/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=SMALLEST --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 [2020-09-24 18:29:36,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:29:36,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:29:36,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:29:36,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:29:36,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:29:36,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:29:36,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:29:36,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:29:36,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:29:36,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:29:36,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:29:36,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:29:36,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:29:36,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:29:36,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:29:36,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:29:36,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:29:36,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:29:36,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:29:36,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:29:36,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:29:36,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:29:36,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:29:36,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:29:36,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:29:36,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:29:36,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:29:36,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:29:36,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:29:36,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:29:36,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:29:36,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:29:36,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:29:36,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:29:36,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:29:36,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:29:36,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:29:36,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:29:36,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:29:36,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:29:36,816 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 [2020-09-24 18:29:36,845 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:29:36,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:29:36,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:29:36,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:29:36,850 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:29:36,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:29:36,850 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:29:36,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:29:36,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:29:36,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:29:36,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:29:36,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:29:36,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:29:36,853 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:29:36,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:29:36,854 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:29:36,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:29:36,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:29:36,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:29:36,854 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:29:36,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:29:36,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:29:36,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:29:36,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:29:36,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:29:36,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:29:36,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:29:36,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:29:36,858 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:29:36,858 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=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:29:37,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:29:37,399 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:29:37,404 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:29:37,406 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:29:37,408 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:29:37,409 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-09-24 18:29:37,503 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c342155c3/3921d0fd26254f63b5f0258088889466/FLAG273396c5d [2020-09-24 18:29:38,098 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:29:38,099 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-09-24 18:29:38,110 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c342155c3/3921d0fd26254f63b5f0258088889466/FLAG273396c5d [2020-09-24 18:29:38,402 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c342155c3/3921d0fd26254f63b5f0258088889466 [2020-09-24 18:29:38,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:29:38,423 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:29:38,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:29:38,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:29:38,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:29:38,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:29:38" (1/1) ... [2020-09-24 18:29:38,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c78ef90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:38, skipping insertion in model container [2020-09-24 18:29:38,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:29:38" (1/1) ... [2020-09-24 18:29:38,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:29:38,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:29:38,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:29:38,740 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:29:38,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:29:38,891 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:29:38,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:38 WrapperNode [2020-09-24 18:29:38,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:29:38,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:29:38,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:29:38,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:29:38,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:38" (1/1) ... [2020-09-24 18:29:38,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:38" (1/1) ... [2020-09-24 18:29:38,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:38" (1/1) ... [2020-09-24 18:29:38,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:38" (1/1) ... [2020-09-24 18:29:38,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:38" (1/1) ... [2020-09-24 18:29:38,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:38" (1/1) ... [2020-09-24 18:29:38,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:38" (1/1) ... [2020-09-24 18:29:38,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:29:38,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:29:38,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:29:38,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:29:38,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:29:39,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:29:39,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:29:39,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 18:29:39,040 INFO L138 BoogieDeclarations]: Found implementation of procedure r_strncpy [2020-09-24 18:29:39,040 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2020-09-24 18:29:39,041 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:29:39,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:29:39,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 18:29:39,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 18:29:39,043 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2020-09-24 18:29:39,043 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-09-24 18:29:39,043 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2020-09-24 18:29:39,043 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-09-24 18:29:39,043 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy_ptr [2020-09-24 18:29:39,044 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-09-24 18:29:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-09-24 18:29:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2020-09-24 18:29:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-09-24 18:29:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2020-09-24 18:29:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-24 18:29:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure isascii [2020-09-24 18:29:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure isspace [2020-09-24 18:29:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-24 18:29:39,047 INFO L130 BoogieDeclarations]: Found specification of procedure strrand [2020-09-24 18:29:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure istrrand [2020-09-24 18:29:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure istrchr [2020-09-24 18:29:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure istrrchr [2020-09-24 18:29:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure istrncmp [2020-09-24 18:29:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure istrstr [2020-09-24 18:29:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncpy [2020-09-24 18:29:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcpy [2020-09-24 18:29:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcat [2020-09-24 18:29:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncat [2020-09-24 18:29:39,052 INFO L130 BoogieDeclarations]: Found specification of procedure r_memcpy [2020-09-24 18:29:39,052 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2020-09-24 18:29:39,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:29:39,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:29:39,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:29:39,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:29:39,053 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:29:39,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:29:39,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:29:39,608 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:29:39,608 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-24 18:29:39,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:29:39 BoogieIcfgContainer [2020-09-24 18:29:39,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:29:39,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:29:39,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:29:39,620 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:29:39,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:29:38" (1/3) ... [2020-09-24 18:29:39,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf50377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:29:39, skipping insertion in model container [2020-09-24 18:29:39,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:38" (2/3) ... [2020-09-24 18:29:39,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf50377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:29:39, skipping insertion in model container [2020-09-24 18:29:39,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:29:39" (3/3) ... [2020-09-24 18:29:39,625 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-09-24 18:29:39,637 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:29:39,648 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:29:39,671 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:29:39,705 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:29:39,705 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:29:39,706 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:29:39,706 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:29:39,706 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:29:39,706 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:29:39,706 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:29:39,707 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:29:39,734 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2020-09-24 18:29:39,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 18:29:39,746 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:29:39,748 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] [2020-09-24 18:29:39,748 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:29:39,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:29:39,756 INFO L82 PathProgramCache]: Analyzing trace with hash 593727157, now seen corresponding path program 1 times [2020-09-24 18:29:39,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:29:39,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1868183000] [2020-09-24 18:29:39,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:29:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:39,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:40,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:40,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:40,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:40,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:40,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:40,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:41,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:42,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:42,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-24 18:29:42,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 18:29:42,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2782 [2020-09-24 18:29:42,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:42,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:29:42,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 18:29:42,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:29:42,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:29:42,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:29:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:42,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:42,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:42,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:29:42,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:42,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 18:29:42,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:42,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:29:42,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:29:42,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:29:42,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:29:42,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 18:29:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:42,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:42,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:42,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:29:42,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:42,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 18:29:42,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:42,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:29:42,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 18:29:42,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:29:42,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:29:42,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:29:42,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1868183000] [2020-09-24 18:29:42,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:29:42,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:29:42,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37482260] [2020-09-24 18:29:42,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:29:42,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:29:42,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:29:42,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:29:42,872 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 3 states. [2020-09-24 18:29:43,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:29:43,193 INFO L93 Difference]: Finished difference Result 254 states and 290 transitions. [2020-09-24 18:29:43,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:29:43,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-09-24 18:29:43,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:29:43,209 INFO L225 Difference]: With dead ends: 254 [2020-09-24 18:29:43,210 INFO L226 Difference]: Without dead ends: 111 [2020-09-24 18:29:43,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:29:43,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-09-24 18:29:43,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-09-24 18:29:43,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-09-24 18:29:43,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2020-09-24 18:29:43,294 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 51 [2020-09-24 18:29:43,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:29:43,295 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2020-09-24 18:29:43,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:29:43,295 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2020-09-24 18:29:43,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-24 18:29:43,298 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:29:43,299 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] [2020-09-24 18:29:43,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:29:43,299 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:29:43,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:29:43,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1128985001, now seen corresponding path program 1 times [2020-09-24 18:29:43,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:29:43,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198234788] [2020-09-24 18:29:43,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:29:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:43,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:43,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:43,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:43,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:44,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:44,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:44,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:44,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:45,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:46,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:48,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:48,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 18:29:48,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 18:29:48,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 18:29:48,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:48,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:29:48,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 18:29:48,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:29:48,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:29:48,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:29:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:48,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:48,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:48,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:29:48,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:48,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:29:48,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:48,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:29:48,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:29:48,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:29:48,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:29:48,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 18:29:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:48,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:48,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:48,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:29:48,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:48,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:29:48,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:48,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:29:48,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 18:29:48,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:29:48,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:29:48,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:29:48,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198234788] [2020-09-24 18:29:48,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:29:48,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:29:48,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725853974] [2020-09-24 18:29:48,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:29:48,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:29:48,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:29:48,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:29:48,411 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand 4 states. [2020-09-24 18:29:48,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:29:48,674 INFO L93 Difference]: Finished difference Result 199 states and 219 transitions. [2020-09-24 18:29:48,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:29:48,675 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2020-09-24 18:29:48,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:29:48,677 INFO L225 Difference]: With dead ends: 199 [2020-09-24 18:29:48,677 INFO L226 Difference]: Without dead ends: 112 [2020-09-24 18:29:48,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:29:48,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-24 18:29:48,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-09-24 18:29:48,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-24 18:29:48,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 122 transitions. [2020-09-24 18:29:48,691 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 122 transitions. Word has length 63 [2020-09-24 18:29:48,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:29:48,691 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 122 transitions. [2020-09-24 18:29:48,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:29:48,692 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 122 transitions. [2020-09-24 18:29:48,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-24 18:29:48,693 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:29:48,693 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] [2020-09-24 18:29:48,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:29:48,694 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:29:48,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:29:48,694 INFO L82 PathProgramCache]: Analyzing trace with hash -698886644, now seen corresponding path program 1 times [2020-09-24 18:29:48,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:29:48,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [588347850] [2020-09-24 18:29:48,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:29:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:48,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:48,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:48,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:48,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:49,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:49,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:49,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:50,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:53,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:53,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 18:29:53,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 18:29:53,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 18:29:53,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:53,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:29:53,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 18:29:53,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:29:53,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:29:53,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:29:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:53,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:53,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:53,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:29:53,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:53,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:29:53,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:53,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:29:53,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:29:53,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:29:53,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:29:53,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-24 18:29:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:53,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:53,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:53,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:29:53,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:53,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:29:53,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:53,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:29:53,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 18:29:53,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:29:53,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:29:53,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:29:53,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [588347850] [2020-09-24 18:29:53,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:29:53,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:29:53,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762365838] [2020-09-24 18:29:53,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:29:53,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:29:53,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:29:53,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:29:53,767 INFO L87 Difference]: Start difference. First operand 112 states and 122 transitions. Second operand 4 states. [2020-09-24 18:29:53,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:29:53,995 INFO L93 Difference]: Finished difference Result 214 states and 234 transitions. [2020-09-24 18:29:53,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:29:53,996 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 65 [2020-09-24 18:29:53,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:29:53,997 INFO L225 Difference]: With dead ends: 214 [2020-09-24 18:29:53,997 INFO L226 Difference]: Without dead ends: 118 [2020-09-24 18:29:53,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:29:54,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-09-24 18:29:54,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 113. [2020-09-24 18:29:54,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-09-24 18:29:54,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 123 transitions. [2020-09-24 18:29:54,009 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 123 transitions. Word has length 65 [2020-09-24 18:29:54,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:29:54,010 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 123 transitions. [2020-09-24 18:29:54,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:29:54,010 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 123 transitions. [2020-09-24 18:29:54,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-24 18:29:54,011 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:29:54,012 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, 1, 1] [2020-09-24 18:29:54,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:29:54,012 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:29:54,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:29:54,013 INFO L82 PathProgramCache]: Analyzing trace with hash 653997614, now seen corresponding path program 1 times [2020-09-24 18:29:54,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:29:54,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481608119] [2020-09-24 18:29:54,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:29:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:54,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:54,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:54,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:54,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:54,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:54,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:54,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:55,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:59,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:59,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:29:59,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 18:29:59,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 18:29:59,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:59,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:29:59,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-24 18:29:59,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 18:29:59,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:29:59,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:29:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:59,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:59,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:59,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:29:59,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:59,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:29:59,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:59,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:29:59,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:29:59,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:29:59,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:29:59,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-24 18:29:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:59,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:59,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:59,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:29:59,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:59,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 18:29:59,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:59,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:29:59,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:29:59,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 18:29:59,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:29:59,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 18:29:59,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481608119] [2020-09-24 18:29:59,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:29:59,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:29:59,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926875434] [2020-09-24 18:29:59,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:29:59,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:29:59,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:29:59,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:29:59,113 INFO L87 Difference]: Start difference. First operand 113 states and 123 transitions. Second operand 6 states. [2020-09-24 18:29:59,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:29:59,338 INFO L93 Difference]: Finished difference Result 113 states and 123 transitions. [2020-09-24 18:29:59,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 18:29:59,339 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2020-09-24 18:29:59,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:29:59,340 INFO L225 Difference]: With dead ends: 113 [2020-09-24 18:29:59,340 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 18:29:59,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:29:59,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 18:29:59,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 18:29:59,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 18:29:59,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 18:29:59,342 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2020-09-24 18:29:59,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:29:59,343 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 18:29:59,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:29:59,343 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 18:29:59,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 18:29:59,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:29:59,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 18:29:59,448 INFO L268 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-09-24 18:29:59,448 INFO L268 CegarLoopResult]: For program point L60-1(line 60) no Hoare annotation was computed. [2020-09-24 18:29:59,448 INFO L268 CegarLoopResult]: For program point L60-2(line 60) no Hoare annotation was computed. [2020-09-24 18:29:59,448 INFO L268 CegarLoopResult]: For program point L60-4(line 60) no Hoare annotation was computed. [2020-09-24 18:29:59,449 INFO L268 CegarLoopResult]: For program point L60-5(line 60) no Hoare annotation was computed. [2020-09-24 18:29:59,449 INFO L268 CegarLoopResult]: For program point L60-6(line 60) no Hoare annotation was computed. [2020-09-24 18:29:59,449 INFO L268 CegarLoopResult]: For program point L60-7(line 60) no Hoare annotation was computed. [2020-09-24 18:29:59,449 INFO L268 CegarLoopResult]: For program point L60-8(line 60) no Hoare annotation was computed. [2020-09-24 18:29:59,449 INFO L268 CegarLoopResult]: For program point L60-9(line 60) no Hoare annotation was computed. [2020-09-24 18:29:59,449 INFO L268 CegarLoopResult]: For program point L52-1(lines 52 73) no Hoare annotation was computed. [2020-09-24 18:29:59,449 INFO L268 CegarLoopResult]: For program point L60-11(line 60) no Hoare annotation was computed. [2020-09-24 18:29:59,450 INFO L271 CegarLoopResult]: At program point L52-3(lines 52 73) the Hoare annotation is: true [2020-09-24 18:29:59,450 INFO L268 CegarLoopResult]: For program point L60-12(line 60) no Hoare annotation was computed. [2020-09-24 18:29:59,450 INFO L268 CegarLoopResult]: For program point L52-4(lines 52 73) no Hoare annotation was computed. [2020-09-24 18:29:59,450 INFO L268 CegarLoopResult]: For program point L60-13(lines 54 72) no Hoare annotation was computed. [2020-09-24 18:29:59,450 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-09-24 18:29:59,450 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-09-24 18:29:59,451 INFO L268 CegarLoopResult]: For program point L53-1(line 53) no Hoare annotation was computed. [2020-09-24 18:29:59,454 INFO L268 CegarLoopResult]: For program point L62(lines 62 64) no Hoare annotation was computed. [2020-09-24 18:29:59,455 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-09-24 18:29:59,455 INFO L268 CegarLoopResult]: For program point L54-1(line 54) no Hoare annotation was computed. [2020-09-24 18:29:59,455 INFO L268 CegarLoopResult]: For program point L54-2(lines 54 72) no Hoare annotation was computed. [2020-09-24 18:29:59,456 INFO L268 CegarLoopResult]: For program point L54-3(lines 54 72) no Hoare annotation was computed. [2020-09-24 18:29:59,456 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-09-24 18:29:59,457 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-24 18:29:59,457 INFO L268 CegarLoopResult]: For program point L56-1(line 56) no Hoare annotation was computed. [2020-09-24 18:29:59,457 INFO L268 CegarLoopResult]: For program point L56-2(line 56) no Hoare annotation was computed. [2020-09-24 18:29:59,457 INFO L268 CegarLoopResult]: For program point L56-4(line 56) no Hoare annotation was computed. [2020-09-24 18:29:59,457 INFO L268 CegarLoopResult]: For program point L56-5(line 56) no Hoare annotation was computed. [2020-09-24 18:29:59,457 INFO L268 CegarLoopResult]: For program point L56-6(line 56) no Hoare annotation was computed. [2020-09-24 18:29:59,458 INFO L268 CegarLoopResult]: For program point L56-7(line 56) no Hoare annotation was computed. [2020-09-24 18:29:59,458 INFO L268 CegarLoopResult]: For program point L56-8(line 56) no Hoare annotation was computed. [2020-09-24 18:29:59,458 INFO L268 CegarLoopResult]: For program point L56-9(line 56) no Hoare annotation was computed. [2020-09-24 18:29:59,458 INFO L268 CegarLoopResult]: For program point L56-11(line 56) no Hoare annotation was computed. [2020-09-24 18:29:59,459 INFO L268 CegarLoopResult]: For program point L56-12(line 56) no Hoare annotation was computed. [2020-09-24 18:29:59,459 INFO L268 CegarLoopResult]: For program point L56-13(line 56) no Hoare annotation was computed. [2020-09-24 18:29:59,459 INFO L268 CegarLoopResult]: For program point L56-14(line 56) no Hoare annotation was computed. [2020-09-24 18:29:59,459 INFO L268 CegarLoopResult]: For program point L56-15(line 56) no Hoare annotation was computed. [2020-09-24 18:29:59,459 INFO L268 CegarLoopResult]: For program point L73(lines 52 73) no Hoare annotation was computed. [2020-09-24 18:29:59,459 INFO L268 CegarLoopResult]: For program point L56-16(line 56) no Hoare annotation was computed. [2020-09-24 18:29:59,459 INFO L268 CegarLoopResult]: For program point L73-1(line 73) no Hoare annotation was computed. [2020-09-24 18:29:59,460 INFO L271 CegarLoopResult]: At program point L56-17(line 56) the Hoare annotation is: true [2020-09-24 18:29:59,460 INFO L268 CegarLoopResult]: For program point L73-2(line 73) no Hoare annotation was computed. [2020-09-24 18:29:59,460 INFO L268 CegarLoopResult]: For program point L56-18(line 56) no Hoare annotation was computed. [2020-09-24 18:29:59,461 INFO L264 CegarLoopResult]: At program point L65(line 65) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2020-09-24 18:29:59,461 INFO L268 CegarLoopResult]: For program point L65-1(line 65) no Hoare annotation was computed. [2020-09-24 18:29:59,462 INFO L268 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-09-24 18:29:59,462 INFO L268 CegarLoopResult]: For program point L57-1(line 57) no Hoare annotation was computed. [2020-09-24 18:29:59,462 INFO L268 CegarLoopResult]: For program point L57-2(line 57) no Hoare annotation was computed. [2020-09-24 18:29:59,462 INFO L268 CegarLoopResult]: For program point L57-3(line 57) no Hoare annotation was computed. [2020-09-24 18:29:59,462 INFO L268 CegarLoopResult]: For program point L57-4(line 57) no Hoare annotation was computed. [2020-09-24 18:29:59,463 INFO L268 CegarLoopResult]: For program point L57-6(line 57) no Hoare annotation was computed. [2020-09-24 18:29:59,463 INFO L268 CegarLoopResult]: For program point L57-7(line 57) no Hoare annotation was computed. [2020-09-24 18:29:59,463 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-24 18:29:59,463 INFO L268 CegarLoopResult]: For program point L49-1(line 49) no Hoare annotation was computed. [2020-09-24 18:29:59,463 INFO L268 CegarLoopResult]: For program point L49-2(line 49) no Hoare annotation was computed. [2020-09-24 18:29:59,463 INFO L264 CegarLoopResult]: At program point L66(line 66) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2020-09-24 18:29:59,463 INFO L268 CegarLoopResult]: For program point L66-1(line 66) no Hoare annotation was computed. [2020-09-24 18:29:59,464 INFO L268 CegarLoopResult]: For program point parse_expression_listFINAL(lines 47 75) no Hoare annotation was computed. [2020-09-24 18:29:59,464 INFO L264 CegarLoopResult]: At program point parse_expression_listENTRY(lines 47 75) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-24 18:29:59,464 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-09-24 18:29:59,464 INFO L268 CegarLoopResult]: For program point L50-1(lines 48 75) no Hoare annotation was computed. [2020-09-24 18:29:59,464 INFO L268 CegarLoopResult]: For program point L50-2(line 50) no Hoare annotation was computed. [2020-09-24 18:29:59,464 INFO L268 CegarLoopResult]: For program point L50-3(line 50) no Hoare annotation was computed. [2020-09-24 18:29:59,465 INFO L268 CegarLoopResult]: For program point L50-4(line 50) no Hoare annotation was computed. [2020-09-24 18:29:59,466 INFO L268 CegarLoopResult]: For program point L50-5(line 50) no Hoare annotation was computed. [2020-09-24 18:29:59,466 INFO L268 CegarLoopResult]: For program point L50-6(line 50) no Hoare annotation was computed. [2020-09-24 18:29:59,466 INFO L268 CegarLoopResult]: For program point L50-7(line 50) no Hoare annotation was computed. [2020-09-24 18:29:59,466 INFO L268 CegarLoopResult]: For program point L50-8(line 50) no Hoare annotation was computed. [2020-09-24 18:29:59,466 INFO L268 CegarLoopResult]: For program point L50-9(line 50) no Hoare annotation was computed. [2020-09-24 18:29:59,466 INFO L268 CegarLoopResult]: For program point L67(lines 61 70) no Hoare annotation was computed. [2020-09-24 18:29:59,466 INFO L268 CegarLoopResult]: For program point parse_expression_listEXIT(lines 47 75) no Hoare annotation was computed. [2020-09-24 18:29:59,467 INFO L268 CegarLoopResult]: For program point L59-1(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,467 INFO L268 CegarLoopResult]: For program point L59-2(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,467 INFO L268 CegarLoopResult]: For program point L59-3(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,467 INFO L268 CegarLoopResult]: For program point L59-4(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,467 INFO L268 CegarLoopResult]: For program point L59-6(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,467 INFO L268 CegarLoopResult]: For program point L59-7(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,467 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-24 18:29:59,467 INFO L268 CegarLoopResult]: For program point L59-8(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,468 INFO L268 CegarLoopResult]: For program point L59-10(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,468 INFO L268 CegarLoopResult]: For program point L59-11(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,468 INFO L268 CegarLoopResult]: For program point L59-12(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,468 INFO L268 CegarLoopResult]: For program point L59-13(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,468 INFO L268 CegarLoopResult]: For program point L59-14(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,468 INFO L268 CegarLoopResult]: For program point L59-16(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,468 INFO L268 CegarLoopResult]: For program point L59-17(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,469 INFO L268 CegarLoopResult]: For program point L59-18(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,469 INFO L268 CegarLoopResult]: For program point L59-19(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,469 INFO L268 CegarLoopResult]: For program point L59-20(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,470 INFO L268 CegarLoopResult]: For program point L59-21(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,470 INFO L268 CegarLoopResult]: For program point L59-22(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,470 INFO L271 CegarLoopResult]: At program point L59-23(line 59) the Hoare annotation is: true [2020-09-24 18:29:59,470 INFO L268 CegarLoopResult]: For program point L59-24(line 59) no Hoare annotation was computed. [2020-09-24 18:29:59,470 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-24 18:29:59,470 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-24 18:29:59,470 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 18:29:59,470 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|)) [2020-09-24 18:29:59,471 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 18:29:59,471 INFO L268 CegarLoopResult]: For program point r_strncpyFINAL(line 31) no Hoare annotation was computed. [2020-09-24 18:29:59,471 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-24 18:29:59,471 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-09-24 18:29:59,471 INFO L268 CegarLoopResult]: For program point L31-2(line 31) no Hoare annotation was computed. [2020-09-24 18:29:59,472 INFO L268 CegarLoopResult]: For program point r_strncpyEXIT(line 31) no Hoare annotation was computed. [2020-09-24 18:29:59,472 INFO L268 CegarLoopResult]: For program point L31-3(line 31) no Hoare annotation was computed. [2020-09-24 18:29:59,472 INFO L268 CegarLoopResult]: For program point L31-4(line 31) no Hoare annotation was computed. [2020-09-24 18:29:59,472 INFO L271 CegarLoopResult]: At program point r_strncpyENTRY(line 31) the Hoare annotation is: true [2020-09-24 18:29:59,472 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 18:29:59,472 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 18:29:59,472 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 18:29:59,472 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 18:29:59,473 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 76 85) no Hoare annotation was computed. [2020-09-24 18:29:59,473 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-09-24 18:29:59,473 INFO L268 CegarLoopResult]: For program point L83-1(line 83) no Hoare annotation was computed. [2020-09-24 18:29:59,473 INFO L268 CegarLoopResult]: For program point L79-2(lines 79 81) no Hoare annotation was computed. [2020-09-24 18:29:59,473 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 76 85) no Hoare annotation was computed. [2020-09-24 18:29:59,473 INFO L268 CegarLoopResult]: For program point L79-3(line 79) no Hoare annotation was computed. [2020-09-24 18:29:59,473 INFO L268 CegarLoopResult]: For program point L79-4(line 79) no Hoare annotation was computed. [2020-09-24 18:29:59,473 INFO L271 CegarLoopResult]: At program point L79-5(lines 79 81) the Hoare annotation is: true [2020-09-24 18:29:59,474 INFO L268 CegarLoopResult]: For program point L79-6(lines 79 81) no Hoare annotation was computed. [2020-09-24 18:29:59,474 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 76 85) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-24 18:29:59,474 INFO L268 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-09-24 18:29:59,475 INFO L271 CegarLoopResult]: At program point L82(line 82) the Hoare annotation is: true [2020-09-24 18:29:59,475 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-09-24 18:29:59,475 INFO L268 CegarLoopResult]: For program point L80-1(line 80) no Hoare annotation was computed. [2020-09-24 18:29:59,475 INFO L268 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-09-24 18:29:59,475 INFO L268 CegarLoopResult]: For program point L80-2(line 80) no Hoare annotation was computed. [2020-09-24 18:29:59,475 INFO L268 CegarLoopResult]: For program point L78-1(line 78) no Hoare annotation was computed. [2020-09-24 18:29:59,476 INFO L268 CegarLoopResult]: For program point L78-2(line 78) no Hoare annotation was computed. [2020-09-24 18:29:59,476 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-24 18:29:59,476 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-09-24 18:29:59,476 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 18:29:59,476 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-09-24 18:29:59,476 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-09-24 18:29:59,476 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-09-24 18:29:59,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:29:59 BoogieIcfgContainer [2020-09-24 18:29:59,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:29:59,496 INFO L168 Benchmark]: Toolchain (without parser) took 21076.63 ms. Allocated memory was 135.8 MB in the beginning and 404.2 MB in the end (delta: 268.4 MB). Free memory was 98.4 MB in the beginning and 234.6 MB in the end (delta: -136.2 MB). Peak memory consumption was 132.2 MB. Max. memory is 7.1 GB. [2020-09-24 18:29:59,497 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 135.8 MB. Free memory was 117.3 MB in the beginning and 116.9 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. [2020-09-24 18:29:59,499 INFO L168 Benchmark]: CACSL2BoogieTranslator took 467.93 ms. Allocated memory was 135.8 MB in the beginning and 198.7 MB in the end (delta: 62.9 MB). Free memory was 98.0 MB in the beginning and 175.7 MB in the end (delta: -77.7 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-24 18:29:59,501 INFO L168 Benchmark]: Boogie Preprocessor took 59.58 ms. Allocated memory is still 198.7 MB. Free memory was 175.7 MB in the beginning and 172.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:29:59,507 INFO L168 Benchmark]: RCFGBuilder took 662.45 ms. Allocated memory is still 198.7 MB. Free memory was 172.5 MB in the beginning and 138.2 MB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2020-09-24 18:29:59,509 INFO L168 Benchmark]: TraceAbstraction took 19876.67 ms. Allocated memory was 198.7 MB in the beginning and 404.2 MB in the end (delta: 205.5 MB). Free memory was 138.2 MB in the beginning and 234.6 MB in the end (delta: -96.4 MB). Peak memory consumption was 109.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:29:59,521 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 135.8 MB. Free memory was 117.3 MB in the beginning and 116.9 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 467.93 ms. Allocated memory was 135.8 MB in the beginning and 198.7 MB in the end (delta: 62.9 MB). Free memory was 98.0 MB in the beginning and 175.7 MB in the end (delta: -77.7 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.58 ms. Allocated memory is still 198.7 MB. Free memory was 175.7 MB in the beginning and 172.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 662.45 ms. Allocated memory is still 198.7 MB. Free memory was 172.5 MB in the beginning and 138.2 MB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19876.67 ms. Allocated memory was 198.7 MB in the beginning and 404.2 MB in the end (delta: 205.5 MB). Free memory was 138.2 MB in the beginning and 234.6 MB in the end (delta: -96.4 MB). Peak memory consumption was 109.1 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: 19.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 493 SDtfs, 76 SDslu, 485 SDs, 0 SdLazy, 540 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 32 PreInvPairs, 39 NumberOfFragments, 35 HoareAnnotationTreeSize, 32 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 40 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 18.1s InterpolantComputationTime, 251 NumberOfCodeBlocks, 251 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 247 ConstructedInterpolants, 0 QuantifiedInterpolants, 19110 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...