/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:11:45,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:11:45,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:11:45,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:11:45,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:11:45,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:11:45,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:11:45,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:11:45,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:11:45,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:11:45,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:11:45,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:11:45,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:11:45,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:11:45,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:11:45,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:11:45,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:11:45,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:11:45,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:11:45,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:11:45,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:11:45,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:11:45,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:11:45,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:11:45,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:11:45,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:11:45,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:11:45,315 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:11:45,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:11:45,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:11:45,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:11:45,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:11:45,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:11:45,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:11:45,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:11:45,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:11:45,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:11:45,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:11:45,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:11:45,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:11:45,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:11:45,328 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-09-24 21:11:45,369 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:11:45,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:11:45,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:11:45,372 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:11:45,372 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:11:45,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:11:45,373 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:11:45,373 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:11:45,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:11:45,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:11:45,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:11:45,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:11:45,375 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:11:45,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:11:45,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:11:45,376 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:11:45,376 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:11:45,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:11:45,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:11:45,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:11:45,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:11:45,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:11:45,377 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:11:45,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:11:45,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:11:45,378 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:11:45,378 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 21:11:45,378 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 21:11:45,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:11:45,893 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:11:45,898 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:11:45,900 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:11:45,901 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:11:45,902 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-24 21:11:45,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d890351f3/f0cf46713bb74f5e8c909c56b4a64348/FLAG838ce593e [2020-09-24 21:11:46,802 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:11:46,803 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-24 21:11:46,838 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d890351f3/f0cf46713bb74f5e8c909c56b4a64348/FLAG838ce593e [2020-09-24 21:11:47,321 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d890351f3/f0cf46713bb74f5e8c909c56b4a64348 [2020-09-24 21:11:47,336 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:11:47,343 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:11:47,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:11:47,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:11:47,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:11:47,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:11:47" (1/1) ... [2020-09-24 21:11:47,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27933f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:47, skipping insertion in model container [2020-09-24 21:11:47,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:11:47" (1/1) ... [2020-09-24 21:11:47,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:11:47,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:11:49,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:11:49,088 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:11:49,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:11:49,388 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:11:49,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:49 WrapperNode [2020-09-24 21:11:49,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:11:49,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:11:49,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:11:49,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:11:49,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:49" (1/1) ... [2020-09-24 21:11:49,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:49" (1/1) ... [2020-09-24 21:11:49,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:49" (1/1) ... [2020-09-24 21:11:49,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:49" (1/1) ... [2020-09-24 21:11:49,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:49" (1/1) ... [2020-09-24 21:11:49,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:49" (1/1) ... [2020-09-24 21:11:49,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:49" (1/1) ... [2020-09-24 21:11:49,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:11:49,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:11:49,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:11:49,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:11:49,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-24 21:11:49,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:11:49,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:11:49,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-24 21:11:49,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-24 21:11:49,714 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-09-24 21:11:49,714 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-24 21:11:49,714 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-24 21:11:49,715 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-24 21:11:49,715 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_shared [2020-09-24 21:11:49,715 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_share_check [2020-09-24 21:11:49,715 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-24 21:11:49,716 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-09-24 21:11:49,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_cow [2020-09-24 21:11:49,716 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow [2020-09-24 21:11:49,716 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 21:11:49,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2020-09-24 21:11:49,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 21:11:49,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 21:11:49,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 21:11:49,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 21:11:49,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 21:11:49,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 21:11:49,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 21:11:49,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 21:11:49,718 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-24 21:11:49,718 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-24 21:11:49,718 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_off [2020-09-24 21:11:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2020-09-24 21:11:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_type_trans [2020-09-24 21:11:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connect_disconnect [2020-09-24 21:11:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connected [2020-09-24 21:11:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_disconnected [2020-09-24 21:11:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_indication [2020-09-24 21:11:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_transmit [2020-09-24 21:11:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_xmit [2020-09-24 21:11:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_open [2020-09-24 21:11:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_close [2020-09-24 21:11:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_rx [2020-09-24 21:11:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_ioctl [2020-09-24 21:11:49,721 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_init [2020-09-24 21:11:49,721 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_exit [2020-09-24 21:11:49,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_hdlc_proto_1 [2020-09-24 21:11:49,721 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:11:49,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-24 21:11:49,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-24 21:11:49,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-24 21:11:49,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-24 21:11:49,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-24 21:11:49,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2020-09-24 21:11:49,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-09-24 21:11:49,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_14 [2020-09-24 21:11:49,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-24 21:11:49,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-24 21:11:49,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-24 21:11:49,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-24 21:11:49,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-24 21:11:49,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-24 21:11:49,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-24 21:11:49,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-24 21:11:49,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-24 21:11:49,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-24 21:11:49,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 21:11:49,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-24 21:11:49,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-24 21:11:49,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-24 21:11:49,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-24 21:11:49,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-24 21:11:49,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 21:11:49,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-24 21:11:49,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2020-09-24 21:11:49,726 INFO L138 BoogieDeclarations]: Found implementation of procedure attach_hdlc_protocol [2020-09-24 21:11:49,726 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2020-09-24 21:11:49,726 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_connect_request [2020-09-24 21:11:49,726 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_received [2020-09-24 21:11:49,726 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_request [2020-09-24 21:11:49,726 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_disconnect_request [2020-09-24 21:11:49,727 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_register [2020-09-24 21:11:49,727 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_unregister [2020-09-24 21:11:49,727 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2020-09-24 21:11:49,727 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-09-24 21:11:49,727 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2020-09-24 21:11:49,727 INFO L138 BoogieDeclarations]: Found implementation of procedure register_hdlc_protocol [2020-09-24 21:11:49,728 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-24 21:11:49,728 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-24 21:11:49,728 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-24 21:11:49,728 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-24 21:11:49,728 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hdlc_protocol [2020-09-24 21:11:49,728 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 21:11:49,729 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 21:11:49,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:11:49,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 21:11:49,729 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-09-24 21:11:49,729 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2020-09-24 21:11:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-24 21:11:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:11:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2020-09-24 21:11:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-24 21:11:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-24 21:11:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-24 21:11:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-24 21:11:49,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-24 21:11:49,731 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-24 21:11:49,731 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2020-09-24 21:11:49,731 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-24 21:11:49,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:11:49,731 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-24 21:11:49,731 INFO L130 BoogieDeclarations]: Found specification of procedure skb_shared [2020-09-24 21:11:49,732 INFO L130 BoogieDeclarations]: Found specification of procedure skb_share_check [2020-09-24 21:11:49,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:11:49,732 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-24 21:11:49,732 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-24 21:11:49,732 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-24 21:11:49,732 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-24 21:11:49,733 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-09-24 21:11:49,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:11:49,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2020-09-24 21:11:49,733 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_cow [2020-09-24 21:11:49,733 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow [2020-09-24 21:11:49,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-24 21:11:49,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-24 21:11:49,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-24 21:11:49,734 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:11:49,734 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 21:11:49,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:11:49,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 21:11:49,734 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:11:49,735 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 21:11:49,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2020-09-24 21:11:49,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:11:49,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 21:11:49,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 21:11:49,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 21:11:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 21:11:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 21:11:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 21:11:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 21:11:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 21:11:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_hdlc_proto_1 [2020-09-24 21:11:49,737 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-24 21:11:49,737 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-24 21:11:49,737 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-24 21:11:49,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-09-24 21:11:49,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_14 [2020-09-24 21:11:49,737 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2020-09-24 21:11:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_off [2020-09-24 21:11:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-09-24 21:11:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure register_hdlc_protocol [2020-09-24 21:11:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hdlc_protocol [2020-09-24 21:11:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2020-09-24 21:11:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure attach_hdlc_protocol [2020-09-24 21:11:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_register [2020-09-24 21:11:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_unregister [2020-09-24 21:11:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_connect_request [2020-09-24 21:11:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_disconnect_request [2020-09-24 21:11:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_request [2020-09-24 21:11:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_received [2020-09-24 21:11:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure x25_type_trans [2020-09-24 21:11:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:11:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure x25_ioctl [2020-09-24 21:11:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connect_disconnect [2020-09-24 21:11:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connected [2020-09-24 21:11:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure x25_disconnected [2020-09-24 21:11:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_indication [2020-09-24 21:11:49,741 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_transmit [2020-09-24 21:11:49,741 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-24 21:11:49,741 INFO L130 BoogieDeclarations]: Found specification of procedure x25_xmit [2020-09-24 21:11:49,741 INFO L130 BoogieDeclarations]: Found specification of procedure x25_open [2020-09-24 21:11:49,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:11:49,741 INFO L130 BoogieDeclarations]: Found specification of procedure x25_close [2020-09-24 21:11:49,741 INFO L130 BoogieDeclarations]: Found specification of procedure x25_rx [2020-09-24 21:11:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-24 21:11:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure mod_init [2020-09-24 21:11:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure mod_exit [2020-09-24 21:11:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 21:11:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 21:11:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:11:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-24 21:11:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-24 21:11:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-24 21:11:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-24 21:11:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-24 21:11:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-24 21:11:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-24 21:11:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-24 21:11:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-24 21:11:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-24 21:11:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-24 21:11:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-24 21:11:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 21:11:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:11:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 21:11:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:11:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 21:11:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:11:50,305 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 21:11:51,307 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:11:51,308 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-24 21:11:51,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:11:51 BoogieIcfgContainer [2020-09-24 21:11:51,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:11:51,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:11:51,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:11:51,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:11:51,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:11:47" (1/3) ... [2020-09-24 21:11:51,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ae281d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:11:51, skipping insertion in model container [2020-09-24 21:11:51,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:49" (2/3) ... [2020-09-24 21:11:51,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ae281d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:11:51, skipping insertion in model container [2020-09-24 21:11:51,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:11:51" (3/3) ... [2020-09-24 21:11:51,329 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-24 21:11:51,343 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:11:51,355 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:11:51,379 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:11:51,415 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:11:51,415 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:11:51,415 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:11:51,416 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:11:51,416 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:11:51,416 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:11:51,416 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:11:51,416 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:11:51,456 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states. [2020-09-24 21:11:51,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-24 21:11:51,472 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:11:51,474 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:11:51,474 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:11:51,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:11:51,483 INFO L82 PathProgramCache]: Analyzing trace with hash 2033327711, now seen corresponding path program 1 times [2020-09-24 21:11:51,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:11:51,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [105118597] [2020-09-24 21:11:51,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:11:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:52,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:52,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:53,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:53,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 21:11:53,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:11:53,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1550 [2020-09-24 21:11:53,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:53,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:11:53,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 21:11:53,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-24 21:11:53,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:11:53,786 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-24 21:11:53,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:11:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:53,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:53,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:53,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 21:11:53,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:53,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-24 21:11:53,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:53,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:53,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:53,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:53,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:11:53,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 21:11:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:53,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:54,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:54,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 21:11:54,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:54,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 21:11:54,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:54,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:54,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:54,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:54,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:54,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:11:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:54,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:54,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:54,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:11:54,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:54,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 21:11:54,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:54,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:54,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:54,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:54,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:11:54,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 21:11:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:54,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:54,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:54,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:11:54,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:54,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 21:11:54,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:54,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:54,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:54,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:54,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:54,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 21:11:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:54,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:54,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:54,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 21:11:54,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:54,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 21:11:54,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:54,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:54,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:54,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:11:54,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:54,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:11:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:54,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:54,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:54,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:11:54,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:54,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 21:11:54,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:54,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:54,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:54,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:11:54,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:54,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 21:11:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:54,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:54,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:54,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:11:54,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:54,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 21:11:54,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:54,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:54,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:54,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 21:11:54,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:54,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:11:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:54,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:54,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:54,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:11:54,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:54,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 21:11:54,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:54,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:54,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:54,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:54,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:54,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 21:11:54,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:54,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:54,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:54,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:11:54,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:54,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-24 21:11:54,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:54,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:11:54,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:54,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:11:54,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:54,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:11:54,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [105118597] [2020-09-24 21:11:54,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:11:54,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:11:54,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81261944] [2020-09-24 21:11:54,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:11:54,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:11:54,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:11:54,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:11:54,571 INFO L87 Difference]: Start difference. First operand 890 states. Second operand 10 states. [2020-09-24 21:11:54,717 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-24 21:11:55,222 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-09-24 21:11:56,481 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2020-09-24 21:11:56,696 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-24 21:11:56,918 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-24 21:11:57,108 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-24 21:11:59,835 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-09-24 21:12:05,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:12:05,253 INFO L93 Difference]: Finished difference Result 2288 states and 2752 transitions. [2020-09-24 21:12:05,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 21:12:05,256 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 106 [2020-09-24 21:12:05,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:12:05,291 INFO L225 Difference]: With dead ends: 2288 [2020-09-24 21:12:05,291 INFO L226 Difference]: Without dead ends: 1575 [2020-09-24 21:12:05,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2020-09-24 21:12:05,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2020-09-24 21:12:05,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1379. [2020-09-24 21:12:05,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2020-09-24 21:12:05,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1561 transitions. [2020-09-24 21:12:05,552 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1561 transitions. Word has length 106 [2020-09-24 21:12:05,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:12:05,554 INFO L479 AbstractCegarLoop]: Abstraction has 1379 states and 1561 transitions. [2020-09-24 21:12:05,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:12:05,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1561 transitions. [2020-09-24 21:12:05,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 21:12:05,564 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:12:05,565 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:12:05,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:12:05,565 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:12:05,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:12:05,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1002477034, now seen corresponding path program 1 times [2020-09-24 21:12:05,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:12:05,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1598496860] [2020-09-24 21:12:05,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:12:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:05,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:05,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:05,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:07,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:07,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:10,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:10,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-24 21:12:10,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:12:10,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-24 21:12:10,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:10,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:12:10,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 21:12:10,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 21:12:10,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:12:10,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:12:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:10,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:11,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:11,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 21:12:11,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:11,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 21:12:11,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:12:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 21:12:11,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:11,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 21:12:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:11,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:11,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:11,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 21:12:11,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:11,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 21:12:11,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:11,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:12:11,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:11,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 21:12:11,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:11,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:12:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:11,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:11,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:11,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:12:11,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:11,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 21:12:11,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:11,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:12:11,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:11,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:12:11,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:11,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 21:12:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:11,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:11,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:11,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:12:11,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:11,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 21:12:11,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:11,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:12:11,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:11,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:12:11,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:11,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 21:12:11,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:11,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:11,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:11,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 21:12:11,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:11,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 21:12:11,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:11,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:12:11,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:11,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 21:12:11,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:11,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:12:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:11,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:11,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:11,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:12:11,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:11,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 21:12:11,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:11,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:12:11,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:11,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:12:11,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:11,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:12:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:11,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:11,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:11,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:11,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-24 21:12:11,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:12:11,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-09-24 21:12:11,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:11,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:12:11,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:12:11,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 21:12:11,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:12,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:12:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:12,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:12,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:12,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:12:12,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:12,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 21:12:12,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:12,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:12:12,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:12,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:12:12,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:12:12,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 21:12:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:12,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:12,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:12,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:12:12,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:12,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 21:12:12,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:12,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:12:12,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:12,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:12:12,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:12,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:12:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:12,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:12,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:12,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:12,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:12:12,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:12:12,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-24 21:12:12,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:12,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:12:12,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:12,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 21:12:12,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:12:12,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:12:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:12,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:12,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:12,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:12,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:12:12,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:12:12,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-24 21:12:12,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:12,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:12:12,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 21:12:12,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:12:12,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:12:12,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 21:12:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:12,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:12,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:12,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:12:12,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:12,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 21:12:12,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:12,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:12:12,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:12:12,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:12:12,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:12:12,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:12:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:12,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:12,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:12,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:12:12,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:12,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 21:12:12,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:12,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:12:12,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:12,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:12:12,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:12:12,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 21:12:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:12,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:12,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:12,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:12:12,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:12,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 21:12:12,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:12,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:12:12,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 21:12:12,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:12:12,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:12:12,793 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 21:12:12,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1598496860] [2020-09-24 21:12:12,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:12:12,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 21:12:12,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226224090] [2020-09-24 21:12:12,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 21:12:12,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:12:12,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 21:12:12,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-09-24 21:12:12,799 INFO L87 Difference]: Start difference. First operand 1379 states and 1561 transitions. Second operand 14 states. [2020-09-24 21:12:15,926 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-24 21:12:16,695 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-09-24 21:12:18,077 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-09-24 21:12:18,349 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-09-24 21:12:18,514 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-24 21:12:18,733 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-09-24 21:12:20,188 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-24 21:12:23,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:12:23,002 INFO L93 Difference]: Finished difference Result 4375 states and 5195 transitions. [2020-09-24 21:12:23,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-09-24 21:12:23,003 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 171 [2020-09-24 21:12:23,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:12:23,027 INFO L225 Difference]: With dead ends: 4375 [2020-09-24 21:12:23,027 INFO L226 Difference]: Without dead ends: 2582 [2020-09-24 21:12:23,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=356, Invalid=1366, Unknown=0, NotChecked=0, Total=1722 [2020-09-24 21:12:23,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2582 states. [2020-09-24 21:12:23,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2582 to 2243. [2020-09-24 21:12:23,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2243 states. [2020-09-24 21:12:23,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 2534 transitions. [2020-09-24 21:12:23,209 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 2534 transitions. Word has length 171 [2020-09-24 21:12:23,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:12:23,210 INFO L479 AbstractCegarLoop]: Abstraction has 2243 states and 2534 transitions. [2020-09-24 21:12:23,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 21:12:23,210 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 2534 transitions. [2020-09-24 21:12:23,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-09-24 21:12:23,218 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:12:23,218 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:12:23,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:12:23,219 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:12:23,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:12:23,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1924013427, now seen corresponding path program 1 times [2020-09-24 21:12:23,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:12:23,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [791287704] [2020-09-24 21:12:23,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:12:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:23,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:23,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:23,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:25,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:25,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:28,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:28,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-24 21:12:28,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:12:28,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 21:12:28,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:28,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:12:28,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 21:12:28,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-24 21:12:28,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:28,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:12:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:28,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:28,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:28,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 21:12:28,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:28,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 21:12:28,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:28,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:12:28,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:28,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:12:28,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:12:28,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 21:12:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:28,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:28,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:28,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 21:12:28,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:28,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 21:12:28,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:28,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:12:28,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:28,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:12:28,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:28,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:12:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:28,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:28,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:28,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:12:28,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:28,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 21:12:28,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:28,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:12:28,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:28,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:12:28,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:28,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 21:12:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:28,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:28,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:28,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:12:28,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:28,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 21:12:28,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:28,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:12:28,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:28,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:12:28,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:28,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 21:12:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:28,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:28,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:28,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 21:12:28,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:28,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 21:12:28,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:28,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:12:28,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:28,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:12:28,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:28,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:12:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:28,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:28,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:28,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:12:28,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:28,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 21:12:28,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:28,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:12:28,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:28,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:12:28,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:28,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-09-24 21:12:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:28,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:29,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:29,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:33,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:33,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 21:12:33,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:12:33,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-24 21:12:33,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:33,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:12:33,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:12:33,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 21:12:33,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:33,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 21:12:33,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:34,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:34,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:34,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking...