/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=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-c90d42b [2020-09-25 14:47:00,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:47:00,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:47:00,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:47:00,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:47:00,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:47:00,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:47:00,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:47:00,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:47:00,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:47:00,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:47:00,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:47:00,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:47:00,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:47:00,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:47:00,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:47:00,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:47:00,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:47:00,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:47:00,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:47:00,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:47:00,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:47:00,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:47:00,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:47:00,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:47:00,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:47:00,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:47:00,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:47:00,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:47:00,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:47:00,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:47:00,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:47:00,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:47:00,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:47:00,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:47:00,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:47:00,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:47:00,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:47:00,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:47:00,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:47:00,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:47:00,877 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 [2020-09-25 14:47:00,905 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:47:00,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:47:00,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:47:00,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:47:00,907 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:47:00,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:47:00,907 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:47:00,907 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:47:00,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:47:00,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:47:00,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:47:00,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:47:00,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:47:00,909 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:47:00,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:47:00,909 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:47:00,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:47:00,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:47:00,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:47:00,910 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:47:00,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:47:00,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:47:00,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:47:00,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:47:00,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:47:00,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:47:00,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:47:00,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:47:00,912 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:47:00,912 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 -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:47:01,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:47:01,423 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:47:01,427 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:47:01,429 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:47:01,430 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:47:01,431 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-09-25 14:47:01,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/306d5ab59/c0bce7e2299841858288acba81fb424e/FLAGf96f288cc [2020-09-25 14:47:02,111 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:47:02,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-09-25 14:47:02,121 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/306d5ab59/c0bce7e2299841858288acba81fb424e/FLAGf96f288cc [2020-09-25 14:47:02,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/306d5ab59/c0bce7e2299841858288acba81fb424e [2020-09-25 14:47:02,439 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:47:02,444 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:47:02,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:47:02,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:47:02,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:47:02,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:47:02" (1/1) ... [2020-09-25 14:47:02,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2362c63d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:02, skipping insertion in model container [2020-09-25 14:47:02,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:47:02" (1/1) ... [2020-09-25 14:47:02,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:47:02,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:47:02,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:47:02,842 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:47:02,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:47:03,000 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:47:03,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:03 WrapperNode [2020-09-25 14:47:03,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:47:03,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:47:03,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:47:03,002 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:47:03,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:03" (1/1) ... [2020-09-25 14:47:03,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:03" (1/1) ... [2020-09-25 14:47:03,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:03" (1/1) ... [2020-09-25 14:47:03,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:03" (1/1) ... [2020-09-25 14:47:03,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:03" (1/1) ... [2020-09-25 14:47:03,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:03" (1/1) ... [2020-09-25 14:47:03,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:03" (1/1) ... [2020-09-25 14:47:03,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:47:03,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:47:03,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:47:03,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:47:03,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:03" (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 [2020-09-25 14:47:03,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:47:03,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:47:03,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 14:47:03,148 INFO L138 BoogieDeclarations]: Found implementation of procedure r_strncpy [2020-09-25 14:47:03,148 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2020-09-25 14:47:03,148 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:47:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:47:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 14:47:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 14:47:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2020-09-25 14:47:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-09-25 14:47:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2020-09-25 14:47:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-09-25 14:47:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy_ptr [2020-09-25 14:47:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-09-25 14:47:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-09-25 14:47:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2020-09-25 14:47:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-09-25 14:47:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2020-09-25 14:47:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-25 14:47:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure isascii [2020-09-25 14:47:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure isspace [2020-09-25 14:47:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-25 14:47:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure strrand [2020-09-25 14:47:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure istrrand [2020-09-25 14:47:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure istrchr [2020-09-25 14:47:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure istrrchr [2020-09-25 14:47:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure istrncmp [2020-09-25 14:47:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure istrstr [2020-09-25 14:47:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncpy [2020-09-25 14:47:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcpy [2020-09-25 14:47:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcat [2020-09-25 14:47:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncat [2020-09-25 14:47:03,156 INFO L130 BoogieDeclarations]: Found specification of procedure r_memcpy [2020-09-25 14:47:03,156 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2020-09-25 14:47:03,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:47:03,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:47:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:47:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:47:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:47:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:47:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:47:03,702 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:47:03,703 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 14:47:03,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:47:03 BoogieIcfgContainer [2020-09-25 14:47:03,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:47:03,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:47:03,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:47:03,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:47:03,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:47:02" (1/3) ... [2020-09-25 14:47:03,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dbcc10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:47:03, skipping insertion in model container [2020-09-25 14:47:03,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:03" (2/3) ... [2020-09-25 14:47:03,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dbcc10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:47:03, skipping insertion in model container [2020-09-25 14:47:03,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:47:03" (3/3) ... [2020-09-25 14:47:03,721 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-09-25 14:47:03,734 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:47:03,746 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:47:03,770 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:47:03,806 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:47:03,807 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:47:03,807 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:47:03,807 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:47:03,807 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:47:03,807 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:47:03,808 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:47:03,808 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:47:03,837 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2020-09-25 14:47:03,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 14:47:03,850 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:03,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:03,852 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:03,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:03,861 INFO L82 PathProgramCache]: Analyzing trace with hash 593727157, now seen corresponding path program 1 times [2020-09-25 14:47:03,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:03,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770843878] [2020-09-25 14:47:03,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:04,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:04,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:04,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:04,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:04,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:04,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:05,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:05,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:07,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:07,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 14:47:07,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 14:47:07,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3108 [2020-09-25 14:47:07,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:07,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:07,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:47:07,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 14:47:07,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 14:47:07,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:47:07,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:07,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:07,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:07,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:47:07,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:07,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:47:07,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:07,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:07,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:07,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:07,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:07,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:07,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 14:47:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:07,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:07,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:07,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 14:47:07,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:07,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:47:07,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:07,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:07,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:07,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:47:07,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:07,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:47:07,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:47:07,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1770843878] [2020-09-25 14:47:07,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:07,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 14:47:07,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102157455] [2020-09-25 14:47:07,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:47:07,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:07,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:47:07,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:47:07,371 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 8 states. [2020-09-25 14:47:08,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:08,344 INFO L93 Difference]: Finished difference Result 590 states and 697 transitions. [2020-09-25 14:47:08,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 14:47:08,346 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-09-25 14:47:08,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:08,367 INFO L225 Difference]: With dead ends: 590 [2020-09-25 14:47:08,367 INFO L226 Difference]: Without dead ends: 389 [2020-09-25 14:47:08,374 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-09-25 14:47:08,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-09-25 14:47:08,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 153. [2020-09-25 14:47:08,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-09-25 14:47:08,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 171 transitions. [2020-09-25 14:47:08,457 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 171 transitions. Word has length 51 [2020-09-25 14:47:08,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:08,458 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 171 transitions. [2020-09-25 14:47:08,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:47:08,458 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 171 transitions. [2020-09-25 14:47:08,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-25 14:47:08,461 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:08,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:08,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:47:08,462 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:08,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:08,463 INFO L82 PathProgramCache]: Analyzing trace with hash -751635860, now seen corresponding path program 1 times [2020-09-25 14:47:08,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:08,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400816027] [2020-09-25 14:47:08,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:08,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:08,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:08,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:08,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:08,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:08,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:09,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:09,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:09,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:09,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:09,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:13,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:13,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 14:47:13,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 14:47:13,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 14:47:13,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:13,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:13,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:47:13,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 14:47:13,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 14:47:13,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:47:13,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:13,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:13,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:13,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:47:13,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:13,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:47:13,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:13,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:13,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:13,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:13,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:13,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-09-25 14:47:13,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:13,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:13,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:13,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 14:47:13,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:13,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:47:13,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:13,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:13,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:13,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:47:13,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:13,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:13,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:47:13,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [400816027] [2020-09-25 14:47:13,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:13,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 14:47:13,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353660303] [2020-09-25 14:47:13,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:47:13,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:13,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:47:13,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:47:13,615 INFO L87 Difference]: Start difference. First operand 153 states and 171 transitions. Second operand 8 states. [2020-09-25 14:47:14,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:14,077 INFO L93 Difference]: Finished difference Result 485 states and 555 transitions. [2020-09-25 14:47:14,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:47:14,077 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-09-25 14:47:14,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:14,081 INFO L225 Difference]: With dead ends: 485 [2020-09-25 14:47:14,081 INFO L226 Difference]: Without dead ends: 348 [2020-09-25 14:47:14,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2020-09-25 14:47:14,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-09-25 14:47:14,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 220. [2020-09-25 14:47:14,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-09-25 14:47:14,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 249 transitions. [2020-09-25 14:47:14,103 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 249 transitions. Word has length 66 [2020-09-25 14:47:14,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:14,104 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 249 transitions. [2020-09-25 14:47:14,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:47:14,104 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 249 transitions. [2020-09-25 14:47:14,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-25 14:47:14,107 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:14,107 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:14,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:47:14,109 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:14,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:14,110 INFO L82 PathProgramCache]: Analyzing trace with hash 478382152, now seen corresponding path program 1 times [2020-09-25 14:47:14,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:14,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741628028] [2020-09-25 14:47:14,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:14,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:14,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:14,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:14,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:14,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:14,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:15,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:15,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:16,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:19,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:19,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 14:47:19,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 14:47:19,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 14:47:19,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:19,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:19,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:47:19,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 14:47:19,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 14:47:19,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:19,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:19,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:19,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:19,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:47:19,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:19,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:47:19,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:19,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:19,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:19,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:19,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:19,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:19,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-09-25 14:47:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:19,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:19,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:19,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 14:47:19,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:19,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:47:19,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:19,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:19,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:19,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:47:19,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:19,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:47:19,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:47:19,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741628028] [2020-09-25 14:47:19,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:19,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 14:47:19,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011976165] [2020-09-25 14:47:19,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:47:19,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:19,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:47:19,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:47:19,268 INFO L87 Difference]: Start difference. First operand 220 states and 249 transitions. Second operand 8 states. [2020-09-25 14:47:19,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:19,871 INFO L93 Difference]: Finished difference Result 520 states and 590 transitions. [2020-09-25 14:47:19,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:47:19,871 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-09-25 14:47:19,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:19,875 INFO L225 Difference]: With dead ends: 520 [2020-09-25 14:47:19,875 INFO L226 Difference]: Without dead ends: 380 [2020-09-25 14:47:19,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-09-25 14:47:19,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-09-25 14:47:19,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 279. [2020-09-25 14:47:19,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-09-25 14:47:19,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 319 transitions. [2020-09-25 14:47:19,896 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 319 transitions. Word has length 66 [2020-09-25 14:47:19,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:19,896 INFO L479 AbstractCegarLoop]: Abstraction has 279 states and 319 transitions. [2020-09-25 14:47:19,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:47:19,897 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 319 transitions. [2020-09-25 14:47:19,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 14:47:19,901 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:19,901 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:19,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:47:19,901 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:19,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:19,902 INFO L82 PathProgramCache]: Analyzing trace with hash -896288894, now seen corresponding path program 1 times [2020-09-25 14:47:19,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:19,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965756485] [2020-09-25 14:47:19,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:19,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:19,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:19,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:19,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:20,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:20,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:21,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:23,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:23,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:23,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:23,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:24,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:24,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 14:47:24,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 14:47:24,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 14:47:24,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:24,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:24,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:47:24,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 14:47:24,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 14:47:24,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:24,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:25,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:25,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:25,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:47:25,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:25,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:47:25,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:25,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:25,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:25,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:25,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:25,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:25,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-25 14:47:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:25,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:25,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:25,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 14:47:25,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:25,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:47:25,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:25,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:25,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:25,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:47:25,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:25,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:25,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:47:25,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [965756485] [2020-09-25 14:47:25,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:25,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 14:47:25,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868258938] [2020-09-25 14:47:25,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:47:25,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:25,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:47:25,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:47:25,039 INFO L87 Difference]: Start difference. First operand 279 states and 319 transitions. Second operand 8 states. [2020-09-25 14:47:25,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:25,590 INFO L93 Difference]: Finished difference Result 503 states and 570 transitions. [2020-09-25 14:47:25,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:47:25,590 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 70 [2020-09-25 14:47:25,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:25,593 INFO L225 Difference]: With dead ends: 503 [2020-09-25 14:47:25,593 INFO L226 Difference]: Without dead ends: 363 [2020-09-25 14:47:25,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2020-09-25 14:47:25,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-09-25 14:47:25,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 284. [2020-09-25 14:47:25,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-09-25 14:47:25,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 323 transitions. [2020-09-25 14:47:25,619 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 323 transitions. Word has length 70 [2020-09-25 14:47:25,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:25,623 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 323 transitions. [2020-09-25 14:47:25,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:47:25,624 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 323 transitions. [2020-09-25 14:47:25,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-25 14:47:25,632 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:25,635 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 14:47:25,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:47:25,635 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:25,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:25,636 INFO L82 PathProgramCache]: Analyzing trace with hash -365463683, now seen corresponding path program 1 times [2020-09-25 14:47:25,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:25,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533748643] [2020-09-25 14:47:25,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:25,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:25,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:25,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:25,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:26,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:26,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:26,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:27,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:27,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:27,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:28,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:30,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:30,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:47:30,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 14:47:30,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 14:47:30,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:30,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:30,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:47:30,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 14:47:30,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 14:47:30,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:30,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:30,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:30,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:30,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:47:30,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:30,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:47:30,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:30,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:30,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:30,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:30,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:30,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:30,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 14:47:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:30,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:30,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:30,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 14:47:30,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:30,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:47:30,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:30,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:30,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:30,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:47:30,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:30,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:30,774 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:47:30,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533748643] [2020-09-25 14:47:30,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:30,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 14:47:30,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011878081] [2020-09-25 14:47:30,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:47:30,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:30,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:47:30,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:47:30,778 INFO L87 Difference]: Start difference. First operand 284 states and 323 transitions. Second operand 8 states. [2020-09-25 14:47:31,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:31,182 INFO L93 Difference]: Finished difference Result 523 states and 595 transitions. [2020-09-25 14:47:31,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 14:47:31,183 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 73 [2020-09-25 14:47:31,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:31,185 INFO L225 Difference]: With dead ends: 523 [2020-09-25 14:47:31,185 INFO L226 Difference]: Without dead ends: 325 [2020-09-25 14:47:31,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-09-25 14:47:31,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-09-25 14:47:31,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 249. [2020-09-25 14:47:31,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 14:47:31,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 278 transitions. [2020-09-25 14:47:31,199 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 278 transitions. Word has length 73 [2020-09-25 14:47:31,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:31,200 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 278 transitions. [2020-09-25 14:47:31,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:47:31,201 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 278 transitions. [2020-09-25 14:47:31,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-25 14:47:31,203 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:31,203 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:31,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 14:47:31,204 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:31,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:31,204 INFO L82 PathProgramCache]: Analyzing trace with hash -2045267144, now seen corresponding path program 1 times [2020-09-25 14:47:31,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:31,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121286092] [2020-09-25 14:47:31,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:31,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:31,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:31,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:31,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:31,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:31,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:31,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:31,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:31,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:36,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:36,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:47:36,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 14:47:36,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 14:47:36,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:36,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:36,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:47:36,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 14:47:36,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 14:47:36,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:36,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:36,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:36,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:36,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:47:36,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:36,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:47:36,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:36,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:36,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:36,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:36,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:36,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:47:36,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 14:47:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:36,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:36,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:36,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 14:47:36,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:36,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:47:36,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:36,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:36,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:36,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:47:36,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:36,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:36,358 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:47:36,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121286092] [2020-09-25 14:47:36,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:36,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 14:47:36,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798113870] [2020-09-25 14:47:36,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:47:36,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:36,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:47:36,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:47:36,367 INFO L87 Difference]: Start difference. First operand 249 states and 278 transitions. Second operand 8 states. [2020-09-25 14:47:37,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:37,015 INFO L93 Difference]: Finished difference Result 510 states and 572 transitions. [2020-09-25 14:47:37,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:47:37,016 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 73 [2020-09-25 14:47:37,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:37,023 INFO L225 Difference]: With dead ends: 510 [2020-09-25 14:47:37,023 INFO L226 Difference]: Without dead ends: 363 [2020-09-25 14:47:37,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-09-25 14:47:37,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-09-25 14:47:37,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 284. [2020-09-25 14:47:37,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-09-25 14:47:37,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 318 transitions. [2020-09-25 14:47:37,046 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 318 transitions. Word has length 73 [2020-09-25 14:47:37,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:37,047 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 318 transitions. [2020-09-25 14:47:37,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:47:37,047 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 318 transitions. [2020-09-25 14:47:37,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-09-25 14:47:37,050 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:37,051 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] [2020-09-25 14:47:37,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 14:47:37,052 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:37,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:37,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1576903382, now seen corresponding path program 1 times [2020-09-25 14:47:37,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:37,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945566743] [2020-09-25 14:47:37,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:37,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:37,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:37,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:37,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:37,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:37,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:37,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:37,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:40,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:40,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 14:47:40,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 14:47:40,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3553 [2020-09-25 14:47:40,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:40,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:40,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:47:40,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 14:47:40,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 14:47:40,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:40,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:40,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:40,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:40,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:47:40,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:40,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:47:40,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:40,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:40,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:40,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:40,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:40,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:47:40,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 14:47:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:40,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:40,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:40,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 14:47:40,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:40,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:47:40,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:40,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:40,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:47:40,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:40,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:47:40,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:40,727 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 14:47:40,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945566743] [2020-09-25 14:47:40,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:40,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 14:47:40,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548268999] [2020-09-25 14:47:40,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:47:40,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:40,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:47:40,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:47:40,730 INFO L87 Difference]: Start difference. First operand 284 states and 318 transitions. Second operand 8 states. [2020-09-25 14:47:41,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:41,087 INFO L93 Difference]: Finished difference Result 341 states and 382 transitions. [2020-09-25 14:47:41,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 14:47:41,087 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-09-25 14:47:41,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:41,088 INFO L225 Difference]: With dead ends: 341 [2020-09-25 14:47:41,088 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 14:47:41,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2020-09-25 14:47:41,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 14:47:41,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 14:47:41,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 14:47:41,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 14:47:41,090 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 74 [2020-09-25 14:47:41,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:41,090 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 14:47:41,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:47:41,091 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 14:47:41,091 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 14:47:41,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 14:47:41,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 14:47:41,187 INFO L268 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-09-25 14:47:41,187 INFO L268 CegarLoopResult]: For program point L60-1(line 60) no Hoare annotation was computed. [2020-09-25 14:47:41,187 INFO L268 CegarLoopResult]: For program point L60-2(line 60) no Hoare annotation was computed. [2020-09-25 14:47:41,188 INFO L268 CegarLoopResult]: For program point L60-4(line 60) no Hoare annotation was computed. [2020-09-25 14:47:41,188 INFO L268 CegarLoopResult]: For program point L60-5(line 60) no Hoare annotation was computed. [2020-09-25 14:47:41,188 INFO L268 CegarLoopResult]: For program point L60-6(line 60) no Hoare annotation was computed. [2020-09-25 14:47:41,188 INFO L268 CegarLoopResult]: For program point L60-7(line 60) no Hoare annotation was computed. [2020-09-25 14:47:41,188 INFO L268 CegarLoopResult]: For program point L60-8(line 60) no Hoare annotation was computed. [2020-09-25 14:47:41,188 INFO L268 CegarLoopResult]: For program point L60-9(line 60) no Hoare annotation was computed. [2020-09-25 14:47:41,188 INFO L268 CegarLoopResult]: For program point L52-1(lines 52 73) no Hoare annotation was computed. [2020-09-25 14:47:41,189 INFO L268 CegarLoopResult]: For program point L60-11(line 60) no Hoare annotation was computed. [2020-09-25 14:47:41,190 INFO L271 CegarLoopResult]: At program point L52-3(lines 52 73) the Hoare annotation is: true [2020-09-25 14:47:41,190 INFO L268 CegarLoopResult]: For program point L60-12(line 60) no Hoare annotation was computed. [2020-09-25 14:47:41,190 INFO L268 CegarLoopResult]: For program point L52-4(lines 52 73) no Hoare annotation was computed. [2020-09-25 14:47:41,190 INFO L268 CegarLoopResult]: For program point L60-13(lines 54 72) no Hoare annotation was computed. [2020-09-25 14:47:41,190 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-09-25 14:47:41,191 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-09-25 14:47:41,191 INFO L268 CegarLoopResult]: For program point L53-1(line 53) no Hoare annotation was computed. [2020-09-25 14:47:41,191 INFO L268 CegarLoopResult]: For program point L62(lines 62 64) no Hoare annotation was computed. [2020-09-25 14:47:41,191 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-09-25 14:47:41,191 INFO L268 CegarLoopResult]: For program point L54-1(line 54) no Hoare annotation was computed. [2020-09-25 14:47:41,191 INFO L268 CegarLoopResult]: For program point L54-2(lines 54 72) no Hoare annotation was computed. [2020-09-25 14:47:41,191 INFO L268 CegarLoopResult]: For program point L54-3(lines 54 72) no Hoare annotation was computed. [2020-09-25 14:47:41,192 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-09-25 14:47:41,192 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-25 14:47:41,192 INFO L268 CegarLoopResult]: For program point L56-1(line 56) no Hoare annotation was computed. [2020-09-25 14:47:41,192 INFO L268 CegarLoopResult]: For program point L56-2(line 56) no Hoare annotation was computed. [2020-09-25 14:47:41,193 INFO L268 CegarLoopResult]: For program point L56-4(line 56) no Hoare annotation was computed. [2020-09-25 14:47:41,193 INFO L268 CegarLoopResult]: For program point L56-5(line 56) no Hoare annotation was computed. [2020-09-25 14:47:41,193 INFO L268 CegarLoopResult]: For program point L56-6(line 56) no Hoare annotation was computed. [2020-09-25 14:47:41,193 INFO L268 CegarLoopResult]: For program point L56-7(line 56) no Hoare annotation was computed. [2020-09-25 14:47:41,193 INFO L268 CegarLoopResult]: For program point L56-8(line 56) no Hoare annotation was computed. [2020-09-25 14:47:41,193 INFO L268 CegarLoopResult]: For program point L56-9(line 56) no Hoare annotation was computed. [2020-09-25 14:47:41,193 INFO L268 CegarLoopResult]: For program point L56-11(line 56) no Hoare annotation was computed. [2020-09-25 14:47:41,194 INFO L268 CegarLoopResult]: For program point L56-12(line 56) no Hoare annotation was computed. [2020-09-25 14:47:41,194 INFO L268 CegarLoopResult]: For program point L56-13(line 56) no Hoare annotation was computed. [2020-09-25 14:47:41,194 INFO L268 CegarLoopResult]: For program point L56-14(line 56) no Hoare annotation was computed. [2020-09-25 14:47:41,194 INFO L268 CegarLoopResult]: For program point L56-15(line 56) no Hoare annotation was computed. [2020-09-25 14:47:41,194 INFO L268 CegarLoopResult]: For program point L73(lines 52 73) no Hoare annotation was computed. [2020-09-25 14:47:41,194 INFO L268 CegarLoopResult]: For program point L56-16(line 56) no Hoare annotation was computed. [2020-09-25 14:47:41,194 INFO L268 CegarLoopResult]: For program point L73-1(line 73) no Hoare annotation was computed. [2020-09-25 14:47:41,195 INFO L271 CegarLoopResult]: At program point L56-17(line 56) the Hoare annotation is: true [2020-09-25 14:47:41,195 INFO L268 CegarLoopResult]: For program point L73-2(line 73) no Hoare annotation was computed. [2020-09-25 14:47:41,195 INFO L268 CegarLoopResult]: For program point L56-18(line 56) no Hoare annotation was computed. [2020-09-25 14:47:41,196 INFO L264 CegarLoopResult]: At program point L65(line 65) the Hoare annotation is: (<= parse_expression_list_~j~0 parse_expression_list_~start~0) [2020-09-25 14:47:41,196 INFO L268 CegarLoopResult]: For program point L65-1(line 65) no Hoare annotation was computed. [2020-09-25 14:47:41,196 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-25 14:47:41,196 INFO L268 CegarLoopResult]: For program point L57-1(line 57) no Hoare annotation was computed. [2020-09-25 14:47:41,196 INFO L268 CegarLoopResult]: For program point L57-2(line 57) no Hoare annotation was computed. [2020-09-25 14:47:41,197 INFO L268 CegarLoopResult]: For program point L57-3(line 57) no Hoare annotation was computed. [2020-09-25 14:47:41,197 INFO L268 CegarLoopResult]: For program point L57-4(line 57) no Hoare annotation was computed. [2020-09-25 14:47:41,197 INFO L268 CegarLoopResult]: For program point L57-6(line 57) no Hoare annotation was computed. [2020-09-25 14:47:41,197 INFO L268 CegarLoopResult]: For program point L57-7(line 57) no Hoare annotation was computed. [2020-09-25 14:47:41,197 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-25 14:47:41,197 INFO L268 CegarLoopResult]: For program point L49-1(line 49) no Hoare annotation was computed. [2020-09-25 14:47:41,197 INFO L268 CegarLoopResult]: For program point L49-2(line 49) no Hoare annotation was computed. [2020-09-25 14:47:41,198 INFO L264 CegarLoopResult]: At program point L66(line 66) the Hoare annotation is: (<= parse_expression_list_~j~0 parse_expression_list_~start~0) [2020-09-25 14:47:41,198 INFO L268 CegarLoopResult]: For program point L66-1(line 66) no Hoare annotation was computed. [2020-09-25 14:47:41,198 INFO L268 CegarLoopResult]: For program point parse_expression_listFINAL(lines 47 75) no Hoare annotation was computed. [2020-09-25 14:47:41,198 INFO L264 CegarLoopResult]: At program point parse_expression_listENTRY(lines 47 75) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-25 14:47:41,198 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-25 14:47:41,198 INFO L268 CegarLoopResult]: For program point L50-1(lines 48 75) no Hoare annotation was computed. [2020-09-25 14:47:41,199 INFO L268 CegarLoopResult]: For program point L50-2(line 50) no Hoare annotation was computed. [2020-09-25 14:47:41,199 INFO L268 CegarLoopResult]: For program point L50-3(line 50) no Hoare annotation was computed. [2020-09-25 14:47:41,200 INFO L268 CegarLoopResult]: For program point L50-4(line 50) no Hoare annotation was computed. [2020-09-25 14:47:41,200 INFO L268 CegarLoopResult]: For program point L50-5(line 50) no Hoare annotation was computed. [2020-09-25 14:47:41,201 INFO L268 CegarLoopResult]: For program point L50-6(line 50) no Hoare annotation was computed. [2020-09-25 14:47:41,201 INFO L268 CegarLoopResult]: For program point L50-7(line 50) no Hoare annotation was computed. [2020-09-25 14:47:41,201 INFO L268 CegarLoopResult]: For program point L50-8(line 50) no Hoare annotation was computed. [2020-09-25 14:47:41,201 INFO L268 CegarLoopResult]: For program point L50-9(line 50) no Hoare annotation was computed. [2020-09-25 14:47:41,201 INFO L268 CegarLoopResult]: For program point L67(lines 61 70) no Hoare annotation was computed. [2020-09-25 14:47:41,201 INFO L268 CegarLoopResult]: For program point parse_expression_listEXIT(lines 47 75) no Hoare annotation was computed. [2020-09-25 14:47:41,201 INFO L268 CegarLoopResult]: For program point L59-1(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,201 INFO L268 CegarLoopResult]: For program point L59-2(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,202 INFO L268 CegarLoopResult]: For program point L59-3(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,202 INFO L268 CegarLoopResult]: For program point L59-4(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,202 INFO L268 CegarLoopResult]: For program point L59-6(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,202 INFO L268 CegarLoopResult]: For program point L59-7(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,202 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-25 14:47:41,202 INFO L268 CegarLoopResult]: For program point L59-8(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,202 INFO L268 CegarLoopResult]: For program point L59-10(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,202 INFO L268 CegarLoopResult]: For program point L59-11(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,203 INFO L268 CegarLoopResult]: For program point L59-12(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,203 INFO L268 CegarLoopResult]: For program point L59-13(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,203 INFO L268 CegarLoopResult]: For program point L59-14(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,203 INFO L268 CegarLoopResult]: For program point L59-16(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,203 INFO L268 CegarLoopResult]: For program point L59-17(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,204 INFO L268 CegarLoopResult]: For program point L59-18(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,204 INFO L268 CegarLoopResult]: For program point L59-19(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,204 INFO L268 CegarLoopResult]: For program point L59-20(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,205 INFO L268 CegarLoopResult]: For program point L59-21(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,205 INFO L268 CegarLoopResult]: For program point L59-22(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,205 INFO L271 CegarLoopResult]: At program point L59-23(line 59) the Hoare annotation is: true [2020-09-25 14:47:41,205 INFO L268 CegarLoopResult]: For program point L59-24(line 59) no Hoare annotation was computed. [2020-09-25 14:47:41,205 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 14:47:41,206 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 14:47:41,206 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 14:47:41,206 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|)) [2020-09-25 14:47:41,206 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 14:47:41,206 INFO L268 CegarLoopResult]: For program point r_strncpyFINAL(line 31) no Hoare annotation was computed. [2020-09-25 14:47:41,206 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 14:47:41,206 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-09-25 14:47:41,206 INFO L268 CegarLoopResult]: For program point L31-2(line 31) no Hoare annotation was computed. [2020-09-25 14:47:41,207 INFO L268 CegarLoopResult]: For program point r_strncpyEXIT(line 31) no Hoare annotation was computed. [2020-09-25 14:47:41,207 INFO L268 CegarLoopResult]: For program point L31-3(line 31) no Hoare annotation was computed. [2020-09-25 14:47:41,207 INFO L268 CegarLoopResult]: For program point L31-4(line 31) no Hoare annotation was computed. [2020-09-25 14:47:41,207 INFO L271 CegarLoopResult]: At program point r_strncpyENTRY(line 31) the Hoare annotation is: true [2020-09-25 14:47:41,207 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 14:47:41,207 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 14:47:41,207 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 14:47:41,207 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 14:47:41,207 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 76 85) no Hoare annotation was computed. [2020-09-25 14:47:41,208 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-09-25 14:47:41,208 INFO L268 CegarLoopResult]: For program point L83-1(line 83) no Hoare annotation was computed. [2020-09-25 14:47:41,208 INFO L268 CegarLoopResult]: For program point L79-2(lines 79 81) no Hoare annotation was computed. [2020-09-25 14:47:41,208 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 76 85) no Hoare annotation was computed. [2020-09-25 14:47:41,208 INFO L268 CegarLoopResult]: For program point L79-3(line 79) no Hoare annotation was computed. [2020-09-25 14:47:41,208 INFO L268 CegarLoopResult]: For program point L79-4(line 79) no Hoare annotation was computed. [2020-09-25 14:47:41,208 INFO L271 CegarLoopResult]: At program point L79-5(lines 79 81) the Hoare annotation is: true [2020-09-25 14:47:41,208 INFO L268 CegarLoopResult]: For program point L79-6(lines 79 81) no Hoare annotation was computed. [2020-09-25 14:47:41,209 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 76 85) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-25 14:47:41,209 INFO L268 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-09-25 14:47:41,209 INFO L271 CegarLoopResult]: At program point L82(line 82) the Hoare annotation is: true [2020-09-25 14:47:41,210 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-09-25 14:47:41,210 INFO L268 CegarLoopResult]: For program point L80-1(line 80) no Hoare annotation was computed. [2020-09-25 14:47:41,210 INFO L268 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-09-25 14:47:41,210 INFO L268 CegarLoopResult]: For program point L80-2(line 80) no Hoare annotation was computed. [2020-09-25 14:47:41,210 INFO L268 CegarLoopResult]: For program point L78-1(line 78) no Hoare annotation was computed. [2020-09-25 14:47:41,210 INFO L268 CegarLoopResult]: For program point L78-2(line 78) no Hoare annotation was computed. [2020-09-25 14:47:41,210 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-25 14:47:41,211 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-09-25 14:47:41,211 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 14:47:41,211 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-09-25 14:47:41,211 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-09-25 14:47:41,211 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-09-25 14:47:41,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:47:41 BoogieIcfgContainer [2020-09-25 14:47:41,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 14:47:41,231 INFO L168 Benchmark]: Toolchain (without parser) took 38789.35 ms. Allocated memory was 144.7 MB in the beginning and 434.6 MB in the end (delta: 289.9 MB). Free memory was 99.3 MB in the beginning and 348.9 MB in the end (delta: -249.6 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2020-09-25 14:47:41,238 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.7 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 14:47:41,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 555.44 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 98.7 MB in the beginning and 178.3 MB in the end (delta: -79.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-09-25 14:47:41,241 INFO L168 Benchmark]: Boogie Preprocessor took 64.75 ms. Allocated memory is still 201.3 MB. Free memory was 178.3 MB in the beginning and 175.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-09-25 14:47:41,241 INFO L168 Benchmark]: RCFGBuilder took 643.20 ms. Allocated memory is still 201.3 MB. Free memory was 175.3 MB in the beginning and 140.5 MB in the end (delta: 34.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2020-09-25 14:47:41,242 INFO L168 Benchmark]: TraceAbstraction took 37516.64 ms. Allocated memory was 201.3 MB in the beginning and 434.6 MB in the end (delta: 233.3 MB). Free memory was 140.5 MB in the beginning and 348.9 MB in the end (delta: -208.4 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-09-25 14:47:41,255 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 144.7 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 555.44 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 98.7 MB in the beginning and 178.3 MB in the end (delta: -79.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.75 ms. Allocated memory is still 201.3 MB. Free memory was 178.3 MB in the beginning and 175.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 643.20 ms. Allocated memory is still 201.3 MB. Free memory was 175.3 MB in the beginning and 140.5 MB in the end (delta: 34.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 37516.64 ms. Allocated memory was 201.3 MB in the beginning and 434.6 MB in the end (delta: 233.3 MB). Free memory was 140.5 MB in the beginning and 348.9 MB in the end (delta: -208.4 MB). Peak memory consumption was 24.9 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: 52]: 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: 79]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 135 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 37.2s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 911 SDtfs, 1887 SDslu, 3139 SDs, 0 SdLazy, 2161 SolverSat, 148 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=284occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 699 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 34 PreInvPairs, 56 NumberOfFragments, 31 HoareAnnotationTreeSize, 34 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 40 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 32.5s InterpolantComputationTime, 473 NumberOfCodeBlocks, 473 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 466 ConstructedInterpolants, 0 QuantifiedInterpolants, 76708 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 13/13 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...