/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:03:13,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:03:13,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:03:13,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:03:13,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:03:13,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:03:13,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:03:13,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:03:13,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:03:13,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:03:13,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:03:13,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:03:13,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:03:13,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:03:13,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:03:13,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:03:13,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:03:13,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:03:13,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:03:13,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:03:13,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:03:13,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:03:13,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:03:13,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:03:13,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:03:13,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:03:13,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:03:13,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:03:13,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:03:13,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:03:13,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:03:13,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:03:13,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:03:13,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:03:13,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:03:13,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:03:13,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:03:13,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:03:13,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:03:13,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:03:13,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:03:13,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-09-24 20:03:13,318 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:03:13,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:03:13,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:03:13,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:03:13,321 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:03:13,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:03:13,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:03:13,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:03:13,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:03:13,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:03:13,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:03:13,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:03:13,323 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:03:13,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:03:13,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:03:13,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:03:13,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:03:13,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:03:13,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:03:13,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:03:13,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:03:13,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:03:13,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:03:13,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:03:13,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:03:13,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:03:13,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 20:03:13,327 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 20:03:13,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:03:13,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:03:13,819 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:03:13,821 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:03:13,821 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:03:13,822 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-24 20:03:13,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b470eec2e/31ff63c42d5c44d4837a162c46b48db4/FLAGf950c523f [2020-09-24 20:03:14,729 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:03:14,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-24 20:03:14,772 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b470eec2e/31ff63c42d5c44d4837a162c46b48db4/FLAGf950c523f [2020-09-24 20:03:15,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b470eec2e/31ff63c42d5c44d4837a162c46b48db4 [2020-09-24 20:03:15,277 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:03:15,283 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:03:15,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:03:15,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:03:15,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:03:15,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:03:15" (1/1) ... [2020-09-24 20:03:15,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6165aa75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:15, skipping insertion in model container [2020-09-24 20:03:15,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:03:15" (1/1) ... [2020-09-24 20:03:15,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:03:15,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:03:16,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:03:16,657 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:03:16,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:03:16,948 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:03:16,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:16 WrapperNode [2020-09-24 20:03:16,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:03:16,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:03:16,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:03:16,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:03:16,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:16" (1/1) ... [2020-09-24 20:03:16,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:16" (1/1) ... [2020-09-24 20:03:17,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:16" (1/1) ... [2020-09-24 20:03:17,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:16" (1/1) ... [2020-09-24 20:03:17,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:16" (1/1) ... [2020-09-24 20:03:17,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:16" (1/1) ... [2020-09-24 20:03:17,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:16" (1/1) ... [2020-09-24 20:03:17,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:03:17,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:03:17,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:03:17,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:03:17,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:03:17,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:03:17,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:03:17,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-24 20:03:17,308 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-09-24 20:03:17,308 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-09-24 20:03:17,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-24 20:03:17,310 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-24 20:03:17,310 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-24 20:03:17,310 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 20:03:17,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 20:03:17,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 20:03:17,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 20:03:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 20:03:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 20:03:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 20:03:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 20:03:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 20:03:17,315 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2020-09-24 20:03:17,316 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_set_drvdata [2020-09-24 20:03:17,316 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2020-09-24 20:03:17,316 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_unregister_driver [2020-09-24 20:03:17,317 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2020-09-24 20:03:17,317 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2020-09-24 20:03:17,317 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_reset [2020-09-24 20:03:17,317 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_init [2020-09-24 20:03:17,318 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_read_busy [2020-09-24 20:03:17,318 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_read [2020-09-24 20:03:17,318 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_write [2020-09-24 20:03:17,318 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_probe [2020-09-24 20:03:17,318 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_remove [2020-09-24 20:03:17,319 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_init [2020-09-24 20:03:17,319 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_exit [2020-09-24 20:03:17,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_wl1271_if_operations_2 [2020-09-24 20:03:17,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_spi_driver_1 [2020-09-24 20:03:17,319 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:03:17,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-09-24 20:03:17,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-09-24 20:03:17,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-09-24 20:03:17,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-09-24 20:03:17,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-09-24 20:03:17,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-09-24 20:03:17,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-09-24 20:03:17,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-09-24 20:03:17,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-09-24 20:03:17,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-09-24 20:03:17,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-09-24 20:03:17,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-09-24 20:03:17,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-09-24 20:03:17,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-09-24 20:03:17,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 20:03:17,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-09-24 20:03:17,324 INFO L138 BoogieDeclarations]: Found implementation of procedure crc7 [2020-09-24 20:03:17,324 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-09-24 20:03:17,325 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-24 20:03:17,325 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-24 20:03:17,326 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2020-09-24 20:03:17,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 20:03:17,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-09-24 20:03:17,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_setup_2 [2020-09-24 20:03:17,327 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add [2020-09-24 20:03:17,327 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_data [2020-09-24 20:03:17,327 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_resources [2020-09-24 20:03:17,328 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_alloc [2020-09-24 20:03:17,328 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_put [2020-09-24 20:03:17,328 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2020-09-24 20:03:17,329 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_register_driver [2020-09-24 20:03:17,329 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_setup [2020-09-24 20:03:17,329 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2020-09-24 20:03:17,329 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-09-24 20:03:17,330 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 20:03:17,331 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-24 20:03:17,331 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 20:03:17,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:03:17,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 20:03:17,334 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-24 20:03:17,334 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-09-24 20:03:17,335 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-09-24 20:03:17,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:03:17,335 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-09-24 20:03:17,336 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-09-24 20:03:17,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:03:17,336 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2020-09-24 20:03:17,337 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-24 20:03:17,338 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-24 20:03:17,338 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-09-24 20:03:17,338 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 20:03:17,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 20:03:17,339 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-24 20:03:17,339 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-24 20:03:17,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 20:03:17,340 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-24 20:03:17,340 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:03:17,340 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 20:03:17,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:03:17,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2020-09-24 20:03:17,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 20:03:17,341 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 20:03:17,342 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 20:03:17,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:03:17,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 20:03:17,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 20:03:17,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 20:03:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 20:03:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 20:03:17,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 20:03:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_wl1271_if_operations_2 [2020-09-24 20:03:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_spi_driver_1 [2020-09-24 20:03:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure crc7 [2020-09-24 20:03:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2020-09-24 20:03:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure spi_set_drvdata [2020-09-24 20:03:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2020-09-24 20:03:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure spi_register_driver [2020-09-24 20:03:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure spi_unregister_driver [2020-09-24 20:03:17,411 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2020-09-24 20:03:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-24 20:03:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2020-09-24 20:03:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure spi_setup [2020-09-24 20:03:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2020-09-24 20:03:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2020-09-24 20:03:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_alloc [2020-09-24 20:03:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_resources [2020-09-24 20:03:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_data [2020-09-24 20:03:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add [2020-09-24 20:03:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_put [2020-09-24 20:03:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_reset [2020-09-24 20:03:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:03:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:03:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:03:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_init [2020-09-24 20:03:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:03:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_read_busy [2020-09-24 20:03:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_read [2020-09-24 20:03:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_write [2020-09-24 20:03:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_probe [2020-09-24 20:03:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_remove [2020-09-24 20:03:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_init [2020-09-24 20:03:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_exit [2020-09-24 20:03:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 20:03:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-09-24 20:03:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 20:03:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_setup_2 [2020-09-24 20:03:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:03:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-09-24 20:03:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-09-24 20:03:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-09-24 20:03:17,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-09-24 20:03:17,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-09-24 20:03:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-09-24 20:03:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-09-24 20:03:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-09-24 20:03:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-24 20:03:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-09-24 20:03:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-09-24 20:03:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-09-24 20:03:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-09-24 20:03:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-09-24 20:03:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-09-24 20:03:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-09-24 20:03:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:03:17,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:03:17,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:03:17,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 20:03:17,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:03:18,711 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 20:03:19,553 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-09-24 20:03:19,938 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:03:19,938 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 20:03:19,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:03:19 BoogieIcfgContainer [2020-09-24 20:03:19,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:03:19,952 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:03:19,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:03:19,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:03:19,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:03:15" (1/3) ... [2020-09-24 20:03:19,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732b9e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:03:19, skipping insertion in model container [2020-09-24 20:03:19,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:16" (2/3) ... [2020-09-24 20:03:19,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732b9e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:03:19, skipping insertion in model container [2020-09-24 20:03:19,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:03:19" (3/3) ... [2020-09-24 20:03:19,960 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-24 20:03:19,971 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:03:19,982 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:03:20,005 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:03:20,039 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:03:20,039 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:03:20,039 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:03:20,040 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:03:20,040 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:03:20,040 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:03:20,040 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:03:20,040 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:03:20,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2020-09-24 20:03:20,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 20:03:20,099 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:03:20,100 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:03:20,101 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:03:20,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:03:20,109 INFO L82 PathProgramCache]: Analyzing trace with hash -126969232, now seen corresponding path program 1 times [2020-09-24 20:03:20,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:03:20,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [4866362] [2020-09-24 20:03:20,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:03:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:20,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:21,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:21,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:21,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:21,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-24 20:03:21,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:03:21,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1044 [2020-09-24 20:03:21,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:21,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:21,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-09-24 20:03:21,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 20:03:21,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:03:22,322 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:03:22,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:22,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:22,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:22,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 20:03:22,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:22,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-24 20:03:22,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:22,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:22,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:22,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:22,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:22,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 20:03:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:22,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:22,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:22,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:03:22,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:22,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 20:03:22,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:22,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:22,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:22,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:22,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:22,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 20:03:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:22,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:22,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:22,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:03:22,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:22,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-24 20:03:22,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:22,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:22,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:22,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:22,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:23,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 20:03:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:23,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:23,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:23,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:03:23,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:23,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 20:03:23,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:23,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:23,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:23,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:23,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:03:23,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 20:03:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:23,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:23,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:23,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:23,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:03:23,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:03:23,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-24 20:03:23,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:23,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:23,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:23,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:23,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:03:23,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 20:03:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:23,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:23,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:23,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:23,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:03:23,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:03:23,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-09-24 20:03:23,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:23,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:23,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:23,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:23,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:23,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 20:03:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:23,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:23,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:23,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 20:03:23,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:23,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 20:03:23,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:23,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:23,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 20:03:23,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:23,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:23,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:23,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:23,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:23,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:03:23,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:23,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 20:03:23,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:23,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:23,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:23,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:23,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:23,663 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 20:03:23,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [4866362] [2020-09-24 20:03:23,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:03:23,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 20:03:23,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60202683] [2020-09-24 20:03:23,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 20:03:23,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:03:23,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 20:03:23,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:03:23,696 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 6 states. [2020-09-24 20:03:24,063 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:03:24,884 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 20:03:25,343 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:03:35,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:03:35,666 INFO L93 Difference]: Finished difference Result 3387 states and 4046 transitions. [2020-09-24 20:03:35,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 20:03:35,672 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 190 [2020-09-24 20:03:35,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:03:35,718 INFO L225 Difference]: With dead ends: 3387 [2020-09-24 20:03:35,719 INFO L226 Difference]: Without dead ends: 2374 [2020-09-24 20:03:35,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:03:35,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states. [2020-09-24 20:03:35,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 1920. [2020-09-24 20:03:35,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1920 states. [2020-09-24 20:03:35,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2150 transitions. [2020-09-24 20:03:35,984 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2150 transitions. Word has length 190 [2020-09-24 20:03:35,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:03:35,986 INFO L479 AbstractCegarLoop]: Abstraction has 1920 states and 2150 transitions. [2020-09-24 20:03:35,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 20:03:35,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2150 transitions. [2020-09-24 20:03:35,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 20:03:35,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:03:35,993 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:03:35,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:03:35,994 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:03:35,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:03:35,994 INFO L82 PathProgramCache]: Analyzing trace with hash -605503019, now seen corresponding path program 1 times [2020-09-24 20:03:35,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:03:35,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197256418] [2020-09-24 20:03:35,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:03:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:36,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:36,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:37,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:37,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 20:03:37,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:03:37,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1059 [2020-09-24 20:03:37,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:03:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-24 20:03:37,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:03:37,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:37,558 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:03:37,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:37,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:37,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:37,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 20:03:37,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:37,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-24 20:03:37,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:37,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:37,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:37,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:37,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:37,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 20:03:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:37,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:37,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:37,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:03:37,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:37,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 20:03:37,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:37,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:37,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:37,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:37,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 20:03:37,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 20:03:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:37,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:37,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:37,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:03:37,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:37,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 20:03:37,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:37,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:37,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:37,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:37,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:37,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 20:03:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:37,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:38,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:38,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:03:38,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:38,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 20:03:38,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:38,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:38,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:38,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:38,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:38,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 20:03:38,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:38,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:38,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:38,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:03:38,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:38,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 20:03:38,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:38,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:03:38,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 20:03:38,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:03:38,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:38,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 20:03:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:38,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:38,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:38,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:38,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:03:38,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:03:38,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-24 20:03:38,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:38,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:38,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:03:38,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:38,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:38,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-09-24 20:03:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:38,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:38,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:38,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:03:38,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:38,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 20:03:38,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:38,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:38,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 20:03:38,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:38,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:38,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:03:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:38,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:38,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:38,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:03:38,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:38,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 20:03:38,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:38,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:38,619 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-24 20:03:38,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197256418] [2020-09-24 20:03:38,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:03:38,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 20:03:38,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89892900] [2020-09-24 20:03:38,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 20:03:38,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:03:38,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 20:03:38,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:03:38,624 INFO L87 Difference]: Start difference. First operand 1920 states and 2150 transitions. Second operand 7 states. [2020-09-24 20:03:38,931 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:03:40,080 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-24 20:03:40,444 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-09-24 20:03:40,778 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:03:46,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:03:46,478 INFO L93 Difference]: Finished difference Result 3893 states and 4450 transitions. [2020-09-24 20:03:46,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 20:03:46,478 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2020-09-24 20:03:46,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:03:46,491 INFO L225 Difference]: With dead ends: 3893 [2020-09-24 20:03:46,491 INFO L226 Difference]: Without dead ends: 2119 [2020-09-24 20:03:46,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-09-24 20:03:46,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2020-09-24 20:03:46,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 1926. [2020-09-24 20:03:46,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1926 states. [2020-09-24 20:03:46,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2158 transitions. [2020-09-24 20:03:46,612 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2158 transitions. Word has length 204 [2020-09-24 20:03:46,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:03:46,613 INFO L479 AbstractCegarLoop]: Abstraction has 1926 states and 2158 transitions. [2020-09-24 20:03:46,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 20:03:46,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2158 transitions. [2020-09-24 20:03:46,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 20:03:46,616 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:03:46,617 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:03:46,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:03:46,617 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:03:46,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:03:46,618 INFO L82 PathProgramCache]: Analyzing trace with hash 216367441, now seen corresponding path program 1 times [2020-09-24 20:03:46,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:03:46,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168656006] [2020-09-24 20:03:46,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:03:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:46,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:47,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:47,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-09-24 20:03:47,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:47,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 680 [2020-09-24 20:03:47,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:47,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:47,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-24 20:03:47,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-24 20:03:47,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:48,375 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:03:48,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:48,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:48,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:48,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 20:03:48,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:48,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-09-24 20:03:48,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:48,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:48,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:48,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-24 20:03:48,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:48,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 20:03:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:48,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:48,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:48,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:03:48,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:48,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-24 20:03:48,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:48,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:48,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:48,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 20:03:48,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:48,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 20:03:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:49,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:49,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:49,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:03:49,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:49,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 20:03:49,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:49,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:49,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:49,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 20:03:49,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:49,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 20:03:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:49,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:49,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:49,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:03:49,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:49,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 20:03:49,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:49,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:49,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:49,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:03:49,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:49,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 20:03:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:49,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:49,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:49,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 20:03:49,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:49,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 20:03:49,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:49,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:49,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:49,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:03:49,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:49,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 20:03:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:49,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:49,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:49,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 20:03:49,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:49,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 20:03:49,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:49,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:49,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:49,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:03:49,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:49,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 20:03:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:49,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:49,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:49,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:03:49,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:49,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-24 20:03:49,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:49,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:49,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 20:03:49,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:49,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:03:49,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:49,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:49,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:49,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:03:49,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:49,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 20:03:49,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:49,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:49,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:49,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:49,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:49,701 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-24 20:03:49,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168656006] [2020-09-24 20:03:49,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:03:49,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 20:03:49,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356730903] [2020-09-24 20:03:49,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 20:03:49,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:03:49,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 20:03:49,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:03:49,705 INFO L87 Difference]: Start difference. First operand 1926 states and 2158 transitions. Second operand 7 states. [2020-09-24 20:03:49,992 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:03:50,945 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-24 20:03:51,384 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:03:56,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:03:56,841 INFO L93 Difference]: Finished difference Result 2117 states and 2394 transitions. [2020-09-24 20:03:56,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 20:03:56,842 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-09-24 20:03:56,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:03:56,854 INFO L225 Difference]: With dead ends: 2117 [2020-09-24 20:03:56,854 INFO L226 Difference]: Without dead ends: 2114 [2020-09-24 20:03:56,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:03:56,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2114 states. [2020-09-24 20:03:56,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2114 to 1925. [2020-09-24 20:03:56,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1925 states. [2020-09-24 20:03:56,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 2156 transitions. [2020-09-24 20:03:56,969 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 2156 transitions. Word has length 212 [2020-09-24 20:03:56,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:03:56,969 INFO L479 AbstractCegarLoop]: Abstraction has 1925 states and 2156 transitions. [2020-09-24 20:03:56,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 20:03:56,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 2156 transitions. [2020-09-24 20:03:56,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-24 20:03:56,973 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:03:56,973 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:03:56,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:03:56,974 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:03:56,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:03:56,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1883054238, now seen corresponding path program 1 times [2020-09-24 20:03:56,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:03:56,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854521468] [2020-09-24 20:03:56,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:03:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:57,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:57,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:57,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-09-24 20:03:57,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:57,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 579 [2020-09-24 20:03:57,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:57,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:57,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-24 20:03:57,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-24 20:03:57,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:58,588 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:03:58,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:58,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:58,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:58,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 20:03:58,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:58,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-09-24 20:03:58,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:58,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:58,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:58,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 20:03:58,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:59,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-24 20:03:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:59,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:59,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:59,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:03:59,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:59,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 20:03:59,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 20:03:59,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:59,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 20:03:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:59,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:59,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:59,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:03:59,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:59,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 20:03:59,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:59,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:59,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:59,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 20:03:59,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:59,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 20:03:59,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:59,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:59,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:59,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:03:59,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:59,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 20:03:59,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:59,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:59,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:59,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:03:59,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:59,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 20:03:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:59,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:59,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:59,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 20:03:59,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:59,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 20:03:59,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:59,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:59,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:59,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:03:59,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:59,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 20:03:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:59,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:59,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:59,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 20:03:59,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:59,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-24 20:03:59,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:59,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:59,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:03:59,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:59,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 20:03:59,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:59,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:59,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:59,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:03:59,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:59,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-24 20:03:59,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:59,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:59,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:59,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 20:03:59,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:59,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:03:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:59,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:59,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:59,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:03:59,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:59,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 20:03:59,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:59,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:59,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:59,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:59,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:59,988 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-24 20:03:59,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [854521468] [2020-09-24 20:03:59,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:03:59,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 20:03:59,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10164401] [2020-09-24 20:03:59,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 20:03:59,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:03:59,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 20:03:59,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:03:59,992 INFO L87 Difference]: Start difference. First operand 1925 states and 2156 transitions. Second operand 7 states. [2020-09-24 20:04:00,275 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:04:01,232 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-24 20:04:01,673 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:04:07,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:04:07,099 INFO L93 Difference]: Finished difference Result 2116 states and 2392 transitions. [2020-09-24 20:04:07,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 20:04:07,100 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 213 [2020-09-24 20:04:07,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:04:07,109 INFO L225 Difference]: With dead ends: 2116 [2020-09-24 20:04:07,109 INFO L226 Difference]: Without dead ends: 2113 [2020-09-24 20:04:07,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:04:07,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2020-09-24 20:04:07,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 1924. [2020-09-24 20:04:07,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1924 states. [2020-09-24 20:04:07,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1924 states to 1924 states and 2154 transitions. [2020-09-24 20:04:07,222 INFO L78 Accepts]: Start accepts. Automaton has 1924 states and 2154 transitions. Word has length 213 [2020-09-24 20:04:07,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:04:07,222 INFO L479 AbstractCegarLoop]: Abstraction has 1924 states and 2154 transitions. [2020-09-24 20:04:07,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 20:04:07,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1924 states and 2154 transitions. [2020-09-24 20:04:07,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-09-24 20:04:07,228 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:04:07,228 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:04:07,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:04:07,232 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:04:07,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:04:07,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1754355316, now seen corresponding path program 1 times [2020-09-24 20:04:07,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:04:07,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1127504331] [2020-09-24 20:04:07,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:04:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:07,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking...