./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3ddf607d1745197f42ec93d91371fe3b581377117340b3a7d449f25d43cdec16 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 16:41:26,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 16:41:26,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 16:41:26,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 16:41:26,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 16:41:26,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 16:41:26,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 16:41:26,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 16:41:26,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 16:41:26,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 16:41:26,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 16:41:26,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 16:41:26,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 16:41:26,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 16:41:26,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 16:41:26,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 16:41:26,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 16:41:26,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 16:41:26,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 16:41:26,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 16:41:26,128 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 16:41:26,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 16:41:26,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 16:41:26,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 16:41:26,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 16:41:26,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 16:41:26,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 16:41:26,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 16:41:26,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 16:41:26,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 16:41:26,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 16:41:26,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 16:41:26,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 16:41:26,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 16:41:26,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 16:41:26,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 16:41:26,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 16:41:26,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 16:41:26,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 16:41:26,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 16:41:26,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 16:41:26,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 16:41:26,141 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 16:41:26,162 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 16:41:26,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 16:41:26,164 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 16:41:26,164 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 16:41:26,165 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 16:41:26,165 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 16:41:26,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 16:41:26,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 16:41:26,166 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 16:41:26,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 16:41:26,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 16:41:26,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 16:41:26,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 16:41:26,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 16:41:26,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 16:41:26,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 16:41:26,168 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 16:41:26,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 16:41:26,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 16:41:26,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 16:41:26,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 16:41:26,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:41:26,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 16:41:26,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 16:41:26,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 16:41:26,170 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 16:41:26,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 16:41:26,171 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 16:41:26,171 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 16:41:26,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 16:41:26,171 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ddf607d1745197f42ec93d91371fe3b581377117340b3a7d449f25d43cdec16 [2022-07-12 16:41:26,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 16:41:26,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 16:41:26,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 16:41:26,378 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 16:41:26,378 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 16:41:26,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2022-07-12 16:41:26,430 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d722a4b4/0579ea5643a84288ae66ec2a3565ae36/FLAGcfb2b22b2 [2022-07-12 16:41:27,115 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 16:41:27,116 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2022-07-12 16:41:27,179 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d722a4b4/0579ea5643a84288ae66ec2a3565ae36/FLAGcfb2b22b2 [2022-07-12 16:41:27,233 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d722a4b4/0579ea5643a84288ae66ec2a3565ae36 [2022-07-12 16:41:27,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 16:41:27,238 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 16:41:27,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 16:41:27,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 16:41:27,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 16:41:27,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:41:27" (1/1) ... [2022-07-12 16:41:27,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48df91f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:41:27, skipping insertion in model container [2022-07-12 16:41:27,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:41:27" (1/1) ... [2022-07-12 16:41:27,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 16:41:27,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:41:29,732 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402050,402063] [2022-07-12 16:41:29,735 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402195,402208] [2022-07-12 16:41:29,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:41:29,785 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 16:41:30,116 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402050,402063] [2022-07-12 16:41:30,117 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402195,402208] [2022-07-12 16:41:30,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:41:30,275 INFO L208 MainTranslator]: Completed translation [2022-07-12 16:41:30,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:41:30 WrapperNode [2022-07-12 16:41:30,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 16:41:30,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 16:41:30,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 16:41:30,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 16:41:30,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:41:30" (1/1) ... [2022-07-12 16:41:30,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:41:30" (1/1) ... [2022-07-12 16:41:30,566 INFO L137 Inliner]: procedures = 547, calls = 2335, calls flagged for inlining = 258, calls inlined = 200, statements flattened = 5036 [2022-07-12 16:41:30,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 16:41:30,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 16:41:30,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 16:41:30,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 16:41:30,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:41:30" (1/1) ... [2022-07-12 16:41:30,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:41:30" (1/1) ... [2022-07-12 16:41:30,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:41:30" (1/1) ... [2022-07-12 16:41:30,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:41:30" (1/1) ... [2022-07-12 16:41:30,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:41:30" (1/1) ... [2022-07-12 16:41:30,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:41:30" (1/1) ... [2022-07-12 16:41:30,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:41:30" (1/1) ... [2022-07-12 16:41:30,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 16:41:30,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 16:41:30,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 16:41:30,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 16:41:30,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:41:30" (1/1) ... [2022-07-12 16:41:30,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:41:30,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 16:41:30,817 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) [2022-07-12 16:41:30,839 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 [2022-07-12 16:41:30,861 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2022-07-12 16:41:30,862 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2022-07-12 16:41:30,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 16:41:30,862 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 16:41:30,862 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-07-12 16:41:30,862 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-07-12 16:41:30,862 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-07-12 16:41:30,863 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-07-12 16:41:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 16:41:30,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 16:41:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_lock_of_netfront_info [2022-07-12 16:41:30,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_lock_of_netfront_info [2022-07-12 16:41:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2022-07-12 16:41:30,863 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2022-07-12 16:41:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-12 16:41:30,863 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-12 16:41:30,864 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_interrupt [2022-07-12 16:41:30,864 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_interrupt [2022-07-12 16:41:30,864 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-12 16:41:30,864 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-12 16:41:30,864 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2022-07-12 16:41:30,864 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2022-07-12 16:41:30,864 INFO L130 BoogieDeclarations]: Found specification of procedure free_percpu [2022-07-12 16:41:30,864 INFO L138 BoogieDeclarations]: Found implementation of procedure free_percpu [2022-07-12 16:41:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2022-07-12 16:41:30,865 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2022-07-12 16:41:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2022-07-12 16:41:30,865 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2022-07-12 16:41:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2022-07-12 16:41:30,865 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2022-07-12 16:41:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 16:41:30,865 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 16:41:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2022-07-12 16:41:30,866 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2022-07-12 16:41:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2022-07-12 16:41:30,866 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2022-07-12 16:41:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 16:41:30,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 16:41:30,867 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-12 16:41:30,867 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-12 16:41:30,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 16:41:30,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 16:41:30,867 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2022-07-12 16:41:30,867 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2022-07-12 16:41:30,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 16:41:30,868 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-07-12 16:41:30,868 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-07-12 16:41:30,868 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2022-07-12 16:41:30,868 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2022-07-12 16:41:30,868 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2022-07-12 16:41:30,868 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2022-07-12 16:41:30,868 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 16:41:30,869 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 16:41:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 16:41:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2022-07-12 16:41:30,870 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2022-07-12 16:41:30,870 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-07-12 16:41:30,870 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-07-12 16:41:30,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-07-12 16:41:30,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-07-12 16:41:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 16:41:30,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 16:41:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 16:41:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 16:41:30,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 16:41:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2022-07-12 16:41:30,871 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2022-07-12 16:41:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 16:41:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 16:41:30,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 16:41:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 16:41:30,872 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 16:41:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-12 16:41:30,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-12 16:41:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_124 [2022-07-12 16:41:30,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_124 [2022-07-12 16:41:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-12 16:41:30,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-12 16:41:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2022-07-12 16:41:30,873 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2022-07-12 16:41:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-12 16:41:30,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-12 16:41:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2022-07-12 16:41:30,874 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2022-07-12 16:41:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2022-07-12 16:41:30,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2022-07-12 16:41:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_uninit [2022-07-12 16:41:30,875 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_uninit [2022-07-12 16:41:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-07-12 16:41:30,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-07-12 16:41:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 16:41:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 16:41:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 16:41:30,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 16:41:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 16:41:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-07-12 16:41:30,876 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-07-12 16:41:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-07-12 16:41:30,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-07-12 16:41:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-07-12 16:41:30,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-07-12 16:41:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-07-12 16:41:30,877 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-07-12 16:41:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2022-07-12 16:41:30,877 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2022-07-12 16:41:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-12 16:41:30,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-12 16:41:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 16:41:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 16:41:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-12 16:41:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-12 16:41:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-07-12 16:41:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-07-12 16:41:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 16:41:30,879 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 16:41:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2022-07-12 16:41:30,880 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2022-07-12 16:41:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 16:41:30,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 16:41:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-12 16:41:30,882 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-12 16:41:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 16:41:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 16:41:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 16:41:30,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 16:41:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2022-07-12 16:41:30,889 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2022-07-12 16:41:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-07-12 16:41:30,889 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-07-12 16:41:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2022-07-12 16:41:30,889 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2022-07-12 16:41:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-12 16:41:30,889 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-12 16:41:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-12 16:41:30,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-12 16:41:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-07-12 16:41:30,890 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-07-12 16:41:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-07-12 16:41:30,890 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-07-12 16:41:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 16:41:30,890 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 16:41:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 16:41:30,890 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 16:41:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-07-12 16:41:30,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-07-12 16:41:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2022-07-12 16:41:30,891 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2022-07-12 16:41:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-07-12 16:41:30,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-07-12 16:41:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 16:41:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2022-07-12 16:41:30,891 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2022-07-12 16:41:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2022-07-12 16:41:30,891 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2022-07-12 16:41:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_netfront_info [2022-07-12 16:41:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_netfront_info [2022-07-12 16:41:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2022-07-12 16:41:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2022-07-12 16:41:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 16:41:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-07-12 16:41:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-07-12 16:41:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_min [2022-07-12 16:41:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_min [2022-07-12 16:41:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2022-07-12 16:41:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2022-07-12 16:41:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 16:41:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-12 16:41:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-12 16:41:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2022-07-12 16:41:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2022-07-12 16:41:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2022-07-12 16:41:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2022-07-12 16:41:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 16:41:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 16:41:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 16:41:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 16:41:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-07-12 16:41:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-07-12 16:41:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2022-07-12 16:41:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2022-07-12 16:41:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-12 16:41:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-12 16:41:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_104 [2022-07-12 16:41:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_104 [2022-07-12 16:41:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2022-07-12 16:41:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2022-07-12 16:41:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2022-07-12 16:41:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2022-07-12 16:41:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-07-12 16:41:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-07-12 16:41:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-12 16:41:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-12 16:41:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 16:41:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 16:41:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-07-12 16:41:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-07-12 16:41:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2022-07-12 16:41:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2022-07-12 16:41:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 16:41:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 16:41:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 16:41:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 16:41:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2022-07-12 16:41:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2022-07-12 16:41:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 16:41:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-07-12 16:41:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-07-12 16:41:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 16:41:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 16:41:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2022-07-12 16:41:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2022-07-12 16:41:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-12 16:41:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-12 16:41:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rx_interrupt [2022-07-12 16:41:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rx_interrupt [2022-07-12 16:41:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2022-07-12 16:41:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2022-07-12 16:41:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-12 16:41:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-12 16:41:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-07-12 16:41:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-07-12 16:41:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_105 [2022-07-12 16:41:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_105 [2022-07-12 16:41:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_max [2022-07-12 16:41:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_max [2022-07-12 16:41:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-12 16:41:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-12 16:41:30,899 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-07-12 16:41:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-07-12 16:41:30,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 16:41:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 16:41:30,899 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_interrupt [2022-07-12 16:41:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_interrupt [2022-07-12 16:41:30,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_123 [2022-07-12 16:41:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_123 [2022-07-12 16:41:30,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 16:41:30,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 16:41:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 16:41:30,900 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-12 16:41:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-12 16:41:30,900 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-07-12 16:41:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-07-12 16:41:30,900 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2022-07-12 16:41:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2022-07-12 16:41:30,903 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2022-07-12 16:41:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2022-07-12 16:41:31,616 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 16:41:31,618 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 16:41:31,818 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 16:41:37,688 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 16:41:37,699 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 16:41:37,699 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 16:41:37,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:41:37 BoogieIcfgContainer [2022-07-12 16:41:37,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 16:41:37,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 16:41:37,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 16:41:37,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 16:41:37,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 04:41:27" (1/3) ... [2022-07-12 16:41:37,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589822e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:41:37, skipping insertion in model container [2022-07-12 16:41:37,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:41:30" (2/3) ... [2022-07-12 16:41:37,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589822e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:41:37, skipping insertion in model container [2022-07-12 16:41:37,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:41:37" (3/3) ... [2022-07-12 16:41:37,708 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2022-07-12 16:41:37,717 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 16:41:37,717 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 16:41:37,767 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 16:41:37,771 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@2c166dcc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@e22aad4 [2022-07-12 16:41:37,771 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 16:41:37,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 1720 states, 1177 states have (on average 1.2752761257434155) internal successors, (1501), 1216 states have internal predecessors, (1501), 427 states have call successors, (427), 115 states have call predecessors, (427), 114 states have return successors, (423), 420 states have call predecessors, (423), 423 states have call successors, (423) [2022-07-12 16:41:37,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-12 16:41:37,796 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:41:37,797 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:41:37,798 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:41:37,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:41:37,802 INFO L85 PathProgramCache]: Analyzing trace with hash -254622005, now seen corresponding path program 1 times [2022-07-12 16:41:37,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:41:37,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297896170] [2022-07-12 16:41:37,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:41:37,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:41:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:41:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:41:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 16:41:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 16:41:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 16:41:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 16:41:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:41:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:41:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:41:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 16:41:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 16:41:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:41:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:41:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:41:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 16:41:38,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 16:41:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:41:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:41:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:41:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 16:41:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 16:41:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 16:41:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 16:41:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:41:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 16:41:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 16:41:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:41:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 16:41:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:41:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-12 16:41:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 16:41:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 16:41:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:38,580 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-12 16:41:38,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:41:38,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297896170] [2022-07-12 16:41:38,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297896170] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:41:38,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:41:38,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 16:41:38,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812107250] [2022-07-12 16:41:38,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:41:38,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:41:38,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:41:38,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:41:38,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:41:38,607 INFO L87 Difference]: Start difference. First operand has 1720 states, 1177 states have (on average 1.2752761257434155) internal successors, (1501), 1216 states have internal predecessors, (1501), 427 states have call successors, (427), 115 states have call predecessors, (427), 114 states have return successors, (423), 420 states have call predecessors, (423), 423 states have call successors, (423) Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:41:41,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:41:43,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:41:46,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:41:48,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:41:50,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:41:50,109 INFO L93 Difference]: Finished difference Result 3492 states and 4827 transitions. [2022-07-12 16:41:50,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:41:50,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 201 [2022-07-12 16:41:50,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:41:50,130 INFO L225 Difference]: With dead ends: 3492 [2022-07-12 16:41:50,130 INFO L226 Difference]: Without dead ends: 1761 [2022-07-12 16:41:50,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:41:50,144 INFO L413 NwaCegarLoop]: 2126 mSDtfsCounter, 1203 mSDsluCounter, 2785 mSDsCounter, 0 mSdLazyCounter, 2163 mSolverCounterSat, 1168 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 4911 SdHoareTripleChecker+Invalid, 3335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1168 IncrementalHoareTripleChecker+Valid, 2163 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-07-12 16:41:50,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1271 Valid, 4911 Invalid, 3335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1168 Valid, 2163 Invalid, 4 Unknown, 0 Unchecked, 11.2s Time] [2022-07-12 16:41:50,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2022-07-12 16:41:50,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1679. [2022-07-12 16:41:50,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1161 states have (on average 1.2411714039621016) internal successors, (1441), 1196 states have internal predecessors, (1441), 404 states have call successors, (404), 113 states have call predecessors, (404), 113 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2022-07-12 16:41:50,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2249 transitions. [2022-07-12 16:41:50,302 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2249 transitions. Word has length 201 [2022-07-12 16:41:50,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:41:50,304 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2249 transitions. [2022-07-12 16:41:50,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:41:50,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2249 transitions. [2022-07-12 16:41:50,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-12 16:41:50,314 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:41:50,314 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:41:50,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 16:41:50,317 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:41:50,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:41:50,318 INFO L85 PathProgramCache]: Analyzing trace with hash 90433789, now seen corresponding path program 1 times [2022-07-12 16:41:50,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:41:50,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96831559] [2022-07-12 16:41:50,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:41:50,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:41:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:41:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:41:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 16:41:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 16:41:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 16:41:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 16:41:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:41:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:41:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:41:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 16:41:50,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 16:41:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:41:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:41:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:41:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 16:41:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 16:41:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:41:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:41:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:41:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 16:41:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 16:41:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 16:41:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 16:41:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:41:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 16:41:50,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 16:41:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:41:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 16:41:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:41:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-12 16:41:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 16:41:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 16:41:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:41:50,823 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-12 16:41:50,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:41:50,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96831559] [2022-07-12 16:41:50,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96831559] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:41:50,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:41:50,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 16:41:50,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547688377] [2022-07-12 16:41:50,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:41:50,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:41:50,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:41:50,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:41:50,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:41:50,826 INFO L87 Difference]: Start difference. First operand 1679 states and 2249 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:41:53,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:41:56,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:41:58,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:01,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:03,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:42:03,473 INFO L93 Difference]: Finished difference Result 2170 states and 2908 transitions. [2022-07-12 16:42:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 16:42:03,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 201 [2022-07-12 16:42:03,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:42:03,482 INFO L225 Difference]: With dead ends: 2170 [2022-07-12 16:42:03,482 INFO L226 Difference]: Without dead ends: 1759 [2022-07-12 16:42:03,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:42:03,485 INFO L413 NwaCegarLoop]: 2082 mSDtfsCounter, 1202 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 1091 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 4809 SdHoareTripleChecker+Invalid, 3192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1091 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-07-12 16:42:03,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1273 Valid, 4809 Invalid, 3192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1091 Valid, 2097 Invalid, 4 Unknown, 0 Unchecked, 12.4s Time] [2022-07-12 16:42:03,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-07-12 16:42:03,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1679. [2022-07-12 16:42:03,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1161 states have (on average 1.2403100775193798) internal successors, (1440), 1196 states have internal predecessors, (1440), 404 states have call successors, (404), 113 states have call predecessors, (404), 113 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2022-07-12 16:42:03,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2248 transitions. [2022-07-12 16:42:03,531 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2248 transitions. Word has length 201 [2022-07-12 16:42:03,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:42:03,534 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2248 transitions. [2022-07-12 16:42:03,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:42:03,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2248 transitions. [2022-07-12 16:42:03,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-12 16:42:03,537 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:42:03,537 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:42:03,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 16:42:03,537 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:42:03,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:42:03,538 INFO L85 PathProgramCache]: Analyzing trace with hash -281687607, now seen corresponding path program 1 times [2022-07-12 16:42:03,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:42:03,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508164703] [2022-07-12 16:42:03,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:42:03,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:42:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 16:42:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 16:42:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 16:42:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 16:42:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:42:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 16:42:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 16:42:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:03,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:42:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 16:42:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 16:42:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:42:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 16:42:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 16:42:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 16:42:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 16:42:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 16:42:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 16:42:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:42:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 16:42:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-12 16:42:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 16:42:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 16:42:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:03,936 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-12 16:42:03,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:42:03,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508164703] [2022-07-12 16:42:03,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508164703] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:42:03,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:42:03,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 16:42:03,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677116156] [2022-07-12 16:42:03,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:42:03,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:42:03,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:42:03,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:42:03,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:42:03,939 INFO L87 Difference]: Start difference. First operand 1679 states and 2248 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:42:06,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:09,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:11,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:12,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:42:12,852 INFO L93 Difference]: Finished difference Result 2170 states and 2906 transitions. [2022-07-12 16:42:12,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 16:42:12,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 201 [2022-07-12 16:42:12,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:42:12,865 INFO L225 Difference]: With dead ends: 2170 [2022-07-12 16:42:12,866 INFO L226 Difference]: Without dead ends: 1759 [2022-07-12 16:42:12,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:42:12,871 INFO L413 NwaCegarLoop]: 2081 mSDtfsCounter, 1201 mSDsluCounter, 2725 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 1091 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 4806 SdHoareTripleChecker+Invalid, 3191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1091 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-07-12 16:42:12,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 4806 Invalid, 3191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1091 Valid, 2097 Invalid, 3 Unknown, 0 Unchecked, 8.8s Time] [2022-07-12 16:42:12,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-07-12 16:42:12,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1679. [2022-07-12 16:42:12,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1161 states have (on average 1.239448751076658) internal successors, (1439), 1196 states have internal predecessors, (1439), 404 states have call successors, (404), 113 states have call predecessors, (404), 113 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2022-07-12 16:42:12,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2247 transitions. [2022-07-12 16:42:12,917 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2247 transitions. Word has length 201 [2022-07-12 16:42:12,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:42:12,918 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2247 transitions. [2022-07-12 16:42:12,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:42:12,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2247 transitions. [2022-07-12 16:42:12,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-07-12 16:42:12,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:42:12,923 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:42:12,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 16:42:12,923 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:42:12,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:42:12,924 INFO L85 PathProgramCache]: Analyzing trace with hash -2069209573, now seen corresponding path program 1 times [2022-07-12 16:42:12,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:42:12,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642149928] [2022-07-12 16:42:12,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:42:12,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:42:13,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 16:42:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 16:42:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 16:42:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 16:42:13,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:42:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 16:42:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 16:42:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:13,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:13,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:42:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 16:42:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 16:42:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:42:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 16:42:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 16:42:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:42:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 16:42:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 16:42:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 16:42:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:42:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 16:42:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 16:42:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-12 16:42:13,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 16:42:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:13,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-12 16:42:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-12 16:42:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-12 16:42:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:13,369 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-12 16:42:13,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:42:13,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642149928] [2022-07-12 16:42:13,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642149928] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:42:13,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:42:13,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 16:42:13,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709359853] [2022-07-12 16:42:13,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:42:13,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 16:42:13,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:42:13,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 16:42:13,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 16:42:13,372 INFO L87 Difference]: Start difference. First operand 1679 states and 2247 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-12 16:42:15,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:17,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:20,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:22,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:24,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:42:24,565 INFO L93 Difference]: Finished difference Result 3415 states and 4600 transitions. [2022-07-12 16:42:24,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:42:24,566 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 227 [2022-07-12 16:42:24,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:42:24,573 INFO L225 Difference]: With dead ends: 3415 [2022-07-12 16:42:24,573 INFO L226 Difference]: Without dead ends: 1759 [2022-07-12 16:42:24,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-07-12 16:42:24,578 INFO L413 NwaCegarLoop]: 2075 mSDtfsCounter, 2873 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2357 mSolverCounterSat, 1526 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3115 SdHoareTripleChecker+Valid, 4550 SdHoareTripleChecker+Invalid, 3887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1526 IncrementalHoareTripleChecker+Valid, 2357 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:42:24,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3115 Valid, 4550 Invalid, 3887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1526 Valid, 2357 Invalid, 4 Unknown, 0 Unchecked, 11.0s Time] [2022-07-12 16:42:24,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-07-12 16:42:24,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1679. [2022-07-12 16:42:24,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1161 states have (on average 1.2385874246339363) internal successors, (1438), 1196 states have internal predecessors, (1438), 404 states have call successors, (404), 113 states have call predecessors, (404), 113 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2022-07-12 16:42:24,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2246 transitions. [2022-07-12 16:42:24,618 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2246 transitions. Word has length 227 [2022-07-12 16:42:24,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:42:24,618 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2246 transitions. [2022-07-12 16:42:24,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-12 16:42:24,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2246 transitions. [2022-07-12 16:42:24,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-12 16:42:24,621 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:42:24,621 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:42:24,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 16:42:24,622 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:42:24,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:42:24,622 INFO L85 PathProgramCache]: Analyzing trace with hash 556520760, now seen corresponding path program 1 times [2022-07-12 16:42:24,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:42:24,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256043033] [2022-07-12 16:42:24,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:42:24,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:42:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 16:42:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 16:42:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 16:42:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 16:42:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:42:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 16:42:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 16:42:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:42:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 16:42:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 16:42:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:42:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 16:42:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 16:42:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 16:42:24,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 16:42:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 16:42:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 16:42:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:42:24,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 16:42:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-12 16:42:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 16:42:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:24,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 16:42:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:25,012 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-12 16:42:25,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:42:25,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256043033] [2022-07-12 16:42:25,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256043033] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:42:25,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:42:25,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 16:42:25,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578212978] [2022-07-12 16:42:25,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:42:25,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 16:42:25,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:42:25,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 16:42:25,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:42:25,017 INFO L87 Difference]: Start difference. First operand 1679 states and 2246 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:42:27,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:29,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:32,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:34,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:37,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:39,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:40,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:42:40,911 INFO L93 Difference]: Finished difference Result 3415 states and 4598 transitions. [2022-07-12 16:42:40,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:42:40,912 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 202 [2022-07-12 16:42:40,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:42:40,919 INFO L225 Difference]: With dead ends: 3415 [2022-07-12 16:42:40,919 INFO L226 Difference]: Without dead ends: 1759 [2022-07-12 16:42:40,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-07-12 16:42:40,925 INFO L413 NwaCegarLoop]: 2073 mSDtfsCounter, 4113 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2358 mSolverCounterSat, 2901 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4113 SdHoareTripleChecker+Valid, 4548 SdHoareTripleChecker+Invalid, 5264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2901 IncrementalHoareTripleChecker+Valid, 2358 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-07-12 16:42:40,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4113 Valid, 4548 Invalid, 5264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2901 Valid, 2358 Invalid, 5 Unknown, 0 Unchecked, 15.7s Time] [2022-07-12 16:42:40,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-07-12 16:42:40,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1679. [2022-07-12 16:42:40,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1161 states have (on average 1.2377260981912144) internal successors, (1437), 1196 states have internal predecessors, (1437), 404 states have call successors, (404), 113 states have call predecessors, (404), 113 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2022-07-12 16:42:40,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2245 transitions. [2022-07-12 16:42:40,977 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2245 transitions. Word has length 202 [2022-07-12 16:42:40,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:42:40,978 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2245 transitions. [2022-07-12 16:42:40,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:42:40,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2245 transitions. [2022-07-12 16:42:40,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-12 16:42:40,980 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:42:40,980 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:42:40,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 16:42:40,981 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:42:40,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:42:40,981 INFO L85 PathProgramCache]: Analyzing trace with hash 825450679, now seen corresponding path program 1 times [2022-07-12 16:42:40,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:42:40,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313658216] [2022-07-12 16:42:40,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:42:40,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:42:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 16:42:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 16:42:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 16:42:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 16:42:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:42:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 16:42:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 16:42:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:42:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 16:42:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 16:42:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:42:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 16:42:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 16:42:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:42:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 16:42:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 16:42:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 16:42:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:42:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 16:42:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 16:42:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-12 16:42:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 16:42:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-12 16:42:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-12 16:42:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-12 16:42:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:41,427 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-12 16:42:41,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:42:41,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313658216] [2022-07-12 16:42:41,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313658216] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:42:41,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:42:41,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 16:42:41,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739828721] [2022-07-12 16:42:41,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:42:41,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 16:42:41,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:42:41,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 16:42:41,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:42:41,430 INFO L87 Difference]: Start difference. First operand 1679 states and 2245 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-12 16:42:44,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:46,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:49,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:51,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:52,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:42:52,785 INFO L93 Difference]: Finished difference Result 3415 states and 4596 transitions. [2022-07-12 16:42:52,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:42:52,785 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 229 [2022-07-12 16:42:52,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:42:52,792 INFO L225 Difference]: With dead ends: 3415 [2022-07-12 16:42:52,792 INFO L226 Difference]: Without dead ends: 1759 [2022-07-12 16:42:52,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-07-12 16:42:52,797 INFO L413 NwaCegarLoop]: 2072 mSDtfsCounter, 4106 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2356 mSolverCounterSat, 2898 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4106 SdHoareTripleChecker+Valid, 4547 SdHoareTripleChecker+Invalid, 5258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2898 IncrementalHoareTripleChecker+Valid, 2356 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-07-12 16:42:52,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4106 Valid, 4547 Invalid, 5258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2898 Valid, 2356 Invalid, 4 Unknown, 0 Unchecked, 11.2s Time] [2022-07-12 16:42:52,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-07-12 16:42:52,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1679. [2022-07-12 16:42:52,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1161 states have (on average 1.2368647717484926) internal successors, (1436), 1196 states have internal predecessors, (1436), 404 states have call successors, (404), 113 states have call predecessors, (404), 113 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2022-07-12 16:42:52,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2244 transitions. [2022-07-12 16:42:52,848 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2244 transitions. Word has length 229 [2022-07-12 16:42:52,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:42:52,848 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2244 transitions. [2022-07-12 16:42:52,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-12 16:42:52,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2244 transitions. [2022-07-12 16:42:52,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-12 16:42:52,851 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:42:52,851 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:42:52,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 16:42:52,851 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:42:52,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:42:52,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1818144712, now seen corresponding path program 1 times [2022-07-12 16:42:52,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:42:52,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890870827] [2022-07-12 16:42:52,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:42:52,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:42:52,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 16:42:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 16:42:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 16:42:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 16:42:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:42:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 16:42:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 16:42:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:42:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 16:42:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 16:42:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:42:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:42:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 16:42:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 16:42:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 16:42:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 16:42:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 16:42:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 16:42:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:42:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 16:42:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:42:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-12 16:42:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 16:42:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 16:42:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:42:53,223 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-12 16:42:53,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:42:53,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890870827] [2022-07-12 16:42:53,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890870827] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:42:53,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:42:53,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 16:42:53,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972649336] [2022-07-12 16:42:53,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:42:53,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 16:42:53,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:42:53,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 16:42:53,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:42:53,225 INFO L87 Difference]: Start difference. First operand 1679 states and 2244 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:42:55,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:42:57,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:01,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:03,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:05,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:43:05,454 INFO L93 Difference]: Finished difference Result 3534 states and 4744 transitions. [2022-07-12 16:43:05,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 16:43:05,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 204 [2022-07-12 16:43:05,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:43:05,462 INFO L225 Difference]: With dead ends: 3534 [2022-07-12 16:43:05,462 INFO L226 Difference]: Without dead ends: 1878 [2022-07-12 16:43:05,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-07-12 16:43:05,467 INFO L413 NwaCegarLoop]: 2125 mSDtfsCounter, 4194 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2587 mSolverCounterSat, 3019 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4194 SdHoareTripleChecker+Valid, 4600 SdHoareTripleChecker+Invalid, 5610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3019 IncrementalHoareTripleChecker+Valid, 2587 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-07-12 16:43:05,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4194 Valid, 4600 Invalid, 5610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3019 Valid, 2587 Invalid, 4 Unknown, 0 Unchecked, 11.8s Time] [2022-07-12 16:43:05,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2022-07-12 16:43:05,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1758. [2022-07-12 16:43:05,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1217 states have (on average 1.2308956450287591) internal successors, (1498), 1253 states have internal predecessors, (1498), 417 states have call successors, (417), 123 states have call predecessors, (417), 123 states have return successors, (417), 413 states have call predecessors, (417), 417 states have call successors, (417) [2022-07-12 16:43:05,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2332 transitions. [2022-07-12 16:43:05,535 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2332 transitions. Word has length 204 [2022-07-12 16:43:05,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:43:05,535 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2332 transitions. [2022-07-12 16:43:05,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:43:05,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2332 transitions. [2022-07-12 16:43:05,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-07-12 16:43:05,539 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:43:05,539 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:43:05,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 16:43:05,539 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:43:05,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:43:05,540 INFO L85 PathProgramCache]: Analyzing trace with hash 2081127351, now seen corresponding path program 1 times [2022-07-12 16:43:05,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:43:05,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871537538] [2022-07-12 16:43:05,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:43:05,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:43:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:43:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 16:43:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 16:43:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 16:43:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 16:43:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:43:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:43:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 16:43:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 16:43:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:43:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:43:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 16:43:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 16:43:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:43:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:43:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 16:43:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 16:43:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 16:43:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 16:43:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 16:43:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 16:43:05,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:43:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 16:43:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-12 16:43:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 16:43:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 16:43:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:05,934 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-12 16:43:05,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:43:05,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871537538] [2022-07-12 16:43:05,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871537538] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:43:05,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:43:05,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 16:43:05,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960250873] [2022-07-12 16:43:05,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:43:05,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 16:43:05,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:43:05,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 16:43:05,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:43:05,937 INFO L87 Difference]: Start difference. First operand 1758 states and 2332 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:43:08,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:10,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:14,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:16,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:18,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:20,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:22,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:43:22,295 INFO L93 Difference]: Finished difference Result 3613 states and 4831 transitions. [2022-07-12 16:43:22,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 16:43:22,295 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 205 [2022-07-12 16:43:22,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:43:22,304 INFO L225 Difference]: With dead ends: 3613 [2022-07-12 16:43:22,304 INFO L226 Difference]: Without dead ends: 1878 [2022-07-12 16:43:22,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-07-12 16:43:22,310 INFO L413 NwaCegarLoop]: 2124 mSDtfsCounter, 4189 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2586 mSolverCounterSat, 3019 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4189 SdHoareTripleChecker+Valid, 4599 SdHoareTripleChecker+Invalid, 5611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3019 IncrementalHoareTripleChecker+Valid, 2586 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-07-12 16:43:22,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4189 Valid, 4599 Invalid, 5611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3019 Valid, 2586 Invalid, 6 Unknown, 0 Unchecked, 15.9s Time] [2022-07-12 16:43:22,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2022-07-12 16:43:22,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1758. [2022-07-12 16:43:22,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1217 states have (on average 1.2300739523418243) internal successors, (1497), 1253 states have internal predecessors, (1497), 417 states have call successors, (417), 123 states have call predecessors, (417), 123 states have return successors, (417), 413 states have call predecessors, (417), 417 states have call successors, (417) [2022-07-12 16:43:22,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2331 transitions. [2022-07-12 16:43:22,391 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2331 transitions. Word has length 205 [2022-07-12 16:43:22,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:43:22,391 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2331 transitions. [2022-07-12 16:43:22,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:43:22,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2331 transitions. [2022-07-12 16:43:22,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-12 16:43:22,394 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:43:22,394 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:43:22,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 16:43:22,395 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:43:22,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:43:22,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1409208020, now seen corresponding path program 1 times [2022-07-12 16:43:22,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:43:22,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747273423] [2022-07-12 16:43:22,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:43:22,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:43:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:43:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 16:43:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 16:43:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 16:43:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 16:43:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:43:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:43:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 16:43:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 16:43:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:43:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:43:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 16:43:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 16:43:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:43:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:43:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 16:43:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 16:43:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:43:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:43:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 16:43:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 16:43:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 16:43:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:43:22,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 16:43:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 16:43:22,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-12 16:43:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 16:43:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-12 16:43:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-12 16:43:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-12 16:43:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:22,780 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-12 16:43:22,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:43:22,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747273423] [2022-07-12 16:43:22,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747273423] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:43:22,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:43:22,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 16:43:22,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599909399] [2022-07-12 16:43:22,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:43:22,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 16:43:22,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:43:22,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 16:43:22,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:43:22,783 INFO L87 Difference]: Start difference. First operand 1758 states and 2331 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-12 16:43:25,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:27,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:30,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:32,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:34,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:43:34,026 INFO L93 Difference]: Finished difference Result 3607 states and 4817 transitions. [2022-07-12 16:43:34,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:43:34,026 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 232 [2022-07-12 16:43:34,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:43:34,034 INFO L225 Difference]: With dead ends: 3607 [2022-07-12 16:43:34,034 INFO L226 Difference]: Without dead ends: 1872 [2022-07-12 16:43:34,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-07-12 16:43:34,041 INFO L413 NwaCegarLoop]: 2069 mSDtfsCounter, 4091 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 2898 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4091 SdHoareTripleChecker+Valid, 4544 SdHoareTripleChecker+Invalid, 5255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2898 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:43:34,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4091 Valid, 4544 Invalid, 5255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2898 Valid, 2353 Invalid, 4 Unknown, 0 Unchecked, 11.0s Time] [2022-07-12 16:43:34,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2022-07-12 16:43:34,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1758. [2022-07-12 16:43:34,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1217 states have (on average 1.2292522596548892) internal successors, (1496), 1253 states have internal predecessors, (1496), 417 states have call successors, (417), 123 states have call predecessors, (417), 123 states have return successors, (417), 413 states have call predecessors, (417), 417 states have call successors, (417) [2022-07-12 16:43:34,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2330 transitions. [2022-07-12 16:43:34,100 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2330 transitions. Word has length 232 [2022-07-12 16:43:34,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:43:34,101 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2330 transitions. [2022-07-12 16:43:34,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-12 16:43:34,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2330 transitions. [2022-07-12 16:43:34,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-07-12 16:43:34,103 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:43:34,103 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:43:34,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 16:43:34,104 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:43:34,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:43:34,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1892508177, now seen corresponding path program 1 times [2022-07-12 16:43:34,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:43:34,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629128484] [2022-07-12 16:43:34,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:43:34,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:43:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:43:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 16:43:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 16:43:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 16:43:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 16:43:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:43:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:43:34,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 16:43:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 16:43:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:43:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:43:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 16:43:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 16:43:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:43:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:43:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 16:43:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 16:43:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:43:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:43:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 16:43:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 16:43:34,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 16:43:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:43:34,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 16:43:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 16:43:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-12 16:43:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 16:43:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-12 16:43:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-12 16:43:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-12 16:43:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:34,461 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-12 16:43:34,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:43:34,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629128484] [2022-07-12 16:43:34,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629128484] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:43:34,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:43:34,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 16:43:34,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529828047] [2022-07-12 16:43:34,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:43:34,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 16:43:34,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:43:34,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 16:43:34,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:43:34,464 INFO L87 Difference]: Start difference. First operand 1758 states and 2330 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-12 16:43:37,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:39,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:41,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:43,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:45,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:43:45,612 INFO L93 Difference]: Finished difference Result 3607 states and 4815 transitions. [2022-07-12 16:43:45,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:43:45,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 233 [2022-07-12 16:43:45,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:43:45,619 INFO L225 Difference]: With dead ends: 3607 [2022-07-12 16:43:45,619 INFO L226 Difference]: Without dead ends: 1872 [2022-07-12 16:43:45,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-07-12 16:43:45,624 INFO L413 NwaCegarLoop]: 2068 mSDtfsCounter, 4086 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2352 mSolverCounterSat, 2898 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4086 SdHoareTripleChecker+Valid, 4543 SdHoareTripleChecker+Invalid, 5254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2898 IncrementalHoareTripleChecker+Valid, 2352 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:43:45,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4086 Valid, 4543 Invalid, 5254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2898 Valid, 2352 Invalid, 4 Unknown, 0 Unchecked, 11.0s Time] [2022-07-12 16:43:45,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2022-07-12 16:43:45,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1758. [2022-07-12 16:43:45,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1217 states have (on average 1.228430566967954) internal successors, (1495), 1253 states have internal predecessors, (1495), 417 states have call successors, (417), 123 states have call predecessors, (417), 123 states have return successors, (417), 413 states have call predecessors, (417), 417 states have call successors, (417) [2022-07-12 16:43:45,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2329 transitions. [2022-07-12 16:43:45,684 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2329 transitions. Word has length 233 [2022-07-12 16:43:45,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:43:45,685 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2329 transitions. [2022-07-12 16:43:45,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-12 16:43:45,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2329 transitions. [2022-07-12 16:43:45,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-07-12 16:43:45,687 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:43:45,687 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:43:45,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 16:43:45,687 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:43:45,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:43:45,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1645263744, now seen corresponding path program 1 times [2022-07-12 16:43:45,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:43:45,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991843649] [2022-07-12 16:43:45,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:43:45,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:43:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:43:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 16:43:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 16:43:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 16:43:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 16:43:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:43:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:43:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 16:43:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 16:43:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:43:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:43:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 16:43:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 16:43:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:43:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:43:45,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 16:43:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 16:43:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 16:43:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 16:43:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 16:43:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 16:43:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:43:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 16:43:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:43:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-12 16:43:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 16:43:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:45,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 16:43:45,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:43:46,003 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-12 16:43:46,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:43:46,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991843649] [2022-07-12 16:43:46,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991843649] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:43:46,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:43:46,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 16:43:46,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078201158] [2022-07-12 16:43:46,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:43:46,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 16:43:46,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:43:46,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 16:43:46,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:43:46,005 INFO L87 Difference]: Start difference. First operand 1758 states and 2329 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:43:48,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:50,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:53,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:55,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:57,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:43:59,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:44:01,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:44:01,794 INFO L93 Difference]: Finished difference Result 3607 states and 4813 transitions. [2022-07-12 16:44:01,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:44:01,794 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 208 [2022-07-12 16:44:01,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:44:01,802 INFO L225 Difference]: With dead ends: 3607 [2022-07-12 16:44:01,803 INFO L226 Difference]: Without dead ends: 1872 [2022-07-12 16:44:01,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-07-12 16:44:01,808 INFO L413 NwaCegarLoop]: 2067 mSDtfsCounter, 4083 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 2901 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4083 SdHoareTripleChecker+Valid, 4542 SdHoareTripleChecker+Invalid, 5258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2901 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-07-12 16:44:01,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4083 Valid, 4542 Invalid, 5258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2901 Valid, 2351 Invalid, 6 Unknown, 0 Unchecked, 15.6s Time] [2022-07-12 16:44:01,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2022-07-12 16:44:01,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1758. [2022-07-12 16:44:01,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1217 states have (on average 1.227608874281019) internal successors, (1494), 1253 states have internal predecessors, (1494), 417 states have call successors, (417), 123 states have call predecessors, (417), 123 states have return successors, (417), 413 states have call predecessors, (417), 417 states have call successors, (417) [2022-07-12 16:44:01,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2328 transitions. [2022-07-12 16:44:01,913 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2328 transitions. Word has length 208 [2022-07-12 16:44:01,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:44:01,914 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2328 transitions. [2022-07-12 16:44:01,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:44:01,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2328 transitions. [2022-07-12 16:44:01,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-12 16:44:01,917 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:44:01,917 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:44:01,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 16:44:01,917 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:44:01,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:44:01,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1064651025, now seen corresponding path program 1 times [2022-07-12 16:44:01,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:44:01,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525235502] [2022-07-12 16:44:01,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:44:01,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:44:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:44:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 16:44:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 16:44:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 16:44:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 16:44:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:44:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:44:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 16:44:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 16:44:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:44:02,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:44:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 16:44:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 16:44:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:44:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:44:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 16:44:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 16:44:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 16:44:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 16:44:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 16:44:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 16:44:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:44:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 16:44:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-12 16:44:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 16:44:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 16:44:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:02,273 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-12 16:44:02,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:44:02,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525235502] [2022-07-12 16:44:02,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525235502] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:44:02,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:44:02,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 16:44:02,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277459965] [2022-07-12 16:44:02,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:44:02,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 16:44:02,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:44:02,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 16:44:02,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:44:02,276 INFO L87 Difference]: Start difference. First operand 1758 states and 2328 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:44:04,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:44:06,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:44:10,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:44:12,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:44:14,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:44:16,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:44:18,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:44:18,285 INFO L93 Difference]: Finished difference Result 3607 states and 4811 transitions. [2022-07-12 16:44:18,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:44:18,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 209 [2022-07-12 16:44:18,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:44:18,292 INFO L225 Difference]: With dead ends: 3607 [2022-07-12 16:44:18,292 INFO L226 Difference]: Without dead ends: 1872 [2022-07-12 16:44:18,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-07-12 16:44:18,297 INFO L413 NwaCegarLoop]: 2066 mSDtfsCounter, 4078 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2350 mSolverCounterSat, 2901 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4078 SdHoareTripleChecker+Valid, 4541 SdHoareTripleChecker+Invalid, 5257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2901 IncrementalHoareTripleChecker+Valid, 2350 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-07-12 16:44:18,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4078 Valid, 4541 Invalid, 5257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2901 Valid, 2350 Invalid, 6 Unknown, 0 Unchecked, 15.7s Time] [2022-07-12 16:44:18,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2022-07-12 16:44:18,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1758. [2022-07-12 16:44:18,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1217 states have (on average 1.2267871815940838) internal successors, (1493), 1253 states have internal predecessors, (1493), 417 states have call successors, (417), 123 states have call predecessors, (417), 123 states have return successors, (417), 413 states have call predecessors, (417), 417 states have call successors, (417) [2022-07-12 16:44:18,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2327 transitions. [2022-07-12 16:44:18,367 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2327 transitions. Word has length 209 [2022-07-12 16:44:18,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:44:18,367 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2327 transitions. [2022-07-12 16:44:18,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:44:18,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2327 transitions. [2022-07-12 16:44:18,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-12 16:44:18,370 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:44:18,370 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:44:18,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 16:44:18,370 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:44:18,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:44:18,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1198400860, now seen corresponding path program 1 times [2022-07-12 16:44:18,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:44:18,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201993815] [2022-07-12 16:44:18,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:44:18,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:44:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:44:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 16:44:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 16:44:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 16:44:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 16:44:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:44:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:44:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 16:44:18,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 16:44:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:44:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:44:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 16:44:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 16:44:18,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:44:18,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:44:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 16:44:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 16:44:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 16:44:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 16:44:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 16:44:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 16:44:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:44:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 16:44:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-12 16:44:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 16:44:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 16:44:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:18,717 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-12 16:44:18,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:44:18,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201993815] [2022-07-12 16:44:18,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201993815] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:44:18,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:44:18,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 16:44:18,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948941773] [2022-07-12 16:44:18,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:44:18,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 16:44:18,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:44:18,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 16:44:18,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:44:18,719 INFO L87 Difference]: Start difference. First operand 1758 states and 2327 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:44:21,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:44:23,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:44:26,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:44:28,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:44:30,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:44:32,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:44:34,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:44:34,684 INFO L93 Difference]: Finished difference Result 3607 states and 4809 transitions. [2022-07-12 16:44:34,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:44:34,685 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 210 [2022-07-12 16:44:34,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:44:34,692 INFO L225 Difference]: With dead ends: 3607 [2022-07-12 16:44:34,692 INFO L226 Difference]: Without dead ends: 1872 [2022-07-12 16:44:34,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-07-12 16:44:34,697 INFO L413 NwaCegarLoop]: 2065 mSDtfsCounter, 4073 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2349 mSolverCounterSat, 2901 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4073 SdHoareTripleChecker+Valid, 4540 SdHoareTripleChecker+Invalid, 5256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2901 IncrementalHoareTripleChecker+Valid, 2349 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-07-12 16:44:34,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4073 Valid, 4540 Invalid, 5256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2901 Valid, 2349 Invalid, 6 Unknown, 0 Unchecked, 15.7s Time] [2022-07-12 16:44:34,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2022-07-12 16:44:34,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1758. [2022-07-12 16:44:34,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1217 states have (on average 1.2259654889071487) internal successors, (1492), 1253 states have internal predecessors, (1492), 417 states have call successors, (417), 123 states have call predecessors, (417), 123 states have return successors, (417), 413 states have call predecessors, (417), 417 states have call successors, (417) [2022-07-12 16:44:34,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2326 transitions. [2022-07-12 16:44:34,767 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2326 transitions. Word has length 210 [2022-07-12 16:44:34,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:44:34,768 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2326 transitions. [2022-07-12 16:44:34,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 16:44:34,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2326 transitions. [2022-07-12 16:44:34,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-12 16:44:34,771 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:44:34,771 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:44:34,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 16:44:34,771 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:44:34,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:44:34,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1617656615, now seen corresponding path program 1 times [2022-07-12 16:44:34,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:44:34,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024404772] [2022-07-12 16:44:34,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:44:34,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:44:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:44:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 16:44:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 16:44:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 16:44:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 16:44:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:44:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:44:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 16:44:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 16:44:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:44:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:44:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 16:44:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 16:44:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:44:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:44:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 16:44:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 16:44:35,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:44:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:44:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 16:44:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 16:44:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 16:44:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 16:44:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 16:44:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 16:44:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-12 16:44:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 16:44:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-12 16:44:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-12 16:44:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-12 16:44:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:35,559 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-07-12 16:44:35,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:44:35,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024404772] [2022-07-12 16:44:35,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024404772] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 16:44:35,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937615777] [2022-07-12 16:44:35,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:44:35,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 16:44:35,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 16:44:35,562 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) [2022-07-12 16:44:35,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 16:44:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:36,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 2917 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-12 16:44:36,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:44:36,515 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-07-12 16:44:36,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:44:36,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937615777] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:44:36,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:44:36,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14] total 21 [2022-07-12 16:44:36,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500179925] [2022-07-12 16:44:36,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:44:36,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 16:44:36,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:44:36,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 16:44:36,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2022-07-12 16:44:36,517 INFO L87 Difference]: Start difference. First operand 1758 states and 2326 transitions. Second operand has 12 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 4 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-12 16:44:36,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:44:36,890 INFO L93 Difference]: Finished difference Result 2262 states and 2951 transitions. [2022-07-12 16:44:36,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 16:44:36,891 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 4 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 237 [2022-07-12 16:44:36,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:44:36,897 INFO L225 Difference]: With dead ends: 2262 [2022-07-12 16:44:36,897 INFO L226 Difference]: Without dead ends: 1758 [2022-07-12 16:44:36,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=609, Unknown=0, NotChecked=0, Total=702 [2022-07-12 16:44:36,900 INFO L413 NwaCegarLoop]: 2207 mSDtfsCounter, 15 mSDsluCounter, 21987 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 24194 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 16:44:36,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 24194 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 16:44:36,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2022-07-12 16:44:36,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1758. [2022-07-12 16:44:36,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1217 states have (on average 1.2243221035332785) internal successors, (1490), 1253 states have internal predecessors, (1490), 417 states have call successors, (417), 123 states have call predecessors, (417), 123 states have return successors, (417), 413 states have call predecessors, (417), 417 states have call successors, (417) [2022-07-12 16:44:36,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2324 transitions. [2022-07-12 16:44:36,973 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2324 transitions. Word has length 237 [2022-07-12 16:44:36,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:44:36,974 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2324 transitions. [2022-07-12 16:44:36,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 4 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-12 16:44:36,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2324 transitions. [2022-07-12 16:44:36,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-12 16:44:36,976 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:44:36,976 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:44:37,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 16:44:37,191 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,SelfDestructingSolverStorable13 [2022-07-12 16:44:37,192 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:44:37,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:44:37,193 INFO L85 PathProgramCache]: Analyzing trace with hash 16756898, now seen corresponding path program 1 times [2022-07-12 16:44:37,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:44:37,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824010510] [2022-07-12 16:44:37,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:44:37,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:44:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 16:44:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:44:38,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 16:44:38,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 16:44:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 16:44:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 16:44:38,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 16:44:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:44:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:44:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 16:44:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 16:44:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:44:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:44:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 16:44:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 16:44:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:38,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:44:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:44:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 16:44:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 16:44:38,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-12 16:44:38,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-12 16:44:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 16:44:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 16:44:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-12 16:44:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 16:44:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:44:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-12 16:44:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-12 16:44:38,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 16:44:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:38,305 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-12 16:44:38,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:44:38,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824010510] [2022-07-12 16:44:38,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824010510] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 16:44:38,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687907259] [2022-07-12 16:44:38,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:44:38,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 16:44:38,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 16:44:38,307 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) [2022-07-12 16:44:38,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 16:44:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:44:39,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 2930 conjuncts, 50 conjunts are in the unsatisfiable core [2022-07-12 16:44:39,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:44:39,243 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 105 proven. 3 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-07-12 16:44:39,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:44:39,482 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-12 16:44:39,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687907259] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 16:44:39,483 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 16:44:39,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 15] total 20 [2022-07-12 16:44:39,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765393903] [2022-07-12 16:44:39,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 16:44:39,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-07-12 16:44:39,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:44:39,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-07-12 16:44:39,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2022-07-12 16:44:39,485 INFO L87 Difference]: Start difference. First operand 1758 states and 2324 transitions. Second operand has 20 states, 19 states have (on average 8.736842105263158) internal successors, (166), 16 states have internal predecessors, (166), 7 states have call successors, (60), 4 states have call predecessors, (60), 5 states have return successors, (53), 7 states have call predecessors, (53), 7 states have call successors, (53) [2022-07-12 16:44:45,342 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:44:47,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:44:50,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:44:52,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:44:54,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:44:56,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:44:58,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:45:00,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:45:05,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:45:08,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:45:08,433 INFO L93 Difference]: Finished difference Result 2378 states and 3128 transitions. [2022-07-12 16:45:08,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-12 16:45:08,433 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.736842105263158) internal successors, (166), 16 states have internal predecessors, (166), 7 states have call successors, (60), 4 states have call predecessors, (60), 5 states have return successors, (53), 7 states have call predecessors, (53), 7 states have call successors, (53) Word has length 229 [2022-07-12 16:45:08,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:45:08,456 INFO L225 Difference]: With dead ends: 2378 [2022-07-12 16:45:08,457 INFO L226 Difference]: Without dead ends: 1870 [2022-07-12 16:45:08,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 519 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=149, Invalid=843, Unknown=0, NotChecked=0, Total=992 [2022-07-12 16:45:08,462 INFO L413 NwaCegarLoop]: 2048 mSDtfsCounter, 1202 mSDsluCounter, 16907 mSDsCounter, 0 mSdLazyCounter, 17298 mSolverCounterSat, 1128 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 18955 SdHoareTripleChecker+Invalid, 18434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1128 IncrementalHoareTripleChecker+Valid, 17298 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.4s IncrementalHoareTripleChecker+Time [2022-07-12 16:45:08,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 18955 Invalid, 18434 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1128 Valid, 17298 Invalid, 8 Unknown, 0 Unchecked, 28.4s Time] [2022-07-12 16:45:08,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1870 states. [2022-07-12 16:45:08,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1870 to 1756. [2022-07-12 16:45:08,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1756 states, 1216 states have (on average 1.2236842105263157) internal successors, (1488), 1252 states have internal predecessors, (1488), 416 states have call successors, (416), 123 states have call predecessors, (416), 123 states have return successors, (416), 412 states have call predecessors, (416), 416 states have call successors, (416) [2022-07-12 16:45:08,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 2320 transitions. [2022-07-12 16:45:08,535 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 2320 transitions. Word has length 229 [2022-07-12 16:45:08,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:45:08,535 INFO L495 AbstractCegarLoop]: Abstraction has 1756 states and 2320 transitions. [2022-07-12 16:45:08,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 8.736842105263158) internal successors, (166), 16 states have internal predecessors, (166), 7 states have call successors, (60), 4 states have call predecessors, (60), 5 states have return successors, (53), 7 states have call predecessors, (53), 7 states have call successors, (53) [2022-07-12 16:45:08,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 2320 transitions. [2022-07-12 16:45:08,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-07-12 16:45:08,539 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:45:08,540 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:45:08,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 16:45:08,747 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,SelfDestructingSolverStorable14 [2022-07-12 16:45:08,748 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 16:45:08,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:45:08,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1029413118, now seen corresponding path program 1 times [2022-07-12 16:45:08,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 16:45:08,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113349910] [2022-07-12 16:45:08,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:45:08,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 16:45:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 16:45:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 16:45:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 16:45:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:45:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:45:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:45:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 16:45:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:45:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:45:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:45:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 16:45:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:45:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:45:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:45:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 16:45:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 16:45:09,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-12 16:45:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 16:45:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:45:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 16:45:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 16:45:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 16:45:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 16:45:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:45:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:45:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:45:09,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-12 16:45:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 16:45:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:45:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:45:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:45:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-12 16:45:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-12 16:45:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:45:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 16:45:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 16:45:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 16:45:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-12 16:45:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-12 16:45:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-07-12 16:45:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:45:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 16:45:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 16:45:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-12 16:45:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-12 16:45:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 16:45:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-07-12 16:45:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-12 16:45:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-12 16:45:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:09,547 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 3 proven. 77 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2022-07-12 16:45:09,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 16:45:09,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113349910] [2022-07-12 16:45:09,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113349910] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 16:45:09,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471136712] [2022-07-12 16:45:09,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:45:09,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 16:45:09,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 16:45:09,549 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) [2022-07-12 16:45:09,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 16:45:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:45:13,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 3251 conjuncts, 40 conjunts are in the unsatisfiable core [2022-07-12 16:45:13,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:45:13,209 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 229 proven. 3 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2022-07-12 16:45:13,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:45:13,550 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 3 proven. 72 refuted. 0 times theorem prover too weak. 621 trivial. 0 not checked. [2022-07-12 16:45:13,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471136712] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 16:45:13,551 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 16:45:13,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 8] total 17 [2022-07-12 16:45:13,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280070264] [2022-07-12 16:45:13,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 16:45:13,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-12 16:45:13,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 16:45:13,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-12 16:45:13,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-07-12 16:45:13,553 INFO L87 Difference]: Start difference. First operand 1756 states and 2320 transitions. Second operand has 17 states, 16 states have (on average 11.8125) internal successors, (189), 12 states have internal predecessors, (189), 6 states have call successors, (84), 5 states have call predecessors, (84), 5 states have return successors, (73), 6 states have call predecessors, (73), 6 states have call successors, (73) [2022-07-12 16:45:18,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:45:20,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:45:23,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:45:25,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:45:27,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:45:29,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:45:31,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:45:33,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 16:45:35,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []