./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7918e78c7fa8e57a6cd382ed800c3c73f2f498c616ea3e9ed6a8775509cf80ff --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 17:32:00,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 17:32:00,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 17:32:00,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 17:32:00,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 17:32:00,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 17:32:00,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 17:32:00,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 17:32:00,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 17:32:00,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 17:32:00,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 17:32:00,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 17:32:00,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 17:32:00,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 17:32:00,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 17:32:00,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 17:32:00,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 17:32:00,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 17:32:00,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 17:32:00,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 17:32:00,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 17:32:00,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 17:32:00,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 17:32:00,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 17:32:00,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 17:32:00,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 17:32:00,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 17:32:00,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 17:32:00,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 17:32:00,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 17:32:00,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 17:32:00,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 17:32:01,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 17:32:01,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 17:32:01,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 17:32:01,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 17:32:01,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 17:32:01,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 17:32:01,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 17:32:01,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 17:32:01,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 17:32:01,005 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 17:32:01,024 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 17:32:01,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 17:32:01,024 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 17:32:01,025 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 17:32:01,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 17:32:01,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 17:32:01,026 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 17:32:01,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 17:32:01,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 17:32:01,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 17:32:01,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 17:32:01,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 17:32:01,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 17:32:01,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 17:32:01,029 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 17:32:01,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 17:32:01,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 17:32:01,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 17:32:01,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 17:32:01,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:32:01,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 17:32:01,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 17:32:01,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 17:32:01,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 17:32:01,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 17:32:01,032 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 17:32:01,032 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 17:32:01,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 17:32:01,039 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 17:32:01,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7918e78c7fa8e57a6cd382ed800c3c73f2f498c616ea3e9ed6a8775509cf80ff [2021-11-06 17:32:01,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 17:32:01,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 17:32:01,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 17:32:01,298 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 17:32:01,299 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 17:32:01,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2021-11-06 17:32:01,374 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/737c0dd35/4153b112e6da4584b2930515ce254b0d/FLAG5d11a0aa1 [2021-11-06 17:32:02,078 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 17:32:02,079 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2021-11-06 17:32:02,132 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/737c0dd35/4153b112e6da4584b2930515ce254b0d/FLAG5d11a0aa1 [2021-11-06 17:32:02,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/737c0dd35/4153b112e6da4584b2930515ce254b0d [2021-11-06 17:32:02,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 17:32:02,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 17:32:02,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 17:32:02,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 17:32:02,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 17:32:02,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:32:02" (1/1) ... [2021-11-06 17:32:02,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f18d062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:32:02, skipping insertion in model container [2021-11-06 17:32:02,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:32:02" (1/1) ... [2021-11-06 17:32:02,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 17:32:02,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 17:32:04,048 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[325202,325215] [2021-11-06 17:32:04,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:32:04,157 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 17:32:04,487 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[325202,325215] [2021-11-06 17:32:04,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:32:04,601 INFO L208 MainTranslator]: Completed translation [2021-11-06 17:32:04,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:32:04 WrapperNode [2021-11-06 17:32:04,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 17:32:04,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 17:32:04,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 17:32:04,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 17:32:04,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:32:04" (1/1) ... [2021-11-06 17:32:04,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:32:04" (1/1) ... [2021-11-06 17:32:05,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 17:32:05,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 17:32:05,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 17:32:05,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 17:32:05,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:32:04" (1/1) ... [2021-11-06 17:32:05,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:32:04" (1/1) ... [2021-11-06 17:32:05,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:32:04" (1/1) ... [2021-11-06 17:32:05,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:32:04" (1/1) ... [2021-11-06 17:32:06,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:32:04" (1/1) ... [2021-11-06 17:32:06,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:32:04" (1/1) ... [2021-11-06 17:32:06,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:32:04" (1/1) ... [2021-11-06 17:32:07,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 17:32:07,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 17:32:07,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 17:32:07,123 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 17:32:07,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:32:04" (1/1) ... [2021-11-06 17:32:07,132 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:32:07,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:32:07,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 17:32:07,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 17:32:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-06 17:32:07,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-06 17:32:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-06 17:32:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 17:32:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 17:32:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2021-11-06 17:32:07,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2021-11-06 17:32:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2021-11-06 17:32:07,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2021-11-06 17:32:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2021-11-06 17:32:07,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2021-11-06 17:32:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2021-11-06 17:32:07,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2021-11-06 17:32:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 17:32:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 17:32:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2021-11-06 17:32:07,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2021-11-06 17:32:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 17:32:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 17:32:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2021-11-06 17:32:07,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2021-11-06 17:32:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 17:32:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2021-11-06 17:32:07,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2021-11-06 17:32:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 17:32:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 17:32:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2021-11-06 17:32:07,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2021-11-06 17:32:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2021-11-06 17:32:07,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2021-11-06 17:32:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 17:32:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2021-11-06 17:32:07,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2021-11-06 17:32:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 17:32:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 17:32:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 17:32:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 17:32:07,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 17:32:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2021-11-06 17:32:07,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2021-11-06 17:32:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 17:32:07,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 17:32:07,185 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2021-11-06 17:32:07,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2021-11-06 17:32:07,185 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2021-11-06 17:32:07,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2021-11-06 17:32:07,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 17:32:07,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 17:32:07,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 17:32:24,521 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 17:32:24,522 INFO L299 CfgBuilder]: Removed 6842 assume(true) statements. [2021-11-06 17:32:24,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:32:24 BoogieIcfgContainer [2021-11-06 17:32:24,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 17:32:24,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 17:32:24,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 17:32:24,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 17:32:24,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 05:32:02" (1/3) ... [2021-11-06 17:32:24,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dbaa366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:32:24, skipping insertion in model container [2021-11-06 17:32:24,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:32:04" (2/3) ... [2021-11-06 17:32:24,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dbaa366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:32:24, skipping insertion in model container [2021-11-06 17:32:24,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:32:24" (3/3) ... [2021-11-06 17:32:24,540 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2021-11-06 17:32:24,545 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 17:32:24,545 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 43 error locations. [2021-11-06 17:32:24,602 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 17:32:24,607 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 17:32:24,607 INFO L340 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2021-11-06 17:32:24,690 INFO L276 IsEmpty]: Start isEmpty. Operand has 6564 states, 6431 states have (on average 1.4291712019903593) internal successors, (9191), 6499 states have internal predecessors, (9191), 73 states have call successors, (73), 16 states have call predecessors, (73), 16 states have return successors, (73), 69 states have call predecessors, (73), 73 states have call successors, (73) [2021-11-06 17:32:24,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-06 17:32:24,698 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:32:24,698 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:32:24,699 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION (and 40 more)] === [2021-11-06 17:32:24,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:32:24,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1860654671, now seen corresponding path program 1 times [2021-11-06 17:32:24,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:32:24,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026101357] [2021-11-06 17:32:24,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:32:24,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:32:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:32:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:32:25,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:32:25,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026101357] [2021-11-06 17:32:25,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026101357] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:32:25,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:32:25,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:32:25,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522243153] [2021-11-06 17:32:25,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 17:32:25,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:32:25,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 17:32:25,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:32:25,245 INFO L87 Difference]: Start difference. First operand has 6564 states, 6431 states have (on average 1.4291712019903593) internal successors, (9191), 6499 states have internal predecessors, (9191), 73 states have call successors, (73), 16 states have call predecessors, (73), 16 states have return successors, (73), 69 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:32:25,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:32:25,464 INFO L93 Difference]: Finished difference Result 13124 states and 18742 transitions. [2021-11-06 17:32:25,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 17:32:25,466 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-06 17:32:25,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:32:25,516 INFO L225 Difference]: With dead ends: 13124 [2021-11-06 17:32:25,516 INFO L226 Difference]: Without dead ends: 6519 [2021-11-06 17:32:25,553 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:32:25,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6519 states. [2021-11-06 17:32:25,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6519 to 6519. [2021-11-06 17:32:25,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6519 states, 6387 states have (on average 1.3695005479881008) internal successors, (8747), 6454 states have internal predecessors, (8747), 73 states have call successors, (73), 16 states have call predecessors, (73), 16 states have return successors, (73), 69 states have call predecessors, (73), 73 states have call successors, (73) [2021-11-06 17:32:25,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6519 states to 6519 states and 8893 transitions. [2021-11-06 17:32:25,821 INFO L78 Accepts]: Start accepts. Automaton has 6519 states and 8893 transitions. Word has length 66 [2021-11-06 17:32:25,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:32:25,822 INFO L470 AbstractCegarLoop]: Abstraction has 6519 states and 8893 transitions. [2021-11-06 17:32:25,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:32:25,823 INFO L276 IsEmpty]: Start isEmpty. Operand 6519 states and 8893 transitions. [2021-11-06 17:32:25,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-06 17:32:25,831 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:32:25,831 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:32:25,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 17:32:25,832 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION (and 40 more)] === [2021-11-06 17:32:25,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:32:25,834 INFO L85 PathProgramCache]: Analyzing trace with hash -2004039231, now seen corresponding path program 1 times [2021-11-06 17:32:25,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:32:25,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224570100] [2021-11-06 17:32:25,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:32:25,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:32:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:32:26,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:32:26,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:32:26,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224570100] [2021-11-06 17:32:26,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224570100] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:32:26,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:32:26,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:32:26,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126199300] [2021-11-06 17:32:26,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:32:26,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:32:26,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:32:26,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:32:26,148 INFO L87 Difference]: Start difference. First operand 6519 states and 8893 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:32:26,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:32:26,624 INFO L93 Difference]: Finished difference Result 18250 states and 24802 transitions. [2021-11-06 17:32:26,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:32:26,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-06 17:32:26,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:32:26,689 INFO L225 Difference]: With dead ends: 18250 [2021-11-06 17:32:26,689 INFO L226 Difference]: Without dead ends: 11787 [2021-11-06 17:32:26,715 INFO L786 BasicCegarLoop]: 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 [2021-11-06 17:32:26,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11787 states. [2021-11-06 17:32:27,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11787 to 11703. [2021-11-06 17:32:27,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11703 states, 11497 states have (on average 1.3622684178481343) internal successors, (15662), 11584 states have internal predecessors, (15662), 133 states have call successors, (133), 30 states have call predecessors, (133), 30 states have return successors, (133), 127 states have call predecessors, (133), 133 states have call successors, (133) [2021-11-06 17:32:27,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11703 states to 11703 states and 15928 transitions. [2021-11-06 17:32:27,084 INFO L78 Accepts]: Start accepts. Automaton has 11703 states and 15928 transitions. Word has length 66 [2021-11-06 17:32:27,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:32:27,084 INFO L470 AbstractCegarLoop]: Abstraction has 11703 states and 15928 transitions. [2021-11-06 17:32:27,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:32:27,085 INFO L276 IsEmpty]: Start isEmpty. Operand 11703 states and 15928 transitions. [2021-11-06 17:32:27,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-06 17:32:27,087 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:32:27,087 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:32:27,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 17:32:27,088 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION (and 40 more)] === [2021-11-06 17:32:27,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:32:27,089 INFO L85 PathProgramCache]: Analyzing trace with hash -589739877, now seen corresponding path program 1 times [2021-11-06 17:32:27,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:32:27,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773286526] [2021-11-06 17:32:27,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:32:27,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:32:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:32:27,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:32:27,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:32:27,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773286526] [2021-11-06 17:32:27,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773286526] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:32:27,468 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:32:27,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:32:27,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75553505] [2021-11-06 17:32:27,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:32:27,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:32:27,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:32:27,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:32:27,470 INFO L87 Difference]: Start difference. First operand 11703 states and 15928 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:32:28,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:32:28,074 INFO L93 Difference]: Finished difference Result 32975 states and 45120 transitions. [2021-11-06 17:32:28,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:32:28,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-06 17:32:28,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:32:28,184 INFO L225 Difference]: With dead ends: 32975 [2021-11-06 17:32:28,184 INFO L226 Difference]: Without dead ends: 21328 [2021-11-06 17:32:28,235 INFO L786 BasicCegarLoop]: 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 [2021-11-06 17:32:28,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21328 states. [2021-11-06 17:32:28,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21328 to 16813. [2021-11-06 17:32:28,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16813 states, 16522 states have (on average 1.3730783198160028) internal successors, (22686), 16632 states have internal predecessors, (22686), 202 states have call successors, (202), 46 states have call predecessors, (202), 46 states have return successors, (278), 191 states have call predecessors, (278), 202 states have call successors, (278) [2021-11-06 17:32:28,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16813 states to 16813 states and 23166 transitions. [2021-11-06 17:32:28,817 INFO L78 Accepts]: Start accepts. Automaton has 16813 states and 23166 transitions. Word has length 79 [2021-11-06 17:32:28,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:32:28,818 INFO L470 AbstractCegarLoop]: Abstraction has 16813 states and 23166 transitions. [2021-11-06 17:32:28,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:32:28,818 INFO L276 IsEmpty]: Start isEmpty. Operand 16813 states and 23166 transitions. [2021-11-06 17:32:28,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-06 17:32:28,819 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:32:28,820 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 17:32:28,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 17:32:28,820 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION (and 40 more)] === [2021-11-06 17:32:28,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:32:28,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1126365532, now seen corresponding path program 1 times [2021-11-06 17:32:28,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:32:28,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158706326] [2021-11-06 17:32:28,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:32:28,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:32:28,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:32:29,004 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:32:29,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:32:29,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158706326] [2021-11-06 17:32:29,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158706326] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:32:29,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:32:29,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:32:29,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229661177] [2021-11-06 17:32:29,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:32:29,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:32:29,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:32:29,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:32:29,011 INFO L87 Difference]: Start difference. First operand 16813 states and 23166 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:32:29,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:32:29,546 INFO L93 Difference]: Finished difference Result 33570 states and 46269 transitions. [2021-11-06 17:32:29,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:32:29,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-11-06 17:32:29,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:32:29,615 INFO L225 Difference]: With dead ends: 33570 [2021-11-06 17:32:29,615 INFO L226 Difference]: Without dead ends: 16813 [2021-11-06 17:32:29,673 INFO L786 BasicCegarLoop]: 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 [2021-11-06 17:32:29,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16813 states. [2021-11-06 17:32:30,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16813 to 16813. [2021-11-06 17:32:30,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16813 states, 16522 states have (on average 1.3728362183754994) internal successors, (22682), 16632 states have internal predecessors, (22682), 202 states have call successors, (202), 46 states have call predecessors, (202), 46 states have return successors, (278), 191 states have call predecessors, (278), 202 states have call successors, (278) [2021-11-06 17:32:30,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16813 states to 16813 states and 23162 transitions. [2021-11-06 17:32:30,418 INFO L78 Accepts]: Start accepts. Automaton has 16813 states and 23162 transitions. Word has length 93 [2021-11-06 17:32:30,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:32:30,419 INFO L470 AbstractCegarLoop]: Abstraction has 16813 states and 23162 transitions. [2021-11-06 17:32:30,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:32:30,419 INFO L276 IsEmpty]: Start isEmpty. Operand 16813 states and 23162 transitions. [2021-11-06 17:32:30,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-06 17:32:30,422 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:32:30,423 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 17:32:30,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 17:32:30,423 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION (and 40 more)] === [2021-11-06 17:32:30,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:32:30,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1000386237, now seen corresponding path program 1 times [2021-11-06 17:32:30,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:32:30,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462129484] [2021-11-06 17:32:30,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:32:30,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:32:30,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:32:30,690 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 17:32:30,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:32:30,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462129484] [2021-11-06 17:32:30,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462129484] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:32:30,691 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:32:30,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:32:30,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665133327] [2021-11-06 17:32:30,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:32:30,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:32:30,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:32:30,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:32:30,697 INFO L87 Difference]: Start difference. First operand 16813 states and 23162 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:32:31,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:32:31,502 INFO L93 Difference]: Finished difference Result 24307 states and 33607 transitions. [2021-11-06 17:32:31,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:32:31,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-11-06 17:32:31,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:32:31,581 INFO L225 Difference]: With dead ends: 24307 [2021-11-06 17:32:31,581 INFO L226 Difference]: Without dead ends: 24247 [2021-11-06 17:32:31,594 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:32:31,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24247 states. [2021-11-06 17:32:32,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24247 to 23239. [2021-11-06 17:32:32,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23239 states, 22807 states have (on average 1.3687464374972595) internal successors, (31217), 22941 states have internal predecessors, (31217), 316 states have call successors, (316), 76 states have call predecessors, (316), 76 states have return successors, (572), 302 states have call predecessors, (572), 316 states have call successors, (572) [2021-11-06 17:32:32,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23239 states to 23239 states and 32105 transitions. [2021-11-06 17:32:32,179 INFO L78 Accepts]: Start accepts. Automaton has 23239 states and 32105 transitions. Word has length 97 [2021-11-06 17:32:32,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:32:32,181 INFO L470 AbstractCegarLoop]: Abstraction has 23239 states and 32105 transitions. [2021-11-06 17:32:32,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:32:32,181 INFO L276 IsEmpty]: Start isEmpty. Operand 23239 states and 32105 transitions. [2021-11-06 17:32:32,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-06 17:32:32,189 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:32:32,190 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 17:32:32,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 17:32:32,190 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION (and 40 more)] === [2021-11-06 17:32:32,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:32:32,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1040276995, now seen corresponding path program 1 times [2021-11-06 17:32:32,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:32:32,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141103628] [2021-11-06 17:32:32,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:32:32,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:32:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:32:32,642 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 17:32:32,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:32:32,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141103628] [2021-11-06 17:32:32,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141103628] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:32:32,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:32:32,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 17:32:32,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884249503] [2021-11-06 17:32:32,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 17:32:32,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:32:32,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 17:32:32,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 17:32:32,645 INFO L87 Difference]: Start difference. First operand 23239 states and 32105 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:32:37,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:32:37,910 INFO L93 Difference]: Finished difference Result 124521 states and 173003 transitions. [2021-11-06 17:32:37,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 17:32:37,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2021-11-06 17:32:37,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:32:38,316 INFO L225 Difference]: With dead ends: 124521 [2021-11-06 17:32:38,317 INFO L226 Difference]: Without dead ends: 101338 [2021-11-06 17:32:38,397 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-06 17:32:38,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101338 states. [2021-11-06 17:32:39,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101338 to 23251. [2021-11-06 17:32:39,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23251 states, 22819 states have (on average 1.3685525220211228) internal successors, (31229), 22953 states have internal predecessors, (31229), 316 states have call successors, (316), 76 states have call predecessors, (316), 76 states have return successors, (572), 302 states have call predecessors, (572), 316 states have call successors, (572) [2021-11-06 17:32:40,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23251 states to 23251 states and 32117 transitions. [2021-11-06 17:32:40,047 INFO L78 Accepts]: Start accepts. Automaton has 23251 states and 32117 transitions. Word has length 130 [2021-11-06 17:32:40,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:32:40,048 INFO L470 AbstractCegarLoop]: Abstraction has 23251 states and 32117 transitions. [2021-11-06 17:32:40,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:32:40,049 INFO L276 IsEmpty]: Start isEmpty. Operand 23251 states and 32117 transitions. [2021-11-06 17:32:40,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-06 17:32:40,055 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:32:40,056 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 17:32:40,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 17:32:40,056 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION (and 40 more)] === [2021-11-06 17:32:40,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:32:40,057 INFO L85 PathProgramCache]: Analyzing trace with hash 690296299, now seen corresponding path program 1 times [2021-11-06 17:32:40,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:32:40,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972636470] [2021-11-06 17:32:40,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:32:40,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:32:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:32:40,438 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 17:32:40,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:32:40,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972636470] [2021-11-06 17:32:40,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972636470] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:32:40,439 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:32:40,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:32:40,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445620231] [2021-11-06 17:32:40,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:32:40,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:32:40,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:32:40,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:32:40,440 INFO L87 Difference]: Start difference. First operand 23251 states and 32117 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:32:41,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:32:41,459 INFO L93 Difference]: Finished difference Result 46469 states and 64203 transitions. [2021-11-06 17:32:41,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:32:41,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2021-11-06 17:32:41,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:32:41,538 INFO L225 Difference]: With dead ends: 46469 [2021-11-06 17:32:41,538 INFO L226 Difference]: Without dead ends: 23254 [2021-11-06 17:32:41,605 INFO L786 BasicCegarLoop]: 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 [2021-11-06 17:32:41,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23254 states. [2021-11-06 17:32:42,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23254 to 23254. [2021-11-06 17:32:42,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23254 states, 22822 states have (on average 1.368504075015336) internal successors, (31232), 22956 states have internal predecessors, (31232), 316 states have call successors, (316), 76 states have call predecessors, (316), 76 states have return successors, (572), 302 states have call predecessors, (572), 316 states have call successors, (572) [2021-11-06 17:32:42,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23254 states to 23254 states and 32120 transitions. [2021-11-06 17:32:42,841 INFO L78 Accepts]: Start accepts. Automaton has 23254 states and 32120 transitions. Word has length 136 [2021-11-06 17:32:42,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:32:42,841 INFO L470 AbstractCegarLoop]: Abstraction has 23254 states and 32120 transitions. [2021-11-06 17:32:42,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:32:42,842 INFO L276 IsEmpty]: Start isEmpty. Operand 23254 states and 32120 transitions. [2021-11-06 17:32:42,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-06 17:32:42,848 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:32:42,848 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 17:32:42,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 17:32:42,849 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION (and 40 more)] === [2021-11-06 17:32:42,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:32:42,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2018861784, now seen corresponding path program 1 times [2021-11-06 17:32:42,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:32:42,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937680310] [2021-11-06 17:32:42,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:32:42,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:32:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:32:43,294 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-06 17:32:43,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:32:43,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937680310] [2021-11-06 17:32:43,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937680310] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 17:32:43,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691681719] [2021-11-06 17:32:43,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:32:43,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:32:43,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:32:43,300 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 17:32:43,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-06 17:32:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:32:44,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 3379 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-06 17:32:44,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 17:32:45,064 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 17:32:45,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691681719] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:32:45,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 17:32:45,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-06 17:32:45,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891971105] [2021-11-06 17:32:45,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 17:32:45,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:32:45,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 17:32:45,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-06 17:32:45,066 INFO L87 Difference]: Start difference. First operand 23254 states and 32120 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:32:48,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:32:48,226 INFO L93 Difference]: Finished difference Result 46459 states and 64184 transitions. [2021-11-06 17:32:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 17:32:48,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2021-11-06 17:32:48,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:32:48,302 INFO L225 Difference]: With dead ends: 46459 [2021-11-06 17:32:48,303 INFO L226 Difference]: Without dead ends: 23250 [2021-11-06 17:32:48,355 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-06 17:32:48,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23250 states. [2021-11-06 17:32:49,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23250 to 23246. [2021-11-06 17:32:49,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23246 states, 22814 states have (on average 1.3683702989392479) internal successors, (31218), 22948 states have internal predecessors, (31218), 316 states have call successors, (316), 76 states have call predecessors, (316), 76 states have return successors, (572), 302 states have call predecessors, (572), 316 states have call successors, (572) [2021-11-06 17:32:49,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23246 states to 23246 states and 32106 transitions. [2021-11-06 17:32:49,236 INFO L78 Accepts]: Start accepts. Automaton has 23246 states and 32106 transitions. Word has length 139 [2021-11-06 17:32:49,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:32:49,237 INFO L470 AbstractCegarLoop]: Abstraction has 23246 states and 32106 transitions. [2021-11-06 17:32:49,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:32:49,237 INFO L276 IsEmpty]: Start isEmpty. Operand 23246 states and 32106 transitions. [2021-11-06 17:32:49,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-06 17:32:49,248 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:32:49,248 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 17:32:49,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-06 17:32:49,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:32:49,472 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION (and 40 more)] === [2021-11-06 17:32:49,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:32:49,472 INFO L85 PathProgramCache]: Analyzing trace with hash 836155624, now seen corresponding path program 1 times [2021-11-06 17:32:49,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:32:49,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122008219] [2021-11-06 17:32:49,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:32:49,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:32:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:32:49,827 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-06 17:32:49,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:32:49,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122008219] [2021-11-06 17:32:49,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122008219] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 17:32:49,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867068713] [2021-11-06 17:32:49,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:32:49,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:32:49,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:32:49,830 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 17:32:49,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-06 17:32:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:32:51,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 3445 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-06 17:32:51,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 17:32:51,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-06 17:32:51,938 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-06 17:32:51,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867068713] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:32:51,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 17:32:51,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2021-11-06 17:32:51,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870982676] [2021-11-06 17:32:51,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 17:32:51,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:32:51,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 17:32:51,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-06 17:32:51,940 INFO L87 Difference]: Start difference. First operand 23246 states and 32106 transitions. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:32:56,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:32:56,257 INFO L93 Difference]: Finished difference Result 99809 states and 136888 transitions. [2021-11-06 17:32:56,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-06 17:32:56,258 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-11-06 17:32:56,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:32:56,498 INFO L225 Difference]: With dead ends: 99809 [2021-11-06 17:32:56,498 INFO L226 Difference]: Without dead ends: 76622 [2021-11-06 17:32:56,589 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-11-06 17:32:56,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76622 states. [2021-11-06 17:32:57,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76622 to 23258. [2021-11-06 17:32:57,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23258 states, 22826 states have (on average 1.3681766406729168) internal successors, (31230), 22960 states have internal predecessors, (31230), 316 states have call successors, (316), 76 states have call predecessors, (316), 76 states have return successors, (572), 302 states have call predecessors, (572), 316 states have call successors, (572) [2021-11-06 17:32:57,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23258 states to 23258 states and 32118 transitions. [2021-11-06 17:32:57,983 INFO L78 Accepts]: Start accepts. Automaton has 23258 states and 32118 transitions. Word has length 143 [2021-11-06 17:32:57,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:32:57,983 INFO L470 AbstractCegarLoop]: Abstraction has 23258 states and 32118 transitions. [2021-11-06 17:32:57,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:32:57,983 INFO L276 IsEmpty]: Start isEmpty. Operand 23258 states and 32118 transitions. [2021-11-06 17:32:57,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-06 17:32:57,988 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:32:57,988 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 17:32:58,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-06 17:32:58,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-06 17:32:58,203 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION (and 40 more)] === [2021-11-06 17:32:58,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:32:58,204 INFO L85 PathProgramCache]: Analyzing trace with hash -110005053, now seen corresponding path program 1 times [2021-11-06 17:32:58,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:32:58,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412699466] [2021-11-06 17:32:58,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:32:58,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:32:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:32:58,574 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-06 17:32:58,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:32:58,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412699466] [2021-11-06 17:32:58,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412699466] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 17:32:58,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512996029] [2021-11-06 17:32:58,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:32:58,575 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:32:58,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:32:58,577 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 17:32:58,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-06 17:33:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:33:16,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 3466 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-06 17:33:16,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 17:33:17,170 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-06 17:33:17,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512996029] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 17:33:17,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-06 17:33:17,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-06 17:33:17,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998998132] [2021-11-06 17:33:17,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 17:33:17,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:33:17,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 17:33:17,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-06 17:33:17,173 INFO L87 Difference]: Start difference. First operand 23258 states and 32118 transitions. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:33:19,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:33:19,184 INFO L93 Difference]: Finished difference Result 64390 states and 88606 transitions. [2021-11-06 17:33:19,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 17:33:19,184 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2021-11-06 17:33:19,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:33:19,411 INFO L225 Difference]: With dead ends: 64390 [2021-11-06 17:33:19,412 INFO L226 Difference]: Without dead ends: 41169 [2021-11-06 17:33:19,463 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-06 17:33:19,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41169 states. [2021-11-06 17:33:20,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41169 to 23265. [2021-11-06 17:33:20,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23265 states, 22833 states have (on average 1.368063767354268) internal successors, (31237), 22967 states have internal predecessors, (31237), 316 states have call successors, (316), 76 states have call predecessors, (316), 76 states have return successors, (572), 302 states have call predecessors, (572), 316 states have call successors, (572) [2021-11-06 17:33:20,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23265 states to 23265 states and 32125 transitions. [2021-11-06 17:33:20,488 INFO L78 Accepts]: Start accepts. Automaton has 23265 states and 32125 transitions. Word has length 144 [2021-11-06 17:33:20,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:33:20,489 INFO L470 AbstractCegarLoop]: Abstraction has 23265 states and 32125 transitions. [2021-11-06 17:33:20,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:33:20,489 INFO L276 IsEmpty]: Start isEmpty. Operand 23265 states and 32125 transitions. [2021-11-06 17:33:20,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-06 17:33:20,495 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:33:20,495 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:33:20,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-06 17:33:20,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:33:20,711 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION (and 40 more)] === [2021-11-06 17:33:20,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:33:20,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1039755780, now seen corresponding path program 1 times [2021-11-06 17:33:20,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:33:20,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864744201] [2021-11-06 17:33:20,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:33:20,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:33:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:33:21,121 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-06 17:33:21,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:33:21,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864744201] [2021-11-06 17:33:21,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864744201] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 17:33:21,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495469531] [2021-11-06 17:33:21,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:33:21,124 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:33:21,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:33:21,125 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 17:33:21,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-06 17:33:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:33:41,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 3508 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-06 17:33:41,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 17:33:41,831 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 17:33:41,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495469531] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 17:33:41,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-06 17:33:41,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 9 [2021-11-06 17:33:41,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487191906] [2021-11-06 17:33:41,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-06 17:33:41,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:33:41,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-06 17:33:41,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-06 17:33:41,833 INFO L87 Difference]: Start difference. First operand 23265 states and 32125 transitions. Second operand has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:33:44,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:33:44,839 INFO L93 Difference]: Finished difference Result 82307 states and 113013 transitions. [2021-11-06 17:33:44,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-06 17:33:44,839 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2021-11-06 17:33:44,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:33:44,974 INFO L225 Difference]: With dead ends: 82307 [2021-11-06 17:33:44,974 INFO L226 Difference]: Without dead ends: 59080 [2021-11-06 17:33:45,033 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-06 17:33:45,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59080 states. [2021-11-06 17:33:46,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59080 to 23272. [2021-11-06 17:33:46,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23272 states, 22840 states have (on average 1.3679509632224167) internal successors, (31244), 22974 states have internal predecessors, (31244), 316 states have call successors, (316), 76 states have call predecessors, (316), 76 states have return successors, (572), 302 states have call predecessors, (572), 316 states have call successors, (572) [2021-11-06 17:33:46,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23272 states to 23272 states and 32132 transitions. [2021-11-06 17:33:46,402 INFO L78 Accepts]: Start accepts. Automaton has 23272 states and 32132 transitions. Word has length 151 [2021-11-06 17:33:46,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:33:46,402 INFO L470 AbstractCegarLoop]: Abstraction has 23272 states and 32132 transitions. [2021-11-06 17:33:46,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:33:46,402 INFO L276 IsEmpty]: Start isEmpty. Operand 23272 states and 32132 transitions. [2021-11-06 17:33:46,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-06 17:33:46,408 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:33:46,408 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:33:46,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-06 17:33:46,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:33:46,636 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION (and 40 more)] === [2021-11-06 17:33:46,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:33:46,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1994642851, now seen corresponding path program 2 times [2021-11-06 17:33:46,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:33:46,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296744821] [2021-11-06 17:33:46,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:33:46,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:33:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:33:46,988 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-06 17:33:46,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:33:46,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296744821] [2021-11-06 17:33:46,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296744821] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 17:33:46,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809604999] [2021-11-06 17:33:46,989 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-06 17:33:46,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:33:46,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:33:46,992 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 17:33:46,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-06 17:36:05,369 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-06 17:36:05,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-06 17:36:05,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 3550 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-06 17:36:05,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 17:36:06,007 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-06 17:36:06,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809604999] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 17:36:06,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-06 17:36:06,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 12 [2021-11-06 17:36:06,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49424467] [2021-11-06 17:36:06,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-06 17:36:06,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:36:06,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-06 17:36:06,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-06 17:36:06,009 INFO L87 Difference]: Start difference. First operand 23272 states and 32132 transitions. Second operand has 12 states, 12 states have (on average 12.916666666666666) internal successors, (155), 12 states have internal predecessors, (155), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:36:11,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:36:11,131 INFO L93 Difference]: Finished difference Result 100224 states and 137420 transitions. [2021-11-06 17:36:11,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-06 17:36:11,132 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.916666666666666) internal successors, (155), 12 states have internal predecessors, (155), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2021-11-06 17:36:11,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:36:11,300 INFO L225 Difference]: With dead ends: 100224 [2021-11-06 17:36:11,300 INFO L226 Difference]: Without dead ends: 76991 [2021-11-06 17:36:11,363 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-11-06 17:36:11,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76991 states. [2021-11-06 17:36:12,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76991 to 23279. [2021-11-06 17:36:12,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23279 states, 22847 states have (on average 1.3678382282137698) internal successors, (31251), 22981 states have internal predecessors, (31251), 316 states have call successors, (316), 76 states have call predecessors, (316), 76 states have return successors, (572), 302 states have call predecessors, (572), 316 states have call successors, (572) [2021-11-06 17:36:12,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23279 states to 23279 states and 32139 transitions. [2021-11-06 17:36:12,905 INFO L78 Accepts]: Start accepts. Automaton has 23279 states and 32139 transitions. Word has length 158 [2021-11-06 17:36:12,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:36:12,906 INFO L470 AbstractCegarLoop]: Abstraction has 23279 states and 32139 transitions. [2021-11-06 17:36:12,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.916666666666666) internal successors, (155), 12 states have internal predecessors, (155), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:36:12,906 INFO L276 IsEmpty]: Start isEmpty. Operand 23279 states and 32139 transitions. [2021-11-06 17:36:12,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-06 17:36:12,911 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:36:12,912 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-11-06 17:36:12,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-06 17:36:13,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-06 17:36:13,127 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION (and 40 more)] === [2021-11-06 17:36:13,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:36:13,128 INFO L85 PathProgramCache]: Analyzing trace with hash -523498716, now seen corresponding path program 3 times [2021-11-06 17:36:13,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:36:13,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061378243] [2021-11-06 17:36:13,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:36:13,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:36:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:36:13,483 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-06 17:36:13,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:36:13,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061378243] [2021-11-06 17:36:13,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061378243] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 17:36:13,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094624265] [2021-11-06 17:36:13,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-06 17:36:13,484 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:36:13,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:36:13,485 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 17:36:13,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-06 17:41:24,909 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-06 17:41:24,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-06 17:41:25,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 3592 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-06 17:41:25,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 17:41:25,708 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-06 17:41:25,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094624265] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 17:41:25,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-06 17:41:25,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10] total 11 [2021-11-06 17:41:25,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826727488] [2021-11-06 17:41:25,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-06 17:41:25,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:41:25,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-06 17:41:25,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-06 17:41:25,710 INFO L87 Difference]: Start difference. First operand 23279 states and 32139 transitions. Second operand has 11 states, 11 states have (on average 13.818181818181818) internal successors, (152), 11 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:41:27,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:41:27,091 INFO L93 Difference]: Finished difference Result 46516 states and 64238 transitions. [2021-11-06 17:41:27,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-06 17:41:27,092 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.818181818181818) internal successors, (152), 11 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2021-11-06 17:41:27,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:41:27,137 INFO L225 Difference]: With dead ends: 46516 [2021-11-06 17:41:27,137 INFO L226 Difference]: Without dead ends: 23283 [2021-11-06 17:41:27,176 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 160 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-06 17:41:27,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23283 states. [2021-11-06 17:41:28,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23283 to 23283. [2021-11-06 17:41:28,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23283 states, 22851 states have (on average 1.3677738392192902) internal successors, (31255), 22985 states have internal predecessors, (31255), 316 states have call successors, (316), 76 states have call predecessors, (316), 76 states have return successors, (572), 302 states have call predecessors, (572), 316 states have call successors, (572) [2021-11-06 17:41:28,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23283 states to 23283 states and 32143 transitions. [2021-11-06 17:41:28,406 INFO L78 Accepts]: Start accepts. Automaton has 23283 states and 32143 transitions. Word has length 165 [2021-11-06 17:41:28,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:41:28,406 INFO L470 AbstractCegarLoop]: Abstraction has 23283 states and 32143 transitions. [2021-11-06 17:41:28,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.818181818181818) internal successors, (152), 11 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:41:28,406 INFO L276 IsEmpty]: Start isEmpty. Operand 23283 states and 32143 transitions. [2021-11-06 17:41:28,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-06 17:41:28,411 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:41:28,411 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:41:28,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-06 17:41:28,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:41:28,628 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION (and 40 more)] === [2021-11-06 17:41:28,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:41:28,628 INFO L85 PathProgramCache]: Analyzing trace with hash 226217248, now seen corresponding path program 4 times [2021-11-06 17:41:28,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:41:28,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697880536] [2021-11-06 17:41:28,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:41:28,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:41:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:41:29,042 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-06 17:41:29,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:41:29,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697880536] [2021-11-06 17:41:29,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697880536] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 17:41:29,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199187460] [2021-11-06 17:41:29,043 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-06 17:41:29,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:41:29,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:41:29,044 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 17:41:29,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-06 17:42:26,456 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-06 17:42:26,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-06 17:42:26,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 3616 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-06 17:42:26,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 17:42:26,984 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-06 17:42:26,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199187460] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 17:42:26,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-06 17:42:26,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11] total 12 [2021-11-06 17:42:26,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949435732] [2021-11-06 17:42:26,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-06 17:42:26,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:42:26,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-06 17:42:26,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-06 17:42:26,986 INFO L87 Difference]: Start difference. First operand 23283 states and 32143 transitions. Second operand has 12 states, 12 states have (on average 12.75) internal successors, (153), 12 states have internal predecessors, (153), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:42:33,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:42:33,291 INFO L93 Difference]: Finished difference Result 118139 states and 161821 transitions. [2021-11-06 17:42:33,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-06 17:42:33,292 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.75) internal successors, (153), 12 states have internal predecessors, (153), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2021-11-06 17:42:33,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:42:33,488 INFO L225 Difference]: With dead ends: 118139 [2021-11-06 17:42:33,488 INFO L226 Difference]: Without dead ends: 94903 [2021-11-06 17:42:33,550 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-06 17:42:33,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94903 states. [2021-11-06 17:42:35,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94903 to 23287. [2021-11-06 17:42:35,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23287 states, 22855 states have (on average 1.3677094727630716) internal successors, (31259), 22989 states have internal predecessors, (31259), 316 states have call successors, (316), 76 states have call predecessors, (316), 76 states have return successors, (572), 302 states have call predecessors, (572), 316 states have call successors, (572) [2021-11-06 17:42:35,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23287 states to 23287 states and 32147 transitions. [2021-11-06 17:42:35,266 INFO L78 Accepts]: Start accepts. Automaton has 23287 states and 32147 transitions. Word has length 169 [2021-11-06 17:42:35,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:42:35,267 INFO L470 AbstractCegarLoop]: Abstraction has 23287 states and 32147 transitions. [2021-11-06 17:42:35,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.75) internal successors, (153), 12 states have internal predecessors, (153), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:42:35,267 INFO L276 IsEmpty]: Start isEmpty. Operand 23287 states and 32147 transitions. [2021-11-06 17:42:35,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-06 17:42:35,272 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:42:35,272 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:42:35,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-06 17:42:35,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:42:35,496 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION (and 40 more)] === [2021-11-06 17:42:35,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:42:35,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1010963236, now seen corresponding path program 5 times [2021-11-06 17:42:35,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:42:35,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189834801] [2021-11-06 17:42:35,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:42:35,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:42:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:42:35,909 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-06 17:42:35,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:42:35,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189834801] [2021-11-06 17:42:35,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189834801] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 17:42:35,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682567093] [2021-11-06 17:42:35,910 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-06 17:42:35,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 17:42:35,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:42:35,911 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 17:42:35,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process Killed by 15