/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-patterns/array1_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 18:24:40,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 18:24:40,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 18:24:40,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 18:24:40,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 18:24:40,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 18:24:40,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 18:24:40,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 18:24:40,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 18:24:40,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 18:24:40,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 18:24:40,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 18:24:40,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 18:24:40,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 18:24:40,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 18:24:40,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 18:24:40,945 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 18:24:40,946 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 18:24:40,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 18:24:40,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 18:24:40,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 18:24:40,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 18:24:40,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 18:24:40,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 18:24:40,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 18:24:40,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 18:24:40,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 18:24:40,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 18:24:40,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 18:24:40,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 18:24:40,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 18:24:40,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 18:24:40,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 18:24:40,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 18:24:40,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 18:24:40,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 18:24:40,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 18:24:40,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 18:24:40,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 18:24:40,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 18:24:40,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 18:24:40,998 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 18:24:41,019 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 18:24:41,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 18:24:41,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 18:24:41,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 18:24:41,021 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 18:24:41,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 18:24:41,021 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 18:24:41,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 18:24:41,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 18:24:41,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 18:24:41,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 18:24:41,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 18:24:41,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 18:24:41,023 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 18:24:41,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 18:24:41,023 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 18:24:41,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 18:24:41,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 18:24:41,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 18:24:41,024 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 18:24:41,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 18:24:41,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 18:24:41,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 18:24:41,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 18:24:41,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 18:24:41,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 18:24:41,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 18:24:41,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 18:24:41,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 18:24:41,026 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 18:24:41,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 18:24:41,365 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 18:24:41,368 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 18:24:41,370 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 18:24:41,370 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 18:24:41,371 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-patterns/array1_pattern.c [2020-10-14 18:24:41,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/174fcc8cc/254d222dac264ee9bbc992d635f1f97c/FLAG3b98a32f9 [2020-10-14 18:24:41,897 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 18:24:41,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-patterns/array1_pattern.c [2020-10-14 18:24:41,906 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/174fcc8cc/254d222dac264ee9bbc992d635f1f97c/FLAG3b98a32f9 [2020-10-14 18:24:42,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/174fcc8cc/254d222dac264ee9bbc992d635f1f97c [2020-10-14 18:24:42,321 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 18:24:42,323 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 18:24:42,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 18:24:42,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 18:24:42,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 18:24:42,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:24:42" (1/1) ... [2020-10-14 18:24:42,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3247021c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:42, skipping insertion in model container [2020-10-14 18:24:42,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:24:42" (1/1) ... [2020-10-14 18:24:42,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 18:24:42,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 18:24:42,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:24:42,593 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 18:24:42,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:24:42,648 INFO L208 MainTranslator]: Completed translation [2020-10-14 18:24:42,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:42 WrapperNode [2020-10-14 18:24:42,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 18:24:42,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 18:24:42,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 18:24:42,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 18:24:42,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:42" (1/1) ... [2020-10-14 18:24:42,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:42" (1/1) ... [2020-10-14 18:24:42,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:42" (1/1) ... [2020-10-14 18:24:42,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:42" (1/1) ... [2020-10-14 18:24:42,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:42" (1/1) ... [2020-10-14 18:24:42,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:42" (1/1) ... [2020-10-14 18:24:42,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:42" (1/1) ... [2020-10-14 18:24:42,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 18:24:42,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 18:24:42,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 18:24:42,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 18:24:42,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:42" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 18:24:42,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 18:24:42,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 18:24:42,868 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 18:24:42,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 18:24:42,869 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 18:24:42,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 18:24:42,869 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 18:24:42,869 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 18:24:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 18:24:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 18:24:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2020-10-14 18:24:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 18:24:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 18:24:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 18:24:42,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 18:24:42,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 18:24:42,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 18:24:42,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 18:24:43,180 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 18:24:43,181 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-14 18:24:43,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:24:43 BoogieIcfgContainer [2020-10-14 18:24:43,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 18:24:43,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 18:24:43,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 18:24:43,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 18:24:43,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 06:24:42" (1/3) ... [2020-10-14 18:24:43,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15809959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:24:43, skipping insertion in model container [2020-10-14 18:24:43,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:42" (2/3) ... [2020-10-14 18:24:43,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15809959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:24:43, skipping insertion in model container [2020-10-14 18:24:43,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:24:43" (3/3) ... [2020-10-14 18:24:43,200 INFO L109 eAbstractionObserver]: Analyzing ICFG array1_pattern.c [2020-10-14 18:24:43,214 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 18:24:43,223 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 18:24:43,240 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 18:24:43,274 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 18:24:43,274 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 18:24:43,275 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 18:24:43,275 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 18:24:43,278 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 18:24:43,278 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 18:24:43,279 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 18:24:43,279 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 18:24:43,304 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-14 18:24:43,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-14 18:24:43,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:24:43,313 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] [2020-10-14 18:24:43,313 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:24:43,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:24:43,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1226662526, now seen corresponding path program 1 times [2020-10-14 18:24:43,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:24:43,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281248377] [2020-10-14 18:24:43,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:24:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:24:43,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:24:43,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:24:43,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:24:43,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:24:43,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 18:24:43,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 18:24:43,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 495 [2020-10-14 18:24:43,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:24:43,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:24:43,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 18:24:43,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 18:24:43,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 18:24:43,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 18:24:44,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:24:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:24:44,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:24:44,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:24:44,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:24:44,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:24:44,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 18:24:44,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:24:44,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:24:44,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:24:44,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:24:44,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:24:44,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:24:44,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 18:24:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:24:44,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:24:44,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:24:44,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:24:44,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:24:44,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 18:24:44,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 18:24:44,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:24:44,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:24:44,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:24:44,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:24:44,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:24:44,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:24:44,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 18:24:44,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281248377] [2020-10-14 18:24:44,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 18:24:44,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 18:24:44,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634605828] [2020-10-14 18:24:44,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 18:24:44,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:24:44,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 18:24:44,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 18:24:44,151 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 6 states. [2020-10-14 18:24:44,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:24:44,448 INFO L93 Difference]: Finished difference Result 68 states and 92 transitions. [2020-10-14 18:24:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 18:24:44,451 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-10-14 18:24:44,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:24:44,461 INFO L225 Difference]: With dead ends: 68 [2020-10-14 18:24:44,462 INFO L226 Difference]: Without dead ends: 27 [2020-10-14 18:24:44,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-14 18:24:44,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-14 18:24:44,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-14 18:24:44,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-14 18:24:44,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2020-10-14 18:24:44,526 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 20 [2020-10-14 18:24:44,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:24:44,527 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2020-10-14 18:24:44,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 18:24:44,527 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2020-10-14 18:24:44,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-14 18:24:44,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:24:44,531 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:24:44,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 18:24:44,531 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:24:44,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:24:44,532 INFO L82 PathProgramCache]: Analyzing trace with hash 328288985, now seen corresponding path program 1 times [2020-10-14 18:24:44,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:24:44,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [292908413] [2020-10-14 18:24:44,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:24:44,563 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-14 18:24:44,564 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-14 18:24:44,564 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 18:24:44,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 18:24:44,588 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-14 18:24:44,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:24:44 BoogieIcfgContainer [2020-10-14 18:24:44,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 18:24:44,593 INFO L168 Benchmark]: Toolchain (without parser) took 2269.03 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 102.9 MB in the beginning and 96.5 MB in the end (delta: 6.4 MB). Peak memory consumption was 63.0 MB. Max. memory is 7.1 GB. [2020-10-14 18:24:44,594 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.4 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-14 18:24:44,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.56 ms. Allocated memory is still 147.3 MB. Free memory was 102.9 MB in the beginning and 91.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-10-14 18:24:44,596 INFO L168 Benchmark]: Boogie Preprocessor took 148.28 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 91.9 MB in the beginning and 181.0 MB in the end (delta: -89.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-10-14 18:24:44,597 INFO L168 Benchmark]: RCFGBuilder took 389.37 ms. Allocated memory is still 203.9 MB. Free memory was 181.0 MB in the beginning and 163.4 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. [2020-10-14 18:24:44,598 INFO L168 Benchmark]: TraceAbstraction took 1398.47 ms. Allocated memory is still 203.9 MB. Free memory was 163.4 MB in the beginning and 96.5 MB in the end (delta: 66.9 MB). Peak memory consumption was 66.9 MB. Max. memory is 7.1 GB. [2020-10-14 18:24:44,602 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.4 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 326.56 ms. Allocated memory is still 147.3 MB. Free memory was 102.9 MB in the beginning and 91.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 148.28 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 91.9 MB in the beginning and 181.0 MB in the end (delta: -89.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 389.37 ms. Allocated memory is still 203.9 MB. Free memory was 181.0 MB in the beginning and 163.4 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1398.47 ms. Allocated memory is still 203.9 MB. Free memory was 163.4 MB in the beginning and 96.5 MB in the end (delta: 66.9 MB). Peak memory consumption was 66.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 28]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L32] signed long long ARR_SIZE ; [L36] ARR_SIZE = __VERIFIER_nondet_short() [L37] CALL assume_abort_if_not(ARR_SIZE > 0) [L26] COND FALSE !(!cond) [L37] RET assume_abort_if_not(ARR_SIZE > 0) [L39] int array1[ARR_SIZE] ; [L40] int array2[ARR_SIZE] ; [L41] int count = 0, num = -1 ; [L42] int temp ; [L43] short index ; [L44] signed long long sum = 0 ; [L46] count=0 [L46] COND FALSE !(count=0 && index < ARR_SIZE) [L26] COND FALSE !(!cond) [L56] RET assume_abort_if_not(index>=0 && index < ARR_SIZE) [L58] array1[index] = num*(num*index) [L59] array2[ARR_SIZE-1-index] = num * index [L61] temp = __VERIFIER_nondet_int() [L62] COND TRUE temp == 0 [L65] count=0 [L65] COND TRUE count