/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/terminator_02-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:43:27,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:43:27,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:43:27,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:43:27,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:43:27,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:43:27,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:43:27,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:43:27,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:43:27,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:43:27,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:43:27,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:43:27,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:43:27,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:43:27,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:43:27,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:43:27,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:43:27,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:43:27,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:43:27,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:43:27,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:43:27,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:43:27,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:43:27,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:43:27,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:43:27,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:43:27,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:43:27,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:43:27,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:43:27,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:43:27,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:43:27,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:43:27,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:43:27,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:43:27,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:43:27,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:43:27,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:43:27,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:43:27,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:43:27,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:43:27,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:43:27,879 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:43:27,916 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:43:27,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:43:27,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:43:27,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:43:27,919 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:43:27,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:43:27,919 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:43:27,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:43:27,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:43:27,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:43:27,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:43:27,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:43:27,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:43:27,920 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:43:27,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:43:27,921 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:43:27,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:43:27,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:43:27,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:43:27,922 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:43:27,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:43:27,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:43:27,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:43:27,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:43:27,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:43:27,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:43:27,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:43:27,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:43:27,924 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:43:27,924 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:43:28,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:43:28,379 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:43:28,384 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:43:28,386 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:43:28,386 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:43:28,388 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02-1.c [2020-09-25 05:43:28,483 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f98146b2c/c82b775c754f481e8c5d63ca073c5dbf/FLAG7fc414ab8 [2020-09-25 05:43:29,047 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:43:29,048 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/terminator_02-1.c [2020-09-25 05:43:29,057 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f98146b2c/c82b775c754f481e8c5d63ca073c5dbf/FLAG7fc414ab8 [2020-09-25 05:43:29,404 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f98146b2c/c82b775c754f481e8c5d63ca073c5dbf [2020-09-25 05:43:29,419 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:43:29,426 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:43:29,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:43:29,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:43:29,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:43:29,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:43:29" (1/1) ... [2020-09-25 05:43:29,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b8f57a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:43:29, skipping insertion in model container [2020-09-25 05:43:29,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:43:29" (1/1) ... [2020-09-25 05:43:29,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:43:29,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:43:29,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:43:29,690 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:43:29,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:43:29,722 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:43:29,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:43:29 WrapperNode [2020-09-25 05:43:29,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:43:29,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:43:29,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:43:29,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:43:29,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:43:29" (1/1) ... [2020-09-25 05:43:29,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:43:29" (1/1) ... [2020-09-25 05:43:29,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:43:29" (1/1) ... [2020-09-25 05:43:29,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:43:29" (1/1) ... [2020-09-25 05:43:29,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:43:29" (1/1) ... [2020-09-25 05:43:29,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:43:29" (1/1) ... [2020-09-25 05:43:29,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:43:29" (1/1) ... [2020-09-25 05:43:29,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:43:29,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:43:29,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:43:29,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:43:29,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:43:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:43:29,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:43:29,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:43:29,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 05:43:29,926 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:43:29,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:43:29,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 05:43:29,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:43:29,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 05:43:29,926 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:43:29,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:43:29,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:43:30,168 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:43:30,169 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 05:43:30,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:43:30 BoogieIcfgContainer [2020-09-25 05:43:30,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:43:30,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:43:30,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:43:30,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:43:30,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:43:29" (1/3) ... [2020-09-25 05:43:30,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de29baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:43:30, skipping insertion in model container [2020-09-25 05:43:30,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:43:29" (2/3) ... [2020-09-25 05:43:30,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de29baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:43:30, skipping insertion in model container [2020-09-25 05:43:30,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:43:30" (3/3) ... [2020-09-25 05:43:30,187 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_02-1.c [2020-09-25 05:43:30,205 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:43:30,217 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:43:30,241 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:43:30,275 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:43:30,275 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:43:30,276 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:43:30,276 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:43:30,276 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:43:30,276 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:43:30,276 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:43:30,276 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:43:30,303 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-09-25 05:43:30,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-25 05:43:30,310 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:43:30,311 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:43:30,312 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:43:30,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:43:30,319 INFO L82 PathProgramCache]: Analyzing trace with hash 372962344, now seen corresponding path program 1 times [2020-09-25 05:43:30,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:43:30,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [279288813] [2020-09-25 05:43:30,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:43:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 05:43:30,455 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 05:43:30,456 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 05:43:30,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:43:30,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:43:30 BoogieIcfgContainer [2020-09-25 05:43:30,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:43:30,482 INFO L168 Benchmark]: Toolchain (without parser) took 1059.51 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 104.0 MB in the beginning and 157.6 MB in the end (delta: -53.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-09-25 05:43:30,483 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-25 05:43:30,485 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.57 ms. Allocated memory is still 140.5 MB. Free memory was 103.1 MB in the beginning and 93.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-09-25 05:43:30,486 INFO L168 Benchmark]: Boogie Preprocessor took 119.21 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 93.8 MB in the beginning and 182.7 MB in the end (delta: -88.9 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-09-25 05:43:30,487 INFO L168 Benchmark]: RCFGBuilder took 332.62 ms. Allocated memory is still 203.9 MB. Free memory was 182.7 MB in the beginning and 169.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-09-25 05:43:30,488 INFO L168 Benchmark]: TraceAbstraction took 300.69 ms. Allocated memory is still 203.9 MB. Free memory was 169.3 MB in the beginning and 157.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-09-25 05:43:30,495 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 296.57 ms. Allocated memory is still 140.5 MB. Free memory was 103.1 MB in the beginning and 93.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.21 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 93.8 MB in the beginning and 182.7 MB in the end (delta: -88.9 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 332.62 ms. Allocated memory is still 203.9 MB. Free memory was 182.7 MB in the beginning and 169.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 300.69 ms. Allocated memory is still 203.9 MB. Free memory was 169.3 MB in the beginning and 157.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int x=__VERIFIER_nondet_int(); [L15] int y=__VERIFIER_nondet_int(); [L16] int z=__VERIFIER_nondet_int(); [L18] COND FALSE !(x<100 && 100