/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 15:19:14,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 15:19:14,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 15:19:14,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 15:19:14,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 15:19:14,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 15:19:14,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 15:19:14,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 15:19:14,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 15:19:14,490 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 15:19:14,491 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 15:19:14,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 15:19:14,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 15:19:14,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 15:19:14,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 15:19:14,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 15:19:14,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 15:19:14,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 15:19:14,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 15:19:14,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 15:19:14,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 15:19:14,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 15:19:14,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 15:19:14,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 15:19:14,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 15:19:14,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 15:19:14,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 15:19:14,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 15:19:14,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 15:19:14,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 15:19:14,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 15:19:14,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 15:19:14,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 15:19:14,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 15:19:14,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 15:19:14,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 15:19:14,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 15:19:14,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 15:19:14,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 15:19:14,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 15:19:14,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 15:19:14,532 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 15:19:14,600 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 15:19:14,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 15:19:14,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 15:19:14,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 15:19:14,606 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 15:19:14,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 15:19:14,606 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 15:19:14,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 15:19:14,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 15:19:14,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 15:19:14,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 15:19:14,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 15:19:14,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 15:19:14,608 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 15:19:14,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 15:19:14,608 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 15:19:14,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 15:19:14,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 15:19:14,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 15:19:14,609 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 15:19:14,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 15:19:14,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 15:19:14,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 15:19:14,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 15:19:14,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 15:19:14,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 15:19:14,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 15:19:14,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 15:19:14,612 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 15:19:14,612 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 15:19:15,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 15:19:15,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 15:19:15,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 15:19:15,074 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 15:19:15,075 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 15:19:15,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-10-28 15:19:15,163 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b19a8a2ba/632f16c93ad943c899c3a7d0a5a1a9af/FLAG7229f76fd [2020-10-28 15:19:15,790 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 15:19:15,790 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-10-28 15:19:15,802 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b19a8a2ba/632f16c93ad943c899c3a7d0a5a1a9af/FLAG7229f76fd [2020-10-28 15:19:16,144 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b19a8a2ba/632f16c93ad943c899c3a7d0a5a1a9af [2020-10-28 15:19:16,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 15:19:16,155 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 15:19:16,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 15:19:16,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 15:19:16,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 15:19:16,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:19:16" (1/1) ... [2020-10-28 15:19:16,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b5ff187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:19:16, skipping insertion in model container [2020-10-28 15:19:16,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:19:16" (1/1) ... [2020-10-28 15:19:16,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 15:19:16,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 15:19:16,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 15:19:16,479 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 15:19:16,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 15:19:16,591 INFO L208 MainTranslator]: Completed translation [2020-10-28 15:19:16,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:19:16 WrapperNode [2020-10-28 15:19:16,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 15:19:16,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 15:19:16,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 15:19:16,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 15:19:16,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:19:16" (1/1) ... [2020-10-28 15:19:16,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:19:16" (1/1) ... [2020-10-28 15:19:16,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:19:16" (1/1) ... [2020-10-28 15:19:16,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:19:16" (1/1) ... [2020-10-28 15:19:16,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:19:16" (1/1) ... [2020-10-28 15:19:16,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:19:16" (1/1) ... [2020-10-28 15:19:16,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:19:16" (1/1) ... [2020-10-28 15:19:16,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 15:19:16,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 15:19:16,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 15:19:16,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 15:19:16,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:19:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 15:19:16,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 15:19:16,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 15:19:16,819 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 15:19:16,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-28 15:19:16,819 INFO L138 BoogieDeclarations]: Found implementation of procedure r_strncpy [2020-10-28 15:19:16,820 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2020-10-28 15:19:16,820 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 15:19:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 15:19:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 15:19:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 15:19:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 15:19:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 15:19:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 15:19:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 15:19:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 15:19:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2020-10-28 15:19:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-10-28 15:19:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2020-10-28 15:19:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-10-28 15:19:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy_ptr [2020-10-28 15:19:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-28 15:19:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-28 15:19:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2020-10-28 15:19:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-28 15:19:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2020-10-28 15:19:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-28 15:19:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure isascii [2020-10-28 15:19:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure isspace [2020-10-28 15:19:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-10-28 15:19:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure strrand [2020-10-28 15:19:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure istrrand [2020-10-28 15:19:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure istrchr [2020-10-28 15:19:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure istrrchr [2020-10-28 15:19:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure istrncmp [2020-10-28 15:19:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure istrstr [2020-10-28 15:19:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncpy [2020-10-28 15:19:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcpy [2020-10-28 15:19:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcat [2020-10-28 15:19:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncat [2020-10-28 15:19:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure r_memcpy [2020-10-28 15:19:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2020-10-28 15:19:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 15:19:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 15:19:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 15:19:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 15:19:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 15:19:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 15:19:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 15:19:17,457 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 15:19:17,457 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-28 15:19:17,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:19:17 BoogieIcfgContainer [2020-10-28 15:19:17,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 15:19:17,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 15:19:17,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 15:19:17,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 15:19:17,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 03:19:16" (1/3) ... [2020-10-28 15:19:17,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@267fd266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:19:17, skipping insertion in model container [2020-10-28 15:19:17,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:19:16" (2/3) ... [2020-10-28 15:19:17,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@267fd266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:19:17, skipping insertion in model container [2020-10-28 15:19:17,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:19:17" (3/3) ... [2020-10-28 15:19:17,469 INFO L111 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-10-28 15:19:17,482 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 15:19:17,488 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 15:19:17,502 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 15:19:17,531 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 15:19:17,531 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 15:19:17,532 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 15:19:17,532 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 15:19:17,532 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 15:19:17,532 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 15:19:17,532 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 15:19:17,532 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 15:19:17,551 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2020-10-28 15:19:17,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-28 15:19:17,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:19:17,559 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] [2020-10-28 15:19:17,560 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:19:17,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:19:17,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1971960154, now seen corresponding path program 1 times [2020-10-28 15:19:17,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:19:17,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81266730] [2020-10-28 15:19:17,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:19:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:19:17,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:17,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:17,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:18,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:18,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:19,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:19,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:21,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:19:21,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-28 15:19:21,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 15:19:21,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3769 [2020-10-28 15:19:21,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:19:21,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:19:21,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:19:21,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-28 15:19:21,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:19:21,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 15:19:21,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:19:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:19:21,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:21,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:19:21,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:19:21,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:19:21,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 15:19:21,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:19:21,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:19:21,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:19:21,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:19:21,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:19:21,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:19:21,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 15:19:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:19:21,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:21,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:19:21,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:19:21,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:19:21,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:19:21,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:19:21,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:19:21,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:19:21,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 15:19:21,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:19:21,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:19:21,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:19:21,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81266730] [2020-10-28 15:19:21,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:19:21,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 15:19:21,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975184240] [2020-10-28 15:19:21,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 15:19:21,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:19:21,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 15:19:21,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 15:19:21,748 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 3 states. [2020-10-28 15:19:22,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:19:22,010 INFO L93 Difference]: Finished difference Result 109 states and 148 transitions. [2020-10-28 15:19:22,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 15:19:22,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-10-28 15:19:22,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:19:22,027 INFO L225 Difference]: With dead ends: 109 [2020-10-28 15:19:22,027 INFO L226 Difference]: Without dead ends: 49 [2020-10-28 15:19:22,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 15:19:22,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-28 15:19:22,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-10-28 15:19:22,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-28 15:19:22,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2020-10-28 15:19:22,083 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 34 [2020-10-28 15:19:22,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:19:22,083 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2020-10-28 15:19:22,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 15:19:22,084 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2020-10-28 15:19:22,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-28 15:19:22,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:19:22,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:19:22,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 15:19:22,086 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:19:22,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:19:22,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1110300483, now seen corresponding path program 1 times [2020-10-28 15:19:22,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:19:22,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [656711853] [2020-10-28 15:19:22,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:19:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:19:22,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:22,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:22,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:22,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:22,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:22,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:22,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:22,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:23,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:25,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:25,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:25,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:25,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:27,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:19:27,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-28 15:19:27,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-28 15:19:27,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 15:19:27,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:19:27,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:19:27,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:19:27,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 15:19:27,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 15:19:27,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:19:27,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:19:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:19:27,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:27,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:19:27,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:19:27,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:19:27,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:19:27,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:19:27,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:19:27,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:19:27,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:19:27,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:19:27,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:19:27,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-28 15:19:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:19:27,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:27,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:19:27,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:19:27,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:19:27,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:19:27,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:19:27,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:19:27,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:19:27,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 15:19:27,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:19:27,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:19:27,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:19:27,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [656711853] [2020-10-28 15:19:27,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:19:27,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 15:19:27,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988102102] [2020-10-28 15:19:27,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 15:19:27,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:19:27,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 15:19:27,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 15:19:27,176 INFO L87 Difference]: Start difference. First operand 49 states and 59 transitions. Second operand 4 states. [2020-10-28 15:19:27,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:19:27,331 INFO L93 Difference]: Finished difference Result 87 states and 107 transitions. [2020-10-28 15:19:27,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 15:19:27,331 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-10-28 15:19:27,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:19:27,333 INFO L225 Difference]: With dead ends: 87 [2020-10-28 15:19:27,333 INFO L226 Difference]: Without dead ends: 50 [2020-10-28 15:19:27,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 15:19:27,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-28 15:19:27,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-10-28 15:19:27,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-28 15:19:27,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-10-28 15:19:27,345 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 38 [2020-10-28 15:19:27,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:19:27,346 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-10-28 15:19:27,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 15:19:27,346 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-10-28 15:19:27,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-28 15:19:27,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:19:27,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:19:27,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 15:19:27,348 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:19:27,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:19:27,349 INFO L82 PathProgramCache]: Analyzing trace with hash 976286977, now seen corresponding path program 1 times [2020-10-28 15:19:27,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:19:27,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960588456] [2020-10-28 15:19:27,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:19:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:19:27,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:27,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:27,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:27,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:27,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:27,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:27,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:27,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:28,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:28,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:28,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:32,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:19:32,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-28 15:19:32,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-28 15:19:32,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 15:19:32,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:19:32,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:19:32,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:19:32,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:19:32,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 15:19:32,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 15:19:32,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:19:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:19:32,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:32,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:19:32,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:19:32,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:19:32,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 15:19:32,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:19:32,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:19:32,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:19:32,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:19:32,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:19:32,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:19:32,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-28 15:19:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:19:32,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:32,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:19:32,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:19:32,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:19:32,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 15:19:32,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:19:32,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:19:32,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:19:32,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 15:19:32,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:19:32,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 15:19:32,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:19:32,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960588456] [2020-10-28 15:19:32,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:19:32,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 15:19:32,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698069464] [2020-10-28 15:19:32,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 15:19:32,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:19:32,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 15:19:32,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 15:19:32,470 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 4 states. [2020-10-28 15:19:32,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:19:32,665 INFO L93 Difference]: Finished difference Result 94 states and 114 transitions. [2020-10-28 15:19:32,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 15:19:32,666 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-10-28 15:19:32,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:19:32,668 INFO L225 Difference]: With dead ends: 94 [2020-10-28 15:19:32,668 INFO L226 Difference]: Without dead ends: 52 [2020-10-28 15:19:32,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 15:19:32,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-28 15:19:32,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2020-10-28 15:19:32,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-28 15:19:32,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 61 transitions. [2020-10-28 15:19:32,684 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 61 transitions. Word has length 38 [2020-10-28 15:19:32,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:19:32,684 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 61 transitions. [2020-10-28 15:19:32,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 15:19:32,685 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2020-10-28 15:19:32,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-28 15:19:32,688 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:19:32,688 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] [2020-10-28 15:19:32,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 15:19:32,688 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:19:32,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:19:32,689 INFO L82 PathProgramCache]: Analyzing trace with hash 193937571, now seen corresponding path program 1 times [2020-10-28 15:19:32,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:19:32,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1232490126] [2020-10-28 15:19:32,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:19:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:19:32,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:32,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:32,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:32,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:32,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:32,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:32,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:33,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:33,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:33,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:33,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:37,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:19:37,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-28 15:19:37,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-28 15:19:37,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 15:19:37,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:19:37,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:19:37,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:19:37,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-28 15:19:37,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 15:19:37,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:19:37,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:19:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:19:37,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:37,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:19:37,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:19:37,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:19:37,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:19:37,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:19:37,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:19:37,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:19:37,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:19:37,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:19:37,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:19:37,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 15:19:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:19:37,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:19:37,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:19:37,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:19:37,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:19:37,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:19:37,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:19:37,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:19:37,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:19:37,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:19:37,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:19:37,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:19:37,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 15:19:37,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1232490126] [2020-10-28 15:19:37,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:19:37,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 15:19:37,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062553868] [2020-10-28 15:19:37,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 15:19:37,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:19:37,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 15:19:37,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 15:19:37,854 INFO L87 Difference]: Start difference. First operand 51 states and 61 transitions. Second operand 6 states. [2020-10-28 15:19:38,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:19:38,131 INFO L93 Difference]: Finished difference Result 63 states and 77 transitions. [2020-10-28 15:19:38,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 15:19:38,131 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-10-28 15:19:38,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:19:38,132 INFO L225 Difference]: With dead ends: 63 [2020-10-28 15:19:38,132 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 15:19:38,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 15:19:38,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 15:19:38,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 15:19:38,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 15:19:38,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 15:19:38,135 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2020-10-28 15:19:38,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:19:38,135 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 15:19:38,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 15:19:38,136 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 15:19:38,136 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 15:19:38,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 15:19:38,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 15:19:38,339 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2020-10-28 15:19:38,341 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-10-28 15:19:38,341 INFO L274 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-10-28 15:19:38,341 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-10-28 15:19:38,341 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-28 15:19:38,341 INFO L270 CegarLoopResult]: At program point L77(line 77) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2020-10-28 15:19:38,342 INFO L274 CegarLoopResult]: For program point L77-1(line 77) no Hoare annotation was computed. [2020-10-28 15:19:38,342 INFO L274 CegarLoopResult]: For program point L73(lines 73 75) no Hoare annotation was computed. [2020-10-28 15:19:38,343 INFO L274 CegarLoopResult]: For program point L65(lines 65 83) no Hoare annotation was computed. [2020-10-28 15:19:38,343 INFO L274 CegarLoopResult]: For program point L70-1(line 70) no Hoare annotation was computed. [2020-10-28 15:19:38,343 INFO L274 CegarLoopResult]: For program point L70-2(line 70) no Hoare annotation was computed. [2020-10-28 15:19:38,343 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-28 15:19:38,343 INFO L274 CegarLoopResult]: For program point L70-4(line 70) no Hoare annotation was computed. [2020-10-28 15:19:38,343 INFO L274 CegarLoopResult]: For program point L70-6(line 70) no Hoare annotation was computed. [2020-10-28 15:19:38,343 INFO L274 CegarLoopResult]: For program point parse_expression_listFINAL(lines 58 86) no Hoare annotation was computed. [2020-10-28 15:19:38,343 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-10-28 15:19:38,344 INFO L277 CegarLoopResult]: At program point L70-8(line 70) the Hoare annotation is: true [2020-10-28 15:19:38,344 INFO L274 CegarLoopResult]: For program point L70-9(line 70) no Hoare annotation was computed. [2020-10-28 15:19:38,344 INFO L270 CegarLoopResult]: At program point parse_expression_listENTRY(lines 58 86) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-28 15:19:38,344 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-10-28 15:19:38,344 INFO L274 CegarLoopResult]: For program point L71-2(line 71) no Hoare annotation was computed. [2020-10-28 15:19:38,344 INFO L274 CegarLoopResult]: For program point L71-4(lines 65 83) no Hoare annotation was computed. [2020-10-28 15:19:38,344 INFO L274 CegarLoopResult]: For program point L67-1(line 67) no Hoare annotation was computed. [2020-10-28 15:19:38,344 INFO L274 CegarLoopResult]: For program point L67-3(line 67) no Hoare annotation was computed. [2020-10-28 15:19:38,345 INFO L277 CegarLoopResult]: At program point L67-5(line 67) the Hoare annotation is: true [2020-10-28 15:19:38,345 INFO L274 CegarLoopResult]: For program point L63-1(lines 63 84) no Hoare annotation was computed. [2020-10-28 15:19:38,345 INFO L274 CegarLoopResult]: For program point L67-6(line 67) no Hoare annotation was computed. [2020-10-28 15:19:38,345 INFO L274 CegarLoopResult]: For program point L63-2(lines 63 84) no Hoare annotation was computed. [2020-10-28 15:19:38,345 INFO L274 CegarLoopResult]: For program point parse_expression_listEXIT(lines 58 86) no Hoare annotation was computed. [2020-10-28 15:19:38,345 INFO L277 CegarLoopResult]: At program point L63-4(lines 63 84) the Hoare annotation is: true [2020-10-28 15:19:38,345 INFO L274 CegarLoopResult]: For program point L63-5(lines 63 84) no Hoare annotation was computed. [2020-10-28 15:19:38,345 INFO L270 CegarLoopResult]: At program point L76(line 76) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2020-10-28 15:19:38,346 INFO L274 CegarLoopResult]: For program point L76-1(line 76) no Hoare annotation was computed. [2020-10-28 15:19:38,346 INFO L274 CegarLoopResult]: For program point L72(lines 72 81) no Hoare annotation was computed. [2020-10-28 15:19:38,346 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-10-28 15:19:38,346 INFO L274 CegarLoopResult]: For program point L68-2(line 68) no Hoare annotation was computed. [2020-10-28 15:19:38,346 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 15:19:38,346 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2020-10-28 15:19:38,346 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 15:19:38,346 INFO L274 CegarLoopResult]: For program point r_strncpyFINAL(line 42) no Hoare annotation was computed. [2020-10-28 15:19:38,347 INFO L274 CegarLoopResult]: For program point r_strncpyEXIT(line 42) no Hoare annotation was computed. [2020-10-28 15:19:38,347 INFO L277 CegarLoopResult]: At program point r_strncpyENTRY(line 42) the Hoare annotation is: true [2020-10-28 15:19:38,347 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 15:19:38,347 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-28 15:19:38,347 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 15:19:38,347 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 15:19:38,347 INFO L277 CegarLoopResult]: At program point L94(line 94) the Hoare annotation is: true [2020-10-28 15:19:38,347 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 87 96) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-28 15:19:38,348 INFO L274 CegarLoopResult]: For program point L94-1(line 94) no Hoare annotation was computed. [2020-10-28 15:19:38,348 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 87 96) no Hoare annotation was computed. [2020-10-28 15:19:38,348 INFO L274 CegarLoopResult]: For program point L90-2(lines 90 92) no Hoare annotation was computed. [2020-10-28 15:19:38,348 INFO L277 CegarLoopResult]: At program point L90-3(lines 90 92) the Hoare annotation is: true [2020-10-28 15:19:38,348 INFO L274 CegarLoopResult]: For program point L90-4(lines 90 92) no Hoare annotation was computed. [2020-10-28 15:19:38,348 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 87 96) no Hoare annotation was computed. [2020-10-28 15:19:38,348 INFO L270 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (not (<= 1 |__VERIFIER_assert_#in~cond|)) [2020-10-28 15:19:38,348 INFO L274 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-10-28 15:19:38,349 INFO L274 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-10-28 15:19:38,349 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 14 19) the Hoare annotation is: true [2020-10-28 15:19:38,349 INFO L274 CegarLoopResult]: For program point L15-2(lines 14 19) no Hoare annotation was computed. [2020-10-28 15:19:38,349 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 14 19) no Hoare annotation was computed. [2020-10-28 15:19:38,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 03:19:38 BoogieIcfgContainer [2020-10-28 15:19:38,365 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 15:19:38,370 INFO L168 Benchmark]: Toolchain (without parser) took 22216.78 ms. Allocated memory was 151.0 MB in the beginning and 396.4 MB in the end (delta: 245.4 MB). Free memory was 125.4 MB in the beginning and 229.3 MB in the end (delta: -103.9 MB). Peak memory consumption was 142.2 MB. Max. memory is 8.0 GB. [2020-10-28 15:19:38,371 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 125.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 15:19:38,373 INFO L168 Benchmark]: CACSL2BoogieTranslator took 436.68 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 113.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-28 15:19:38,374 INFO L168 Benchmark]: Boogie Preprocessor took 117.51 ms. Allocated memory is still 151.0 MB. Free memory was 113.0 MB in the beginning and 110.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-28 15:19:38,375 INFO L168 Benchmark]: RCFGBuilder took 745.39 ms. Allocated memory is still 151.0 MB. Free memory was 110.9 MB in the beginning and 83.0 MB in the end (delta: 27.9 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. [2020-10-28 15:19:38,382 INFO L168 Benchmark]: TraceAbstraction took 20903.76 ms. Allocated memory was 151.0 MB in the beginning and 396.4 MB in the end (delta: 245.4 MB). Free memory was 82.4 MB in the beginning and 229.3 MB in the end (delta: -146.9 MB). Peak memory consumption was 99.2 MB. Max. memory is 8.0 GB. [2020-10-28 15:19:38,389 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 125.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 436.68 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 113.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 117.51 ms. Allocated memory is still 151.0 MB. Free memory was 113.0 MB in the beginning and 110.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 745.39 ms. Allocated memory is still 151.0 MB. Free memory was 110.9 MB in the beginning and 83.0 MB in the end (delta: 27.9 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 20903.76 ms. Allocated memory was 151.0 MB in the beginning and 396.4 MB in the end (delta: 245.4 MB). Free memory was 82.4 MB in the beginning and 229.3 MB in the end (delta: -146.9 MB). Peak memory consumption was 99.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 63]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 219 SDtfs, 49 SDslu, 204 SDs, 0 SdLazy, 278 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 40 PreInvPairs, 49 NumberOfFragments, 63 HoareAnnotationTreeSize, 40 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 92 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 19.2s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 9550 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...