./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 c36dfa3b 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-wip.dd.seqcomp-c36dfa3 [2021-11-04 08:12:51,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 08:12:51,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 08:12:51,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 08:12:51,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 08:12:51,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 08:12:51,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 08:12:51,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 08:12:51,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 08:12:51,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 08:12:51,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 08:12:51,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 08:12:51,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 08:12:51,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 08:12:51,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 08:12:51,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 08:12:51,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 08:12:51,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 08:12:51,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 08:12:51,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 08:12:51,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 08:12:51,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 08:12:51,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 08:12:51,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 08:12:51,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 08:12:51,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 08:12:51,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 08:12:51,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 08:12:51,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 08:12:51,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 08:12:51,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 08:12:51,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 08:12:51,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 08:12:51,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 08:12:51,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 08:12:51,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 08:12:51,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 08:12:51,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 08:12:51,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 08:12:51,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 08:12:51,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 08:12:51,599 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 08:12:51,620 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 08:12:51,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 08:12:51,621 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 08:12:51,621 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 08:12:51,621 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 08:12:51,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 08:12:51,622 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 08:12:51,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 08:12:51,622 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 08:12:51,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 08:12:51,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 08:12:51,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 08:12:51,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 08:12:51,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 08:12:51,623 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 08:12:51,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 08:12:51,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 08:12:51,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 08:12:51,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 08:12:51,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 08:12:51,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 08:12:51,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 08:12:51,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 08:12:51,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 08:12:51,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 08:12:51,624 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 08:12:51,624 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 08:12:51,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 08:12:51,625 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 08:12:51,625 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7918e78c7fa8e57a6cd382ed800c3c73f2f498c616ea3e9ed6a8775509cf80ff [2021-11-04 08:12:51,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 08:12:51,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 08:12:51,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 08:12:51,838 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 08:12:51,839 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 08:12:51,840 INFO L432 ainManager$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 [2021-11-04 08:12:51,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9e972ef0/9621b548cd3e4f8380291c33b5936289/FLAG279731d6d [2021-11-04 08:12:52,517 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 08:12:52,518 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 [2021-11-04 08:12:52,575 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9e972ef0/9621b548cd3e4f8380291c33b5936289/FLAG279731d6d [2021-11-04 08:12:52,877 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9e972ef0/9621b548cd3e4f8380291c33b5936289 [2021-11-04 08:12:52,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 08:12:52,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 08:12:52,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 08:12:52,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 08:12:52,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 08:12:52,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 08:12:52" (1/1) ... [2021-11-04 08:12:52,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dbd5ae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:12:52, skipping insertion in model container [2021-11-04 08:12:52,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 08:12:52" (1/1) ... [2021-11-04 08:12:52,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 08:12:52,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 08:12:54,600 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] [2021-11-04 08:12:54,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 08:12:54,721 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 08:12:54,949 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] [2021-11-04 08:12:54,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 08:12:55,047 INFO L208 MainTranslator]: Completed translation [2021-11-04 08:12:55,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:12:55 WrapperNode [2021-11-04 08:12:55,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 08:12:55,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 08:12:55,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 08:12:55,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 08:12:55,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:12:55" (1/1) ... [2021-11-04 08:12:55,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:12:55" (1/1) ... [2021-11-04 08:12:55,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 08:12:55,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 08:12:55,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 08:12:55,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 08:12:55,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:12:55" (1/1) ... [2021-11-04 08:12:55,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:12:55" (1/1) ... [2021-11-04 08:12:56,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:12:55" (1/1) ... [2021-11-04 08:12:56,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:12:55" (1/1) ... [2021-11-04 08:12:56,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:12:55" (1/1) ... [2021-11-04 08:12:56,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:12:55" (1/1) ... [2021-11-04 08:12:56,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:12:55" (1/1) ... [2021-11-04 08:12:56,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 08:12:56,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 08:12:56,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 08:12:56,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 08:12:56,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:12:55" (1/1) ... [2021-11-04 08:12:56,920 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 08:12:56,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 08:12:56,937 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) [2021-11-04 08:12:56,956 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 [2021-11-04 08:12:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-04 08:12:56,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-04 08:12:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-04 08:12:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 08:12:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 08:12:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2021-11-04 08:12:56,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2021-11-04 08:12:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2021-11-04 08:12:56,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2021-11-04 08:12:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2021-11-04 08:12:56,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2021-11-04 08:12:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2021-11-04 08:12:56,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2021-11-04 08:12:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 08:12:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 08:12:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2021-11-04 08:12:56,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2021-11-04 08:12:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 08:12:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 08:12:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2021-11-04 08:12:56,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2021-11-04 08:12:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 08:12:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2021-11-04 08:12:56,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2021-11-04 08:12:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 08:12:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 08:12:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2021-11-04 08:12:56,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2021-11-04 08:12:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2021-11-04 08:12:56,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2021-11-04 08:12:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 08:12:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2021-11-04 08:12:56,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2021-11-04 08:12:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 08:12:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 08:12:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 08:12:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 08:12:56,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 08:12:56,971 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2021-11-04 08:12:56,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2021-11-04 08:12:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-04 08:12:56,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-04 08:12:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2021-11-04 08:12:56,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2021-11-04 08:12:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2021-11-04 08:12:56,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2021-11-04 08:12:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 08:12:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 08:12:56,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 08:13:01,673 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 08:13:01,673 INFO L299 CfgBuilder]: Removed 6842 assume(true) statements. [2021-11-04 08:13:01,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 08:13:01 BoogieIcfgContainer [2021-11-04 08:13:01,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 08:13:01,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 08:13:01,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 08:13:01,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 08:13:01,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 08:12:52" (1/3) ... [2021-11-04 08:13:01,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa1a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 08:13:01, skipping insertion in model container [2021-11-04 08:13:01,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:12:55" (2/3) ... [2021-11-04 08:13:01,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa1a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 08:13:01, skipping insertion in model container [2021-11-04 08:13:01,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 08:13:01" (3/3) ... [2021-11-04 08:13:01,687 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2021-11-04 08:13:01,691 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 08:13:01,691 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 43 error locations. [2021-11-04 08:13:01,740 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 08:13:01,744 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 [2021-11-04 08:13:01,745 INFO L340 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2021-11-04 08:13:01,826 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) [2021-11-04 08:13:01,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-04 08:13:01,833 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:13:01,834 INFO L514 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] [2021-11-04 08:13:01,834 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)] === [2021-11-04 08:13:01,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:13:01,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1860654671, now seen corresponding path program 1 times [2021-11-04 08:13:01,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:13:01,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585117915] [2021-11-04 08:13:01,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:13:01,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:13:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:13:02,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 08:13:02,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:13:02,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585117915] [2021-11-04 08:13:02,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585117915] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:13:02,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:13:02,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 08:13:02,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760682289] [2021-11-04 08:13:02,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:13:02,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-04 08:13:02,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:13:02,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-04 08:13:02,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 08:13:02,270 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) [2021-11-04 08:13:07,672 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:13:18,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:13:18,936 INFO L93 Difference]: Finished difference Result 13124 states and 18742 transitions. [2021-11-04 08:13:18,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-04 08:13:18,942 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 [2021-11-04 08:13:18,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:13:18,995 INFO L225 Difference]: With dead ends: 13124 [2021-11-04 08:13:18,996 INFO L226 Difference]: Without dead ends: 6519 [2021-11-04 08:13:19,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 08:13:19,031 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8794 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14060.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 8795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.53ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8794 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15979.54ms IncrementalHoareTripleChecker+Time [2021-11-04 08:13:19,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 8795 Unknown, 0 Unchecked, 35.53ms Time], IncrementalHoareTripleChecker [0 Valid, 8794 Invalid, 1 Unknown, 0 Unchecked, 15979.54ms Time] [2021-11-04 08:13:19,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6519 states. [2021-11-04 08:13:19,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6519 to 6519. [2021-11-04 08:13:19,245 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) [2021-11-04 08:13:19,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6519 states to 6519 states and 8893 transitions. [2021-11-04 08:13:19,276 INFO L78 Accepts]: Start accepts. Automaton has 6519 states and 8893 transitions. Word has length 66 [2021-11-04 08:13:19,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:13:19,277 INFO L470 AbstractCegarLoop]: Abstraction has 6519 states and 8893 transitions. [2021-11-04 08:13:19,277 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) [2021-11-04 08:13:19,277 INFO L276 IsEmpty]: Start isEmpty. Operand 6519 states and 8893 transitions. [2021-11-04 08:13:19,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-04 08:13:19,285 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:13:19,285 INFO L514 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] [2021-11-04 08:13:19,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 08:13:19,286 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)] === [2021-11-04 08:13:19,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:13:19,289 INFO L85 PathProgramCache]: Analyzing trace with hash -2004039231, now seen corresponding path program 1 times [2021-11-04 08:13:19,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:13:19,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728248143] [2021-11-04 08:13:19,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:13:19,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:13:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:13:19,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 08:13:19,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:13:19,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728248143] [2021-11-04 08:13:19,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728248143] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:13:19,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:13:19,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:13:19,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057153283] [2021-11-04 08:13:19,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:13:19,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:13:19,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:13:19,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:13:19,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:13:19,588 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) [2021-11-04 08:13:43,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:13:43,286 INFO L93 Difference]: Finished difference Result 13005 states and 17755 transitions. [2021-11-04 08:13:43,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:13:43,287 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 [2021-11-04 08:13:43,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:13:43,315 INFO L225 Difference]: With dead ends: 13005 [2021-11-04 08:13:43,315 INFO L226 Difference]: Without dead ends: 6522 [2021-11-04 08:13:43,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.77ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:13:43,330 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 0 mSDsluCounter, 8854 mSDsCounter, 0 mSdLazyCounter, 17491 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20190.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 17495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 73.80ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23039.95ms IncrementalHoareTripleChecker+Time [2021-11-04 08:13:43,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 292 Invalid, 17495 Unknown, 0 Unchecked, 73.80ms Time], IncrementalHoareTripleChecker [4 Valid, 17491 Invalid, 0 Unknown, 0 Unchecked, 23039.95ms Time] [2021-11-04 08:13:43,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6522 states. [2021-11-04 08:13:43,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6522 to 6522. [2021-11-04 08:13:43,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6522 states, 6390 states have (on average 1.3693270735524257) internal successors, (8750), 6457 states have internal predecessors, (8750), 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) [2021-11-04 08:13:43,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6522 states to 6522 states and 8896 transitions. [2021-11-04 08:13:43,508 INFO L78 Accepts]: Start accepts. Automaton has 6522 states and 8896 transitions. Word has length 66 [2021-11-04 08:13:43,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:13:43,509 INFO L470 AbstractCegarLoop]: Abstraction has 6522 states and 8896 transitions. [2021-11-04 08:13:43,509 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) [2021-11-04 08:13:43,509 INFO L276 IsEmpty]: Start isEmpty. Operand 6522 states and 8896 transitions. [2021-11-04 08:13:43,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-04 08:13:43,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:13:43,510 INFO L514 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] [2021-11-04 08:13:43,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 08:13:43,511 INFO L402 AbstractCegarLoop]: === Iteration 3 === 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)] === [2021-11-04 08:13:43,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:13:43,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1016452418, now seen corresponding path program 1 times [2021-11-04 08:13:43,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:13:43,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572483012] [2021-11-04 08:13:43,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:13:43,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:13:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:13:43,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-04 08:13:43,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:13:43,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572483012] [2021-11-04 08:13:43,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572483012] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:13:43,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:13:43,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:13:43,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867998014] [2021-11-04 08:13:43,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:13:43,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:13:43,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:13:43,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:13:43,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:13:43,727 INFO L87 Difference]: Start difference. First operand 6522 states and 8896 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2021-11-04 08:13:45,770 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:14:06,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:14:06,804 INFO L93 Difference]: Finished difference Result 13008 states and 17758 transitions. [2021-11-04 08:14:06,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:14:06,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 69 [2021-11-04 08:14:06,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:14:06,835 INFO L225 Difference]: With dead ends: 13008 [2021-11-04 08:14:06,835 INFO L226 Difference]: Without dead ends: 6526 [2021-11-04 08:14:06,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.49ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:14:06,856 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 0 mSDsluCounter, 8854 mSDsCounter, 0 mSdLazyCounter, 17490 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19625.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 17496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.05ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 17490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22563.93ms IncrementalHoareTripleChecker+Time [2021-11-04 08:14:06,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 292 Invalid, 17496 Unknown, 0 Unchecked, 54.05ms Time], IncrementalHoareTripleChecker [6 Valid, 17490 Invalid, 0 Unknown, 0 Unchecked, 22563.93ms Time] [2021-11-04 08:14:06,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6526 states. [2021-11-04 08:14:07,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6526 to 6526. [2021-11-04 08:14:07,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6526 states, 6394 states have (on average 1.3690960275258055) internal successors, (8754), 6461 states have internal predecessors, (8754), 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) [2021-11-04 08:14:07,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6526 states to 6526 states and 8900 transitions. [2021-11-04 08:14:07,122 INFO L78 Accepts]: Start accepts. Automaton has 6526 states and 8900 transitions. Word has length 69 [2021-11-04 08:14:07,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:14:07,124 INFO L470 AbstractCegarLoop]: Abstraction has 6526 states and 8900 transitions. [2021-11-04 08:14:07,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2021-11-04 08:14:07,124 INFO L276 IsEmpty]: Start isEmpty. Operand 6526 states and 8900 transitions. [2021-11-04 08:14:07,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-04 08:14:07,126 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:14:07,127 INFO L514 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] [2021-11-04 08:14:07,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 08:14:07,127 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)] === [2021-11-04 08:14:07,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:14:07,128 INFO L85 PathProgramCache]: Analyzing trace with hash -2019872778, now seen corresponding path program 1 times [2021-11-04 08:14:07,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:14:07,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533521898] [2021-11-04 08:14:07,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:14:07,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:14:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:14:07,324 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-04 08:14:07,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:14:07,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533521898] [2021-11-04 08:14:07,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533521898] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:14:07,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:14:07,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:14:07,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903728787] [2021-11-04 08:14:07,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:14:07,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:14:07,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:14:07,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:14:07,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:14:07,327 INFO L87 Difference]: Start difference. First operand 6526 states and 8900 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2021-11-04 08:14:37,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:14:37,879 INFO L93 Difference]: Finished difference Result 18257 states and 24809 transitions. [2021-11-04 08:14:37,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:14:37,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2021-11-04 08:14:37,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:14:37,937 INFO L225 Difference]: With dead ends: 18257 [2021-11-04 08:14:37,937 INFO L226 Difference]: Without dead ends: 11794 [2021-11-04 08:14:37,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:14:37,961 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 7134 mSDsluCounter, 8799 mSDsCounter, 0 mSdLazyCounter, 17935 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25220.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7134 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 17938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 67.02ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29720.18ms IncrementalHoareTripleChecker+Time [2021-11-04 08:14:37,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7134 Valid, 363 Invalid, 17938 Unknown, 0 Unchecked, 67.02ms Time], IncrementalHoareTripleChecker [3 Valid, 17935 Invalid, 0 Unknown, 0 Unchecked, 29720.18ms Time] [2021-11-04 08:14:37,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11794 states. [2021-11-04 08:14:38,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11794 to 11710. [2021-11-04 08:14:38,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11710 states, 11504 states have (on average 1.362047983310153) internal successors, (15669), 11591 states have internal predecessors, (15669), 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) [2021-11-04 08:14:38,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11710 states to 11710 states and 15935 transitions. [2021-11-04 08:14:38,243 INFO L78 Accepts]: Start accepts. Automaton has 11710 states and 15935 transitions. Word has length 73 [2021-11-04 08:14:38,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:14:38,245 INFO L470 AbstractCegarLoop]: Abstraction has 11710 states and 15935 transitions. [2021-11-04 08:14:38,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2021-11-04 08:14:38,246 INFO L276 IsEmpty]: Start isEmpty. Operand 11710 states and 15935 transitions. [2021-11-04 08:14:38,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-04 08:14:38,247 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:14:38,247 INFO L514 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 08:14:38,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 08:14:38,251 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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)] === [2021-11-04 08:14:38,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:14:38,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1707827334, now seen corresponding path program 1 times [2021-11-04 08:14:38,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:14:38,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609753324] [2021-11-04 08:14:38,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:14:38,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:14:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:14:38,545 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-04 08:14:38,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:14:38,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609753324] [2021-11-04 08:14:38,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609753324] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:14:38,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:14:38,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:14:38,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692899326] [2021-11-04 08:14:38,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:14:38,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:14:38,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:14:38,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:14:38,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:14:38,548 INFO L87 Difference]: Start difference. First operand 11710 states and 15935 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2021-11-04 08:15:15,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:15:15,092 INFO L93 Difference]: Finished difference Result 32982 states and 45127 transitions. [2021-11-04 08:15:15,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:15:15,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 86 [2021-11-04 08:15:15,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:15:15,186 INFO L225 Difference]: With dead ends: 32982 [2021-11-04 08:15:15,187 INFO L226 Difference]: Without dead ends: 21335 [2021-11-04 08:15:15,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.10ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:15:15,225 INFO L933 BasicCegarLoop]: 294 mSDtfsCounter, 7610 mSDsluCounter, 8788 mSDsCounter, 0 mSdLazyCounter, 21695 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29656.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7610 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 21705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.52ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35582.06ms IncrementalHoareTripleChecker+Time [2021-11-04 08:15:15,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7610 Valid, 443 Invalid, 21705 Unknown, 0 Unchecked, 61.52ms Time], IncrementalHoareTripleChecker [10 Valid, 21695 Invalid, 0 Unknown, 0 Unchecked, 35582.06ms Time] [2021-11-04 08:15:15,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21335 states. [2021-11-04 08:15:15,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21335 to 16820. [2021-11-04 08:15:15,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16820 states, 16529 states have (on average 1.3729203218585517) internal successors, (22693), 16639 states have internal predecessors, (22693), 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) [2021-11-04 08:15:15,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16820 states to 16820 states and 23173 transitions. [2021-11-04 08:15:15,874 INFO L78 Accepts]: Start accepts. Automaton has 16820 states and 23173 transitions. Word has length 86 [2021-11-04 08:15:15,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:15:15,874 INFO L470 AbstractCegarLoop]: Abstraction has 16820 states and 23173 transitions. [2021-11-04 08:15:15,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2021-11-04 08:15:15,876 INFO L276 IsEmpty]: Start isEmpty. Operand 16820 states and 23173 transitions. [2021-11-04 08:15:15,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-04 08:15:15,881 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:15:15,881 INFO L514 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] [2021-11-04 08:15:15,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 08:15:15,882 INFO L402 AbstractCegarLoop]: === Iteration 6 === 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)] === [2021-11-04 08:15:15,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:15:15,882 INFO L85 PathProgramCache]: Analyzing trace with hash -381327537, now seen corresponding path program 1 times [2021-11-04 08:15:15,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:15:15,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732119655] [2021-11-04 08:15:15,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:15:15,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:15:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:15:16,074 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-04 08:15:16,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:15:16,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732119655] [2021-11-04 08:15:16,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732119655] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:15:16,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:15:16,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:15:16,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059026303] [2021-11-04 08:15:16,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:15:16,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:15:16,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:15:16,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:15:16,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:15:16,077 INFO L87 Difference]: Start difference. First operand 16820 states and 23173 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2021-11-04 08:15:36,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:15:36,545 INFO L93 Difference]: Finished difference Result 33577 states and 46276 transitions. [2021-11-04 08:15:36,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:15:36,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 100 [2021-11-04 08:15:36,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:15:36,597 INFO L225 Difference]: With dead ends: 33577 [2021-11-04 08:15:36,597 INFO L226 Difference]: Without dead ends: 16820 [2021-11-04 08:15:36,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.69ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:15:36,623 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 8889 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8747 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16077.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8889 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 8748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.35ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19618.55ms IncrementalHoareTripleChecker+Time [2021-11-04 08:15:36,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8889 Valid, 146 Invalid, 8748 Unknown, 0 Unchecked, 26.35ms Time], IncrementalHoareTripleChecker [1 Valid, 8747 Invalid, 0 Unknown, 0 Unchecked, 19618.55ms Time] [2021-11-04 08:15:36,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16820 states. [2021-11-04 08:15:36,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16820 to 16820. [2021-11-04 08:15:36,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16820 states, 16529 states have (on average 1.3726783229475468) internal successors, (22689), 16639 states have internal predecessors, (22689), 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) [2021-11-04 08:15:36,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16820 states to 16820 states and 23169 transitions. [2021-11-04 08:15:36,971 INFO L78 Accepts]: Start accepts. Automaton has 16820 states and 23169 transitions. Word has length 100 [2021-11-04 08:15:36,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:15:36,972 INFO L470 AbstractCegarLoop]: Abstraction has 16820 states and 23169 transitions. [2021-11-04 08:15:36,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2021-11-04 08:15:36,973 INFO L276 IsEmpty]: Start isEmpty. Operand 16820 states and 23169 transitions. [2021-11-04 08:15:36,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-04 08:15:36,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:15:36,975 INFO L514 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] [2021-11-04 08:15:36,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 08:15:36,975 INFO L402 AbstractCegarLoop]: === Iteration 7 === 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)] === [2021-11-04 08:15:36,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:15:36,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1178780136, now seen corresponding path program 1 times [2021-11-04 08:15:36,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:15:36,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877224018] [2021-11-04 08:15:36,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:15:36,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:15:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:15:37,189 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 08:15:37,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:15:37,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877224018] [2021-11-04 08:15:37,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877224018] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:15:37,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:15:37,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 08:15:37,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955245481] [2021-11-04 08:15:37,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:15:37,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:15:37,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:15:37,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:15:37,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:15:37,191 INFO L87 Difference]: Start difference. First operand 16820 states and 23169 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 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) [2021-11-04 08:16:15,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:16:15,605 INFO L93 Difference]: Finished difference Result 24314 states and 33614 transitions. [2021-11-04 08:16:15,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:16:15,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 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 104 [2021-11-04 08:16:15,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:16:15,687 INFO L225 Difference]: With dead ends: 24314 [2021-11-04 08:16:15,687 INFO L226 Difference]: Without dead ends: 24254 [2021-11-04 08:16:15,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.70ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:16:15,702 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 6685 mSDsluCounter, 5923 mSDsCounter, 0 mSdLazyCounter, 18289 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29880.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6685 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 18369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 64.78ms SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 18289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37335.04ms IncrementalHoareTripleChecker+Time [2021-11-04 08:16:15,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6685 Valid, 389 Invalid, 18369 Unknown, 0 Unchecked, 64.78ms Time], IncrementalHoareTripleChecker [80 Valid, 18289 Invalid, 0 Unknown, 0 Unchecked, 37335.04ms Time] [2021-11-04 08:16:15,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24254 states. [2021-11-04 08:16:16,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24254 to 23246. [2021-11-04 08:16:16,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23246 states, 22814 states have (on average 1.3686332953449636) internal successors, (31224), 22948 states have internal predecessors, (31224), 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) [2021-11-04 08:16:16,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23246 states to 23246 states and 32112 transitions. [2021-11-04 08:16:16,222 INFO L78 Accepts]: Start accepts. Automaton has 23246 states and 32112 transitions. Word has length 104 [2021-11-04 08:16:16,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:16:16,222 INFO L470 AbstractCegarLoop]: Abstraction has 23246 states and 32112 transitions. [2021-11-04 08:16:16,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 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) [2021-11-04 08:16:16,222 INFO L276 IsEmpty]: Start isEmpty. Operand 23246 states and 32112 transitions. [2021-11-04 08:16:16,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-04 08:16:16,228 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:16:16,228 INFO L514 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] [2021-11-04 08:16:16,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 08:16:16,229 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)] === [2021-11-04 08:16:16,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:16:16,230 INFO L85 PathProgramCache]: Analyzing trace with hash 797154360, now seen corresponding path program 1 times [2021-11-04 08:16:16,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:16:16,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764826584] [2021-11-04 08:16:16,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:16:16,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:16:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:16:16,561 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-04 08:16:16,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:16:16,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764826584] [2021-11-04 08:16:16,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764826584] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-04 08:16:16,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843281206] [2021-11-04 08:16:16,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:16:16,563 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 08:16:16,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 08:16:16,564 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) [2021-11-04 08:16:16,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-04 08:16:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:16:17,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 3356 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-04 08:16:17,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 08:16:18,137 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-04 08:16:18,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-04 08:16:18,489 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-04 08:16:18,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843281206] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-04 08:16:18,490 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-04 08:16:18,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-11-04 08:16:18,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221070448] [2021-11-04 08:16:18,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-04 08:16:18,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-04 08:16:18,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:16:18,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-04 08:16:18,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-11-04 08:16:18,491 INFO L87 Difference]: Start difference. First operand 23246 states and 32112 transitions. Second operand has 8 states, 8 states have (on average 17.25) internal successors, (138), 8 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) [2021-11-04 08:16:44,365 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:17:29,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:17:29,005 INFO L93 Difference]: Finished difference Result 46524 states and 64324 transitions. [2021-11-04 08:17:29,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-04 08:17:29,008 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.25) internal successors, (138), 8 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 137 [2021-11-04 08:17:29,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:17:29,073 INFO L225 Difference]: With dead ends: 46524 [2021-11-04 08:17:29,074 INFO L226 Difference]: Without dead ends: 23315 [2021-11-04 08:17:29,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 72.99ms TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-11-04 08:17:29,128 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 0 mSDsluCounter, 17694 mSDsCounter, 0 mSdLazyCounter, 26253 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54598.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 26372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 129.50ms SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 26253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69268.86ms IncrementalHoareTripleChecker+Time [2021-11-04 08:17:29,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 438 Invalid, 26372 Unknown, 0 Unchecked, 129.50ms Time], IncrementalHoareTripleChecker [119 Valid, 26253 Invalid, 0 Unknown, 0 Unchecked, 69268.86ms Time] [2021-11-04 08:17:29,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23315 states. [2021-11-04 08:17:29,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23315 to 23315. [2021-11-04 08:17:29,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23315 states, 22883 states have (on average 1.3675217410304592) internal successors, (31293), 23017 states have internal predecessors, (31293), 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) [2021-11-04 08:17:29,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23315 states to 23315 states and 32181 transitions. [2021-11-04 08:17:29,627 INFO L78 Accepts]: Start accepts. Automaton has 23315 states and 32181 transitions. Word has length 137 [2021-11-04 08:17:29,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:17:29,627 INFO L470 AbstractCegarLoop]: Abstraction has 23315 states and 32181 transitions. [2021-11-04 08:17:29,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.25) internal successors, (138), 8 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) [2021-11-04 08:17:29,628 INFO L276 IsEmpty]: Start isEmpty. Operand 23315 states and 32181 transitions. [2021-11-04 08:17:29,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-04 08:17:29,631 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:17:29,632 INFO L514 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] [2021-11-04 08:17:29,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-04 08:17:29,850 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 [2021-11-04 08:17:29,851 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)] === [2021-11-04 08:17:29,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:17:29,851 INFO L85 PathProgramCache]: Analyzing trace with hash -227436861, now seen corresponding path program 2 times [2021-11-04 08:17:29,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:17:29,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563206610] [2021-11-04 08:17:29,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:17:29,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:17:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:17:30,154 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-04 08:17:30,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:17:30,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563206610] [2021-11-04 08:17:30,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563206610] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-04 08:17:30,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328702635] [2021-11-04 08:17:30,155 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-04 08:17:30,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 08:17:30,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 08:17:30,156 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) [2021-11-04 08:17:30,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-04 08:17:31,263 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-04 08:17:31,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-04 08:17:31,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 3013 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-04 08:17:31,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 08:17:31,492 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 [2021-11-04 08:17:31,811 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-04 08:17:31,811 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 08:17:31,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328702635] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:17:31,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-04 08:17:31,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-11-04 08:17:31,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367624364] [2021-11-04 08:17:31,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:17:31,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-04 08:17:31,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:17:31,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-04 08:17:31,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-04 08:17:31,813 INFO L87 Difference]: Start difference. First operand 23315 states and 32181 transitions. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 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) [2021-11-04 08:24:52,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:24:52,946 INFO L93 Difference]: Finished difference Result 100078 states and 137187 transitions. [2021-11-04 08:24:52,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-04 08:24:52,954 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 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 [2021-11-04 08:24:52,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:24:53,178 INFO L225 Difference]: With dead ends: 100078 [2021-11-04 08:24:53,179 INFO L226 Difference]: Without dead ends: 76847 [2021-11-04 08:24:53,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 418.40ms TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2021-11-04 08:24:53,263 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 61550 mSDsluCounter, 74928 mSDsCounter, 0 mSdLazyCounter, 89445 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 314072.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 61589 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 90028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 706.92ms SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 89445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 436048.20ms IncrementalHoareTripleChecker+Time [2021-11-04 08:24:53,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61589 Valid, 1422 Invalid, 90028 Unknown, 0 Unchecked, 706.92ms Time], IncrementalHoareTripleChecker [583 Valid, 89445 Invalid, 0 Unknown, 0 Unchecked, 436048.20ms Time] [2021-11-04 08:24:53,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76847 states. [2021-11-04 08:24:54,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76847 to 23327. [2021-11-04 08:24:54,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23327 states, 22895 states have (on average 1.367329111159642) internal successors, (31305), 23029 states have internal predecessors, (31305), 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) [2021-11-04 08:24:54,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23327 states to 23327 states and 32193 transitions. [2021-11-04 08:24:54,265 INFO L78 Accepts]: Start accepts. Automaton has 23327 states and 32193 transitions. Word has length 158 [2021-11-04 08:24:54,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:24:54,266 INFO L470 AbstractCegarLoop]: Abstraction has 23327 states and 32193 transitions. [2021-11-04 08:24:54,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 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) [2021-11-04 08:24:54,266 INFO L276 IsEmpty]: Start isEmpty. Operand 23327 states and 32193 transitions. [2021-11-04 08:24:54,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-04 08:24:54,271 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:24:54,271 INFO L514 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] [2021-11-04 08:24:54,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-04 08:24:54,487 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 [2021-11-04 08:24:54,487 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)] === [2021-11-04 08:24:54,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:24:54,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1278366280, now seen corresponding path program 1 times [2021-11-04 08:24:54,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:24:54,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113269432] [2021-11-04 08:24:54,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:24:54,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:24:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:24:55,051 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-04 08:24:55,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:24:55,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113269432] [2021-11-04 08:24:55,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113269432] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-04 08:24:55,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988555508] [2021-11-04 08:24:55,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:24:55,052 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 08:24:55,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 08:24:55,053 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) [2021-11-04 08:24:55,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-04 08:24:56,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:24:56,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 3503 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-04 08:24:56,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 08:24:56,445 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-04 08:24:56,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-04 08:24:56,995 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-04 08:24:56,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988555508] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-04 08:24:56,995 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-04 08:24:56,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2021-11-04 08:24:56,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984773003] [2021-11-04 08:24:56,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-04 08:24:56,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-04 08:24:56,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:24:56,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-04 08:24:56,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=148, Unknown=0, NotChecked=0, Total=272 [2021-11-04 08:24:56,997 INFO L87 Difference]: Start difference. First operand 23327 states and 32193 transitions. Second operand has 17 states, 17 states have (on average 8.705882352941176) internal successors, (148), 17 states have internal predecessors, (148), 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) [2021-11-04 08:24:58,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:25:01,507 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15