/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 04:41:38,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 04:41:38,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 04:41:38,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 04:41:38,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 04:41:38,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 04:41:38,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 04:41:38,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 04:41:38,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 04:41:38,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 04:41:38,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 04:41:38,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 04:41:38,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 04:41:38,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 04:41:38,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 04:41:38,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 04:41:38,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 04:41:38,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 04:41:38,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 04:41:38,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 04:41:38,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 04:41:38,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 04:41:38,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 04:41:38,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 04:41:38,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 04:41:38,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 04:41:38,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 04:41:38,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 04:41:38,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 04:41:38,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 04:41:38,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 04:41:38,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 04:41:38,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 04:41:38,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 04:41:38,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 04:41:38,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 04:41:38,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 04:41:38,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 04:41:38,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 04:41:38,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 04:41:38,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 04:41:38,192 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 04:41:38,211 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 04:41:38,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 04:41:38,211 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 04:41:38,212 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 04:41:38,212 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 04:41:38,212 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 04:41:38,213 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 04:41:38,213 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 04:41:38,213 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 04:41:38,213 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 04:41:38,213 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 04:41:38,213 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 04:41:38,213 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 04:41:38,213 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 04:41:38,213 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 04:41:38,214 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 04:41:38,214 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 04:41:38,214 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 04:41:38,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 04:41:38,214 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 04:41:38,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 04:41:38,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 04:41:38,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 04:41:38,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 04:41:38,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 04:41:38,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 04:41:38,215 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 04:41:38,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 04:41:38,215 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 04:41:38,215 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 04:41:38,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 04:41:38,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 04:41:38,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:41:38,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 04:41:38,216 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 04:41:38,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 04:41:38,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 04:41:38,216 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 04:41:38,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 04:41:38,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 04:41:38,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 04:41:38,217 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 04:41:38,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 04:41:38,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 04:41:38,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 04:41:38,477 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 04:41:38,478 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 04:41:38,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i [2023-04-03 04:41:39,655 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 04:41:40,133 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 04:41:40,133 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i [2023-04-03 04:41:40,169 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69982cf7c/6a0d6af431d3409e892b5846084f3483/FLAGd1541f943 [2023-04-03 04:41:40,188 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69982cf7c/6a0d6af431d3409e892b5846084f3483 [2023-04-03 04:41:40,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 04:41:40,192 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 04:41:40,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 04:41:40,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 04:41:40,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 04:41:40,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:41:40" (1/1) ... [2023-04-03 04:41:40,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d9d68a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:41:40, skipping insertion in model container [2023-04-03 04:41:40,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:41:40" (1/1) ... [2023-04-03 04:41:40,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 04:41:40,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 04:41:40,874 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i[161908,161921] [2023-04-03 04:41:41,309 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:41:41,341 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 04:41:41,444 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i[161908,161921] [2023-04-03 04:41:41,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:41:41,595 WARN L667 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 04:41:41,601 INFO L208 MainTranslator]: Completed translation [2023-04-03 04:41:41,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:41:41 WrapperNode [2023-04-03 04:41:41,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 04:41:41,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 04:41:41,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 04:41:41,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 04:41:41,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:41:41" (1/1) ... [2023-04-03 04:41:41,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:41:41" (1/1) ... [2023-04-03 04:41:41,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:41:41" (1/1) ... [2023-04-03 04:41:41,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:41:41" (1/1) ... [2023-04-03 04:41:41,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:41:41" (1/1) ... [2023-04-03 04:41:41,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:41:41" (1/1) ... [2023-04-03 04:41:41,772 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:41:41" (1/1) ... [2023-04-03 04:41:41,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:41:41" (1/1) ... [2023-04-03 04:41:41,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 04:41:41,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 04:41:41,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 04:41:41,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 04:41:41,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:41:41" (1/1) ... [2023-04-03 04:41:41,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:41:41,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:41:41,830 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) [2023-04-03 04:41:41,865 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 [2023-04-03 04:41:41,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 04:41:41,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 04:41:41,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-04-03 04:41:41,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2023-04-03 04:41:41,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-04-03 04:41:41,885 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 04:41:41,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-04-03 04:41:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-04-03 04:41:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-03 04:41:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-03 04:41:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-04-03 04:41:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2023-04-03 04:41:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2023-04-03 04:41:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2023-04-03 04:41:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2023-04-03 04:41:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 04:41:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 04:41:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 04:41:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 04:41:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 04:41:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 04:41:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 04:41:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 04:41:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-03 04:41:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-04-03 04:41:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_header_cloned [2023-04-03 04:41:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2023-04-03 04:41:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_mac_header [2023-04-03 04:41:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2023-04-03 04:41:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb_ip_align [2023-04-03 04:41:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2023-04-03 04:41:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_cow [2023-04-03 04:41:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow_head [2023-04-03 04:41:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hdr [2023-04-03 04:41:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure vlan_hw_offload_capable [2023-04-03 04:41:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure vlan_insert_tag [2023-04-03 04:41:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_put_tag [2023-04-03 04:41:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2023-04-03 04:41:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure vlan_put_tag [2023-04-03 04:41:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_get_tag [2023-04-03 04:41:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_get_tag [2023-04-03 04:41:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure vlan_get_tag [2023-04-03 04:41:41,891 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_manage_power [2023-04-03 04:41:41,891 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_wdm_manage_power [2023-04-03 04:41:41,891 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_bind [2023-04-03 04:41:41,891 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_unbind [2023-04-03 04:41:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_tx_fixup [2023-04-03 04:41:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_process_dgram [2023-04-03 04:41:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_rx_fixup [2023-04-03 04:41:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_suspend [2023-04-03 04:41:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_resume [2023-04-03 04:41:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_driver_init [2023-04-03 04:41:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_driver_exit [2023-04-03 04:41:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2023-04-03 04:41:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_3 [2023-04-03 04:41:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2023-04-03 04:41:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 04:41:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_autopm_get_interface_2 [2023-04-03 04:41:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_autopm_put_interface_3 [2023-04-03 04:41:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_4 [2023-04-03 04:41:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_7 [2023-04-03 04:41:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_8 [2023-04-03 04:41:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-04-03 04:41:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2023-04-03 04:41:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2023-04-03 04:41:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2023-04-03 04:41:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-04-03 04:41:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-04-03 04:41:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2023-04-03 04:41:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2023-04-03 04:41:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-04-03 04:41:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2023-04-03 04:41:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2023-04-03 04:41:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2023-04-03 04:41:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2023-04-03 04:41:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2023-04-03 04:41:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2023-04-03 04:41:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2023-04-03 04:41:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 04:41:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-04-03 04:41:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-04-03 04:41:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2023-04-03 04:41:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2023-04-03 04:41:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2023-04-03 04:41:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_bind_common [2023-04-03 04:41:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_fill_tx_frame [2023-04-03 04:41:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_rx_verify_ndp16 [2023-04-03 04:41:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_rx_verify_nth16 [2023-04-03 04:41:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_select_altsetting [2023-04-03 04:41:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_unbind [2023-04-03 04:41:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-04-03 04:41:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-04-03 04:41:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 04:41:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-04-03 04:41:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2023-04-03 04:41:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-04-03 04:41:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-04-03 04:41:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-04-03 04:41:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_cdc_wdm_register [2023-04-03 04:41:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-03 04:41:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-03 04:41:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2023-04-03 04:41:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2023-04-03 04:41:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2023-04-03 04:41:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2023-04-03 04:41:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2023-04-03 04:41:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 04:41:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 04:41:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 04:41:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-03 04:41:41,901 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2023-04-03 04:41:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 04:41:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 04:41:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 04:41:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 04:41:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 04:41:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 04:41:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 04:41:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-03 04:41:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 04:41:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2023-04-03 04:41:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-04-03 04:41:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-04-03 04:41:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-04-03 04:41:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-04-03 04:41:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-03 04:41:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-03 04:41:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-04-03 04:41:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-04-03 04:41:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 04:41:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2023-04-03 04:41:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2023-04-03 04:41:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2023-04-03 04:41:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2023-04-03 04:41:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2023-04-03 04:41:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2023-04-03 04:41:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_4 [2023-04-03 04:41:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_autopm_get_interface_2 [2023-04-03 04:41:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_autopm_put_interface_3 [2023-04-03 04:41:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-03 04:41:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_7 [2023-04-03 04:41:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-03 04:41:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_8 [2023-04-03 04:41:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2023-04-03 04:41:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2023-04-03 04:41:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2023-04-03 04:41:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 04:41:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 04:41:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 04:41:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 04:41:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 04:41:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 04:41:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 04:41:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 04:41:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 04:41:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 04:41:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 04:41:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 04:41:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 04:41:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-03 04:41:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2023-04-03 04:41:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_3 [2023-04-03 04:41:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2023-04-03 04:41:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-04-03 04:41:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2023-04-03 04:41:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-04-03 04:41:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 04:41:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure skb_header_cloned [2023-04-03 04:41:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-04-03 04:41:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-04-03 04:41:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-04-03 04:41:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2023-04-03 04:41:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure skb_mac_header [2023-04-03 04:41:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2023-04-03 04:41:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 04:41:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2023-04-03 04:41:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb_ip_align [2023-04-03 04:41:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2023-04-03 04:41:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_cow [2023-04-03 04:41:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow_head [2023-04-03 04:41:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hdr [2023-04-03 04:41:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-04-03 04:41:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-04-03 04:41:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure vlan_hw_offload_capable [2023-04-03 04:41:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure vlan_insert_tag [2023-04-03 04:41:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2023-04-03 04:41:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_put_tag [2023-04-03 04:41:41,918 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2023-04-03 04:41:41,918 INFO L130 BoogieDeclarations]: Found specification of procedure vlan_put_tag [2023-04-03 04:41:41,918 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_get_tag [2023-04-03 04:41:41,918 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_get_tag [2023-04-03 04:41:41,918 INFO L130 BoogieDeclarations]: Found specification of procedure vlan_get_tag [2023-04-03 04:41:41,918 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2023-04-03 04:41:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2023-04-03 04:41:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2023-04-03 04:41:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2023-04-03 04:41:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2023-04-03 04:41:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure usb_cdc_wdm_register [2023-04-03 04:41:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_select_altsetting [2023-04-03 04:41:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_bind_common [2023-04-03 04:41:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_unbind [2023-04-03 04:41:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_fill_tx_frame [2023-04-03 04:41:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_rx_verify_nth16 [2023-04-03 04:41:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_rx_verify_ndp16 [2023-04-03 04:41:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_manage_power [2023-04-03 04:41:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 04:41:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 04:41:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 04:41:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_wdm_manage_power [2023-04-03 04:41:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_bind [2023-04-03 04:41:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_unbind [2023-04-03 04:41:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-04-03 04:41:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_tx_fixup [2023-04-03 04:41:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_process_dgram [2023-04-03 04:41:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-03 04:41:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 04:41:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_rx_fixup [2023-04-03 04:41:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_suspend [2023-04-03 04:41:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2023-04-03 04:41:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_resume [2023-04-03 04:41:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-04-03 04:41:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_driver_init [2023-04-03 04:41:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_driver_exit [2023-04-03 04:41:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 04:41:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 04:41:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 04:41:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-04-03 04:41:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2023-04-03 04:41:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2023-04-03 04:41:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-04-03 04:41:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-04-03 04:41:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2023-04-03 04:41:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2023-04-03 04:41:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-04-03 04:41:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2023-04-03 04:41:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2023-04-03 04:41:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2023-04-03 04:41:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2023-04-03 04:41:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2023-04-03 04:41:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-03 04:41:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 04:41:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 04:41:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 04:41:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 04:41:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 04:41:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 04:41:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 04:41:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 04:41:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 04:41:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 04:41:42,391 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 04:41:42,394 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 04:41:42,482 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 04:41:43,131 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-04-03 04:41:43,792 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 04:41:44,201 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 04:41:44,201 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-03 04:41:44,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:41:44 BoogieIcfgContainer [2023-04-03 04:41:44,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 04:41:44,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 04:41:44,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 04:41:44,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 04:41:44,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 04:41:40" (1/3) ... [2023-04-03 04:41:44,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e439cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:41:44, skipping insertion in model container [2023-04-03 04:41:44,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:41:41" (2/3) ... [2023-04-03 04:41:44,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e439cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:41:44, skipping insertion in model container [2023-04-03 04:41:44,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:41:44" (3/3) ... [2023-04-03 04:41:44,212 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i [2023-04-03 04:41:44,228 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 04:41:44,228 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 04:41:44,281 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 04:41:44,286 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=FINITE_AUTOMATA, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@787e77d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 04:41:44,286 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 04:41:44,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 681 states, 416 states have (on average 1.3317307692307692) internal successors, (554), 435 states have internal predecessors, (554), 164 states have call successors, (164), 93 states have call predecessors, (164), 91 states have return successors, (155), 155 states have call predecessors, (155), 155 states have call successors, (155) [2023-04-03 04:41:44,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-04-03 04:41:44,307 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:41:44,308 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:41:44,308 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:41:44,312 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:41:44,313 INFO L85 PathProgramCache]: Analyzing trace with hash 855336484, now seen corresponding path program 1 times [2023-04-03 04:41:44,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:41:44,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829472876] [2023-04-03 04:41:44,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:41:44,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:41:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:41:44,848 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-03 04:41:44,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:41:44,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829472876] [2023-04-03 04:41:44,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829472876] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:41:44,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:41:44,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:41:44,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508370369] [2023-04-03 04:41:44,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:41:44,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:41:44,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:41:44,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:41:44,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:41:44,893 INFO L87 Difference]: Start difference. First operand has 681 states, 416 states have (on average 1.3317307692307692) internal successors, (554), 435 states have internal predecessors, (554), 164 states have call successors, (164), 93 states have call predecessors, (164), 91 states have return successors, (155), 155 states have call predecessors, (155), 155 states have call successors, (155) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-03 04:41:45,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:41:45,355 INFO L93 Difference]: Finished difference Result 1823 states and 2377 transitions. [2023-04-03 04:41:45,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:41:45,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 50 [2023-04-03 04:41:45,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:41:45,386 INFO L225 Difference]: With dead ends: 1823 [2023-04-03 04:41:45,387 INFO L226 Difference]: Without dead ends: 1176 [2023-04-03 04:41:45,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:41:45,405 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 735 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:41:45,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 1432 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 04:41:45,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2023-04-03 04:41:45,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1173. [2023-04-03 04:41:45,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 735 states have (on average 1.3210884353741497) internal successors, (971), 744 states have internal predecessors, (971), 272 states have call successors, (272), 168 states have call predecessors, (272), 165 states have return successors, (264), 264 states have call predecessors, (264), 264 states have call successors, (264) [2023-04-03 04:41:45,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1507 transitions. [2023-04-03 04:41:45,559 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1507 transitions. Word has length 50 [2023-04-03 04:41:45,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:41:45,560 INFO L495 AbstractCegarLoop]: Abstraction has 1173 states and 1507 transitions. [2023-04-03 04:41:45,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-03 04:41:45,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1507 transitions. [2023-04-03 04:41:45,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-04-03 04:41:45,571 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:41:45,572 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-04-03 04:41:45,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 04:41:45,572 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:41:45,573 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:41:45,573 INFO L85 PathProgramCache]: Analyzing trace with hash -214930784, now seen corresponding path program 1 times [2023-04-03 04:41:45,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:41:45,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192239995] [2023-04-03 04:41:45,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:41:45,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:41:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:41:46,040 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-03 04:41:46,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:41:46,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192239995] [2023-04-03 04:41:46,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192239995] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:41:46,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:41:46,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:41:46,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109183676] [2023-04-03 04:41:46,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:41:46,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:41:46,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:41:46,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:41:46,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:41:46,043 INFO L87 Difference]: Start difference. First operand 1173 states and 1507 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-03 04:41:46,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:41:46,300 INFO L93 Difference]: Finished difference Result 1175 states and 1508 transitions. [2023-04-03 04:41:46,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:41:46,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 64 [2023-04-03 04:41:46,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:41:46,308 INFO L225 Difference]: With dead ends: 1175 [2023-04-03 04:41:46,308 INFO L226 Difference]: Without dead ends: 1172 [2023-04-03 04:41:46,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:41:46,311 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 774 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 04:41:46,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 699 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 04:41:46,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2023-04-03 04:41:46,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1172. [2023-04-03 04:41:46,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 735 states have (on average 1.3197278911564625) internal successors, (970), 743 states have internal predecessors, (970), 271 states have call successors, (271), 168 states have call predecessors, (271), 165 states have return successors, (264), 264 states have call predecessors, (264), 264 states have call successors, (264) [2023-04-03 04:41:46,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1505 transitions. [2023-04-03 04:41:46,390 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1505 transitions. Word has length 64 [2023-04-03 04:41:46,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:41:46,390 INFO L495 AbstractCegarLoop]: Abstraction has 1172 states and 1505 transitions. [2023-04-03 04:41:46,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-03 04:41:46,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1505 transitions. [2023-04-03 04:41:46,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-03 04:41:46,394 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:41:46,394 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-04-03 04:41:46,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 04:41:46,394 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:41:46,394 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:41:46,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1926713564, now seen corresponding path program 1 times [2023-04-03 04:41:46,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:41:46,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779274965] [2023-04-03 04:41:46,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:41:46,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:41:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:41:46,695 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-03 04:41:46,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:41:46,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779274965] [2023-04-03 04:41:46,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779274965] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:41:46,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:41:46,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:41:46,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496348056] [2023-04-03 04:41:46,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:41:46,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:41:46,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:41:46,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:41:46,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:41:46,698 INFO L87 Difference]: Start difference. First operand 1172 states and 1505 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-03 04:41:46,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:41:46,947 INFO L93 Difference]: Finished difference Result 1174 states and 1506 transitions. [2023-04-03 04:41:46,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:41:46,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 65 [2023-04-03 04:41:46,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:41:46,954 INFO L225 Difference]: With dead ends: 1174 [2023-04-03 04:41:46,955 INFO L226 Difference]: Without dead ends: 1171 [2023-04-03 04:41:46,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:41:46,958 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 771 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 04:41:46,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 697 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 04:41:46,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2023-04-03 04:41:47,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1171. [2023-04-03 04:41:47,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 735 states have (on average 1.3183673469387756) internal successors, (969), 742 states have internal predecessors, (969), 270 states have call successors, (270), 168 states have call predecessors, (270), 165 states have return successors, (264), 264 states have call predecessors, (264), 264 states have call successors, (264) [2023-04-03 04:41:47,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1503 transitions. [2023-04-03 04:41:47,045 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1503 transitions. Word has length 65 [2023-04-03 04:41:47,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:41:47,047 INFO L495 AbstractCegarLoop]: Abstraction has 1171 states and 1503 transitions. [2023-04-03 04:41:47,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-03 04:41:47,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1503 transitions. [2023-04-03 04:41:47,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-04-03 04:41:47,050 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:41:47,050 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-04-03 04:41:47,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 04:41:47,051 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:41:47,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:41:47,059 INFO L85 PathProgramCache]: Analyzing trace with hash -401783517, now seen corresponding path program 1 times [2023-04-03 04:41:47,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:41:47,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628814833] [2023-04-03 04:41:47,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:41:47,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:41:47,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:41:47,197 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-03 04:41:47,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:41:47,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628814833] [2023-04-03 04:41:47,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628814833] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:41:47,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:41:47,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:41:47,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030154076] [2023-04-03 04:41:47,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:41:47,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:41:47,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:41:47,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:41:47,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:41:47,199 INFO L87 Difference]: Start difference. First operand 1171 states and 1503 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-03 04:41:47,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:41:47,399 INFO L93 Difference]: Finished difference Result 1173 states and 1504 transitions. [2023-04-03 04:41:47,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:41:47,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 66 [2023-04-03 04:41:47,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:41:47,405 INFO L225 Difference]: With dead ends: 1173 [2023-04-03 04:41:47,405 INFO L226 Difference]: Without dead ends: 1170 [2023-04-03 04:41:47,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:41:47,408 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 768 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 04:41:47,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 695 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 04:41:47,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2023-04-03 04:41:47,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1170. [2023-04-03 04:41:47,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1170 states, 735 states have (on average 1.3170068027210884) internal successors, (968), 741 states have internal predecessors, (968), 269 states have call successors, (269), 168 states have call predecessors, (269), 165 states have return successors, (264), 264 states have call predecessors, (264), 264 states have call successors, (264) [2023-04-03 04:41:47,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1501 transitions. [2023-04-03 04:41:47,497 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1501 transitions. Word has length 66 [2023-04-03 04:41:47,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:41:47,499 INFO L495 AbstractCegarLoop]: Abstraction has 1170 states and 1501 transitions. [2023-04-03 04:41:47,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-03 04:41:47,499 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1501 transitions. [2023-04-03 04:41:47,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-03 04:41:47,502 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:41:47,502 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-04-03 04:41:47,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 04:41:47,503 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:41:47,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:41:47,503 INFO L85 PathProgramCache]: Analyzing trace with hash 429255871, now seen corresponding path program 1 times [2023-04-03 04:41:47,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:41:47,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019029834] [2023-04-03 04:41:47,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:41:47,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:41:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:41:47,719 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-03 04:41:47,720 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:41:47,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019029834] [2023-04-03 04:41:47,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019029834] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:41:47,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:41:47,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:41:47,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947030590] [2023-04-03 04:41:47,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:41:47,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:41:47,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:41:47,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:41:47,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:41:47,721 INFO L87 Difference]: Start difference. First operand 1170 states and 1501 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-03 04:41:48,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:41:48,159 INFO L93 Difference]: Finished difference Result 2295 states and 2960 transitions. [2023-04-03 04:41:48,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:41:48,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 67 [2023-04-03 04:41:48,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:41:48,172 INFO L225 Difference]: With dead ends: 2295 [2023-04-03 04:41:48,175 INFO L226 Difference]: Without dead ends: 2292 [2023-04-03 04:41:48,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:41:48,179 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 747 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:41:48,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 1402 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 04:41:48,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2023-04-03 04:41:48,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2268. [2023-04-03 04:41:48,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2268 states, 1431 states have (on average 1.3221523410202656) internal successors, (1892), 1441 states have internal predecessors, (1892), 518 states have call successors, (518), 322 states have call predecessors, (518), 318 states have return successors, (520), 512 states have call predecessors, (520), 512 states have call successors, (520) [2023-04-03 04:41:48,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 2930 transitions. [2023-04-03 04:41:48,320 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 2930 transitions. Word has length 67 [2023-04-03 04:41:48,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:41:48,321 INFO L495 AbstractCegarLoop]: Abstraction has 2268 states and 2930 transitions. [2023-04-03 04:41:48,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-03 04:41:48,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 2930 transitions. [2023-04-03 04:41:48,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-04-03 04:41:48,323 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:41:48,323 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-04-03 04:41:48,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 04:41:48,324 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:41:48,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:41:48,324 INFO L85 PathProgramCache]: Analyzing trace with hash 421677990, now seen corresponding path program 1 times [2023-04-03 04:41:48,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:41:48,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200638370] [2023-04-03 04:41:48,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:41:48,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:41:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:41:48,424 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-03 04:41:48,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:41:48,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200638370] [2023-04-03 04:41:48,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200638370] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:41:48,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:41:48,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:41:48,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189695171] [2023-04-03 04:41:48,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:41:48,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:41:48,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:41:48,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:41:48,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:41:48,426 INFO L87 Difference]: Start difference. First operand 2268 states and 2930 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-03 04:41:48,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:41:48,707 INFO L93 Difference]: Finished difference Result 2270 states and 2931 transitions. [2023-04-03 04:41:48,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:41:48,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 68 [2023-04-03 04:41:48,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:41:48,717 INFO L225 Difference]: With dead ends: 2270 [2023-04-03 04:41:48,718 INFO L226 Difference]: Without dead ends: 2250 [2023-04-03 04:41:48,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:41:48,719 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 764 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 04:41:48,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 694 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 04:41:48,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2250 states. [2023-04-03 04:41:48,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2250 to 2250. [2023-04-03 04:41:48,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2250 states, 1421 states have (on average 1.3216045038705138) internal successors, (1878), 1430 states have internal predecessors, (1878), 513 states have call successors, (513), 318 states have call predecessors, (513), 315 states have return successors, (517), 509 states have call predecessors, (517), 509 states have call successors, (517) [2023-04-03 04:41:48,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2250 states to 2250 states and 2908 transitions. [2023-04-03 04:41:48,865 INFO L78 Accepts]: Start accepts. Automaton has 2250 states and 2908 transitions. Word has length 68 [2023-04-03 04:41:48,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:41:48,866 INFO L495 AbstractCegarLoop]: Abstraction has 2250 states and 2908 transitions. [2023-04-03 04:41:48,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-03 04:41:48,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2250 states and 2908 transitions. [2023-04-03 04:41:48,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-04-03 04:41:48,868 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:41:48,868 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:41:48,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 04:41:48,869 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:41:48,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:41:48,869 INFO L85 PathProgramCache]: Analyzing trace with hash -540153893, now seen corresponding path program 1 times [2023-04-03 04:41:48,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:41:48,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675036535] [2023-04-03 04:41:48,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:41:48,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:41:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:41:48,970 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-03 04:41:48,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:41:48,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675036535] [2023-04-03 04:41:48,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675036535] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:41:48,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:41:48,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:41:48,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265680502] [2023-04-03 04:41:48,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:41:48,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:41:48,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:41:48,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:41:48,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:41:48,972 INFO L87 Difference]: Start difference. First operand 2250 states and 2908 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-03 04:41:49,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:41:49,616 INFO L93 Difference]: Finished difference Result 6574 states and 8445 transitions. [2023-04-03 04:41:49,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:41:49,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 76 [2023-04-03 04:41:49,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:41:49,637 INFO L225 Difference]: With dead ends: 6574 [2023-04-03 04:41:49,638 INFO L226 Difference]: Without dead ends: 4340 [2023-04-03 04:41:49,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:41:49,647 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 720 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:41:49,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 1351 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 04:41:49,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4340 states. [2023-04-03 04:41:49,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4340 to 4318. [2023-04-03 04:41:49,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4318 states, 2721 states have (on average 1.3149577361264242) internal successors, (3578), 2740 states have internal predecessors, (3578), 973 states have call successors, (973), 626 states have call predecessors, (973), 623 states have return successors, (981), 967 states have call predecessors, (981), 969 states have call successors, (981) [2023-04-03 04:41:49,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4318 states to 4318 states and 5532 transitions. [2023-04-03 04:41:49,952 INFO L78 Accepts]: Start accepts. Automaton has 4318 states and 5532 transitions. Word has length 76 [2023-04-03 04:41:49,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:41:49,952 INFO L495 AbstractCegarLoop]: Abstraction has 4318 states and 5532 transitions. [2023-04-03 04:41:49,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-03 04:41:49,952 INFO L276 IsEmpty]: Start isEmpty. Operand 4318 states and 5532 transitions. [2023-04-03 04:41:49,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-04-03 04:41:49,954 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:41:49,955 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:41:49,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 04:41:49,955 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:41:49,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:41:49,955 INFO L85 PathProgramCache]: Analyzing trace with hash 834979012, now seen corresponding path program 1 times [2023-04-03 04:41:49,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:41:49,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875473634] [2023-04-03 04:41:49,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:41:49,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:41:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:41:50,055 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-03 04:41:50,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:41:50,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875473634] [2023-04-03 04:41:50,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875473634] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:41:50,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:41:50,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:41:50,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546573606] [2023-04-03 04:41:50,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:41:50,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:41:50,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:41:50,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:41:50,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:41:50,058 INFO L87 Difference]: Start difference. First operand 4318 states and 5532 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-03 04:41:50,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:41:50,834 INFO L93 Difference]: Finished difference Result 11142 states and 14258 transitions. [2023-04-03 04:41:50,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:41:50,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 77 [2023-04-03 04:41:50,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:41:50,876 INFO L225 Difference]: With dead ends: 11142 [2023-04-03 04:41:50,877 INFO L226 Difference]: Without dead ends: 6840 [2023-04-03 04:41:50,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:41:50,894 INFO L413 NwaCegarLoop]: 1060 mSDtfsCounter, 706 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:41:50,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 1708 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 04:41:50,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6840 states. [2023-04-03 04:41:51,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6840 to 6820. [2023-04-03 04:41:51,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6820 states, 4320 states have (on average 1.3164351851851852) internal successors, (5687), 4347 states have internal predecessors, (5687), 1510 states have call successors, (1510), 992 states have call predecessors, (1510), 989 states have return successors, (1522), 1504 states have call predecessors, (1522), 1506 states have call successors, (1522) [2023-04-03 04:41:51,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6820 states to 6820 states and 8719 transitions. [2023-04-03 04:41:51,382 INFO L78 Accepts]: Start accepts. Automaton has 6820 states and 8719 transitions. Word has length 77 [2023-04-03 04:41:51,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:41:51,383 INFO L495 AbstractCegarLoop]: Abstraction has 6820 states and 8719 transitions. [2023-04-03 04:41:51,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-03 04:41:51,384 INFO L276 IsEmpty]: Start isEmpty. Operand 6820 states and 8719 transitions. [2023-04-03 04:41:51,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-04-03 04:41:51,393 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:41:51,393 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-04-03 04:41:51,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-03 04:41:51,393 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:41:51,394 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:41:51,394 INFO L85 PathProgramCache]: Analyzing trace with hash -119475974, now seen corresponding path program 1 times [2023-04-03 04:41:51,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:41:51,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145131303] [2023-04-03 04:41:51,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:41:51,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:41:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:41:51,774 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-04-03 04:41:51,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:41:51,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145131303] [2023-04-03 04:41:51,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145131303] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:41:51,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:41:51,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 04:41:51,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248050788] [2023-04-03 04:41:51,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:41:51,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 04:41:51,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:41:51,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 04:41:51,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 04:41:51,776 INFO L87 Difference]: Start difference. First operand 6820 states and 8719 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-03 04:41:52,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:41:52,519 INFO L93 Difference]: Finished difference Result 10403 states and 13373 transitions. [2023-04-03 04:41:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 04:41:52,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 149 [2023-04-03 04:41:52,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:41:52,562 INFO L225 Difference]: With dead ends: 10403 [2023-04-03 04:41:52,562 INFO L226 Difference]: Without dead ends: 6928 [2023-04-03 04:41:52,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 04:41:52,579 INFO L413 NwaCegarLoop]: 707 mSDtfsCounter, 12 mSDsluCounter, 2106 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2813 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:41:52,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2813 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 04:41:52,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6928 states. [2023-04-03 04:41:53,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6928 to 6820. [2023-04-03 04:41:53,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6820 states, 4320 states have (on average 1.3136574074074074) internal successors, (5675), 4347 states have internal predecessors, (5675), 1510 states have call successors, (1510), 992 states have call predecessors, (1510), 989 states have return successors, (1522), 1504 states have call predecessors, (1522), 1506 states have call successors, (1522) [2023-04-03 04:41:53,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6820 states to 6820 states and 8707 transitions. [2023-04-03 04:41:53,045 INFO L78 Accepts]: Start accepts. Automaton has 6820 states and 8707 transitions. Word has length 149 [2023-04-03 04:41:53,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:41:53,046 INFO L495 AbstractCegarLoop]: Abstraction has 6820 states and 8707 transitions. [2023-04-03 04:41:53,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-03 04:41:53,046 INFO L276 IsEmpty]: Start isEmpty. Operand 6820 states and 8707 transitions. [2023-04-03 04:41:53,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-03 04:41:53,055 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:41:53,055 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-04-03 04:41:53,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-03 04:41:53,056 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:41:53,056 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:41:53,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1328391269, now seen corresponding path program 1 times [2023-04-03 04:41:53,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:41:53,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56815739] [2023-04-03 04:41:53,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:41:53,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:41:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:41:54,299 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-04-03 04:41:54,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:41:54,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56815739] [2023-04-03 04:41:54,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56815739] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:41:54,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:41:54,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-03 04:41:54,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594772875] [2023-04-03 04:41:54,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:41:54,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-03 04:41:54,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:41:54,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-03 04:41:54,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-04-03 04:41:54,302 INFO L87 Difference]: Start difference. First operand 6820 states and 8707 transitions. Second operand has 12 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 6 states have call successors, (29), 6 states have call predecessors, (29), 4 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-03 04:41:59,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:41:59,118 INFO L93 Difference]: Finished difference Result 6961 states and 8913 transitions. [2023-04-03 04:41:59,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-03 04:41:59,119 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 6 states have call successors, (29), 6 states have call predecessors, (29), 4 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 151 [2023-04-03 04:41:59,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:41:59,149 INFO L225 Difference]: With dead ends: 6961 [2023-04-03 04:41:59,149 INFO L226 Difference]: Without dead ends: 6958 [2023-04-03 04:41:59,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-04-03 04:41:59,153 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 1378 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 5665 mSolverCounterSat, 586 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 6251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 586 IncrementalHoareTripleChecker+Valid, 5665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-04-03 04:41:59,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 1670 Invalid, 6251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [586 Valid, 5665 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-04-03 04:41:59,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6958 states. [2023-04-03 04:41:59,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6958 to 6892. [2023-04-03 04:41:59,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6892 states, 4362 states have (on average 1.3120128381476388) internal successors, (5723), 4395 states have internal predecessors, (5723), 1528 states have call successors, (1528), 1004 states have call predecessors, (1528), 1001 states have return successors, (1556), 1516 states have call predecessors, (1556), 1524 states have call successors, (1556) [2023-04-03 04:41:59,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6892 states to 6892 states and 8807 transitions. [2023-04-03 04:41:59,620 INFO L78 Accepts]: Start accepts. Automaton has 6892 states and 8807 transitions. Word has length 151 [2023-04-03 04:41:59,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:41:59,621 INFO L495 AbstractCegarLoop]: Abstraction has 6892 states and 8807 transitions. [2023-04-03 04:41:59,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 6 states have call successors, (29), 6 states have call predecessors, (29), 4 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-03 04:41:59,621 INFO L276 IsEmpty]: Start isEmpty. Operand 6892 states and 8807 transitions. [2023-04-03 04:41:59,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-04-03 04:41:59,635 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:41:59,635 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-04-03 04:41:59,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-03 04:41:59,635 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:41:59,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:41:59,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1669302260, now seen corresponding path program 1 times [2023-04-03 04:41:59,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:41:59,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477351741] [2023-04-03 04:41:59,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:41:59,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:41:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:41:59,838 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-04-03 04:41:59,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:41:59,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477351741] [2023-04-03 04:41:59,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477351741] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:41:59,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:41:59,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:41:59,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239467361] [2023-04-03 04:41:59,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:41:59,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:41:59,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:41:59,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:41:59,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:41:59,841 INFO L87 Difference]: Start difference. First operand 6892 states and 8807 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-03 04:42:00,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:42:00,828 INFO L93 Difference]: Finished difference Result 17726 states and 22642 transitions. [2023-04-03 04:42:00,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:42:00,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 172 [2023-04-03 04:42:00,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:42:00,875 INFO L225 Difference]: With dead ends: 17726 [2023-04-03 04:42:00,876 INFO L226 Difference]: Without dead ends: 10874 [2023-04-03 04:42:00,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:42:00,895 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 734 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:42:00,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 1493 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 04:42:00,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10874 states. [2023-04-03 04:42:01,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10874 to 10852. [2023-04-03 04:42:01,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10852 states, 6896 states have (on average 1.3072795823665893) internal successors, (9015), 6947 states have internal predecessors, (9015), 2368 states have call successors, (2368), 1590 states have call predecessors, (2368), 1587 states have return successors, (2404), 2350 states have call predecessors, (2404), 2364 states have call successors, (2404) [2023-04-03 04:42:01,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10852 states to 10852 states and 13787 transitions. [2023-04-03 04:42:01,688 INFO L78 Accepts]: Start accepts. Automaton has 10852 states and 13787 transitions. Word has length 172 [2023-04-03 04:42:01,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:42:01,690 INFO L495 AbstractCegarLoop]: Abstraction has 10852 states and 13787 transitions. [2023-04-03 04:42:01,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-03 04:42:01,690 INFO L276 IsEmpty]: Start isEmpty. Operand 10852 states and 13787 transitions. [2023-04-03 04:42:01,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-04-03 04:42:01,705 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:42:01,705 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-04-03 04:42:01,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-03 04:42:01,705 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:42:01,706 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:42:01,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1961934018, now seen corresponding path program 1 times [2023-04-03 04:42:01,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:42:01,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795306895] [2023-04-03 04:42:01,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:42:01,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:42:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:42:01,841 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-04-03 04:42:01,842 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:42:01,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795306895] [2023-04-03 04:42:01,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795306895] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:42:01,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:42:01,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:42:01,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235377884] [2023-04-03 04:42:01,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:42:01,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:42:01,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:42:01,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:42:01,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:42:01,844 INFO L87 Difference]: Start difference. First operand 10852 states and 13787 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-03 04:42:03,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:42:03,040 INFO L93 Difference]: Finished difference Result 27468 states and 34908 transitions. [2023-04-03 04:42:03,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:42:03,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 173 [2023-04-03 04:42:03,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:42:03,111 INFO L225 Difference]: With dead ends: 27468 [2023-04-03 04:42:03,112 INFO L226 Difference]: Without dead ends: 16656 [2023-04-03 04:42:03,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:42:03,152 INFO L413 NwaCegarLoop]: 830 mSDtfsCounter, 731 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:42:03,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 1463 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 04:42:03,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16656 states. [2023-04-03 04:42:04,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16656 to 16636. [2023-04-03 04:42:04,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16636 states, 10628 states have (on average 1.304384644335717) internal successors, (13863), 10701 states have internal predecessors, (13863), 3566 states have call successors, (3566), 2444 states have call predecessors, (3566), 2441 states have return successors, (3610), 3542 states have call predecessors, (3610), 3562 states have call successors, (3610) [2023-04-03 04:42:04,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16636 states to 16636 states and 21039 transitions. [2023-04-03 04:42:04,518 INFO L78 Accepts]: Start accepts. Automaton has 16636 states and 21039 transitions. Word has length 173 [2023-04-03 04:42:04,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:42:04,523 INFO L495 AbstractCegarLoop]: Abstraction has 16636 states and 21039 transitions. [2023-04-03 04:42:04,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-03 04:42:04,523 INFO L276 IsEmpty]: Start isEmpty. Operand 16636 states and 21039 transitions. [2023-04-03 04:42:04,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-04-03 04:42:04,536 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:42:04,536 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-04-03 04:42:04,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-03 04:42:04,537 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:42:04,537 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:42:04,537 INFO L85 PathProgramCache]: Analyzing trace with hash 350186760, now seen corresponding path program 1 times [2023-04-03 04:42:04,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:42:04,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010942125] [2023-04-03 04:42:04,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:42:04,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:42:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:42:05,427 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-04-03 04:42:05,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:42:05,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010942125] [2023-04-03 04:42:05,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010942125] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:42:05,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:42:05,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-03 04:42:05,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309397192] [2023-04-03 04:42:05,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:42:05,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-03 04:42:05,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:42:05,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-03 04:42:05,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-04-03 04:42:05,430 INFO L87 Difference]: Start difference. First operand 16636 states and 21039 transitions. Second operand has 9 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (31), 4 states have call predecessors, (31), 5 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-03 04:42:08,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:42:08,741 INFO L93 Difference]: Finished difference Result 24855 states and 31522 transitions. [2023-04-03 04:42:08,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-03 04:42:08,741 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (31), 4 states have call predecessors, (31), 5 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) Word has length 173 [2023-04-03 04:42:08,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:42:08,841 INFO L225 Difference]: With dead ends: 24855 [2023-04-03 04:42:08,842 INFO L226 Difference]: Without dead ends: 24836 [2023-04-03 04:42:08,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-04-03 04:42:08,856 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 1368 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 586 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 586 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-04-03 04:42:08,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 1201 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [586 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-04-03 04:42:08,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24836 states. [2023-04-03 04:42:10,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24836 to 24660. [2023-04-03 04:42:10,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24660 states, 15767 states have (on average 1.3055749349908037) internal successors, (20585), 15884 states have internal predecessors, (20585), 5276 states have call successors, (5276), 3603 states have call predecessors, (5276), 3616 states have return successors, (5416), 5250 states have call predecessors, (5416), 5272 states have call successors, (5416) [2023-04-03 04:42:10,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24660 states to 24660 states and 31277 transitions. [2023-04-03 04:42:10,475 INFO L78 Accepts]: Start accepts. Automaton has 24660 states and 31277 transitions. Word has length 173 [2023-04-03 04:42:10,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:42:10,475 INFO L495 AbstractCegarLoop]: Abstraction has 24660 states and 31277 transitions. [2023-04-03 04:42:10,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (31), 4 states have call predecessors, (31), 5 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-03 04:42:10,475 INFO L276 IsEmpty]: Start isEmpty. Operand 24660 states and 31277 transitions. [2023-04-03 04:42:10,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-04-03 04:42:10,493 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:42:10,493 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-04-03 04:42:10,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-03 04:42:10,493 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:42:10,494 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:42:10,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1946318346, now seen corresponding path program 1 times [2023-04-03 04:42:10,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:42:10,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860377920] [2023-04-03 04:42:10,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:42:10,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:42:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:42:11,092 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-04-03 04:42:11,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:42:11,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860377920] [2023-04-03 04:42:11,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860377920] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 04:42:11,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226086202] [2023-04-03 04:42:11,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:42:11,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:42:11,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:42:11,096 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) [2023-04-03 04:42:11,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 04:42:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:42:11,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 1996 conjuncts, 18 conjunts are in the unsatisfiable core [2023-04-03 04:42:11,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 04:42:12,087 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-04-03 04:42:12,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 04:42:12,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226086202] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:42:12,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 04:42:12,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4] total 11 [2023-04-03 04:42:12,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540097381] [2023-04-03 04:42:12,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:42:12,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-03 04:42:12,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:42:12,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-03 04:42:12,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-03 04:42:12,090 INFO L87 Difference]: Start difference. First operand 24660 states and 31277 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 6 states have call successors, (33), 5 states have call predecessors, (33), 6 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) [2023-04-03 04:42:17,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:42:17,005 INFO L93 Difference]: Finished difference Result 35552 states and 46108 transitions. [2023-04-03 04:42:17,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-03 04:42:17,013 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 6 states have call successors, (33), 5 states have call predecessors, (33), 6 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) Word has length 181 [2023-04-03 04:42:17,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:42:17,147 INFO L225 Difference]: With dead ends: 35552 [2023-04-03 04:42:17,147 INFO L226 Difference]: Without dead ends: 35533 [2023-04-03 04:42:17,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-04-03 04:42:17,173 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 2015 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 3732 mSolverCounterSat, 909 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2141 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 4641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 909 IncrementalHoareTripleChecker+Valid, 3732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-04-03 04:42:17,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2141 Valid, 1136 Invalid, 4641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [909 Valid, 3732 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-04-03 04:42:17,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35533 states. [2023-04-03 04:42:19,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35533 to 32652. [2023-04-03 04:42:19,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32652 states, 20890 states have (on average 1.3064145524174247) internal successors, (27291), 21035 states have internal predecessors, (27291), 6986 states have call successors, (6986), 4762 states have call predecessors, (6986), 4775 states have return successors, (7174), 6958 states have call predecessors, (7174), 6982 states have call successors, (7174) [2023-04-03 04:42:19,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32652 states to 32652 states and 41451 transitions. [2023-04-03 04:42:19,510 INFO L78 Accepts]: Start accepts. Automaton has 32652 states and 41451 transitions. Word has length 181 [2023-04-03 04:42:19,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:42:19,511 INFO L495 AbstractCegarLoop]: Abstraction has 32652 states and 41451 transitions. [2023-04-03 04:42:19,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 6 states have call successors, (33), 5 states have call predecessors, (33), 6 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) [2023-04-03 04:42:19,511 INFO L276 IsEmpty]: Start isEmpty. Operand 32652 states and 41451 transitions. [2023-04-03 04:42:19,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-04-03 04:42:19,531 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:42:19,532 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:42:19,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-03 04:42:19,743 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 [2023-04-03 04:42:19,743 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:42:19,743 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:42:19,744 INFO L85 PathProgramCache]: Analyzing trace with hash 198840416, now seen corresponding path program 1 times [2023-04-03 04:42:19,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:42:19,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761346400] [2023-04-03 04:42:19,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:42:19,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:42:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:42:21,850 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2023-04-03 04:42:21,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:42:21,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761346400] [2023-04-03 04:42:21,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761346400] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 04:42:21,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314047499] [2023-04-03 04:42:21,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:42:21,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:42:21,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:42:21,852 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) [2023-04-03 04:42:21,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 04:42:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:42:22,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 2160 conjuncts, 37 conjunts are in the unsatisfiable core [2023-04-03 04:42:22,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 04:42:22,951 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2023-04-03 04:42:22,951 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 04:42:24,412 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2023-04-03 04:42:24,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314047499] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 04:42:24,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [103358644] [2023-04-03 04:42:24,432 INFO L159 IcfgInterpreter]: Started Sifa with 127 locations of interest [2023-04-03 04:42:24,432 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 04:42:24,435 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 04:42:24,439 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 04:42:24,440 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 04:42:28,302 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 199 for LOIs [2023-04-03 04:42:29,638 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 212 for LOIs [2023-04-03 04:42:31,453 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_initialize with input of size 141 for LOIs [2023-04-03 04:42:31,476 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 161 for LOIs [2023-04-03 04:42:31,514 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 184 for LOIs [2023-04-03 04:42:31,678 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 04:42:40,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [103358644] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:42:40,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-04-03 04:42:40,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17, 11, 16] total 47 [2023-04-03 04:42:40,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250657105] [2023-04-03 04:42:40,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:42:40,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-03 04:42:40,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:42:40,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-03 04:42:40,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=373, Invalid=1789, Unknown=0, NotChecked=0, Total=2162 [2023-04-03 04:42:40,750 INFO L87 Difference]: Start difference. First operand 32652 states and 41451 transitions. Second operand has 14 states, 10 states have (on average 8.3) internal successors, (83), 8 states have internal predecessors, (83), 5 states have call successors, (30), 6 states have call predecessors, (30), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-04-03 04:42:51,744 WARN L223 SmtUtils]: Spent 10.79s on a formula simplification. DAG size of input: 962 DAG size of output: 933 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-03 04:43:15,800 WARN L223 SmtUtils]: Spent 23.77s on a formula simplification. DAG size of input: 986 DAG size of output: 957 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-03 04:43:29,869 WARN L223 SmtUtils]: Spent 13.77s on a formula simplification. DAG size of input: 994 DAG size of output: 965 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-03 04:43:46,021 WARN L223 SmtUtils]: Spent 15.85s on a formula simplification. DAG size of input: 1002 DAG size of output: 973 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-03 04:44:04,810 WARN L223 SmtUtils]: Spent 18.46s on a formula simplification. DAG size of input: 1008 DAG size of output: 979 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-03 04:44:28,646 WARN L223 SmtUtils]: Spent 18.19s on a formula simplification. DAG size of input: 994 DAG size of output: 962 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-03 04:44:48,788 WARN L223 SmtUtils]: Spent 19.25s on a formula simplification. DAG size of input: 1012 DAG size of output: 980 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-03 04:45:01,656 WARN L223 SmtUtils]: Spent 10.94s on a formula simplification. DAG size of input: 971 DAG size of output: 942 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-03 04:45:12,623 WARN L223 SmtUtils]: Spent 10.79s on a formula simplification. DAG size of input: 973 DAG size of output: 944 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)