/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 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 17:50:57,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:50:57,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:50:57,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:50:57,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:50:57,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:50:57,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:50:57,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:50:57,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:50:57,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:50:57,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:50:57,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:50:57,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:50:57,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:50:57,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:50:57,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:50:57,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:50:57,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:50:57,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:50:57,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:50:57,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:50:57,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:50:57,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:50:57,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:50:57,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:50:57,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:50:57,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:50:57,594 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:50:57,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:50:57,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:50:57,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:50:57,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:50:57,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:50:57,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:50:57,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:50:57,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:50:57,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:50:57,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:50:57,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:50:57,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:50:57,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:50:57,603 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 17:50:57,628 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:50:57,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:50:57,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:50:57,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:50:57,630 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:50:57,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:50:57,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:50:57,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:50:57,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:50:57,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:50:57,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:50:57,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:50:57,632 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:50:57,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:50:57,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:50:57,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:50:57,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:50:57,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:50:57,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:50:57,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:50:57,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:50:57,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:50:57,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:50:57,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:50:57,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:50:57,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:50:57,635 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 17:50:57,635 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;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;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;log-additional-information=true; [2020-09-24 17:50:58,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:50:58,155 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:50:58,160 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:50:58,161 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:50:58,162 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:50:58,163 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-24 17:50:58,257 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/889c311c4/fd59776b26bb4f6ab2cdd9e461cfa332/FLAG1f291e066 [2020-09-24 17:50:59,063 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:50:59,064 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-24 17:50:59,113 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/889c311c4/fd59776b26bb4f6ab2cdd9e461cfa332/FLAG1f291e066 [2020-09-24 17:50:59,638 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/889c311c4/fd59776b26bb4f6ab2cdd9e461cfa332 [2020-09-24 17:50:59,652 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:50:59,656 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:50:59,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:50:59,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:50:59,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:50:59,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:50:59" (1/1) ... [2020-09-24 17:50:59,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ab6a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:50:59, skipping insertion in model container [2020-09-24 17:50:59,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:50:59" (1/1) ... [2020-09-24 17:50:59,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:50:59,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:51:01,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:51:01,502 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:51:01,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:51:01,893 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:51:01,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:01 WrapperNode [2020-09-24 17:51:01,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:51:01,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:51:01,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:51:01,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:51:01,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:01" (1/1) ... [2020-09-24 17:51:01,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:01" (1/1) ... [2020-09-24 17:51:01,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:01" (1/1) ... [2020-09-24 17:51:01,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:01" (1/1) ... [2020-09-24 17:51:02,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:01" (1/1) ... [2020-09-24 17:51:02,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:01" (1/1) ... [2020-09-24 17:51:02,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:01" (1/1) ... [2020-09-24 17:51:02,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:51:02,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:51:02,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:51:02,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:51:02,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:01" (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 17:51:02,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:51:02,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:51:02,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-24 17:51:02,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-24 17:51:02,178 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-09-24 17:51:02,178 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-24 17:51:02,178 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-24 17:51:02,178 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-24 17:51:02,179 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_shared [2020-09-24 17:51:02,179 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_share_check [2020-09-24 17:51:02,179 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-24 17:51:02,180 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-09-24 17:51:02,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_cow [2020-09-24 17:51:02,180 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow [2020-09-24 17:51:02,180 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 17:51:02,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2020-09-24 17:51:02,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 17:51:02,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 17:51:02,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 17:51:02,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 17:51:02,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 17:51:02,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 17:51:02,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 17:51:02,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 17:51:02,183 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-24 17:51:02,183 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-24 17:51:02,183 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_off [2020-09-24 17:51:02,183 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2020-09-24 17:51:02,183 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_type_trans [2020-09-24 17:51:02,184 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connect_disconnect [2020-09-24 17:51:02,184 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connected [2020-09-24 17:51:02,184 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_disconnected [2020-09-24 17:51:02,184 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_indication [2020-09-24 17:51:02,184 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_transmit [2020-09-24 17:51:02,184 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_xmit [2020-09-24 17:51:02,185 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_open [2020-09-24 17:51:02,185 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_close [2020-09-24 17:51:02,185 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_rx [2020-09-24 17:51:02,185 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_ioctl [2020-09-24 17:51:02,185 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_init [2020-09-24 17:51:02,186 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_exit [2020-09-24 17:51:02,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_hdlc_proto_1 [2020-09-24 17:51:02,186 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:51:02,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-24 17:51:02,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-24 17:51:02,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-24 17:51:02,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-24 17:51:02,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-24 17:51:02,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2020-09-24 17:51:02,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-09-24 17:51:02,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_14 [2020-09-24 17:51:02,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-24 17:51:02,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-24 17:51:02,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-24 17:51:02,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-24 17:51:02,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-24 17:51:02,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-24 17:51:02,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-24 17:51:02,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-24 17:51:02,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-24 17:51:02,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-24 17:51:02,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 17:51:02,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-24 17:51:02,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-24 17:51:02,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-24 17:51:02,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-24 17:51:02,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-24 17:51:02,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 17:51:02,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-24 17:51:02,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2020-09-24 17:51:02,192 INFO L138 BoogieDeclarations]: Found implementation of procedure attach_hdlc_protocol [2020-09-24 17:51:02,192 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2020-09-24 17:51:02,192 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_connect_request [2020-09-24 17:51:02,192 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_received [2020-09-24 17:51:02,192 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_request [2020-09-24 17:51:02,192 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_disconnect_request [2020-09-24 17:51:02,193 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_register [2020-09-24 17:51:02,193 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_unregister [2020-09-24 17:51:02,193 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2020-09-24 17:51:02,193 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-09-24 17:51:02,193 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2020-09-24 17:51:02,194 INFO L138 BoogieDeclarations]: Found implementation of procedure register_hdlc_protocol [2020-09-24 17:51:02,194 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-24 17:51:02,194 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-24 17:51:02,194 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-24 17:51:02,194 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-24 17:51:02,195 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hdlc_protocol [2020-09-24 17:51:02,195 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 17:51:02,195 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 17:51:02,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:51:02,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 17:51:02,196 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-09-24 17:51:02,196 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2020-09-24 17:51:02,196 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-24 17:51:02,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:51:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2020-09-24 17:51:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-24 17:51:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-24 17:51:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-24 17:51:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-24 17:51:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-24 17:51:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-24 17:51:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2020-09-24 17:51:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-24 17:51:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:51:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-24 17:51:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure skb_shared [2020-09-24 17:51:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure skb_share_check [2020-09-24 17:51:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:51:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-24 17:51:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-24 17:51:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-24 17:51:02,200 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-24 17:51:02,200 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-09-24 17:51:02,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:51:02,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2020-09-24 17:51:02,200 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_cow [2020-09-24 17:51:02,200 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow [2020-09-24 17:51:02,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-24 17:51:02,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-24 17:51:02,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-24 17:51:02,201 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:51:02,201 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 17:51:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:51:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 17:51:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 17:51:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 17:51:02,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2020-09-24 17:51:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:51:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 17:51:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 17:51:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 17:51:02,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 17:51:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 17:51:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 17:51:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 17:51:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 17:51:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_hdlc_proto_1 [2020-09-24 17:51:02,204 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-24 17:51:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-24 17:51:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-24 17:51:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-09-24 17:51:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_14 [2020-09-24 17:51:02,205 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2020-09-24 17:51:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_off [2020-09-24 17:51:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-09-24 17:51:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure register_hdlc_protocol [2020-09-24 17:51:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hdlc_protocol [2020-09-24 17:51:02,206 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2020-09-24 17:51:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure attach_hdlc_protocol [2020-09-24 17:51:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_register [2020-09-24 17:51:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_unregister [2020-09-24 17:51:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_connect_request [2020-09-24 17:51:02,207 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_disconnect_request [2020-09-24 17:51:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_request [2020-09-24 17:51:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_received [2020-09-24 17:51:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure x25_type_trans [2020-09-24 17:51:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:51:02,208 INFO L130 BoogieDeclarations]: Found specification of procedure x25_ioctl [2020-09-24 17:51:02,209 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connect_disconnect [2020-09-24 17:51:02,209 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connected [2020-09-24 17:51:02,209 INFO L130 BoogieDeclarations]: Found specification of procedure x25_disconnected [2020-09-24 17:51:02,209 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_indication [2020-09-24 17:51:02,209 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_transmit [2020-09-24 17:51:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-24 17:51:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure x25_xmit [2020-09-24 17:51:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure x25_open [2020-09-24 17:51:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:51:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure x25_close [2020-09-24 17:51:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure x25_rx [2020-09-24 17:51:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-24 17:51:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure mod_init [2020-09-24 17:51:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure mod_exit [2020-09-24 17:51:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 17:51:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 17:51:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:51:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-24 17:51:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-24 17:51:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-24 17:51:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-24 17:51:02,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-24 17:51:02,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-24 17:51:02,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-24 17:51:02,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-24 17:51:02,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-24 17:51:02,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-24 17:51:02,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-24 17:51:02,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-24 17:51:02,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 17:51:02,214 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:51:02,214 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 17:51:02,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:51:02,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 17:51:02,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:51:02,938 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 17:51:04,109 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:51:04,109 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-24 17:51:04,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:51:04 BoogieIcfgContainer [2020-09-24 17:51:04,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:51:04,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:51:04,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:51:04,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:51:04,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:50:59" (1/3) ... [2020-09-24 17:51:04,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ffa588c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:51:04, skipping insertion in model container [2020-09-24 17:51:04,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:01" (2/3) ... [2020-09-24 17:51:04,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ffa588c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:51:04, skipping insertion in model container [2020-09-24 17:51:04,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:51:04" (3/3) ... [2020-09-24 17:51:04,129 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 17:51:04,141 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:51:04,152 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:51:04,175 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:51:04,209 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:51:04,210 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:51:04,210 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:51:04,210 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:51:04,210 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:51:04,210 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:51:04,211 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:51:04,211 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:51:04,249 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states. [2020-09-24 17:51:04,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-24 17:51:04,266 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:51:04,267 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 17:51:04,268 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:51:04,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:51:04,275 INFO L82 PathProgramCache]: Analyzing trace with hash 2033327711, now seen corresponding path program 1 times [2020-09-24 17:51:04,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:51:04,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2068055133] [2020-09-24 17:51:04,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:51:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:04,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:05,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:05,930 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:05,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 17:51:05,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:51:05,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1261 [2020-09-24 17:51:05,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:05,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:05,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-24 17:51:05,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 17:51:05,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:51:06,290 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-24 17:51:06,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:06,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:06,419 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:06,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 17:51:06,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:06,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 17:51:06,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:06,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:06,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:06,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:06,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:06,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 17:51:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:06,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:06,530 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:06,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 17:51:06,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:06,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 17:51:06,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:06,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:06,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:06,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:06,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:06,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:51:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:06,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:06,586 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:06,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:51:06,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:06,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 17:51:06,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:06,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:06,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:06,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:06,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:06,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 17:51:06,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:06,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:06,629 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:06,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:06,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:06,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 17:51:06,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:06,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:06,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:06,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:06,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:06,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 17:51:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:06,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:06,682 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:06,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 17:51:06,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:06,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 17:51:06,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:06,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:06,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:06,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:06,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:06,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:06,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:06,722 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:06,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:51:06,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:06,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 17:51:06,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:06,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:06,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:06,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:06,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:06,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 17:51:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:06,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:06,765 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:06,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 17:51:06,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:06,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 17:51:06,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:06,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:06,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 17:51:06,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:06,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:06,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:06,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:06,788 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:06,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:51:06,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:06,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 17:51:06,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:06,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:06,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:06,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:06,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:06,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 17:51:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:06,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:06,829 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:06,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:06,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:06,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 17:51:06,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:06,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:06,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 17:51:06,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:06,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:06,856 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 17:51:06,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2068055133] [2020-09-24 17:51:06,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:51:06,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 17:51:06,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983236243] [2020-09-24 17:51:06,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 17:51:06,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:51:06,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 17:51:06,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:51:06,888 INFO L87 Difference]: Start difference. First operand 890 states. Second operand 7 states. [2020-09-24 17:51:07,031 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-24 17:51:07,562 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-09-24 17:51:13,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:51:13,396 INFO L93 Difference]: Finished difference Result 2373 states and 2824 transitions. [2020-09-24 17:51:13,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 17:51:13,398 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 106 [2020-09-24 17:51:13,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:51:13,440 INFO L225 Difference]: With dead ends: 2373 [2020-09-24 17:51:13,440 INFO L226 Difference]: Without dead ends: 1687 [2020-09-24 17:51:13,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-09-24 17:51:13,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2020-09-24 17:51:13,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1286. [2020-09-24 17:51:13,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1286 states. [2020-09-24 17:51:13,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1428 transitions. [2020-09-24 17:51:13,716 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1428 transitions. Word has length 106 [2020-09-24 17:51:13,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:51:13,717 INFO L479 AbstractCegarLoop]: Abstraction has 1286 states and 1428 transitions. [2020-09-24 17:51:13,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 17:51:13,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1428 transitions. [2020-09-24 17:51:13,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-24 17:51:13,723 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:51:13,731 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:51:13,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:51:13,732 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:51:13,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:51:13,736 INFO L82 PathProgramCache]: Analyzing trace with hash 594820322, now seen corresponding path program 1 times [2020-09-24 17:51:13,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:51:13,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [449365724] [2020-09-24 17:51:13,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:51:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:13,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:13,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:14,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:15,988 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:15,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 17:51:15,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:51:15,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2184 [2020-09-24 17:51:15,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:15,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:51:15,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-09-24 17:51:15,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:51:15,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 17:51:16,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:16,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:16,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:16,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 17:51:16,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:16,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 17:51:16,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:16,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:16,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:16,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:16,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:16,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 17:51:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:16,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:16,311 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:16,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 17:51:16,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:16,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 17:51:16,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:16,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:16,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:16,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:16,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:51:16,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:51:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:16,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:16,359 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:16,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:51:16,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:16,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 17:51:16,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:16,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:16,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:16,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:16,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:51:16,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 17:51:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:16,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:16,403 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:16,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:16,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:16,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 17:51:16,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:16,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:16,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:16,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:16,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:51:16,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 17:51:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:16,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:16,461 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:16,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 17:51:16,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:16,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 17:51:16,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:16,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:16,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:16,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:16,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:16,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:16,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:16,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:16,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:51:16,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:16,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 17:51:16,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:16,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:16,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:16,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:16,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:16,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:51:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:16,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:16,571 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:16,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 17:51:16,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:16,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 17:51:16,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:16,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 17:51:16,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:16,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 17:51:16,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:16,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:16,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:16,615 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:16,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:51:16,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:16,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 17:51:16,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:16,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:16,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:16,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:16,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:16,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-24 17:51:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:16,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:16,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:16,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:16,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:16,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 17:51:16,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:16,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:16,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 17:51:16,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:16,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:16,676 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 17:51:16,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [449365724] [2020-09-24 17:51:16,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:51:16,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 17:51:16,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648959593] [2020-09-24 17:51:16,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 17:51:16,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:51:16,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 17:51:16,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:51:16,680 INFO L87 Difference]: Start difference. First operand 1286 states and 1428 transitions. Second operand 9 states. [2020-09-24 17:51:17,615 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-09-24 17:51:21,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:51:21,035 INFO L93 Difference]: Finished difference Result 2914 states and 3316 transitions. [2020-09-24 17:51:21,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 17:51:21,036 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 114 [2020-09-24 17:51:21,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:51:21,046 INFO L225 Difference]: With dead ends: 2914 [2020-09-24 17:51:21,046 INFO L226 Difference]: Without dead ends: 1684 [2020-09-24 17:51:21,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 17:51:21,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2020-09-24 17:51:21,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1284. [2020-09-24 17:51:21,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1284 states. [2020-09-24 17:51:21,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 1423 transitions. [2020-09-24 17:51:21,170 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 1423 transitions. Word has length 114 [2020-09-24 17:51:21,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:51:21,172 INFO L479 AbstractCegarLoop]: Abstraction has 1284 states and 1423 transitions. [2020-09-24 17:51:21,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 17:51:21,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 1423 transitions. [2020-09-24 17:51:21,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-24 17:51:21,179 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:51:21,180 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:51:21,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:51:21,180 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:51:21,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:51:21,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1356551308, now seen corresponding path program 1 times [2020-09-24 17:51:21,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:51:21,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832037831] [2020-09-24 17:51:21,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:51:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:21,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:22,112 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:22,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-09-24 17:51:22,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:22,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 818 [2020-09-24 17:51:22,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:22,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:51:22,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 17:51:22,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 17:51:22,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:22,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:22,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:22,512 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:22,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 17:51:22,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:22,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 17:51:22,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:22,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:22,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:22,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:22,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:22,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 17:51:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:22,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:22,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:22,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 17:51:22,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:22,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 17:51:22,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:22,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:22,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:22,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:22,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:51:22,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:51:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:22,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:22,649 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:22,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:51:22,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:22,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 17:51:22,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:22,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:22,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:22,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:22,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:22,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 17:51:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:22,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:22,687 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:22,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:22,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:22,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 17:51:22,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:22,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:22,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:22,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:22,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:51:22,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 17:51:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:22,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:22,754 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:22,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 17:51:22,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:22,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 17:51:22,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:22,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:22,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:22,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:51:22,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:22,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:22,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:22,809 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:22,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:51:22,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:22,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 17:51:22,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:22,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:22,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:22,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:51:22,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:22,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:51:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:22,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:22,868 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:22,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 17:51:22,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:22,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 17:51:22,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:22,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:22,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:22,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 17:51:22,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:22,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:22,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:22,894 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:22,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:51:22,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:22,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 17:51:22,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:22,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:22,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:22,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:22,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:22,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-24 17:51:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:22,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:23,074 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:23,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 17:51:23,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:23,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-24 17:51:23,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:23,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:23,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:23,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 17:51:23,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:23,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:51:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:23,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:23,140 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:23,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 17:51:23,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:23,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 17:51:23,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:23,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:23,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:23,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:23,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:23,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:51:23,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:23,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:23,177 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:23,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:51:23,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:23,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 17:51:23,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:23,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:23,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:23,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:23,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:23,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 17:51:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:23,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:23,212 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:23,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:23,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:23,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 17:51:23,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:23,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:23,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:23,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:23,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:23,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-24 17:51:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:23,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:23,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:23,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 17:51:23,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:23,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 17:51:23,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:23,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:23,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:23,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:23,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:23,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:51:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:23,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:23,300 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:23,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:51:23,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:23,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 17:51:23,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:23,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:23,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:23,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:23,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:23,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 17:51:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:23,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:23,346 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:23,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:23,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:23,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 17:51:23,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:23,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:23,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:23,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:23,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 17:51:23,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 17:51:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:23,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:23,412 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:23,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 17:51:23,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:23,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 17:51:23,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:23,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:23,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:23,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 17:51:23,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:23,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:23,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:23,438 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:23,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:51:23,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:23,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 17:51:23,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:23,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:23,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:23,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:23,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:23,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 17:51:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:23,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:23,510 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:23,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:23,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:23,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 17:51:23,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:23,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:51:23,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:23,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 17:51:23,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:23,605 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-09-24 17:51:23,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832037831] [2020-09-24 17:51:23,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:51:23,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 17:51:23,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449131830] [2020-09-24 17:51:23,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 17:51:23,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:51:23,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 17:51:23,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-24 17:51:23,608 INFO L87 Difference]: Start difference. First operand 1284 states and 1423 transitions. Second operand 11 states. [2020-09-24 17:51:24,078 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-09-24 17:51:29,857 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-09-24 17:51:29,999 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-24 17:51:30,136 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-24 17:51:30,267 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-24 17:51:30,471 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-24 17:51:33,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:51:33,475 INFO L93 Difference]: Finished difference Result 4277 states and 4961 transitions. [2020-09-24 17:51:33,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 17:51:33,476 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 180 [2020-09-24 17:51:33,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:51:33,502 INFO L225 Difference]: With dead ends: 4277 [2020-09-24 17:51:33,502 INFO L226 Difference]: Without dead ends: 3030 [2020-09-24 17:51:33,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2020-09-24 17:51:33,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2020-09-24 17:51:33,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2650. [2020-09-24 17:51:33,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2650 states. [2020-09-24 17:51:33,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 3001 transitions. [2020-09-24 17:51:33,759 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 3001 transitions. Word has length 180 [2020-09-24 17:51:33,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:51:33,761 INFO L479 AbstractCegarLoop]: Abstraction has 2650 states and 3001 transitions. [2020-09-24 17:51:33,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 17:51:33,761 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 3001 transitions. [2020-09-24 17:51:33,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-09-24 17:51:33,774 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:51:33,774 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:51:33,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:51:33,775 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:51:33,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:51:33,775 INFO L82 PathProgramCache]: Analyzing trace with hash -766964387, now seen corresponding path program 1 times [2020-09-24 17:51:33,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:51:33,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1446886163] [2020-09-24 17:51:33,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:51:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:33,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:34,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:34,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:35,570 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:35,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-09-24 17:51:35,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:51:35,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1712 [2020-09-24 17:51:35,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:35,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:35,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 121 [2020-09-24 17:51:35,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-24 17:51:35,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:51:35,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:35,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:35,817 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:35,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 17:51:35,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:35,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 17:51:35,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:35,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:35,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:35,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:35,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:51:35,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 17:51:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:35,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:35,919 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:35,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 17:51:35,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:35,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 17:51:35,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:35,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:35,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:35,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:51:35,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:51:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:35,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:35,965 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:35,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:51:35,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:35,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 17:51:35,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:35,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:35,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:35,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:35,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:51:35,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 17:51:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:35,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:36,003 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:36,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:36,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:36,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 17:51:36,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:36,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:36,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:36,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:36,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:36,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 17:51:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:36,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:36,047 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:36,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 17:51:36,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:36,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 17:51:36,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:36,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:36,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:36,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:36,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:36,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:36,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:36,084 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:36,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:51:36,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:36,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 17:51:36,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:36,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:36,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:51:36,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:36,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:36,121 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:36,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 17:51:36,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:36,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 17:51:36,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:36,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:36,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:36,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:36,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:36,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:36,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:36,148 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:36,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:51:36,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:36,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 17:51:36,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:36,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:36,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:36,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:36,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:36,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-24 17:51:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:36,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:36,328 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:36,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 17:51:36,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:36,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-24 17:51:36,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:36,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:36,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:36,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 17:51:36,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:51:36,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:51:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:36,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:36,500 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:36,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 17:51:36,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:36,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-24 17:51:36,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:36,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:36,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:36,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:36,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:36,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:51:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:36,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:36,535 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:36,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:51:36,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:36,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 17:51:36,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:36,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:36,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:36,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:36,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:36,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 17:51:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:36,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:36,568 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:36,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:36,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:36,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 17:51:36,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:36,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:36,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:36,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:36,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:36,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-24 17:51:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:36,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:36,614 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:36,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 17:51:36,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:36,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 17:51:36,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:36,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:36,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:36,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:36,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:36,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:51:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:36,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:36,650 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:36,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:51:36,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:36,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 17:51:36,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:36,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:36,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:36,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:36,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:36,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 17:51:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:36,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:36,684 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:36,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:36,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:36,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 17:51:36,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:36,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:36,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:36,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:36,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:36,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 17:51:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:36,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:36,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:36,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:36,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-24 17:51:36,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:51:36,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-09-24 17:51:36,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:36,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:36,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-24 17:51:36,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 17:51:36,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:51:36,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 17:51:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:36,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:36,944 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:36,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:36,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:36,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 17:51:36,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:36,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:36,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:36,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 17:51:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:36,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:36,984 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:36,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:36,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:36,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 17:51:36,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:36,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:36,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:36,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:36,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:51:37,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 17:51:37,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:37,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:37,088 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:37,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 17:51:37,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:37,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 17:51:37,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:37,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:37,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 17:51:37,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 17:51:37,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:51:37,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 17:51:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:37,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:37,153 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:37,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 17:51:37,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:37,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 17:51:37,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:37,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:37,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 17:51:37,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 17:51:37,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:37,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-09-24 17:51:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:37,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:37,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:37,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 17:51:37,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:37,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 17:51:37,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 17:51:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:37,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:37,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:51:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:37,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:37,247 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:37,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:51:37,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:37,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 17:51:37,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:37,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:37,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:51:37,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:37,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:37,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-24 17:51:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:37,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:37,286 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:37,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:51:37,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:51:37,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 17:51:37,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:37,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:51:37,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 17:51:37,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:51:37,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:51:37,369 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-09-24 17:51:37,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1446886163] [2020-09-24 17:51:37,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:51:37,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 17:51:37,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956691095] [2020-09-24 17:51:37,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 17:51:37,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:51:37,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 17:51:37,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-24 17:51:37,377 INFO L87 Difference]: Start difference. First operand 2650 states and 3001 transitions. Second operand 11 states. [2020-09-24 17:51:40,916 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-24 17:51:41,047 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-24 17:51:45,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:51:45,732 INFO L93 Difference]: Finished difference Result 8274 states and 9733 transitions. [2020-09-24 17:51:45,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 17:51:45,733 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 245 [2020-09-24 17:51:45,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:51:45,760 INFO L225 Difference]: With dead ends: 8274 [2020-09-24 17:51:45,761 INFO L226 Difference]: Without dead ends: 5680 [2020-09-24 17:51:45,771 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-09-24 17:51:45,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5680 states. [2020-09-24 17:51:46,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5680 to 4878. [2020-09-24 17:51:46,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4878 states. [2020-09-24 17:51:46,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4878 states to 4878 states and 5492 transitions. [2020-09-24 17:51:46,082 INFO L78 Accepts]: Start accepts. Automaton has 4878 states and 5492 transitions. Word has length 245 [2020-09-24 17:51:46,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:51:46,083 INFO L479 AbstractCegarLoop]: Abstraction has 4878 states and 5492 transitions. [2020-09-24 17:51:46,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 17:51:46,083 INFO L276 IsEmpty]: Start isEmpty. Operand 4878 states and 5492 transitions. [2020-09-24 17:51:46,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-24 17:51:46,095 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:51:46,095 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:51:46,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:51:46,096 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:51:46,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:51:46,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1475730443, now seen corresponding path program 1 times [2020-09-24 17:51:46,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:51:46,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731220342] [2020-09-24 17:51:46,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:51:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:46,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:46,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:49,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking...