:55:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,381 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-14 01:55:26,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:55:26,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586504886] [2022-07-14 01:55:26,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586504886] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:55:26,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393959358] [2022-07-14 01:55:26,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:26,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:55:26,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:55:26,400 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 01:55:26,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 01:55:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:27,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 2354 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 01:55:27,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:55:27,163 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-14 01:55:27,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:55:27,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393959358] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:55:27,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 01:55:27,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-07-14 01:55:27,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391071407] [2022-07-14 01:55:27,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:55:27,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:55:27,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:55:27,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:55:27,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-14 01:55:27,165 INFO L87 Difference]: Start difference. First operand 47780 states and 67871 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 01:55:29,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:55:29,141 INFO L93 Difference]: Finished difference Result 107590 states and 152855 transitions. [2022-07-14 01:55:29,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 01:55:29,142 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 136 [2022-07-14 01:55:29,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:55:29,470 INFO L225 Difference]: With dead ends: 107590 [2022-07-14 01:55:29,470 INFO L226 Difference]: Without dead ends: 59831 [2022-07-14 01:55:29,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-07-14 01:55:29,654 INFO L413 NwaCegarLoop]: 3433 mSDtfsCounter, 2132 mSDsluCounter, 15791 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 19224 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:55:29,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 19224 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 01:55:29,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59831 states. [2022-07-14 01:55:31,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59831 to 47802. [2022-07-14 01:55:31,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47802 states, 34086 states have (on average 1.288505544798451) internal successors, (43920), 34896 states have internal predecessors, (43920), 10989 states have call successors, (10989), 2565 states have call predecessors, (10989), 2726 states have return successors, (12987), 11008 states have call predecessors, (12987), 10988 states have call successors, (12987) [2022-07-14 01:55:31,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47802 states to 47802 states and 67896 transitions. [2022-07-14 01:55:31,815 INFO L78 Accepts]: Start accepts. Automaton has 47802 states and 67896 transitions. Word has length 136 [2022-07-14 01:55:31,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:55:31,816 INFO L495 AbstractCegarLoop]: Abstraction has 47802 states and 67896 transitions. [2022-07-14 01:55:31,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 01:55:31,816 INFO L276 IsEmpty]: Start isEmpty. Operand 47802 states and 67896 transitions. [2022-07-14 01:55:31,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-14 01:55:31,822 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:55:31,823 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:55:31,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 01:55:32,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:55:32,044 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:55:32,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:55:32,045 INFO L85 PathProgramCache]: Analyzing trace with hash 817756705, now seen corresponding path program 1 times [2022-07-14 01:55:32,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:55:32,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491427002] [2022-07-14 01:55:32,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:32,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:55:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:55:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:55:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:55:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:55:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 01:55:32,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:55:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 01:55:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-14 01:55:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 01:55:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 01:55:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,367 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-14 01:55:32,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:55:32,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491427002] [2022-07-14 01:55:32,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491427002] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:55:32,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657009756] [2022-07-14 01:55:32,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:32,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:55:32,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:55:32,369 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 01:55:32,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 01:55:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:32,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 2356 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 01:55:32,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:55:33,030 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-14 01:55:33,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:55:33,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657009756] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:55:33,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 01:55:33,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-07-14 01:55:33,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631911075] [2022-07-14 01:55:33,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:55:33,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:55:33,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:55:33,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:55:33,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-14 01:55:33,033 INFO L87 Difference]: Start difference. First operand 47802 states and 67896 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 01:55:34,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:55:34,823 INFO L93 Difference]: Finished difference Result 107620 states and 152888 transitions. [2022-07-14 01:55:34,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 01:55:34,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 137 [2022-07-14 01:55:34,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:55:35,111 INFO L225 Difference]: With dead ends: 107620 [2022-07-14 01:55:35,111 INFO L226 Difference]: Without dead ends: 59839 [2022-07-14 01:55:35,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-07-14 01:55:35,310 INFO L413 NwaCegarLoop]: 3433 mSDtfsCounter, 2132 mSDsluCounter, 15791 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 19224 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:55:35,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 19224 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 01:55:35,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59839 states. [2022-07-14 01:55:36,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59839 to 47815. [2022-07-14 01:55:36,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47815 states, 34096 states have (on average 1.2884209291412483) internal successors, (43930), 34905 states have internal predecessors, (43930), 10989 states have call successors, (10989), 2565 states have call predecessors, (10989), 2729 states have return successors, (12990), 11012 states have call predecessors, (12990), 10988 states have call successors, (12990) [2022-07-14 01:55:36,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47815 states to 47815 states and 67909 transitions. [2022-07-14 01:55:37,000 INFO L78 Accepts]: Start accepts. Automaton has 47815 states and 67909 transitions. Word has length 137 [2022-07-14 01:55:37,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:55:37,001 INFO L495 AbstractCegarLoop]: Abstraction has 47815 states and 67909 transitions. [2022-07-14 01:55:37,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 01:55:37,001 INFO L276 IsEmpty]: Start isEmpty. Operand 47815 states and 67909 transitions. [2022-07-14 01:55:37,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-14 01:55:37,010 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:55:37,010 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:55:37,231 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forcibly destroying the process [2022-07-14 01:55:37,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:55:37,232 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:55:37,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:55:37,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1213177751, now seen corresponding path program 1 times [2022-07-14 01:55:37,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:55:37,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149642760] [2022-07-14 01:55:37,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:37,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:55:37,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 01:55:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:55:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:55:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:37,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:55:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:55:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 01:55:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:55:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 01:55:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 01:55:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 01:55:37,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 01:55:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 01:55:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:55:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-14 01:55:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 01:55:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:37,560 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-07-14 01:55:37,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:55:37,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149642760] [2022-07-14 01:55:37,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149642760] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:55:37,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:55:37,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 01:55:37,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300655152] [2022-07-14 01:55:37,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:55:37,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:55:37,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:55:37,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:55:37,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:55:37,563 INFO L87 Difference]: Start difference. First operand 47815 states and 67909 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:55:44,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:55:48,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:55:50,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:55:50,305 INFO L93 Difference]: Finished difference Result 73578 states and 106295 transitions. [2022-07-14 01:55:50,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 01:55:50,306 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2022-07-14 01:55:50,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:55:50,692 INFO L225 Difference]: With dead ends: 73578 [2022-07-14 01:55:50,692 INFO L226 Difference]: Without dead ends: 73575 [2022-07-14 01:55:50,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-14 01:55:50,739 INFO L413 NwaCegarLoop]: 1993 mSDtfsCounter, 4367 mSDsluCounter, 2558 mSDsCounter, 0 mSdLazyCounter, 4309 mSolverCounterSat, 2695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4587 SdHoareTripleChecker+Valid, 4551 SdHoareTripleChecker+Invalid, 7004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2695 IncrementalHoareTripleChecker+Valid, 4309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-07-14 01:55:50,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4587 Valid, 4551 Invalid, 7004 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2695 Valid, 4309 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2022-07-14 01:55:50,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73575 states. [2022-07-14 01:55:52,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73575 to 60252. [2022-07-14 01:55:53,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60252 states, 42697 states have (on average 1.2734149940276835) internal successors, (54371), 43535 states have internal predecessors, (54371), 13768 states have call successors, (13768), 3622 states have call predecessors, (13768), 3786 states have return successors, (15769), 13791 states have call predecessors, (15769), 13767 states have call successors, (15769) [2022-07-14 01:55:53,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60252 states to 60252 states and 83908 transitions. [2022-07-14 01:55:53,254 INFO L78 Accepts]: Start accepts. Automaton has 60252 states and 83908 transitions. Word has length 157 [2022-07-14 01:55:53,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:55:53,259 INFO L495 AbstractCegarLoop]: Abstraction has 60252 states and 83908 transitions. [2022-07-14 01:55:53,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:55:53,259 INFO L276 IsEmpty]: Start isEmpty. Operand 60252 states and 83908 transitions. [2022-07-14 01:55:53,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-14 01:55:53,315 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:55:53,315 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:55:53,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 01:55:53,316 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:55:53,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:55:53,316 INFO L85 PathProgramCache]: Analyzing trace with hash -517310490, now seen corresponding path program 1 times [2022-07-14 01:55:53,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:55:53,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314438624] [2022-07-14 01:55:53,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:53,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:55:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:53,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:55:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:53,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:53,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:53,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:53,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:55:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:53,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:53,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:53,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:53,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:55:53,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:53,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:53,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:53,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:55:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:53,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:53,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:53,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 01:55:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:53,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:55:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:53,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-14 01:55:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:53,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 01:55:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:53,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-14 01:55:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:54,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 01:55:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:54,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-14 01:55:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:54,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:55:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:54,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:54,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 01:55:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:54,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-14 01:55:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:54,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-14 01:55:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:54,112 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-14 01:55:54,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:55:54,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314438624] [2022-07-14 01:55:54,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314438624] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:55:54,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991433718] [2022-07-14 01:55:54,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:54,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:55:54,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:55:54,123 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 01:55:54,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 01:55:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:54,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 2703 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-14 01:55:54,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:55:54,939 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-14 01:55:54,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 01:55:55,205 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-07-14 01:55:55,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991433718] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 01:55:55,206 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 01:55:55,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2022-07-14 01:55:55,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111732189] [2022-07-14 01:55:55,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 01:55:55,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-14 01:55:55,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:55:55,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-14 01:55:55,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2022-07-14 01:55:55,207 INFO L87 Difference]: Start difference. First operand 60252 states and 83908 transitions. Second operand has 24 states, 24 states have (on average 6.5) internal successors, (156), 15 states have internal predecessors, (156), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35)