/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -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 -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:03:51,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:03:51,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:03:51,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:03:51,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:03:51,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:03:51,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:03:51,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:03:51,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:03:51,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:03:51,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:03:51,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:03:51,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:03:51,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:03:51,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:03:51,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:03:51,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:03:51,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:03:51,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:03:51,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:03:51,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:03:51,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:03:51,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:03:51,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:03:51,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:03:51,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:03:51,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:03:51,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:03:51,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:03:51,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:03:51,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:03:51,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:03:51,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:03:51,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:03:51,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:03:51,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:03:51,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:03:51,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:03:51,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:03:51,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:03:51,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:03:51,699 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:03:51,752 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:03:51,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:03:51,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:03:51,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:03:51,756 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:03:51,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:03:51,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:03:51,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:03:51,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:03:51,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:03:51,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:03:51,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:03:51,759 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:03:51,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:03:51,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:03:51,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:03:51,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:03:51,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:03:51,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:03:51,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:03:51,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:03:51,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:03:51,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:03:51,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:03:51,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:03:51,763 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:03:52,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:03:52,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:03:52,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:03:52,250 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:03:52,250 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:03:52,251 INFO L432 ainManager$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 [2020-12-22 15:03:52,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d78d021e/ef5e6d053dc54372b3cbf32f1ab154eb/FLAGed1779c28 [2020-12-22 15:03:53,552 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:03:53,553 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 [2020-12-22 15:03:53,634 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d78d021e/ef5e6d053dc54372b3cbf32f1ab154eb/FLAGed1779c28 [2020-12-22 15:03:53,774 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d78d021e/ef5e6d053dc54372b3cbf32f1ab154eb [2020-12-22 15:03:53,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:03:53,781 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:03:53,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:03:53,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:03:53,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:03:53,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:03:53" (1/1) ... [2020-12-22 15:03:53,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24ddd8c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:53, skipping insertion in model container [2020-12-22 15:03:53,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:03:53" (1/1) ... [2020-12-22 15:03:53,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:03:54,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:03:56,601 WARN L226 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] [2020-12-22 15:03:56,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:03:56,767 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:03:57,277 WARN L226 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] [2020-12-22 15:03:57,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:03:58,015 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:03:58,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:58 WrapperNode [2020-12-22 15:03:58,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:03:58,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:03:58,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:03:58,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:03:58,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:58" (1/1) ... [2020-12-22 15:03:58,196 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:58" (1/1) ... [2020-12-22 15:03:59,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:03:59,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:03:59,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:03:59,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:03:59,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:58" (1/1) ... [2020-12-22 15:03:59,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:58" (1/1) ... [2020-12-22 15:03:59,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:58" (1/1) ... [2020-12-22 15:03:59,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:58" (1/1) ... [2020-12-22 15:04:00,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:58" (1/1) ... [2020-12-22 15:04:00,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:58" (1/1) ... [2020-12-22 15:04:00,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:58" (1/1) ... [2020-12-22 15:04:00,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:04:00,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:04:00,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:04:00,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:04:00,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:04:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-12-22 15:04:01,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-12-22 15:04:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2020-12-22 15:04:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 15:04:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 15:04:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2020-12-22 15:04:01,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2020-12-22 15:04:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2020-12-22 15:04:01,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2020-12-22 15:04:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2020-12-22 15:04:01,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2020-12-22 15:04:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2020-12-22 15:04:01,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2020-12-22 15:04:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:04:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:04:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2020-12-22 15:04:01,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2020-12-22 15:04:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:04:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:04:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2020-12-22 15:04:01,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2020-12-22 15:04:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 15:04:01,093 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2020-12-22 15:04:01,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2020-12-22 15:04:01,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:04:01,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:04:01,093 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2020-12-22 15:04:01,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2020-12-22 15:04:01,093 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2020-12-22 15:04:01,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2020-12-22 15:04:01,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:04:01,094 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2020-12-22 15:04:01,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2020-12-22 15:04:01,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:04:01,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:04:01,094 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 15:04:01,094 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 15:04:01,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 15:04:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2020-12-22 15:04:01,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2020-12-22 15:04:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 15:04:01,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 15:04:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2020-12-22 15:04:01,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2020-12-22 15:04:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2020-12-22 15:04:01,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2020-12-22 15:04:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:04:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:04:01,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:04:29,870 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:04:29,871 INFO L299 CfgBuilder]: Removed 6842 assume(true) statements. [2020-12-22 15:04:29,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:04:29 BoogieIcfgContainer [2020-12-22 15:04:29,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:04:29,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:04:29,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:04:29,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:04:29,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:03:53" (1/3) ... [2020-12-22 15:04:29,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb38175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:04:29, skipping insertion in model container [2020-12-22 15:04:29,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:58" (2/3) ... [2020-12-22 15:04:29,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb38175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:04:29, skipping insertion in model container [2020-12-22 15:04:29,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:04:29" (3/3) ... [2020-12-22 15:04:29,889 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2020-12-22 15:04:29,896 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:04:29,904 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 43 error locations. [2020-12-22 15:04:29,926 INFO L253 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2020-12-22 15:04:29,979 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:04:29,979 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:04:29,979 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:04:29,979 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:04:29,979 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:04:29,980 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:04:29,980 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:04:29,980 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:04:30,096 INFO L276 IsEmpty]: Start isEmpty. Operand 6564 states. [2020-12-22 15:04:30,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 15:04:30,108 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:04:30,109 INFO L422 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] [2020-12-22 15:04:30,110 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:04:30,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:04:30,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1860654671, now seen corresponding path program 1 times [2020-12-22 15:04:30,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:04:30,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340616419] [2020-12-22 15:04:30,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:04:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:04:30,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:04:30,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340616419] [2020-12-22 15:04:30,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:04:30,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 15:04:30,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908949304] [2020-12-22 15:04:30,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 15:04:30,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:04:30,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 15:04:30,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 15:04:30,959 INFO L87 Difference]: Start difference. First operand 6564 states. Second operand 2 states. [2020-12-22 15:04:31,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:04:31,317 INFO L93 Difference]: Finished difference Result 13124 states and 18742 transitions. [2020-12-22 15:04:31,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 15:04:31,319 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 66 [2020-12-22 15:04:31,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:04:31,400 INFO L225 Difference]: With dead ends: 13124 [2020-12-22 15:04:31,401 INFO L226 Difference]: Without dead ends: 6519 [2020-12-22 15:04:31,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 15:04:31,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6519 states. [2020-12-22 15:04:31,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6519 to 6519. [2020-12-22 15:04:31,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6519 states. [2020-12-22 15:04:32,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6519 states to 6519 states and 8893 transitions. [2020-12-22 15:04:32,003 INFO L78 Accepts]: Start accepts. Automaton has 6519 states and 8893 transitions. Word has length 66 [2020-12-22 15:04:32,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:04:32,005 INFO L481 AbstractCegarLoop]: Abstraction has 6519 states and 8893 transitions. [2020-12-22 15:04:32,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 15:04:32,005 INFO L276 IsEmpty]: Start isEmpty. Operand 6519 states and 8893 transitions. [2020-12-22 15:04:32,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 15:04:32,018 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:04:32,019 INFO L422 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] [2020-12-22 15:04:32,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:04:32,021 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:04:32,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:04:32,022 INFO L82 PathProgramCache]: Analyzing trace with hash -2004039231, now seen corresponding path program 1 times [2020-12-22 15:04:32,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:04:32,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534448141] [2020-12-22 15:04:32,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:04:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:04:32,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:04:32,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534448141] [2020-12-22 15:04:32,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:04:32,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:04:32,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353126693] [2020-12-22 15:04:32,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:04:32,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:04:32,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:04:32,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:04:32,481 INFO L87 Difference]: Start difference. First operand 6519 states and 8893 transitions. Second operand 3 states. [2020-12-22 15:04:33,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:04:33,141 INFO L93 Difference]: Finished difference Result 18250 states and 24802 transitions. [2020-12-22 15:04:33,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:04:33,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-12-22 15:04:33,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:04:33,228 INFO L225 Difference]: With dead ends: 18250 [2020-12-22 15:04:33,228 INFO L226 Difference]: Without dead ends: 11787 [2020-12-22 15:04:33,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:04:33,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11787 states. [2020-12-22 15:04:33,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11787 to 11703. [2020-12-22 15:04:33,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11703 states. [2020-12-22 15:04:33,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11703 states to 11703 states and 15928 transitions. [2020-12-22 15:04:33,695 INFO L78 Accepts]: Start accepts. Automaton has 11703 states and 15928 transitions. Word has length 66 [2020-12-22 15:04:33,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:04:33,697 INFO L481 AbstractCegarLoop]: Abstraction has 11703 states and 15928 transitions. [2020-12-22 15:04:33,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:04:33,697 INFO L276 IsEmpty]: Start isEmpty. Operand 11703 states and 15928 transitions. [2020-12-22 15:04:33,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 15:04:33,700 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:04:33,700 INFO L422 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] [2020-12-22 15:04:33,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:04:33,701 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:04:33,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:04:33,704 INFO L82 PathProgramCache]: Analyzing trace with hash -589739877, now seen corresponding path program 1 times [2020-12-22 15:04:33,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:04:33,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791419867] [2020-12-22 15:04:33,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:04:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:04:34,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:04:34,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791419867] [2020-12-22 15:04:34,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:04:34,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:04:34,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591605311] [2020-12-22 15:04:34,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:04:34,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:04:34,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:04:34,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:04:34,060 INFO L87 Difference]: Start difference. First operand 11703 states and 15928 transitions. Second operand 3 states. [2020-12-22 15:04:35,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:04:35,002 INFO L93 Difference]: Finished difference Result 32975 states and 45120 transitions. [2020-12-22 15:04:35,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:04:35,003 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-12-22 15:04:35,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:04:35,128 INFO L225 Difference]: With dead ends: 32975 [2020-12-22 15:04:35,129 INFO L226 Difference]: Without dead ends: 21328 [2020-12-22 15:04:35,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:04:35,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21328 states. [2020-12-22 15:04:35,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21328 to 16813. [2020-12-22 15:04:35,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16813 states. [2020-12-22 15:04:35,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16813 states to 16813 states and 23166 transitions. [2020-12-22 15:04:35,787 INFO L78 Accepts]: Start accepts. Automaton has 16813 states and 23166 transitions. Word has length 79 [2020-12-22 15:04:35,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:04:35,788 INFO L481 AbstractCegarLoop]: Abstraction has 16813 states and 23166 transitions. [2020-12-22 15:04:35,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:04:35,788 INFO L276 IsEmpty]: Start isEmpty. Operand 16813 states and 23166 transitions. [2020-12-22 15:04:35,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 15:04:35,791 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:04:35,791 INFO L422 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] [2020-12-22 15:04:35,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:04:35,792 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:04:35,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:04:35,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1126365532, now seen corresponding path program 1 times [2020-12-22 15:04:35,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:04:35,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798278971] [2020-12-22 15:04:35,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:04:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:04:36,321 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:04:36,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798278971] [2020-12-22 15:04:36,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:04:36,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 15:04:36,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785424696] [2020-12-22 15:04:36,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 15:04:36,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:04:36,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 15:04:36,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:04:36,326 INFO L87 Difference]: Start difference. First operand 16813 states and 23166 transitions. Second operand 5 states. [2020-12-22 15:04:39,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:04:39,537 INFO L93 Difference]: Finished difference Result 50319 states and 69360 transitions. [2020-12-22 15:04:39,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 15:04:39,538 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2020-12-22 15:04:39,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:04:39,671 INFO L225 Difference]: With dead ends: 50319 [2020-12-22 15:04:39,671 INFO L226 Difference]: Without dead ends: 33538 [2020-12-22 15:04:39,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 15:04:39,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33538 states. [2020-12-22 15:04:40,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33538 to 16805. [2020-12-22 15:04:40,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16805 states. [2020-12-22 15:04:40,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16805 states to 16805 states and 23152 transitions. [2020-12-22 15:04:40,819 INFO L78 Accepts]: Start accepts. Automaton has 16805 states and 23152 transitions. Word has length 93 [2020-12-22 15:04:40,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:04:40,820 INFO L481 AbstractCegarLoop]: Abstraction has 16805 states and 23152 transitions. [2020-12-22 15:04:40,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 15:04:40,821 INFO L276 IsEmpty]: Start isEmpty. Operand 16805 states and 23152 transitions. [2020-12-22 15:04:40,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 15:04:40,823 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:04:40,823 INFO L422 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] [2020-12-22 15:04:40,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:04:40,824 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:04:40,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:04:40,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1000149916, now seen corresponding path program 1 times [2020-12-22 15:04:40,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:04:40,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116903422] [2020-12-22 15:04:40,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:04:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:04:41,204 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:04:41,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116903422] [2020-12-22 15:04:41,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:04:41,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:04:41,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752021102] [2020-12-22 15:04:41,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:04:41,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:04:41,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:04:41,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:04:41,209 INFO L87 Difference]: Start difference. First operand 16805 states and 23152 transitions. Second operand 4 states. [2020-12-22 15:04:42,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:04:42,783 INFO L93 Difference]: Finished difference Result 38134 states and 52387 transitions. [2020-12-22 15:04:42,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 15:04:42,784 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 97 [2020-12-22 15:04:42,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:04:42,859 INFO L225 Difference]: With dead ends: 38134 [2020-12-22 15:04:42,859 INFO L226 Difference]: Without dead ends: 21385 [2020-12-22 15:04:42,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:04:42,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21385 states. [2020-12-22 15:04:43,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21385 to 16805. [2020-12-22 15:04:43,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16805 states. [2020-12-22 15:04:43,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16805 states to 16805 states and 23148 transitions. [2020-12-22 15:04:43,636 INFO L78 Accepts]: Start accepts. Automaton has 16805 states and 23148 transitions. Word has length 97 [2020-12-22 15:04:43,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:04:43,638 INFO L481 AbstractCegarLoop]: Abstraction has 16805 states and 23148 transitions. [2020-12-22 15:04:43,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:04:43,643 INFO L276 IsEmpty]: Start isEmpty. Operand 16805 states and 23148 transitions. [2020-12-22 15:04:43,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-22 15:04:43,644 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:04:43,645 INFO L422 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] [2020-12-22 15:04:43,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 15:04:43,648 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:04:43,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:04:43,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1640123267, now seen corresponding path program 1 times [2020-12-22 15:04:43,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:04:43,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258656724] [2020-12-22 15:04:43,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:04:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:04:44,167 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 15:04:44,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258656724] [2020-12-22 15:04:44,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:04:44,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 15:04:44,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109927976] [2020-12-22 15:04:44,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:04:44,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:04:44,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:04:44,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:04:44,169 INFO L87 Difference]: Start difference. First operand 16805 states and 23148 transitions. Second operand 3 states. [2020-12-22 15:04:45,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:04:45,510 INFO L93 Difference]: Finished difference Result 24299 states and 33593 transitions. [2020-12-22 15:04:45,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:04:45,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2020-12-22 15:04:45,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:04:45,589 INFO L225 Difference]: With dead ends: 24299 [2020-12-22 15:04:45,590 INFO L226 Difference]: Without dead ends: 24239 [2020-12-22 15:04:45,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:04:45,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24239 states. [2020-12-22 15:04:46,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24239 to 23231. [2020-12-22 15:04:46,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23231 states. [2020-12-22 15:04:46,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23231 states to 23231 states and 32091 transitions. [2020-12-22 15:04:46,565 INFO L78 Accepts]: Start accepts. Automaton has 23231 states and 32091 transitions. Word has length 101 [2020-12-22 15:04:46,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:04:46,565 INFO L481 AbstractCegarLoop]: Abstraction has 23231 states and 32091 transitions. [2020-12-22 15:04:46,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:04:46,565 INFO L276 IsEmpty]: Start isEmpty. Operand 23231 states and 32091 transitions. [2020-12-22 15:04:46,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-12-22 15:04:46,574 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:04:46,574 INFO L422 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] [2020-12-22 15:04:46,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 15:04:46,575 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:04:46,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:04:46,575 INFO L82 PathProgramCache]: Analyzing trace with hash -643035069, now seen corresponding path program 1 times [2020-12-22 15:04:46,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:04:46,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408654426] [2020-12-22 15:04:46,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:04:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:04:47,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 15:04:47,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408654426] [2020-12-22 15:04:47,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:04:47,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 15:04:47,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812945463] [2020-12-22 15:04:47,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 15:04:47,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:04:47,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 15:04:47,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:04:47,422 INFO L87 Difference]: Start difference. First operand 23231 states and 32091 transitions. Second operand 5 states. [2020-12-22 15:04:55,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:04:55,882 INFO L93 Difference]: Finished difference Result 124465 states and 172905 transitions. [2020-12-22 15:04:55,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 15:04:55,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 134 [2020-12-22 15:04:55,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:04:56,296 INFO L225 Difference]: With dead ends: 124465 [2020-12-22 15:04:56,297 INFO L226 Difference]: Without dead ends: 101290 [2020-12-22 15:04:56,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 15:04:56,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101290 states. [2020-12-22 15:04:58,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101290 to 23243. [2020-12-22 15:04:58,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23243 states. [2020-12-22 15:04:58,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23243 states to 23243 states and 32103 transitions. [2020-12-22 15:04:58,759 INFO L78 Accepts]: Start accepts. Automaton has 23243 states and 32103 transitions. Word has length 134 [2020-12-22 15:04:58,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:04:58,759 INFO L481 AbstractCegarLoop]: Abstraction has 23243 states and 32103 transitions. [2020-12-22 15:04:58,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 15:04:58,759 INFO L276 IsEmpty]: Start isEmpty. Operand 23243 states and 32103 transitions. [2020-12-22 15:04:58,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-12-22 15:04:58,766 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:04:58,766 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:04:58,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 15:04:58,767 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:04:58,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:04:58,768 INFO L82 PathProgramCache]: Analyzing trace with hash 739317803, now seen corresponding path program 1 times [2020-12-22 15:04:58,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:04:58,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100684779] [2020-12-22 15:04:58,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:04:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:04:59,591 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 15:04:59,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100684779] [2020-12-22 15:04:59,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:04:59,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:04:59,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752064527] [2020-12-22 15:04:59,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:04:59,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:04:59,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:04:59,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:04:59,594 INFO L87 Difference]: Start difference. First operand 23243 states and 32103 transitions. Second operand 3 states. [2020-12-22 15:05:01,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:05:01,326 INFO L93 Difference]: Finished difference Result 46469 states and 64207 transitions. [2020-12-22 15:05:01,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:05:01,328 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2020-12-22 15:05:01,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:05:01,406 INFO L225 Difference]: With dead ends: 46469 [2020-12-22 15:05:01,407 INFO L226 Difference]: Without dead ends: 23262 [2020-12-22 15:05:01,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:05:01,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23262 states. [2020-12-22 15:05:02,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23262 to 23262. [2020-12-22 15:05:02,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23262 states. [2020-12-22 15:05:02,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23262 states to 23262 states and 32122 transitions. [2020-12-22 15:05:02,906 INFO L78 Accepts]: Start accepts. Automaton has 23262 states and 32122 transitions. Word has length 140 [2020-12-22 15:05:02,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:05:02,906 INFO L481 AbstractCegarLoop]: Abstraction has 23262 states and 32122 transitions. [2020-12-22 15:05:02,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:05:02,907 INFO L276 IsEmpty]: Start isEmpty. Operand 23262 states and 32122 transitions. [2020-12-22 15:05:02,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-12-22 15:05:02,913 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:05:02,913 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:05:02,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 15:05:02,915 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:05:02,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:05:02,915 INFO L82 PathProgramCache]: Analyzing trace with hash -642328544, now seen corresponding path program 1 times [2020-12-22 15:05:02,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:05:02,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019762888] [2020-12-22 15:05:02,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:05:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:05:03,876 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-22 15:05:03,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019762888] [2020-12-22 15:05:03,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488969994] [2020-12-22 15:05:03,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:05:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:05:06,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 3473 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-22 15:05:06,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 15:05:06,339 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 15:05:06,639 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 15:05:06,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 15:05:06,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2020-12-22 15:05:06,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328616126] [2020-12-22 15:05:06,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 15:05:06,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:05:06,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 15:05:06,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-12-22 15:05:06,643 INFO L87 Difference]: Start difference. First operand 23262 states and 32122 transitions. Second operand 8 states. [2020-12-22 15:05:07,551 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2020-12-22 15:05:07,720 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2020-12-22 15:05:07,894 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2020-12-22 15:05:23,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:05:23,464 INFO L93 Difference]: Finished difference Result 172037 states and 235112 transitions. [2020-12-22 15:05:23,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 15:05:23,465 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 147 [2020-12-22 15:05:23,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:05:24,650 INFO L225 Difference]: With dead ends: 172037 [2020-12-22 15:05:24,650 INFO L226 Difference]: Without dead ends: 148838 [2020-12-22 15:05:24,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2020-12-22 15:05:24,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148838 states. [2020-12-22 15:05:28,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148838 to 23274. [2020-12-22 15:05:28,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23274 states. [2020-12-22 15:05:28,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23274 states to 23274 states and 32134 transitions. [2020-12-22 15:05:28,089 INFO L78 Accepts]: Start accepts. Automaton has 23274 states and 32134 transitions. Word has length 147 [2020-12-22 15:05:28,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:05:28,090 INFO L481 AbstractCegarLoop]: Abstraction has 23274 states and 32134 transitions. [2020-12-22 15:05:28,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 15:05:28,090 INFO L276 IsEmpty]: Start isEmpty. Operand 23274 states and 32134 transitions. [2020-12-22 15:05:28,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-12-22 15:05:28,097 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:05:28,098 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:05:28,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-12-22 15:05:28,314 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:05:28,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:05:28,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1301625995, now seen corresponding path program 1 times [2020-12-22 15:05:28,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:05:28,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13982269] [2020-12-22 15:05:28,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:05:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:05:29,061 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-22 15:05:29,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13982269] [2020-12-22 15:05:29,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139411899] [2020-12-22 15:05:29,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:07:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:07:01,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 3494 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 15:07:01,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 15:07:01,407 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-22 15:07:01,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 15:07:01,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-12-22 15:07:01,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516026] [2020-12-22 15:07:01,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 15:07:01,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:07:01,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 15:07:01,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 15:07:01,410 INFO L87 Difference]: Start difference. First operand 23274 states and 32134 transitions. Second operand 6 states. [2020-12-22 15:07:03,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:07:03,491 INFO L93 Difference]: Finished difference Result 46534 states and 64276 transitions. [2020-12-22 15:07:03,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 15:07:03,492 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2020-12-22 15:07:03,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:07:03,551 INFO L225 Difference]: With dead ends: 46534 [2020-12-22 15:07:03,551 INFO L226 Difference]: Without dead ends: 23297 [2020-12-22 15:07:03,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 15:07:03,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23297 states. [2020-12-22 15:07:05,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23297 to 23297. [2020-12-22 15:07:05,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23297 states. [2020-12-22 15:07:05,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23297 states to 23297 states and 32157 transitions. [2020-12-22 15:07:05,698 INFO L78 Accepts]: Start accepts. Automaton has 23297 states and 32157 transitions. Word has length 148 [2020-12-22 15:07:05,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:07:05,698 INFO L481 AbstractCegarLoop]: Abstraction has 23297 states and 32157 transitions. [2020-12-22 15:07:05,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 15:07:05,698 INFO L276 IsEmpty]: Start isEmpty. Operand 23297 states and 32157 transitions. [2020-12-22 15:07:05,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-12-22 15:07:05,712 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:07:05,712 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:07:05,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-22 15:07:05,926 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ppp_mp_explodeErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr1ASSERT_VIOLATIONERROR_FUNCTION, ppp_send_frameErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:07:05,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:07:05,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1451343356, now seen corresponding path program 2 times [2020-12-22 15:07:05,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:07:05,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600310521] [2020-12-22 15:07:05,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:07:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:07:06,713 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-12-22 15:07:06,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600310521] [2020-12-22 15:07:06,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501794611] [2020-12-22 15:07:06,714 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true