/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=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--can--usb--usb_8dev.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 06:56:13,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 06:56:13,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 06:56:13,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 06:56:13,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 06:56:13,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 06:56:13,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 06:56:13,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 06:56:13,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 06:56:13,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 06:56:13,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 06:56:13,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 06:56:13,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 06:56:13,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 06:56:13,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 06:56:13,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 06:56:13,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 06:56:13,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 06:56:13,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 06:56:13,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 06:56:13,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 06:56:13,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 06:56:13,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 06:56:13,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 06:56:13,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 06:56:13,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 06:56:13,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 06:56:13,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 06:56:13,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 06:56:13,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 06:56:13,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 06:56:13,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 06:56:13,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 06:56:13,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 06:56:13,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 06:56:13,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 06:56:13,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 06:56:13,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 06:56:13,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 06:56:13,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 06:56:13,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 06:56:13,162 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 [2020-10-15 06:56:13,184 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 06:56:13,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 06:56:13,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 06:56:13,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 06:56:13,186 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 06:56:13,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 06:56:13,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 06:56:13,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 06:56:13,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 06:56:13,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 06:56:13,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 06:56:13,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 06:56:13,187 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 06:56:13,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 06:56:13,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 06:56:13,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 06:56:13,188 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 06:56:13,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 06:56:13,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 06:56:13,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 06:56:13,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 06:56:13,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 06:56:13,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 06:56:13,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 06:56:13,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 06:56:13,190 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 06:56:13,190 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 06:56:13,190 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 06:56:13,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 06:56:13,547 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 06:56:13,551 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 06:56:13,553 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 06:56:13,554 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 06:56:13,556 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2020-10-15 06:56:13,632 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c88e6a8a2/dccf39f78e6a475c9ae611076f0e14ec/FLAG85c72f3d8 [2020-10-15 06:56:14,450 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 06:56:14,450 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2020-10-15 06:56:14,489 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c88e6a8a2/dccf39f78e6a475c9ae611076f0e14ec/FLAG85c72f3d8 [2020-10-15 06:56:14,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c88e6a8a2/dccf39f78e6a475c9ae611076f0e14ec [2020-10-15 06:56:14,980 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 06:56:14,982 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 06:56:14,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 06:56:14,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 06:56:14,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 06:56:14,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:56:14" (1/1) ... [2020-10-15 06:56:14,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68b90d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:14, skipping insertion in model container [2020-10-15 06:56:14,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:56:14" (1/1) ... [2020-10-15 06:56:15,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 06:56:15,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 06:56:17,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 06:56:17,183 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 06:56:17,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 06:56:17,775 INFO L208 MainTranslator]: Completed translation [2020-10-15 06:56:17,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:17 WrapperNode [2020-10-15 06:56:17,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 06:56:17,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 06:56:17,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 06:56:17,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 06:56:17,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:17" (1/1) ... [2020-10-15 06:56:17,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:17" (1/1) ... [2020-10-15 06:56:17,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:17" (1/1) ... [2020-10-15 06:56:17,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:17" (1/1) ... [2020-10-15 06:56:17,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:17" (1/1) ... [2020-10-15 06:56:17,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:17" (1/1) ... [2020-10-15 06:56:17,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:17" (1/1) ... [2020-10-15 06:56:17,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 06:56:17,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 06:56:17,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 06:56:17,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 06:56:17,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:17" (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 [2020-10-15 06:56:18,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 06:56:18,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 06:56:18,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-15 06:56:18,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-10-15 06:56:18,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2020-10-15 06:56:18,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-10-15 06:56:18,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2020-10-15 06:56:18,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2020-10-15 06:56:18,058 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-10-15 06:56:18,058 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-10-15 06:56:18,058 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-15 06:56:18,058 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-15 06:56:18,059 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-15 06:56:18,059 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2020-10-15 06:56:18,059 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2020-10-15 06:56:18,059 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2020-10-15 06:56:18,059 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-15 06:56:18,059 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-15 06:56:18,060 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2020-10-15 06:56:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-15 06:56:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-15 06:56:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-15 06:56:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-15 06:56:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 06:56:18,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-15 06:56:18,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-15 06:56:18,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-15 06:56:18,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-15 06:56:18,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-15 06:56:18,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-15 06:56:18,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-15 06:56:18,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-15 06:56:18,063 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-10-15 06:56:18,063 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-15 06:56:18,063 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-10-15 06:56:18,063 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-10-15 06:56:18,063 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-10-15 06:56:18,063 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-10-15 06:56:18,064 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-10-15 06:56:18,064 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-10-15 06:56:18,064 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2020-10-15 06:56:18,064 INFO L138 BoogieDeclarations]: Found implementation of procedure can_dropped_invalid_skb [2020-10-15 06:56:18,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_send_cmd_msg [2020-10-15 06:56:18,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_wait_cmd_msg [2020-10-15 06:56:18,064 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_send_cmd [2020-10-15 06:56:18,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_open [2020-10-15 06:56:18,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_close [2020-10-15 06:56:18,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_version [2020-10-15 06:56:18,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_set_mode [2020-10-15 06:56:18,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_rx_err_msg [2020-10-15 06:56:18,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_rx_can_msg [2020-10-15 06:56:18,065 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_read_bulk_callback [2020-10-15 06:56:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_write_bulk_callback [2020-10-15 06:56:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_start_xmit [2020-10-15 06:56:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_get_berr_counter [2020-10-15 06:56:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_start [2020-10-15 06:56:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_open [2020-10-15 06:56:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2020-10-15 06:56:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_close [2020-10-15 06:56:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_probe [2020-10-15 06:56:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_disconnect [2020-10-15 06:56:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_driver_init [2020-10-15 06:56:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_driver_exit [2020-10-15 06:56:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-15 06:56:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-10-15 06:56:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 06:56:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-15 06:56:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2020-10-15 06:56:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2020-10-15 06:56:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_4 [2020-10-15 06:56:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2020-10-15 06:56:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_7 [2020-10-15 06:56:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_8 [2020-10-15 06:56:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_9 [2020-10-15 06:56:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2020-10-15 06:56:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2020-10-15 06:56:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_13 [2020-10-15 06:56:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_14 [2020-10-15 06:56:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_15 [2020-10-15 06:56:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_16 [2020-10-15 06:56:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_18 [2020-10-15 06:56:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_19 [2020-10-15 06:56:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-15 06:56:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-15 06:56:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-15 06:56:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-15 06:56:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-15 06:56:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-15 06:56:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-15 06:56:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-15 06:56:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-15 06:56:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-15 06:56:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-15 06:56:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-15 06:56:18,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-15 06:56:18,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-15 06:56:18,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-15 06:56:18,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-15 06:56:18,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-15 06:56:18,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-15 06:56:18,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-10-15 06:56:18,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-10-15 06:56:18,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-15 06:56:18,073 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-15 06:56:18,073 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_err_skb [2020-10-15 06:56:18,073 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_skb [2020-10-15 06:56:18,073 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_candev [2020-10-15 06:56:18,073 INFO L138 BoogieDeclarations]: Found implementation of procedure can_bus_off [2020-10-15 06:56:18,074 INFO L138 BoogieDeclarations]: Found implementation of procedure can_free_echo_skb [2020-10-15 06:56:18,074 INFO L138 BoogieDeclarations]: Found implementation of procedure can_get_echo_skb [2020-10-15 06:56:18,074 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2020-10-15 06:56:18,074 INFO L138 BoogieDeclarations]: Found implementation of procedure can_put_echo_skb [2020-10-15 06:56:18,074 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2020-10-15 06:56:18,074 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2020-10-15 06:56:18,074 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-15 06:56:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_can_led_init [2020-10-15 06:56:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2020-10-15 06:56:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2020-10-15 06:56:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-15 06:56:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-10-15 06:56:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-10-15 06:56:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2020-10-15 06:56:18,076 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-15 06:56:18,076 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-10-15 06:56:18,076 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-10-15 06:56:18,076 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-10-15 06:56:18,076 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2020-10-15 06:56:18,076 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2020-10-15 06:56:18,076 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2020-10-15 06:56:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2020-10-15 06:56:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-15 06:56:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure register_candev [2020-10-15 06:56:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-10-15 06:56:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-15 06:56:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2020-10-15 06:56:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2020-10-15 06:56:18,078 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-15 06:56:18,078 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-15 06:56:18,078 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2020-10-15 06:56:18,078 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-15 06:56:18,078 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2020-10-15 06:56:18,079 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2020-10-15 06:56:18,079 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-15 06:56:18,079 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-15 06:56:18,079 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-15 06:56:18,079 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-15 06:56:18,079 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-15 06:56:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 06:56:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-15 06:56:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-15 06:56:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-15 06:56:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-15 06:56:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-10-15 06:56:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2020-10-15 06:56:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-10-15 06:56:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2020-10-15 06:56:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 06:56:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2020-10-15 06:56:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-10-15 06:56:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-10-15 06:56:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-15 06:56:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-15 06:56:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-15 06:56:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-15 06:56:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-15 06:56:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2020-10-15 06:56:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 06:56:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2020-10-15 06:56:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2020-10-15 06:56:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-15 06:56:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 06:56:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-15 06:56:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-15 06:56:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-15 06:56:18,083 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-10-15 06:56:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2020-10-15 06:56:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-15 06:56:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-15 06:56:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-15 06:56:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_16 [2020-10-15 06:56:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_15 [2020-10-15 06:56:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-15 06:56:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-15 06:56:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_18 [2020-10-15 06:56:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-15 06:56:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_19 [2020-10-15 06:56:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2020-10-15 06:56:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 06:56:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 06:56:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2020-10-15 06:56:18,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_4 [2020-10-15 06:56:18,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_9 [2020-10-15 06:56:18,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_7 [2020-10-15 06:56:18,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_8 [2020-10-15 06:56:18,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2020-10-15 06:56:18,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_13 [2020-10-15 06:56:18,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_14 [2020-10-15 06:56:18,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2020-10-15 06:56:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2020-10-15 06:56:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2020-10-15 06:56:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2020-10-15 06:56:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2020-10-15 06:56:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2020-10-15 06:56:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-15 06:56:18,087 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-15 06:56:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2020-10-15 06:56:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2020-10-15 06:56:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-15 06:56:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-15 06:56:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-15 06:56:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-15 06:56:18,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-15 06:56:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-15 06:56:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-15 06:56:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-15 06:56:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-15 06:56:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-15 06:56:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-15 06:56:18,089 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-15 06:56:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-15 06:56:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-15 06:56:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-15 06:56:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-15 06:56:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 06:56:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-15 06:56:18,090 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 06:56:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 06:56:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 06:56:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-15 06:56:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-15 06:56:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-15 06:56:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-15 06:56:18,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-15 06:56:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-15 06:56:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-15 06:56:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-10-15 06:56:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2020-10-15 06:56:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2020-10-15 06:56:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-10-15 06:56:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 06:56:18,092 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-15 06:56:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2020-10-15 06:56:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-10-15 06:56:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-10-15 06:56:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-10-15 06:56:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-10-15 06:56:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-10-15 06:56:18,093 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-10-15 06:56:18,094 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-10-15 06:56:18,094 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2020-10-15 06:56:18,094 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2020-10-15 06:56:18,094 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2020-10-15 06:56:18,094 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-10-15 06:56:18,094 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-10-15 06:56:18,094 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-10-15 06:56:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-10-15 06:56:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2020-10-15 06:56:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure devm_can_led_init [2020-10-15 06:56:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure can_dropped_invalid_skb [2020-10-15 06:56:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_candev [2020-10-15 06:56:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2020-10-15 06:56:18,095 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2020-10-15 06:56:18,096 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2020-10-15 06:56:18,096 INFO L130 BoogieDeclarations]: Found specification of procedure register_candev [2020-10-15 06:56:18,096 INFO L130 BoogieDeclarations]: Found specification of procedure can_bus_off [2020-10-15 06:56:18,096 INFO L130 BoogieDeclarations]: Found specification of procedure can_put_echo_skb [2020-10-15 06:56:18,096 INFO L130 BoogieDeclarations]: Found specification of procedure can_get_echo_skb [2020-10-15 06:56:18,096 INFO L130 BoogieDeclarations]: Found specification of procedure can_free_echo_skb [2020-10-15 06:56:18,096 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_skb [2020-10-15 06:56:18,096 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_err_skb [2020-10-15 06:56:18,097 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_send_cmd_msg [2020-10-15 06:56:18,097 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_wait_cmd_msg [2020-10-15 06:56:18,097 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_send_cmd [2020-10-15 06:56:18,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-15 06:56:18,097 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_open [2020-10-15 06:56:18,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-15 06:56:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_close [2020-10-15 06:56:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_version [2020-10-15 06:56:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_set_mode [2020-10-15 06:56:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_rx_err_msg [2020-10-15 06:56:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_rx_can_msg [2020-10-15 06:56:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_read_bulk_callback [2020-10-15 06:56:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_write_bulk_callback [2020-10-15 06:56:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_start_xmit [2020-10-15 06:56:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_get_berr_counter [2020-10-15 06:56:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_start [2020-10-15 06:56:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_open [2020-10-15 06:56:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2020-10-15 06:56:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_close [2020-10-15 06:56:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_probe [2020-10-15 06:56:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_disconnect [2020-10-15 06:56:18,100 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_driver_init [2020-10-15 06:56:18,100 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_driver_exit [2020-10-15 06:56:18,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-10-15 06:56:18,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-10-15 06:56:18,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-15 06:56:18,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-15 06:56:18,100 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 06:56:18,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-15 06:56:18,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-15 06:56:18,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-15 06:56:18,101 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-15 06:56:18,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-15 06:56:18,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-15 06:56:18,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-15 06:56:18,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-15 06:56:18,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-15 06:56:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-15 06:56:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-15 06:56:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-15 06:56:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 06:56:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-15 06:56:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-15 06:56:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 06:56:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 06:56:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-15 06:56:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-15 06:56:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-15 06:56:19,407 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-15 06:56:24,004 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-15 06:56:24,809 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 06:56:24,809 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 06:56:24,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:56:24 BoogieIcfgContainer [2020-10-15 06:56:24,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 06:56:24,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 06:56:24,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 06:56:24,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 06:56:24,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:56:14" (1/3) ... [2020-10-15 06:56:24,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3641ed82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:56:24, skipping insertion in model container [2020-10-15 06:56:24,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:17" (2/3) ... [2020-10-15 06:56:24,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3641ed82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:56:24, skipping insertion in model container [2020-10-15 06:56:24,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:56:24" (3/3) ... [2020-10-15 06:56:24,837 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2020-10-15 06:56:24,849 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 06:56:24,860 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 06:56:24,874 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 06:56:24,906 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 06:56:24,906 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 06:56:24,906 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 06:56:24,906 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 06:56:24,907 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 06:56:24,907 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 06:56:24,907 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 06:56:24,907 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 06:56:24,960 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states. [2020-10-15 06:56:24,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-15 06:56:24,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:56:24,978 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-15 06:56:24,978 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:56:24,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:56:24,985 INFO L82 PathProgramCache]: Analyzing trace with hash 228599628, now seen corresponding path program 1 times [2020-10-15 06:56:24,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:56:24,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549823196] [2020-10-15 06:56:24,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:56:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:56:25,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:26,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:28,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:56:28,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-15 06:56:28,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:56:28,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2729 [2020-10-15 06:56:28,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:56:28,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:56:28,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 06:56:28,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:56:28,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-15 06:56:28,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 06:56:29,311 WARN L193 SmtUtils]: Spent 913.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-15 06:56:29,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:56:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:56:29,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:29,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:56:29,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:56:29,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:56:29,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 368 [2020-10-15 06:56:29,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:56:29,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:56:29,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:56:29,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:56:29,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:56:29,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:56:29,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:56:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:56:29,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:29,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:56:29,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:56:29,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:56:29,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-15 06:56:29,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:56:29,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:56:29,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:56:29,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:56:29,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:56:29,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:56:29,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:56:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:56:29,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:29,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:56:29,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:56:29,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:56:29,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 06:56:29,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:56:29,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:56:29,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:56:29,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:56:29,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:56:29,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 06:56:29,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 06:56:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:56:29,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:29,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:56:29,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:56:29,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:56:29,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 06:56:29,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:56:29,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:56:29,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:56:29,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:56:29,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:56:29,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:56:29,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 06:56:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:56:30,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:30,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:56:30,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 06:56:30,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:56:30,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-15 06:56:30,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:56:30,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:56:30,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:56:30,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:56:30,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 06:56:30,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:56:30,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:56:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:56:30,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:30,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:56:30,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 06:56:30,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:56:30,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 06:56:30,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:56:30,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:56:30,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:56:30,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:56:30,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:56:30,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:56:30,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:56:30,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:56:30,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:30,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:56:30,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:56:30,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:56:30,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 06:56:30,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:56:30,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:56:30,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:56:30,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:56:30,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:56:30,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:56:30,127 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 06:56:30,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549823196] [2020-10-15 06:56:30,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:56:30,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 06:56:30,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27515254] [2020-10-15 06:56:30,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 06:56:30,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:56:30,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 06:56:30,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 06:56:30,159 INFO L87 Difference]: Start difference. First operand 996 states. Second operand 6 states. [2020-10-15 06:56:35,790 WARN L193 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 379 [2020-10-15 06:57:06,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:57:06,441 INFO L93 Difference]: Finished difference Result 3419 states and 4628 transitions. [2020-10-15 06:57:06,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 06:57:06,444 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2020-10-15 06:57:06,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:57:06,488 INFO L225 Difference]: With dead ends: 3419 [2020-10-15 06:57:06,488 INFO L226 Difference]: Without dead ends: 2422 [2020-10-15 06:57:06,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-15 06:57:06,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2422 states. [2020-10-15 06:57:07,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2422 to 1960. [2020-10-15 06:57:07,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1960 states. [2020-10-15 06:57:07,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1960 states to 1960 states and 2474 transitions. [2020-10-15 06:57:07,135 INFO L78 Accepts]: Start accepts. Automaton has 1960 states and 2474 transitions. Word has length 45 [2020-10-15 06:57:07,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:57:07,137 INFO L479 AbstractCegarLoop]: Abstraction has 1960 states and 2474 transitions. [2020-10-15 06:57:07,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 06:57:07,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1960 states and 2474 transitions. [2020-10-15 06:57:07,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-15 06:57:07,148 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:57:07,149 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-15 06:57:07,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 06:57:07,149 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:57:07,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:57:07,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1503927421, now seen corresponding path program 1 times [2020-10-15 06:57:07,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:57:07,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1745399663] [2020-10-15 06:57:07,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:57:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:07,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:07,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:08,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:08,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-15 06:57:08,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:57:08,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 764 [2020-10-15 06:57:08,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:08,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:08,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:57:08,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:57:08,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-15 06:57:08,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:08,789 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-15 06:57:08,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:57:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:08,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:09,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:09,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:57:09,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:09,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-15 06:57:09,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:09,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:09,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:57:09,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:09,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:57:09,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:09,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:57:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:09,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:09,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:09,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:57:09,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:09,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 06:57:09,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:09,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:09,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:57:09,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:09,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:57:09,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:09,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:57:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:09,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:09,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:09,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:57:09,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:09,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 06:57:09,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:09,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:09,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:57:09,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:09,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:57:09,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:09,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 06:57:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:09,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:09,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:09,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:57:09,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:09,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 06:57:09,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:09,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:09,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:57:09,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:09,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:57:09,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:09,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 06:57:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:09,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:09,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:09,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 06:57:09,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:09,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 06:57:09,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:09,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:09,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:57:09,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:09,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 06:57:09,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:09,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:57:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:09,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:09,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:09,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 06:57:09,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:09,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 06:57:09,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:09,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:09,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:09,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:09,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:09,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:09,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:57:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:09,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:09,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:09,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:57:09,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:09,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 06:57:09,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:09,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:09,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:09,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:09,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:09,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:09,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 06:57:09,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1745399663] [2020-10-15 06:57:09,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:57:09,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 06:57:09,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494976976] [2020-10-15 06:57:09,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 06:57:09,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:57:09,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 06:57:09,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 06:57:09,348 INFO L87 Difference]: Start difference. First operand 1960 states and 2474 transitions. Second operand 6 states. [2020-10-15 06:57:14,822 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 379 [2020-10-15 06:57:31,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:57:31,777 INFO L93 Difference]: Finished difference Result 2414 states and 3204 transitions. [2020-10-15 06:57:31,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 06:57:31,778 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2020-10-15 06:57:31,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:57:31,794 INFO L225 Difference]: With dead ends: 2414 [2020-10-15 06:57:31,794 INFO L226 Difference]: Without dead ends: 2411 [2020-10-15 06:57:31,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-15 06:57:31,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2411 states. [2020-10-15 06:57:32,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2411 to 1959. [2020-10-15 06:57:32,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2020-10-15 06:57:32,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 2472 transitions. [2020-10-15 06:57:32,165 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 2472 transitions. Word has length 46 [2020-10-15 06:57:32,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:57:32,166 INFO L479 AbstractCegarLoop]: Abstraction has 1959 states and 2472 transitions. [2020-10-15 06:57:32,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 06:57:32,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 2472 transitions. [2020-10-15 06:57:32,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-15 06:57:32,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:57:32,168 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-15 06:57:32,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 06:57:32,168 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:57:32,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:57:32,169 INFO L82 PathProgramCache]: Analyzing trace with hash 622313775, now seen corresponding path program 1 times [2020-10-15 06:57:32,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:57:32,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834583698] [2020-10-15 06:57:32,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:57:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:32,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:32,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:32,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:32,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 06:57:32,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:57:32,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 758 [2020-10-15 06:57:32,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:32,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:32,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:57:32,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:57:32,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-15 06:57:32,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:33,730 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-15 06:57:33,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:57:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:33,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:33,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:33,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:57:33,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:33,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-15 06:57:33,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:33,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:33,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:57:33,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:33,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:57:33,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:34,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:57:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:34,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:34,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:34,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:57:34,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:34,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 06:57:34,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:34,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:34,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:57:34,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:34,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:57:34,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:34,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:57:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:34,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:34,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:34,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:57:34,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:34,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 06:57:34,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:34,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:34,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:57:34,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:34,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:57:34,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:34,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 06:57:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:34,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:34,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:34,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:57:34,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:34,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:57:34,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:34,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:34,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:57:34,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:34,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:57:34,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:34,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 06:57:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:34,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:34,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:34,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 06:57:34,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:34,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 06:57:34,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:34,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:34,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:57:34,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:34,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 06:57:34,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:34,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:57:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:34,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:34,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:34,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 06:57:34,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:34,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 06:57:34,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:34,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:34,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:34,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:34,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:34,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:34,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:57:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:34,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:34,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:34,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:57:34,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:34,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:57:34,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:34,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:34,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:34,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:34,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:34,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:34,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 06:57:34,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834583698] [2020-10-15 06:57:34,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:57:34,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 06:57:34,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400991299] [2020-10-15 06:57:34,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 06:57:34,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:57:34,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 06:57:34,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 06:57:34,249 INFO L87 Difference]: Start difference. First operand 1959 states and 2472 transitions. Second operand 6 states. [2020-10-15 06:57:39,316 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-15 06:57:55,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:57:55,586 INFO L93 Difference]: Finished difference Result 2413 states and 3202 transitions. [2020-10-15 06:57:55,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 06:57:55,587 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2020-10-15 06:57:55,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:57:55,600 INFO L225 Difference]: With dead ends: 2413 [2020-10-15 06:57:55,601 INFO L226 Difference]: Without dead ends: 2410 [2020-10-15 06:57:55,602 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-15 06:57:55,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2410 states. [2020-10-15 06:57:55,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2410 to 1958. [2020-10-15 06:57:55,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1958 states. [2020-10-15 06:57:55,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1958 states to 1958 states and 2470 transitions. [2020-10-15 06:57:55,975 INFO L78 Accepts]: Start accepts. Automaton has 1958 states and 2470 transitions. Word has length 47 [2020-10-15 06:57:55,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:57:55,975 INFO L479 AbstractCegarLoop]: Abstraction has 1958 states and 2470 transitions. [2020-10-15 06:57:55,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 06:57:55,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1958 states and 2470 transitions. [2020-10-15 06:57:55,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-15 06:57:55,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:57:55,977 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-15 06:57:55,978 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 06:57:55,978 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:57:55,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:57:55,978 INFO L82 PathProgramCache]: Analyzing trace with hash 2111286278, now seen corresponding path program 1 times [2020-10-15 06:57:55,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:57:55,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979526416] [2020-10-15 06:57:55,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:57:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:56,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:56,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:56,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:56,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-15 06:57:56,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:57:56,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 783 [2020-10-15 06:57:56,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:56,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:56,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:57:56,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:57:56,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 06:57:56,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:57,559 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-15 06:57:57,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:57:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:57,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:57,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:57,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:57:57,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:57,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-15 06:57:57,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:57,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:57,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:57:57,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:57,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:57:57,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:57,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:57:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:57,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:57,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:57,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:57:57,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:57,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 06:57:57,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:57,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:57,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:57:57,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:57,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:57:57,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:57,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:57:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:57,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:57,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:57,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:57:57,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:57,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 06:57:57,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:57,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:57,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:57:57,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:57,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:57:57,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:57,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 06:57:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:57,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:57,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:57,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:57:57,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:57,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 06:57:57,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:57,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:57,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:57:57,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:57,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:57:57,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:57,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 06:57:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:57,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:57,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:57,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 06:57:57,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:57,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 06:57:57,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:57,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:57,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:57:57,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:57,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 06:57:57,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:58,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:57:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:58,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:58,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:58,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 06:57:58,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:58,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 06:57:58,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:58,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:58,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:58,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:58,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:58,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:58,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:57:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:58,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:58,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:58,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:57:58,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:58,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 06:57:58,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:58,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:58,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:58,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:58,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:58,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:58,060 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 06:57:58,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1979526416] [2020-10-15 06:57:58,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:57:58,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 06:57:58,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241823326] [2020-10-15 06:57:58,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 06:57:58,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:57:58,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 06:57:58,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 06:57:58,063 INFO L87 Difference]: Start difference. First operand 1958 states and 2470 transitions. Second operand 6 states. [2020-10-15 06:58:04,087 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-15 06:58:24,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:58:24,209 INFO L93 Difference]: Finished difference Result 2412 states and 3200 transitions. [2020-10-15 06:58:24,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 06:58:24,210 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2020-10-15 06:58:24,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:58:24,224 INFO L225 Difference]: With dead ends: 2412 [2020-10-15 06:58:24,224 INFO L226 Difference]: Without dead ends: 2409 [2020-10-15 06:58:24,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-15 06:58:24,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2409 states. [2020-10-15 06:58:24,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2409 to 1957. [2020-10-15 06:58:24,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1957 states. [2020-10-15 06:58:24,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1957 states to 1957 states and 2468 transitions. [2020-10-15 06:58:24,680 INFO L78 Accepts]: Start accepts. Automaton has 1957 states and 2468 transitions. Word has length 48 [2020-10-15 06:58:24,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:58:24,680 INFO L479 AbstractCegarLoop]: Abstraction has 1957 states and 2468 transitions. [2020-10-15 06:58:24,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 06:58:24,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1957 states and 2468 transitions. [2020-10-15 06:58:24,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-15 06:58:24,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:58:24,683 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-15 06:58:24,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 06:58:24,684 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:58:24,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:58:24,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1024798482, now seen corresponding path program 1 times [2020-10-15 06:58:24,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:58:24,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [822252882] [2020-10-15 06:58:24,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:58:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:24,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:25,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:25,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:25,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-15 06:58:25,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:58:25,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 676 [2020-10-15 06:58:25,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:25,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:25,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:25,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:58:25,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 06:58:25,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:26,217 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-15 06:58:26,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:58:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:26,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:26,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:26,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:58:26,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:26,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-15 06:58:26,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:26,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:26,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:26,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:26,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:58:26,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:26,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:58:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:26,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:26,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:26,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:58:26,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:26,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 06:58:26,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:26,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:26,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:26,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:26,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:58:26,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:26,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:58:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:26,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:26,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:26,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:58:26,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:26,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 06:58:26,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:26,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:26,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:26,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:26,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:58:26,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:26,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 06:58:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:26,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:26,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:26,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:58:26,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:26,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:58:26,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:26,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:26,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:26,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:26,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:58:26,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:26,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 06:58:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:26,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:26,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:26,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 06:58:26,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:26,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 06:58:26,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:26,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:26,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:26,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:26,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 06:58:26,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:26,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:58:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:26,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:26,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:26,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 06:58:26,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:26,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 06:58:26,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:26,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:26,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:26,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:26,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:26,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:26,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:58:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:26,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:26,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:26,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:58:26,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:26,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:58:26,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:26,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:26,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:26,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:26,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:26,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:26,639 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 06:58:26,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [822252882] [2020-10-15 06:58:26,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:58:26,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 06:58:26,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625332665] [2020-10-15 06:58:26,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 06:58:26,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:58:26,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 06:58:26,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 06:58:26,641 INFO L87 Difference]: Start difference. First operand 1957 states and 2468 transitions. Second operand 6 states. [2020-10-15 06:58:32,839 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-15 06:58:49,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:58:49,398 INFO L93 Difference]: Finished difference Result 2411 states and 3198 transitions. [2020-10-15 06:58:49,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 06:58:49,399 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-10-15 06:58:49,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:58:49,413 INFO L225 Difference]: With dead ends: 2411 [2020-10-15 06:58:49,413 INFO L226 Difference]: Without dead ends: 2386 [2020-10-15 06:58:49,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-15 06:58:49,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2386 states. [2020-10-15 06:58:49,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2386 to 1937. [2020-10-15 06:58:49,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1937 states. [2020-10-15 06:58:49,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1937 states to 1937 states and 2445 transitions. [2020-10-15 06:58:49,735 INFO L78 Accepts]: Start accepts. Automaton has 1937 states and 2445 transitions. Word has length 49 [2020-10-15 06:58:49,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:58:49,735 INFO L479 AbstractCegarLoop]: Abstraction has 1937 states and 2445 transitions. [2020-10-15 06:58:49,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 06:58:49,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1937 states and 2445 transitions. [2020-10-15 06:58:49,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-15 06:58:49,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:58:49,740 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-15 06:58:49,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 06:58:49,741 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:58:49,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:58:49,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1244818475, now seen corresponding path program 1 times [2020-10-15 06:58:49,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:58:49,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597952231] [2020-10-15 06:58:49,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:58:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:49,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:50,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:50,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:50,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:54,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:54,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-15 06:58:54,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 06:58:54,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5097 [2020-10-15 06:58:54,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:54,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:54,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 06:58:54,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-15 06:58:54,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 06:58:54,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:55,760 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-15 06:58:55,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:58:55,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:55,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:55,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:55,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:58:55,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:55,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-15 06:58:55,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:55,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:55,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:55,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:58:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:55,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:55,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:55,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:58:55,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:55,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 06:58:55,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:55,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:55,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:55,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:55,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:55,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:55,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:58:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:55,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:55,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:55,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:58:55,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:55,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 06:58:55,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:55,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:55,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:55,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:55,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 06:58:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:55,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:55,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:55,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:58:55,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:55,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:58:55,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:55,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:55,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:56,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 06:58:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:56,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:56,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:56,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:58,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:58,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-15 06:58:58,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 06:58:58,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2631 [2020-10-15 06:58:58,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:58,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:58,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 06:58:58,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-15 06:58:58,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 06:58:58,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:58,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:58:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:58,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:58,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:58,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:58:58,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:58,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 06:58:58,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:58,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:58,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:58,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:58,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:58,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:58,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:58:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:58,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:58,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:58,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 06:58:58,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:58,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 06:58:58,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:58,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:58,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:58,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:58,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:58,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:58,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 06:58:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:58,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:58,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:58,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:58:58,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:58,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:58:58,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:58,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:58,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:58,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:58,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:58,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:58,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-15 06:58:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:58,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:58,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:58,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 06:58:58,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:58,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 06:58:58,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:58,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:58,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 06:58:58,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 06:58:58,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 06:58:58,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:58,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:58:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:58,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:58,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:58,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 06:58:58,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:58,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-15 06:58:58,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:58,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:58,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 06:58:58,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 06:58:58,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 06:58:58,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 06:58:59,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:58:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:59,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:59,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:59,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:58:59,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:59,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 06:58:59,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:59,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:59,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 06:58:59,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:59,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 06:58:59,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:59,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 06:58:59,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:59,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:59,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:59,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:58:59,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:59,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 06:58:59,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:59,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:59,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:59,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:59,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 06:58:59,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:59,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 06:58:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:59,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:59,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:59,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:58:59,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:59,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:58:59,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:59,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:59,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:59,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:58:59,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:59,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:59,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-15 06:58:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:59,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:59,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:59,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 06:58:59,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:59,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 06:58:59,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:59,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:59,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:59,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 06:58:59,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:59,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:59,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:58:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:59,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:59,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:59,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 06:58:59,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:59,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:58:59,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:59,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:59,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:59,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:59,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:59,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:59,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:58:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:59,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:59,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:59,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:58:59,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:59,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:58:59,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:59,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:59,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:59,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:59,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:59,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:59,318 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 06:58:59,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1597952231] [2020-10-15 06:58:59,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:58:59,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 06:58:59,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484942534] [2020-10-15 06:58:59,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 06:58:59,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:58:59,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 06:58:59,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-15 06:58:59,322 INFO L87 Difference]: Start difference. First operand 1937 states and 2445 transitions. Second operand 12 states. [2020-10-15 06:59:13,593 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 382 [2020-10-15 06:59:26,560 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 382 [2020-10-15 06:59:27,377 WARN L193 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 383 [2020-10-15 06:59:47,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:59:47,278 INFO L93 Difference]: Finished difference Result 4923 states and 6725 transitions. [2020-10-15 06:59:47,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 06:59:47,279 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 107 [2020-10-15 06:59:47,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:59:47,297 INFO L225 Difference]: With dead ends: 4923 [2020-10-15 06:59:47,298 INFO L226 Difference]: Without dead ends: 3000 [2020-10-15 06:59:47,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=153, Invalid=353, Unknown=0, NotChecked=0, Total=506 [2020-10-15 06:59:47,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2020-10-15 06:59:47,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 2190. [2020-10-15 06:59:47,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2190 states. [2020-10-15 06:59:47,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2190 states to 2190 states and 2845 transitions. [2020-10-15 06:59:47,885 INFO L78 Accepts]: Start accepts. Automaton has 2190 states and 2845 transitions. Word has length 107 [2020-10-15 06:59:47,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:59:47,885 INFO L479 AbstractCegarLoop]: Abstraction has 2190 states and 2845 transitions. [2020-10-15 06:59:47,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 06:59:47,885 INFO L276 IsEmpty]: Start isEmpty. Operand 2190 states and 2845 transitions. [2020-10-15 06:59:47,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-15 06:59:47,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:59:47,890 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-15 06:59:47,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 06:59:47,890 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:59:47,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:59:47,890 INFO L82 PathProgramCache]: Analyzing trace with hash -722416576, now seen corresponding path program 1 times [2020-10-15 06:59:47,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:59:47,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270814814] [2020-10-15 06:59:47,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:59:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:48,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:48,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:48,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:48,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:53,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:53,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-15 06:59:53,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 06:59:53,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5117 [2020-10-15 06:59:53,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:53,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:53,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:53,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-15 06:59:53,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 06:59:53,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:53,927 WARN L193 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-15 06:59:53,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:59:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:53,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:54,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:54,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:54,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:54,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-15 06:59:54,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:54,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:54,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:54,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:54,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:54,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:54,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:59:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:54,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:54,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:54,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:59:54,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:54,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 06:59:54,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:54,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:54,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:54,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:54,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:54,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:59:54,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:59:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:54,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:54,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:54,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:59:54,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:54,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:59:54,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:54,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:54,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:54,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:54,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:54,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:54,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 06:59:54,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:54,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:54,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:54,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:59:54,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:54,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:59:54,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:54,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:54,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:54,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:54,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:54,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:59:54,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 06:59:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:54,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:54,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:54,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:55,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:55,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-15 06:59:55,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 06:59:55,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 943 [2020-10-15 06:59:55,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:55,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:55,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 06:59:55,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-15 06:59:55,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 06:59:55,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:59:55,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:59:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:55,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:55,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:55,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:55,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:55,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:59:55,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:55,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:55,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:55,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:55,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:55,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:55,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:59:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:55,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:55,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:55,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 06:59:55,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:55,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 06:59:55,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:55,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:55,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:55,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:55,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:55,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:55,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 06:59:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:55,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:55,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:55,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:55,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:55,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 06:59:55,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:55,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:55,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:55,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:55,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:55,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:55,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-15 06:59:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:55,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:55,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:55,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 06:59:55,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:55,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-15 06:59:55,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:55,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:55,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 06:59:55,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:55,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 06:59:55,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:59:55,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:59:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:55,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:55,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:55,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-15 06:59:55,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:55,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-15 06:59:55,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:55,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:55,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 06:59:55,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:55,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-15 06:59:55,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:59:55,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:59:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:55,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:55,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:55,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 06:59:55,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:55,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 06:59:55,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:55,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:55,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:55,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:55,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:55,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:55,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 06:59:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:55,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:55,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:55,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:59:55,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:55,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 06:59:55,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:55,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:55,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:55,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:55,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:55,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:55,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-15 06:59:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:55,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:55,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:55,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:55,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:55,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:59:55,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:55,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:55,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:55,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:55,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:55,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:55,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-15 06:59:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:55,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:55,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:55,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:55,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:55,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:59:55,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:55,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:55,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:55,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:59:55,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:55,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:59:55,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-15 06:59:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:55,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:55,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:55,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 06:59:55,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:55,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 06:59:55,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:55,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:55,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:55,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 06:59:55,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:55,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:55,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:59:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:55,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:55,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:55,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 06:59:55,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:55,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:59:55,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:55,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:55,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:55,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:55,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:55,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:59:55,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:59:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:55,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:55,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:55,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:55,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:55,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:59:55,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:55,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:55,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:55,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:55,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:55,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:55,993 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 06:59:55,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270814814] [2020-10-15 06:59:55,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:59:55,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-15 06:59:55,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820038686] [2020-10-15 06:59:55,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 06:59:55,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:59:55,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 06:59:55,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-10-15 06:59:55,997 INFO L87 Difference]: Start difference. First operand 2190 states and 2845 transitions. Second operand 16 states.