/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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 [2020-09-25 13:01:03,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:01:03,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:01:03,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:01:03,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:01:03,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:01:03,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:01:03,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:01:03,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:01:03,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:01:03,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:01:03,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:01:03,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:01:03,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:01:03,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:01:03,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:01:03,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:01:03,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:01:03,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:01:03,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:01:03,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:01:03,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:01:03,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:01:03,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:01:03,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:01:03,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:01:03,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:01:03,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:01:03,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:01:03,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:01:03,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:01:03,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:01:03,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:01:03,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:01:03,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:01:03,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:01:03,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:01:03,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:01:03,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:01:03,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:01:03,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:01:03,247 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 [2020-09-25 13:01:03,294 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:01:03,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:01:03,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:01:03,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:01:03,297 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:01:03,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:01:03,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:01:03,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:01:03,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:01:03,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:01:03,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:01:03,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:01:03,300 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:01:03,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:01:03,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:01:03,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:01:03,301 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:01:03,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:01:03,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:01:03,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:01:03,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:01:03,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:01:03,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:01:03,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:01:03,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:01:03,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:01:03,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 13:01:03,303 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 13:01:03,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:01:03,782 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:01:03,788 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:01:03,792 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:01:03,793 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:01:03,795 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 13:01:03,894 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94b78c6e1/1c91b390d85a4d2191544ade9ae3e5e0/FLAGfb1978c6e [2020-09-25 13:01:04,813 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:01:04,814 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 13:01:04,865 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94b78c6e1/1c91b390d85a4d2191544ade9ae3e5e0/FLAGfb1978c6e [2020-09-25 13:01:05,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94b78c6e1/1c91b390d85a4d2191544ade9ae3e5e0 [2020-09-25 13:01:05,349 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:01:05,355 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:01:05,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:01:05,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:01:05,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:01:05,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:01:05" (1/1) ... [2020-09-25 13:01:05,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@485dcc1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:01:05, skipping insertion in model container [2020-09-25 13:01:05,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:01:05" (1/1) ... [2020-09-25 13:01:05,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:01:05,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:01:06,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:01:06,737 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:01:06,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:01:07,041 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:01:07,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:01:07 WrapperNode [2020-09-25 13:01:07,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:01:07,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:01:07,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:01:07,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:01:07,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:01:07" (1/1) ... [2020-09-25 13:01:07,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:01:07" (1/1) ... [2020-09-25 13:01:07,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:01:07" (1/1) ... [2020-09-25 13:01:07,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:01:07" (1/1) ... [2020-09-25 13:01:07,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:01:07" (1/1) ... [2020-09-25 13:01:07,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:01:07" (1/1) ... [2020-09-25 13:01:07,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:01:07" (1/1) ... [2020-09-25 13:01:07,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:01:07,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:01:07,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:01:07,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:01:07,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:01:07" (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 [2020-09-25 13:01:07,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:01:07,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:01:07,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-25 13:01:07,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-25 13:01:07,391 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-09-25 13:01:07,391 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-25 13:01:07,392 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-25 13:01:07,392 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-25 13:01:07,392 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_shared [2020-09-25 13:01:07,393 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_share_check [2020-09-25 13:01:07,393 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-25 13:01:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-09-25 13:01:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_cow [2020-09-25 13:01:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow [2020-09-25 13:01:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 13:01:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2020-09-25 13:01:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 13:01:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 13:01:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 13:01:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 13:01:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 13:01:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 13:01:07,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 13:01:07,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 13:01:07,398 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-25 13:01:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-25 13:01:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_off [2020-09-25 13:01:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2020-09-25 13:01:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_type_trans [2020-09-25 13:01:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connect_disconnect [2020-09-25 13:01:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connected [2020-09-25 13:01:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_disconnected [2020-09-25 13:01:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_indication [2020-09-25 13:01:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_transmit [2020-09-25 13:01:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_xmit [2020-09-25 13:01:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_open [2020-09-25 13:01:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_close [2020-09-25 13:01:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_rx [2020-09-25 13:01:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_ioctl [2020-09-25 13:01:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_init [2020-09-25 13:01:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_exit [2020-09-25 13:01:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_hdlc_proto_1 [2020-09-25 13:01:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:01:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-25 13:01:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-25 13:01:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-25 13:01:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-25 13:01:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-25 13:01:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2020-09-25 13:01:07,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-09-25 13:01:07,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_14 [2020-09-25 13:01:07,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-25 13:01:07,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 13:01:07,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-25 13:01:07,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-25 13:01:07,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-25 13:01:07,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-25 13:01:07,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-25 13:01:07,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-25 13:01:07,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-25 13:01:07,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-25 13:01:07,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 13:01:07,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-25 13:01:07,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-25 13:01:07,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-25 13:01:07,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-25 13:01:07,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-25 13:01:07,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 13:01:07,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-25 13:01:07,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2020-09-25 13:01:07,408 INFO L138 BoogieDeclarations]: Found implementation of procedure attach_hdlc_protocol [2020-09-25 13:01:07,408 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2020-09-25 13:01:07,409 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_connect_request [2020-09-25 13:01:07,409 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_received [2020-09-25 13:01:07,409 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_request [2020-09-25 13:01:07,409 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_disconnect_request [2020-09-25 13:01:07,409 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_register [2020-09-25 13:01:07,409 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_unregister [2020-09-25 13:01:07,410 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2020-09-25 13:01:07,410 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-09-25 13:01:07,410 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2020-09-25 13:01:07,410 INFO L138 BoogieDeclarations]: Found implementation of procedure register_hdlc_protocol [2020-09-25 13:01:07,410 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-25 13:01:07,410 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-25 13:01:07,411 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-25 13:01:07,411 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-25 13:01:07,411 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hdlc_protocol [2020-09-25 13:01:07,411 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 13:01:07,411 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 13:01:07,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:01:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 13:01:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-09-25 13:01:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2020-09-25 13:01:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-25 13:01:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:01:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2020-09-25 13:01:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-25 13:01:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-25 13:01:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-25 13:01:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-25 13:01:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-25 13:01:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-25 13:01:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2020-09-25 13:01:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-25 13:01:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:01:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-25 13:01:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure skb_shared [2020-09-25 13:01:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure skb_share_check [2020-09-25 13:01:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:01:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-25 13:01:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-25 13:01:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-25 13:01:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-25 13:01:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-09-25 13:01:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:01:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2020-09-25 13:01:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_cow [2020-09-25 13:01:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow [2020-09-25 13:01:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-25 13:01:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-25 13:01:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-25 13:01:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:01:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 13:01:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:01:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 13:01:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 13:01:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 13:01:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2020-09-25 13:01:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:01:07,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 13:01:07,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 13:01:07,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 13:01:07,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 13:01:07,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 13:01:07,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 13:01:07,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 13:01:07,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 13:01:07,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_hdlc_proto_1 [2020-09-25 13:01:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-25 13:01:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-25 13:01:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-25 13:01:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-09-25 13:01:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_14 [2020-09-25 13:01:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2020-09-25 13:01:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_off [2020-09-25 13:01:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-09-25 13:01:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure register_hdlc_protocol [2020-09-25 13:01:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hdlc_protocol [2020-09-25 13:01:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2020-09-25 13:01:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure attach_hdlc_protocol [2020-09-25 13:01:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_register [2020-09-25 13:01:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_unregister [2020-09-25 13:01:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_connect_request [2020-09-25 13:01:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_disconnect_request [2020-09-25 13:01:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_request [2020-09-25 13:01:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_received [2020-09-25 13:01:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure x25_type_trans [2020-09-25 13:01:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:01:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure x25_ioctl [2020-09-25 13:01:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connect_disconnect [2020-09-25 13:01:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connected [2020-09-25 13:01:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure x25_disconnected [2020-09-25 13:01:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_indication [2020-09-25 13:01:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_transmit [2020-09-25 13:01:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-25 13:01:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure x25_xmit [2020-09-25 13:01:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure x25_open [2020-09-25 13:01:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:01:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure x25_close [2020-09-25 13:01:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure x25_rx [2020-09-25 13:01:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-25 13:01:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure mod_init [2020-09-25 13:01:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure mod_exit [2020-09-25 13:01:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 13:01:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 13:01:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:01:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-25 13:01:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 13:01:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-25 13:01:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-25 13:01:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-25 13:01:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-25 13:01:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-25 13:01:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-25 13:01:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-25 13:01:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-25 13:01:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-25 13:01:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-25 13:01:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 13:01:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:01:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 13:01:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:01:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 13:01:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:01:08,021 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 13:01:09,117 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:01:09,118 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 13:01:09,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:01:09 BoogieIcfgContainer [2020-09-25 13:01:09,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:01:09,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:01:09,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:01:09,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:01:09,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:01:05" (1/3) ... [2020-09-25 13:01:09,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e179489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:01:09, skipping insertion in model container [2020-09-25 13:01:09,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:01:07" (2/3) ... [2020-09-25 13:01:09,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e179489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:01:09, skipping insertion in model container [2020-09-25 13:01:09,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:01:09" (3/3) ... [2020-09-25 13:01:09,144 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 [2020-09-25 13:01:09,155 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:01:09,168 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:01:09,189 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:01:09,221 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:01:09,222 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:01:09,222 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:01:09,222 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:01:09,222 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:01:09,222 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:01:09,222 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:01:09,223 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:01:09,263 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states. [2020-09-25 13:01:09,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-25 13:01:09,278 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:01:09,280 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] [2020-09-25 13:01:09,280 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:01:09,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:01:09,289 INFO L82 PathProgramCache]: Analyzing trace with hash 2033327711, now seen corresponding path program 1 times [2020-09-25 13:01:09,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:01:09,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950093739] [2020-09-25 13:01:09,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:01:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:09,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:10,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:11,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:11,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-25 13:01:11,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:01:11,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1453 [2020-09-25 13:01:11,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:11,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:11,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:01:11,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:01:11,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 13:01:11,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:01:11,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:01:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:11,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:11,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:11,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 13:01:11,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:11,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 13:01:11,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:11,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:11,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:11,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:11,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:11,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:11,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 13:01:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:11,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:11,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:11,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:01:11,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:11,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 13:01:11,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:11,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:11,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:11,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:11,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:11,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:11,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:01:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:11,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:11,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:11,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:01:11,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:11,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 13:01:11,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:11,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:11,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:11,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:11,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:11,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:11,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 13:01:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:11,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:11,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:11,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:01:11,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:11,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 13:01:11,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:11,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:11,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:11,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:11,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:11,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:11,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 13:01:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:11,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:11,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:11,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:01:11,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:11,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 13:01:11,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:11,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:11,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:01:11,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:11,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:01:11,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:11,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:01:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:11,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:11,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:11,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:01:11,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:11,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 13:01:11,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:11,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:11,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:01:11,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:11,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:01:11,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:11,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 13:01:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:11,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:12,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:12,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 13:01:12,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:12,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 13:01:12,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:12,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:12,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:01:12,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:12,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 13:01:12,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:12,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:01:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:12,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:12,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:12,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:01:12,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:12,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:01:12,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:12,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:12,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:12,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:12,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:12,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:12,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-25 13:01:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:12,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:12,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:12,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:01:12,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:12,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 13:01:12,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:12,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:01:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:01:12,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:12,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:01:12,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1950093739] [2020-09-25 13:01:12,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:01:12,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:01:12,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101723239] [2020-09-25 13:01:12,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:01:12,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:01:12,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:01:12,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:01:12,304 INFO L87 Difference]: Start difference. First operand 890 states. Second operand 10 states. [2020-09-25 13:01:12,454 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-25 13:01:12,950 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-09-25 13:01:14,154 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2020-09-25 13:01:14,394 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 13:01:14,595 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-25 13:01:14,772 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 13:01:17,426 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-09-25 13:01:22,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:01:22,840 INFO L93 Difference]: Finished difference Result 2288 states and 2752 transitions. [2020-09-25 13:01:22,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 13:01:22,843 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 106 [2020-09-25 13:01:22,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:01:22,879 INFO L225 Difference]: With dead ends: 2288 [2020-09-25 13:01:22,879 INFO L226 Difference]: Without dead ends: 1575 [2020-09-25 13:01:22,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2020-09-25 13:01:22,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2020-09-25 13:01:23,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1379. [2020-09-25 13:01:23,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2020-09-25 13:01:23,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1561 transitions. [2020-09-25 13:01:23,157 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1561 transitions. Word has length 106 [2020-09-25 13:01:23,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:01:23,158 INFO L479 AbstractCegarLoop]: Abstraction has 1379 states and 1561 transitions. [2020-09-25 13:01:23,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:01:23,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1561 transitions. [2020-09-25 13:01:23,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 13:01:23,168 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:01:23,168 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:01:23,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:01:23,169 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:01:23,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:01:23,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1002477034, now seen corresponding path program 1 times [2020-09-25 13:01:23,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:01:23,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804727441] [2020-09-25 13:01:23,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:01:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:23,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:23,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:23,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:25,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:25,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:28,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:28,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 13:01:28,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:01:28,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 13:01:28,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:28,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:01:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-25 13:01:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 13:01:28,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:28,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:01:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:28,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:28,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:28,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 13:01:28,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:28,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 13:01:28,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:28,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:28,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:28,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:28,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:28,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:28,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 13:01:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:28,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:28,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:28,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:01:28,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:28,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 13:01:28,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:28,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:28,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:28,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:28,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:28,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:28,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:01:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:28,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:28,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:28,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:01:28,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:28,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:01:28,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:28,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:28,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:28,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:28,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:28,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:28,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 13:01:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:28,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:28,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:28,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:01:28,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:28,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 13:01:28,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:28,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:28,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:28,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:28,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:28,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:28,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 13:01:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:28,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:28,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:28,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:01:28,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:28,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 13:01:28,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:28,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:28,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:28,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:28,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:28,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:28,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:01:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:28,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:28,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:28,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:01:28,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:28,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 13:01:28,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:28,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:28,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:28,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:28,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 13:01:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:28,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:29,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:29,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:29,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 13:01:29,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:01:29,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-09-25 13:01:29,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:29,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:29,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:01:29,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:29,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 13:01:29,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:29,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:01:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:29,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:29,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:29,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:01:29,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:29,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 13:01:29,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:29,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:29,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:29,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:29,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:29,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:29,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 13:01:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:29,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:29,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:29,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:01:29,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:29,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 13:01:29,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:29,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:29,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:29,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 13:01:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:29,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:29,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:29,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:29,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:01:29,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:01:29,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 13:01:29,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:29,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:29,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:01:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:01:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:01:29,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:29,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:01:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:29,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:29,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:29,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 13:01:29,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:29,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 13:01:29,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:29,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:01:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:01:29,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:01:29,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:29,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 13:01:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:29,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:29,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:29,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 13:01:29,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:29,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 13:01:29,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:29,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:29,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:29,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:01:29,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:29,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:01:29,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:01:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:29,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:29,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:29,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:01:29,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:29,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 13:01:29,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:29,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:29,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:29,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:29,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:29,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:29,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 13:01:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:29,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:29,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:29,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:01:29,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:29,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 13:01:29,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:29,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:29,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:29,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:01:29,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:29,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:29,606 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 13:01:29,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804727441] [2020-09-25 13:01:29,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:01:29,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:01:29,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628962498] [2020-09-25 13:01:29,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:01:29,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:01:29,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:01:29,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:01:29,613 INFO L87 Difference]: Start difference. First operand 1379 states and 1561 transitions. Second operand 10 states. [2020-09-25 13:01:31,616 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-25 13:01:36,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:01:36,420 INFO L93 Difference]: Finished difference Result 3708 states and 4430 transitions. [2020-09-25 13:01:36,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 13:01:36,427 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 171 [2020-09-25 13:01:36,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:01:36,444 INFO L225 Difference]: With dead ends: 3708 [2020-09-25 13:01:36,444 INFO L226 Difference]: Without dead ends: 2992 [2020-09-25 13:01:36,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-09-25 13:01:36,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2020-09-25 13:01:36,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 2629. [2020-09-25 13:01:36,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2629 states. [2020-09-25 13:01:36,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 2986 transitions. [2020-09-25 13:01:36,633 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 2986 transitions. Word has length 171 [2020-09-25 13:01:36,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:01:36,634 INFO L479 AbstractCegarLoop]: Abstraction has 2629 states and 2986 transitions. [2020-09-25 13:01:36,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:01:36,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 2986 transitions. [2020-09-25 13:01:36,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-09-25 13:01:36,644 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:01:36,645 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:01:36,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:01:36,645 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:01:36,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:01:36,646 INFO L82 PathProgramCache]: Analyzing trace with hash -544183953, now seen corresponding path program 1 times [2020-09-25 13:01:36,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:01:36,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1264825509] [2020-09-25 13:01:36,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:01:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:36,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:36,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:37,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:37,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:41,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:41,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-25 13:01:41,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:01:41,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 13:01:41,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:41,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:41,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:01:41,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 13:01:41,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 13:01:41,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:01:41,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:01:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:42,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:42,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:42,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 13:01:42,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:42,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 13:01:42,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:42,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:42,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:01:42,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:42,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 13:01:42,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:42,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 13:01:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:42,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:42,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:42,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:01:42,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:42,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 13:01:42,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:42,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:42,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:01:42,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:42,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:01:42,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:42,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:01:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:42,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:42,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:42,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:01:42,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:42,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 13:01:42,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:42,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:42,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:42,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:42,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:42,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:42,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 13:01:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:42,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:42,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:42,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:01:42,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:42,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 13:01:42,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:42,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:42,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:42,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:42,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:42,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:01:42,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 13:01:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:42,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:42,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:42,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 13:01:42,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:42,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 13:01:42,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:42,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:42,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:01:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 13:01:42,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:42,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:01:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:42,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:42,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:42,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:01:42,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:42,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 13:01:42,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:42,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:42,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:42,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:42,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:42,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:42,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 13:01:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:42,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:42,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:42,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 13:01:42,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:42,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-09-25 13:01:42,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:42,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:42,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:01:42,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:01:42,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 13:01:42,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:42,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:01:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:42,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:42,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:42,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:01:42,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:42,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 13:01:42,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:42,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:42,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:01:42,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:42,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:01:42,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:43,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 13:01:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:43,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:43,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:43,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:01:43,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:43,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 13:01:43,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:43,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:43,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:01:43,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:43,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:01:43,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:43,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 13:01:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:43,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:43,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:43,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 13:01:43,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:43,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 13:01:43,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:43,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:43,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:01:43,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:43,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 13:01:43,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:43,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 13:01:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:43,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:43,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:43,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:01:43,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:43,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 13:01:43,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:43,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:43,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:43,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:43,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:43,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:43,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 13:01:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:43,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:43,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:43,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:01:43,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:43,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 13:01:43,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:43,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:43,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:43,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 13:01:43,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:43,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:43,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:01:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:43,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:43,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:43,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:01:43,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:43,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:01:43,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:43,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:43,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:43,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:01:43,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:43,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:43,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 13:01:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:01:43,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:01:43,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:01:43,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:01:43,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:01:43,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 13:01:43,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:01:43,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 13:01:43,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:01:43,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:01:43,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:01:43,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:01:43,483 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 13:01:43,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1264825509] [2020-09-25 13:01:43,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:01:43,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 13:01:43,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625126503] [2020-09-25 13:01:43,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 13:01:43,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:01:43,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 13:01:43,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-09-25 13:01:43,487 INFO L87 Difference]: Start difference. First operand 2629 states and 2986 transitions. Second operand 13 states. [2020-09-25 13:01:44,426 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-09-25 13:01:48,234 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-25 13:01:48,434 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-09-25 13:01:48,632 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-09-25 13:01:48,846 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 109