/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 05:39:02,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 05:39:02,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 05:39:02,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 05:39:02,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 05:39:02,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 05:39:02,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 05:39:02,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 05:39:02,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 05:39:02,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 05:39:02,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 05:39:02,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 05:39:02,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 05:39:02,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 05:39:02,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 05:39:02,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 05:39:02,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 05:39:02,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 05:39:02,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 05:39:02,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 05:39:02,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 05:39:02,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 05:39:02,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 05:39:02,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 05:39:02,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 05:39:02,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 05:39:02,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 05:39:02,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 05:39:02,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 05:39:02,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 05:39:02,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 05:39:02,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 05:39:02,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 05:39:02,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 05:39:02,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 05:39:02,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 05:39:02,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 05:39:02,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 05:39:02,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 05:39:02,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 05:39:02,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 05:39:02,164 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 05:39:02,208 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 05:39:02,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 05:39:02,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 05:39:02,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 05:39:02,215 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 05:39:02,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 05:39:02,215 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 05:39:02,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 05:39:02,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 05:39:02,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 05:39:02,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 05:39:02,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 05:39:02,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 05:39:02,218 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 05:39:02,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 05:39:02,218 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 05:39:02,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 05:39:02,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 05:39:02,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 05:39:02,221 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 05:39:02,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 05:39:02,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:39:02,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 05:39:02,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 05:39:02,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 05:39:02,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 05:39:02,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 05:39:02,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 05:39:02,223 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 05:39:02,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 05:39:02,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 05:39:02,614 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 05:39:02,618 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 05:39:02,620 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 05:39:02,621 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 05:39:02,622 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-10-14 05:39:02,693 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfcc6a41e/40ad6b728e024a5bb1753c0c1ed3a113/FLAGb61ddf867 [2020-10-14 05:39:03,207 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 05:39:03,208 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-10-14 05:39:03,219 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfcc6a41e/40ad6b728e024a5bb1753c0c1ed3a113/FLAGb61ddf867 [2020-10-14 05:39:03,516 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfcc6a41e/40ad6b728e024a5bb1753c0c1ed3a113 [2020-10-14 05:39:03,527 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 05:39:03,530 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 05:39:03,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 05:39:03,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 05:39:03,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 05:39:03,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:39:03" (1/1) ... [2020-10-14 05:39:03,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30847a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:03, skipping insertion in model container [2020-10-14 05:39:03,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:39:03" (1/1) ... [2020-10-14 05:39:03,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 05:39:03,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 05:39:03,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:39:03,808 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 05:39:03,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:39:03,965 INFO L208 MainTranslator]: Completed translation [2020-10-14 05:39:03,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:03 WrapperNode [2020-10-14 05:39:03,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 05:39:03,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 05:39:03,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 05:39:03,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 05:39:03,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:03" (1/1) ... [2020-10-14 05:39:03,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:03" (1/1) ... [2020-10-14 05:39:03,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:03" (1/1) ... [2020-10-14 05:39:03,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:03" (1/1) ... [2020-10-14 05:39:04,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:03" (1/1) ... [2020-10-14 05:39:04,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:03" (1/1) ... [2020-10-14 05:39:04,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:03" (1/1) ... [2020-10-14 05:39:04,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 05:39:04,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 05:39:04,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 05:39:04,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 05:39:04,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:03" (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 [2020-10-14 05:39:04,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 05:39:04,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 05:39:04,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 05:39:04,075 INFO L138 BoogieDeclarations]: Found implementation of procedure r_strncpy [2020-10-14 05:39:04,075 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2020-10-14 05:39:04,075 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 05:39:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 05:39:04,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 05:39:04,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 05:39:04,076 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2020-10-14 05:39:04,076 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-10-14 05:39:04,076 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2020-10-14 05:39:04,076 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-10-14 05:39:04,076 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy_ptr [2020-10-14 05:39:04,076 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-14 05:39:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-14 05:39:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2020-10-14 05:39:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-14 05:39:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2020-10-14 05:39:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-14 05:39:04,078 INFO L130 BoogieDeclarations]: Found specification of procedure isascii [2020-10-14 05:39:04,079 INFO L130 BoogieDeclarations]: Found specification of procedure isspace [2020-10-14 05:39:04,079 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-10-14 05:39:04,079 INFO L130 BoogieDeclarations]: Found specification of procedure strrand [2020-10-14 05:39:04,079 INFO L130 BoogieDeclarations]: Found specification of procedure istrrand [2020-10-14 05:39:04,081 INFO L130 BoogieDeclarations]: Found specification of procedure istrchr [2020-10-14 05:39:04,081 INFO L130 BoogieDeclarations]: Found specification of procedure istrrchr [2020-10-14 05:39:04,081 INFO L130 BoogieDeclarations]: Found specification of procedure istrncmp [2020-10-14 05:39:04,082 INFO L130 BoogieDeclarations]: Found specification of procedure istrstr [2020-10-14 05:39:04,082 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncpy [2020-10-14 05:39:04,082 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcpy [2020-10-14 05:39:04,082 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcat [2020-10-14 05:39:04,082 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncat [2020-10-14 05:39:04,082 INFO L130 BoogieDeclarations]: Found specification of procedure r_memcpy [2020-10-14 05:39:04,082 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2020-10-14 05:39:04,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 05:39:04,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 05:39:04,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 05:39:04,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 05:39:04,085 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 05:39:04,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 05:39:04,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 05:39:04,510 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 05:39:04,511 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-14 05:39:04,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:39:04 BoogieIcfgContainer [2020-10-14 05:39:04,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 05:39:04,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 05:39:04,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 05:39:04,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 05:39:04,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:39:03" (1/3) ... [2020-10-14 05:39:04,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73fec4ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:39:04, skipping insertion in model container [2020-10-14 05:39:04,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:39:03" (2/3) ... [2020-10-14 05:39:04,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73fec4ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:39:04, skipping insertion in model container [2020-10-14 05:39:04,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:39:04" (3/3) ... [2020-10-14 05:39:04,524 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-10-14 05:39:04,533 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 05:39:04,542 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 05:39:04,555 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 05:39:04,583 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 05:39:04,583 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 05:39:04,583 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 05:39:04,584 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 05:39:04,584 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 05:39:04,584 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 05:39:04,584 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 05:39:04,584 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 05:39:04,606 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-10-14 05:39:04,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-14 05:39:04,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:39:04,616 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:39:04,616 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:39:04,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:39:04,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1663477819, now seen corresponding path program 1 times [2020-10-14 05:39:04,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:39:04,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1810048505] [2020-10-14 05:39:04,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:39:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:04,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:04,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:04,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:04,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:05,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:05,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:06,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:06,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:08,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:08,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 05:39:08,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 05:39:08,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3900 [2020-10-14 05:39:08,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:08,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:08,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:39:08,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 05:39:08,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:39:08,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 05:39:08,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:39:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:08,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:08,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:08,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:39:08,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:08,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 05:39:08,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:08,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:08,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:39:08,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:39:08,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:39:08,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:39:08,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 05:39:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:08,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:08,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:08,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:39:08,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:08,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 05:39:08,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:08,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:08,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:39:08,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 05:39:08,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:39:08,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:39:08,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:39:08,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1810048505] [2020-10-14 05:39:08,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:39:08,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 05:39:08,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578185144] [2020-10-14 05:39:08,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 05:39:08,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:39:08,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 05:39:08,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 05:39:08,857 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 3 states. [2020-10-14 05:39:09,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:39:09,106 INFO L93 Difference]: Finished difference Result 102 states and 138 transitions. [2020-10-14 05:39:09,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 05:39:09,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-10-14 05:39:09,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:39:09,125 INFO L225 Difference]: With dead ends: 102 [2020-10-14 05:39:09,125 INFO L226 Difference]: Without dead ends: 47 [2020-10-14 05:39:09,130 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 05:39:09,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-14 05:39:09,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-14 05:39:09,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-14 05:39:09,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2020-10-14 05:39:09,212 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 32 [2020-10-14 05:39:09,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:39:09,214 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2020-10-14 05:39:09,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 05:39:09,214 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2020-10-14 05:39:09,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-14 05:39:09,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:39:09,219 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:39:09,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 05:39:09,220 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:39:09,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:39:09,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1140955694, now seen corresponding path program 1 times [2020-10-14 05:39:09,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:39:09,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392316215] [2020-10-14 05:39:09,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:39:09,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:09,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:09,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:09,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:09,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:09,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:09,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:09,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:09,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:09,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:09,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:10,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:13,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:14,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:14,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-14 05:39:14,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 05:39:14,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 05:39:14,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:14,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:14,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:39:14,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 05:39:14,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 05:39:14,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:39:14,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:39:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:14,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:14,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:14,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:39:14,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:14,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:39:14,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:14,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:14,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:39:14,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:39:14,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:39:14,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:39:14,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 05:39:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:14,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:14,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:14,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:39:14,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:14,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:39:14,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:14,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:14,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:39:14,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 05:39:14,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:39:14,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:39:14,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:39:14,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392316215] [2020-10-14 05:39:14,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:39:14,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 05:39:14,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936586592] [2020-10-14 05:39:14,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 05:39:14,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:39:14,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 05:39:14,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:39:14,304 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand 4 states. [2020-10-14 05:39:14,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:39:14,441 INFO L93 Difference]: Finished difference Result 83 states and 103 transitions. [2020-10-14 05:39:14,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 05:39:14,442 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-10-14 05:39:14,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:39:14,444 INFO L225 Difference]: With dead ends: 83 [2020-10-14 05:39:14,444 INFO L226 Difference]: Without dead ends: 48 [2020-10-14 05:39:14,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:39:14,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-14 05:39:14,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-14 05:39:14,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-14 05:39:14,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2020-10-14 05:39:14,456 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 36 [2020-10-14 05:39:14,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:39:14,456 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2020-10-14 05:39:14,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 05:39:14,457 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2020-10-14 05:39:14,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-14 05:39:14,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:39:14,458 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:39:14,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 05:39:14,459 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:39:14,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:39:14,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1359810412, now seen corresponding path program 1 times [2020-10-14 05:39:14,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:39:14,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [670217544] [2020-10-14 05:39:14,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:39:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:14,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:14,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:14,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:14,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:14,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:14,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:14,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:14,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:16,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:16,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:16,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:16,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:19,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:19,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-14 05:39:19,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 05:39:19,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 05:39:19,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:19,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:19,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:39:19,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:39:19,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 05:39:19,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:39:19,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:39:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:19,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:19,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:19,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:39:19,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:19,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:39:19,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:19,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:19,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:39:19,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:39:19,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:39:19,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:39:19,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 05:39:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:19,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:19,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:19,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:39:19,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:19,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 05:39:19,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:19,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:19,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:39:19,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 05:39:19,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:39:19,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 05:39:19,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:39:19,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [670217544] [2020-10-14 05:39:19,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:39:19,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 05:39:19,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702989642] [2020-10-14 05:39:19,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 05:39:19,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:39:19,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 05:39:19,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:39:19,546 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand 4 states. [2020-10-14 05:39:19,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:39:19,750 INFO L93 Difference]: Finished difference Result 90 states and 110 transitions. [2020-10-14 05:39:19,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 05:39:19,751 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-10-14 05:39:19,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:39:19,753 INFO L225 Difference]: With dead ends: 90 [2020-10-14 05:39:19,753 INFO L226 Difference]: Without dead ends: 50 [2020-10-14 05:39:19,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:39:19,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-14 05:39:19,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2020-10-14 05:39:19,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-14 05:39:19,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2020-10-14 05:39:19,764 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 36 [2020-10-14 05:39:19,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:39:19,765 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2020-10-14 05:39:19,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 05:39:19,765 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2020-10-14 05:39:19,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-14 05:39:19,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:39:19,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:39:19,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 05:39:19,767 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:39:19,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:39:19,768 INFO L82 PathProgramCache]: Analyzing trace with hash 446687854, now seen corresponding path program 1 times [2020-10-14 05:39:19,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:39:19,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [992978176] [2020-10-14 05:39:19,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:39:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:19,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:19,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:19,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:19,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:19,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:20,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:20,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:20,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:22,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:22,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:22,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:22,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:24,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:24,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 05:39:24,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 05:39:24,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 05:39:24,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:24,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:24,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:39:24,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 05:39:24,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 05:39:24,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:39:24,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:39:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:24,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:24,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:24,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:39:24,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:24,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:39:24,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:24,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:24,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:39:24,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:39:24,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:39:24,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:39:24,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 05:39:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:39:24,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:39:24,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:39:24,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:39:24,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:39:24,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:39:24,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:39:24,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:39:24,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:39:24,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:39:24,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:39:24,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:39:24,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 05:39:24,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [992978176] [2020-10-14 05:39:24,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:39:24,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 05:39:24,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081099071] [2020-10-14 05:39:24,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:39:24,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:39:24,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:39:24,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:39:24,862 INFO L87 Difference]: Start difference. First operand 49 states and 59 transitions. Second operand 6 states. [2020-10-14 05:39:25,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:39:25,064 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2020-10-14 05:39:25,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 05:39:25,065 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-10-14 05:39:25,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:39:25,065 INFO L225 Difference]: With dead ends: 61 [2020-10-14 05:39:25,065 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 05:39:25,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:39:25,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 05:39:25,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 05:39:25,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 05:39:25,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 05:39:25,068 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2020-10-14 05:39:25,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:39:25,070 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 05:39:25,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:39:25,070 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 05:39:25,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 05:39:25,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 05:39:25,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 05:39:25,168 INFO L268 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-14 05:39:25,169 INFO L268 CegarLoopResult]: For program point L60-2(line 60) no Hoare annotation was computed. [2020-10-14 05:39:25,169 INFO L268 CegarLoopResult]: For program point L60-4(lines 54 72) no Hoare annotation was computed. [2020-10-14 05:39:25,169 INFO L268 CegarLoopResult]: For program point L56-1(line 56) no Hoare annotation was computed. [2020-10-14 05:39:25,169 INFO L268 CegarLoopResult]: For program point L56-3(line 56) no Hoare annotation was computed. [2020-10-14 05:39:25,170 INFO L271 CegarLoopResult]: At program point L56-5(line 56) the Hoare annotation is: true [2020-10-14 05:39:25,170 INFO L268 CegarLoopResult]: For program point L52-1(lines 52 73) no Hoare annotation was computed. [2020-10-14 05:39:25,170 INFO L268 CegarLoopResult]: For program point L56-6(line 56) no Hoare annotation was computed. [2020-10-14 05:39:25,170 INFO L268 CegarLoopResult]: For program point L52-2(lines 52 73) no Hoare annotation was computed. [2020-10-14 05:39:25,170 INFO L271 CegarLoopResult]: At program point L52-4(lines 52 73) the Hoare annotation is: true [2020-10-14 05:39:25,170 INFO L268 CegarLoopResult]: For program point L52-5(lines 52 73) no Hoare annotation was computed. [2020-10-14 05:39:25,170 INFO L264 CegarLoopResult]: At program point L65(line 65) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2020-10-14 05:39:25,172 INFO L268 CegarLoopResult]: For program point L65-1(line 65) no Hoare annotation was computed. [2020-10-14 05:39:25,172 INFO L268 CegarLoopResult]: For program point L61(lines 61 70) no Hoare annotation was computed. [2020-10-14 05:39:25,172 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-14 05:39:25,172 INFO L268 CegarLoopResult]: For program point L57-2(line 57) no Hoare annotation was computed. [2020-10-14 05:39:25,172 INFO L264 CegarLoopResult]: At program point L66(line 66) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2020-10-14 05:39:25,172 INFO L268 CegarLoopResult]: For program point L66-1(line 66) no Hoare annotation was computed. [2020-10-14 05:39:25,172 INFO L268 CegarLoopResult]: For program point parse_expression_listFINAL(lines 47 75) no Hoare annotation was computed. [2020-10-14 05:39:25,173 INFO L268 CegarLoopResult]: For program point L62(lines 62 64) no Hoare annotation was computed. [2020-10-14 05:39:25,173 INFO L264 CegarLoopResult]: At program point parse_expression_listENTRY(lines 47 75) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-10-14 05:39:25,173 INFO L268 CegarLoopResult]: For program point L54(lines 54 72) no Hoare annotation was computed. [2020-10-14 05:39:25,173 INFO L268 CegarLoopResult]: For program point parse_expression_listEXIT(lines 47 75) no Hoare annotation was computed. [2020-10-14 05:39:25,173 INFO L268 CegarLoopResult]: For program point L59-1(line 59) no Hoare annotation was computed. [2020-10-14 05:39:25,174 INFO L268 CegarLoopResult]: For program point L59-2(line 59) no Hoare annotation was computed. [2020-10-14 05:39:25,174 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-10-14 05:39:25,174 INFO L268 CegarLoopResult]: For program point L59-4(line 59) no Hoare annotation was computed. [2020-10-14 05:39:25,174 INFO L268 CegarLoopResult]: For program point L59-6(line 59) no Hoare annotation was computed. [2020-10-14 05:39:25,174 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-14 05:39:25,174 INFO L271 CegarLoopResult]: At program point L59-8(line 59) the Hoare annotation is: true [2020-10-14 05:39:25,174 INFO L268 CegarLoopResult]: For program point L59-9(line 59) no Hoare annotation was computed. [2020-10-14 05:39:25,174 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 05:39:25,175 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-14 05:39:25,175 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 05:39:25,175 INFO L268 CegarLoopResult]: For program point r_strncpyFINAL(line 31) no Hoare annotation was computed. [2020-10-14 05:39:25,175 INFO L268 CegarLoopResult]: For program point r_strncpyEXIT(line 31) no Hoare annotation was computed. [2020-10-14 05:39:25,175 INFO L271 CegarLoopResult]: At program point r_strncpyENTRY(line 31) the Hoare annotation is: true [2020-10-14 05:39:25,175 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 05:39:25,175 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-14 05:39:25,175 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 05:39:25,176 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 05:39:25,176 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 76 85) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-10-14 05:39:25,176 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 76 85) no Hoare annotation was computed. [2020-10-14 05:39:25,176 INFO L271 CegarLoopResult]: At program point L83(line 83) the Hoare annotation is: true [2020-10-14 05:39:25,176 INFO L268 CegarLoopResult]: For program point L83-1(line 83) no Hoare annotation was computed. [2020-10-14 05:39:25,176 INFO L268 CegarLoopResult]: For program point L79-2(lines 79 81) no Hoare annotation was computed. [2020-10-14 05:39:25,177 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 76 85) no Hoare annotation was computed. [2020-10-14 05:39:25,177 INFO L271 CegarLoopResult]: At program point L79-3(lines 79 81) the Hoare annotation is: true [2020-10-14 05:39:25,177 INFO L268 CegarLoopResult]: For program point L79-4(lines 79 81) no Hoare annotation was computed. [2020-10-14 05:39:25,177 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-10-14 05:39:25,177 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-10-14 05:39:25,177 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-10-14 05:39:25,177 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-10-14 05:39:25,178 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-10-14 05:39:25,178 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-10-14 05:39:25,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 05:39:25 BoogieIcfgContainer [2020-10-14 05:39:25,195 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 05:39:25,198 INFO L168 Benchmark]: Toolchain (without parser) took 21668.17 ms. Allocated memory was 147.3 MB in the beginning and 487.1 MB in the end (delta: 339.7 MB). Free memory was 103.4 MB in the beginning and 149.8 MB in the end (delta: -46.4 MB). Peak memory consumption was 293.3 MB. Max. memory is 7.1 GB. [2020-10-14 05:39:25,199 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-14 05:39:25,202 INFO L168 Benchmark]: CACSL2BoogieTranslator took 435.45 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 103.0 MB in the beginning and 179.9 MB in the end (delta: -76.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2020-10-14 05:39:25,203 INFO L168 Benchmark]: Boogie Preprocessor took 48.53 ms. Allocated memory is still 203.4 MB. Free memory was 179.9 MB in the beginning and 177.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-10-14 05:39:25,209 INFO L168 Benchmark]: RCFGBuilder took 500.41 ms. Allocated memory is still 203.4 MB. Free memory was 177.0 MB in the beginning and 147.8 MB in the end (delta: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. [2020-10-14 05:39:25,211 INFO L168 Benchmark]: TraceAbstraction took 20678.23 ms. Allocated memory was 203.4 MB in the beginning and 487.1 MB in the end (delta: 283.6 MB). Free memory was 147.8 MB in the beginning and 149.8 MB in the end (delta: -2.1 MB). Peak memory consumption was 281.6 MB. Max. memory is 7.1 GB. [2020-10-14 05:39:25,222 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 435.45 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 103.0 MB in the beginning and 179.9 MB in the end (delta: -76.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 48.53 ms. Allocated memory is still 203.4 MB. Free memory was 179.9 MB in the beginning and 177.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 500.41 ms. Allocated memory is still 203.4 MB. Free memory was 177.0 MB in the beginning and 147.8 MB in the end (delta: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20678.23 ms. Allocated memory was 203.4 MB in the beginning and 487.1 MB in the end (delta: 283.6 MB). Free memory was 147.8 MB in the beginning and 149.8 MB in the end (delta: -2.1 MB). Peak memory consumption was 281.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 79]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 213 SDtfs, 46 SDslu, 202 SDs, 0 SdLazy, 276 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 32 PreInvPairs, 41 NumberOfFragments, 35 HoareAnnotationTreeSize, 32 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 40 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 19.2s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 6758 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...