/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/array9_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 18:24:56,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 18:24:56,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 18:24:56,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 18:24:56,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 18:24:56,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 18:24:56,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 18:24:56,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 18:24:56,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 18:24:56,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 18:24:56,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 18:24:56,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 18:24:56,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 18:24:56,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 18:24:56,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 18:24:56,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 18:24:56,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 18:24:56,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 18:24:56,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 18:24:56,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 18:24:56,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 18:24:56,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 18:24:56,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 18:24:56,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 18:24:56,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 18:24:56,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 18:24:56,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 18:24:56,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 18:24:56,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 18:24:56,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 18:24:56,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 18:24:56,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 18:24:56,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 18:24:56,805 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 18:24:56,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 18:24:56,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 18:24:56,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 18:24:56,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 18:24:56,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 18:24:56,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 18:24:56,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 18:24:56,810 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 18:24:56,852 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 18:24:56,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 18:24:56,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 18:24:56,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 18:24:56,855 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 18:24:56,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 18:24:56,856 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 18:24:56,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 18:24:56,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 18:24:56,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 18:24:56,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 18:24:56,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 18:24:56,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 18:24:56,859 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 18:24:56,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 18:24:56,859 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 18:24:56,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 18:24:56,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 18:24:56,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 18:24:56,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 18:24:56,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 18:24:56,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 18:24:56,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 18:24:56,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 18:24:56,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 18:24:56,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 18:24:56,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 18:24:56,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 18:24:56,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 18:24:56,862 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 18:24:57,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 18:24:57,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 18:24:57,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 18:24:57,218 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 18:24:57,219 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 18:24:57,220 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-patterns/array9_pattern.c [2020-10-14 18:24:57,281 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b13fe52a7/46419d5bfa4449d594ac6d81806fc44c/FLAG36220c04c [2020-10-14 18:24:57,759 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 18:24:57,759 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-patterns/array9_pattern.c [2020-10-14 18:24:57,768 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b13fe52a7/46419d5bfa4449d594ac6d81806fc44c/FLAG36220c04c [2020-10-14 18:24:58,071 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b13fe52a7/46419d5bfa4449d594ac6d81806fc44c [2020-10-14 18:24:58,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 18:24:58,086 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 18:24:58,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 18:24:58,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 18:24:58,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 18:24:58,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:24:58" (1/1) ... [2020-10-14 18:24:58,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@212fb040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:58, skipping insertion in model container [2020-10-14 18:24:58,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:24:58" (1/1) ... [2020-10-14 18:24:58,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 18:24:58,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 18:24:58,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:24:58,417 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 18:24:58,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:24:58,629 INFO L208 MainTranslator]: Completed translation [2020-10-14 18:24:58,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:58 WrapperNode [2020-10-14 18:24:58,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 18:24:58,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 18:24:58,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 18:24:58,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 18:24:58,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:58" (1/1) ... [2020-10-14 18:24:58,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:58" (1/1) ... [2020-10-14 18:24:58,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:58" (1/1) ... [2020-10-14 18:24:58,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:58" (1/1) ... [2020-10-14 18:24:58,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:58" (1/1) ... [2020-10-14 18:24:58,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:58" (1/1) ... [2020-10-14 18:24:58,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:58" (1/1) ... [2020-10-14 18:24:58,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 18:24:58,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 18:24:58,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 18:24:58,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 18:24:58,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:58" (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 18:24:58,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 18:24:58,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 18:24:58,771 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 18:24:58,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 18:24:58,771 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 18:24:58,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 18:24:58,772 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 18:24:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 18:24:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 18:24:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 18:24:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2020-10-14 18:24:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 18:24:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 18:24:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 18:24:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 18:24:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 18:24:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 18:24:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 18:24:59,121 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 18:24:59,121 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-14 18:24:59,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:24:59 BoogieIcfgContainer [2020-10-14 18:24:59,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 18:24:59,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 18:24:59,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 18:24:59,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 18:24:59,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 06:24:58" (1/3) ... [2020-10-14 18:24:59,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@457bbc72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:24:59, skipping insertion in model container [2020-10-14 18:24:59,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:58" (2/3) ... [2020-10-14 18:24:59,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@457bbc72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:24:59, skipping insertion in model container [2020-10-14 18:24:59,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:24:59" (3/3) ... [2020-10-14 18:24:59,138 INFO L109 eAbstractionObserver]: Analyzing ICFG array9_pattern.c [2020-10-14 18:24:59,147 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 18:24:59,155 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 18:24:59,170 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 18:24:59,197 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 18:24:59,197 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 18:24:59,197 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 18:24:59,197 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 18:24:59,198 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 18:24:59,198 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 18:24:59,198 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 18:24:59,198 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 18:24:59,216 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-10-14 18:24:59,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-14 18:24:59,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:24:59,223 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] [2020-10-14 18:24:59,223 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:24:59,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:24:59,230 INFO L82 PathProgramCache]: Analyzing trace with hash -945511344, now seen corresponding path program 1 times [2020-10-14 18:24:59,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:24:59,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353013770] [2020-10-14 18:24:59,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:24:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:24:59,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:24:59,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:24:59,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:24:59,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 18:24:59,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 18:24:59,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-14 18:24:59,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:24:59,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:24:59,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:24:59,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 18:24:59,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:24:59,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 18:24:59,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:24:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:24:59,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:24:59,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:24:59,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:24:59,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:24:59,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 18:24:59,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:24:59,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:24:59,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:24:59,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:24:59,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:24:59,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:24:59,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 18:24:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:24:59,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:24:59,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:24:59,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:24:59,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 18:24:59,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 18:24:59,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 18:24:59,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:24:59,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:24:59,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:24:59,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 18:24:59,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:24:59,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:24:59,684 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 18:24:59,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353013770] [2020-10-14 18:24:59,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 18:24:59,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 18:24:59,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316998014] [2020-10-14 18:24:59,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 18:24:59,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:24:59,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 18:24:59,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 18:24:59,712 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 3 states. [2020-10-14 18:24:59,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:24:59,828 INFO L93 Difference]: Finished difference Result 65 states and 87 transitions. [2020-10-14 18:24:59,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 18:24:59,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-10-14 18:24:59,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:24:59,840 INFO L225 Difference]: With dead ends: 65 [2020-10-14 18:24:59,840 INFO L226 Difference]: Without dead ends: 29 [2020-10-14 18:24:59,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 18:24:59,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-14 18:24:59,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-14 18:24:59,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-14 18:24:59,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2020-10-14 18:24:59,891 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 21 [2020-10-14 18:24:59,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:24:59,891 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2020-10-14 18:24:59,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 18:24:59,892 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-10-14 18:24:59,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-14 18:24:59,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:24:59,894 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:24:59,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 18:24:59,895 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:24:59,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:24:59,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1477566463, now seen corresponding path program 1 times [2020-10-14 18:24:59,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:24:59,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919733440] [2020-10-14 18:24:59,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:24:59,918 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-14 18:24:59,918 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-14 18:24:59,918 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 18:24:59,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 18:24:59,940 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-14 18:24:59,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:24:59 BoogieIcfgContainer [2020-10-14 18:24:59,941 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 18:24:59,943 INFO L168 Benchmark]: Toolchain (without parser) took 1857.72 ms. Allocated memory was 148.4 MB in the beginning and 207.6 MB in the end (delta: 59.2 MB). Free memory was 104.4 MB in the beginning and 120.9 MB in the end (delta: -16.4 MB). Peak memory consumption was 42.8 MB. Max. memory is 7.1 GB. [2020-10-14 18:24:59,945 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.5 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 18:24:59,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 544.83 ms. Allocated memory was 148.4 MB in the beginning and 207.6 MB in the end (delta: 59.2 MB). Free memory was 104.4 MB in the beginning and 186.3 MB in the end (delta: -81.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-10-14 18:24:59,946 INFO L168 Benchmark]: Boogie Preprocessor took 59.39 ms. Allocated memory is still 207.6 MB. Free memory was 186.3 MB in the beginning and 184.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-10-14 18:24:59,947 INFO L168 Benchmark]: RCFGBuilder took 437.25 ms. Allocated memory is still 207.6 MB. Free memory was 184.0 MB in the beginning and 166.5 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2020-10-14 18:24:59,948 INFO L168 Benchmark]: TraceAbstraction took 810.42 ms. Allocated memory is still 207.6 MB. Free memory was 165.6 MB in the beginning and 120.9 MB in the end (delta: 44.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 7.1 GB. [2020-10-14 18:24:59,952 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.5 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 544.83 ms. Allocated memory was 148.4 MB in the beginning and 207.6 MB in the end (delta: 59.2 MB). Free memory was 104.4 MB in the beginning and 186.3 MB in the end (delta: -81.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.39 ms. Allocated memory is still 207.6 MB. Free memory was 186.3 MB in the beginning and 184.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 437.25 ms. Allocated memory is still 207.6 MB. Free memory was 184.0 MB in the beginning and 166.5 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 810.42 ms. Allocated memory is still 207.6 MB. Free memory was 165.6 MB in the beginning and 120.9 MB in the end (delta: 44.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 31]: 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: [L35] signed long long ARR_SIZE ; [L39] ARR_SIZE = (signed long long)__VERIFIER_nondet_short() [L40] CALL assume_abort_if_not(ARR_SIZE > 0) [L29] COND FALSE !(!cond) [L40] RET assume_abort_if_not(ARR_SIZE > 0) [L42] int array1[ARR_SIZE] ; [L43] int array2[ARR_SIZE] ; [L44] int count = 0, num = -1; [L45] signed long long sum = 0 ; [L46] int temp ; [L47] short index ; [L49] count=0 [L49] COND FALSE !(count=0 && index < ARR_SIZE) [L29] COND FALSE !(!cond) [L61] RET assume_abort_if_not(index>=0 && index < ARR_SIZE) [L63] array1[index] = num * (num * count) [L64] EXPR (index % 3 == 0) ? array2[index] : (num * count) [L64] EXPR array2[index] [L64] EXPR (index % 3 == 0) ? array2[index] : (num * count) [L64] array2[index] = (index % 3 == 0) ? array2[index] : (num * count) [L67] temp = __VERIFIER_nondet_int() [L68] COND TRUE temp == 0 [L71] count=0 [L71] COND FALSE !(count