/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-programs/partial_mod_count_limited_3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 09:27:47,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 09:27:47,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 09:27:47,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 09:27:47,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 09:27:47,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 09:27:47,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 09:27:47,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 09:27:47,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 09:27:47,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 09:27:47,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 09:27:47,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 09:27:47,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 09:27:47,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 09:27:47,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 09:27:47,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 09:27:47,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 09:27:47,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 09:27:47,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 09:27:47,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 09:27:48,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 09:27:48,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 09:27:48,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 09:27:48,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 09:27:48,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 09:27:48,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 09:27:48,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 09:27:48,020 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 09:27:48,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 09:27:48,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 09:27:48,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 09:27:48,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 09:27:48,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 09:27:48,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 09:27:48,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 09:27:48,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 09:27:48,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 09:27:48,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 09:27:48,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 09:27:48,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 09:27:48,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 09:27:48,038 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 09:27:48,093 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 09:27:48,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 09:27:48,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 09:27:48,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 09:27:48,099 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 09:27:48,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 09:27:48,099 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 09:27:48,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 09:27:48,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 09:27:48,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 09:27:48,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 09:27:48,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 09:27:48,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 09:27:48,102 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 09:27:48,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 09:27:48,102 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 09:27:48,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 09:27:48,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 09:27:48,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 09:27:48,103 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 09:27:48,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 09:27:48,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 09:27:48,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 09:27:48,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 09:27:48,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 09:27:48,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 09:27:48,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 09:27:48,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 09:27:48,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 09:27:48,105 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 09:27:48,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 09:27:48,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 09:27:48,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 09:27:48,566 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 09:27:48,567 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 09:27:48,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-programs/partial_mod_count_limited_3.c [2020-10-28 09:27:48,661 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2d228913/89598d78515c4a5ba6ed628d087584c7/FLAGefd518746 [2020-10-28 09:27:49,333 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 09:27:49,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-programs/partial_mod_count_limited_3.c [2020-10-28 09:27:49,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2d228913/89598d78515c4a5ba6ed628d087584c7/FLAGefd518746 [2020-10-28 09:27:49,676 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2d228913/89598d78515c4a5ba6ed628d087584c7 [2020-10-28 09:27:49,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 09:27:49,695 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 09:27:49,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 09:27:49,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 09:27:49,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 09:27:49,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:27:49" (1/1) ... [2020-10-28 09:27:49,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b0f4754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:49, skipping insertion in model container [2020-10-28 09:27:49,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:27:49" (1/1) ... [2020-10-28 09:27:49,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 09:27:49,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 09:27:49,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:27:49,965 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 09:27:50,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:27:50,047 INFO L208 MainTranslator]: Completed translation [2020-10-28 09:27:50,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:50 WrapperNode [2020-10-28 09:27:50,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 09:27:50,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 09:27:50,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 09:27:50,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 09:27:50,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:50" (1/1) ... [2020-10-28 09:27:50,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:50" (1/1) ... [2020-10-28 09:27:50,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:50" (1/1) ... [2020-10-28 09:27:50,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:50" (1/1) ... [2020-10-28 09:27:50,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:50" (1/1) ... [2020-10-28 09:27:50,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:50" (1/1) ... [2020-10-28 09:27:50,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:50" (1/1) ... [2020-10-28 09:27:50,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 09:27:50,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 09:27:50,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 09:27:50,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 09:27:50,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 09:27:50,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 09:27:50,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 09:27:50,264 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 09:27:50,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-28 09:27:50,265 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 09:27:50,266 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 09:27:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 09:27:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 09:27:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 09:27:50,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 09:27:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 09:27:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 09:27:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 09:27:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 09:27:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 09:27:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 09:27:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 09:27:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 09:27:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 09:27:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 09:27:50,899 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 09:27:50,900 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-28 09:27:50,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:27:50 BoogieIcfgContainer [2020-10-28 09:27:50,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 09:27:50,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 09:27:50,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 09:27:50,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 09:27:50,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:27:49" (1/3) ... [2020-10-28 09:27:50,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15362906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:27:50, skipping insertion in model container [2020-10-28 09:27:50,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:50" (2/3) ... [2020-10-28 09:27:50,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15362906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:27:50, skipping insertion in model container [2020-10-28 09:27:50,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:27:50" (3/3) ... [2020-10-28 09:27:50,912 INFO L111 eAbstractionObserver]: Analyzing ICFG partial_mod_count_limited_3.c [2020-10-28 09:27:50,924 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 09:27:50,930 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 09:27:50,944 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 09:27:50,972 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 09:27:50,972 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 09:27:50,972 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 09:27:50,972 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 09:27:50,972 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 09:27:50,972 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 09:27:50,973 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 09:27:50,973 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 09:27:50,990 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-10-28 09:27:50,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-28 09:27:50,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:27:50,996 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] [2020-10-28 09:27:50,996 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:27:51,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:27:51,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1396075351, now seen corresponding path program 1 times [2020-10-28 09:27:51,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:27:51,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1033287545] [2020-10-28 09:27:51,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:27:51,153 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-28 09:27:51,154 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-28 09:27:51,154 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 09:27:51,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 09:27:51,177 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-28 09:27:51,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:27:51 BoogieIcfgContainer [2020-10-28 09:27:51,177 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 09:27:51,181 INFO L168 Benchmark]: Toolchain (without parser) took 1489.96 ms. Allocated memory is still 151.0 MB. Free memory was 127.5 MB in the beginning and 121.5 MB in the end (delta: 6.0 MB). Peak memory consumption was 7.1 MB. Max. memory is 8.0 GB. [2020-10-28 09:27:51,182 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 125.8 MB. Free memory was 100.8 MB in the beginning and 100.7 MB in the end (delta: 131.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 09:27:51,183 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.80 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 116.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-28 09:27:51,184 INFO L168 Benchmark]: Boogie Preprocessor took 92.93 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-28 09:27:51,185 INFO L168 Benchmark]: RCFGBuilder took 756.05 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 133.0 MB in the end (delta: -18.2 MB). Peak memory consumption was 17.6 MB. Max. memory is 8.0 GB. [2020-10-28 09:27:51,186 INFO L168 Benchmark]: TraceAbstraction took 274.08 ms. Allocated memory is still 151.0 MB. Free memory was 132.5 MB in the beginning and 121.5 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-28 09:27:51,191 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 125.8 MB. Free memory was 100.8 MB in the beginning and 100.7 MB in the end (delta: 131.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 350.80 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 116.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 92.93 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 756.05 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 133.0 MB in the end (delta: -18.2 MB). Peak memory consumption was 17.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 274.08 ms. Allocated memory is still 151.0 MB. Free memory was 132.5 MB in the beginning and 121.5 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: 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: [L10] int N = 1000; [L12] int i,j=0,k=0,a[N]; [L13] int lim=__VERIFIER_nondet_int(); [L14] unsigned int R=3; [L15] CALL assume_abort_if_not(0 < lim && lim < N/R) [L7] COND TRUE !cond [L15] RET assume_abort_if_not(0 < lim && lim < N/R) [L16] i=0 [L16] COND FALSE !(i