/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=BIGGEST --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-fpi/s1if.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 10:12:33,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 10:12:33,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 10:12:33,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 10:12:33,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 10:12:33,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 10:12:33,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 10:12:33,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 10:12:33,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 10:12:33,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 10:12:33,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 10:12:33,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 10:12:33,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 10:12:33,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 10:12:33,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 10:12:33,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 10:12:33,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 10:12:33,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 10:12:33,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 10:12:33,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 10:12:33,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 10:12:33,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 10:12:33,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 10:12:33,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 10:12:33,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 10:12:33,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 10:12:33,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 10:12:33,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 10:12:33,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 10:12:33,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 10:12:33,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 10:12:33,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 10:12:33,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 10:12:33,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 10:12:33,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 10:12:33,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 10:12:33,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 10:12:33,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 10:12:33,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 10:12:33,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 10:12:33,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 10:12:33,897 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 [2020-10-12 10:12:33,919 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 10:12:33,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 10:12:33,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 10:12:33,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 10:12:33,921 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 10:12:33,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 10:12:33,921 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 10:12:33,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 10:12:33,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 10:12:33,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 10:12:33,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 10:12:33,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 10:12:33,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 10:12:33,922 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 10:12:33,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 10:12:33,923 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 10:12:33,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 10:12:33,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 10:12:33,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 10:12:33,923 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 10:12:33,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 10:12:33,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 10:12:33,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 10:12:33,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 10:12:33,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 10:12:33,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 10:12:33,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 10:12:33,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 10:12:33,925 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 10:12:33,925 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 10:12:34,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 10:12:34,245 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 10:12:34,249 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 10:12:34,250 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 10:12:34,251 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 10:12:34,251 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s1if.c [2020-10-12 10:12:34,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1e9f854d/c44ac331df4544be82bb637cf152766b/FLAG37939d252 [2020-10-12 10:12:34,804 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 10:12:34,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s1if.c [2020-10-12 10:12:34,812 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1e9f854d/c44ac331df4544be82bb637cf152766b/FLAG37939d252 [2020-10-12 10:12:35,162 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1e9f854d/c44ac331df4544be82bb637cf152766b [2020-10-12 10:12:35,174 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 10:12:35,175 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 10:12:35,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 10:12:35,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 10:12:35,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 10:12:35,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:12:35" (1/1) ... [2020-10-12 10:12:35,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@244669af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:12:35, skipping insertion in model container [2020-10-12 10:12:35,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:12:35" (1/1) ... [2020-10-12 10:12:35,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 10:12:35,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 10:12:35,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:12:35,393 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 10:12:35,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:12:35,432 INFO L208 MainTranslator]: Completed translation [2020-10-12 10:12:35,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:12:35 WrapperNode [2020-10-12 10:12:35,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 10:12:35,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 10:12:35,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 10:12:35,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 10:12:35,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:12:35" (1/1) ... [2020-10-12 10:12:35,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:12:35" (1/1) ... [2020-10-12 10:12:35,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:12:35" (1/1) ... [2020-10-12 10:12:35,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:12:35" (1/1) ... [2020-10-12 10:12:35,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:12:35" (1/1) ... [2020-10-12 10:12:35,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:12:35" (1/1) ... [2020-10-12 10:12:35,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:12:35" (1/1) ... [2020-10-12 10:12:35,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 10:12:35,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 10:12:35,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 10:12:35,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 10:12:35,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:12:35" (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 [2020-10-12 10:12:35,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 10:12:35,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 10:12:35,627 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 10:12:35,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-12 10:12:35,627 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 10:12:35,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 10:12:35,628 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 10:12:35,628 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 10:12:35,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 10:12:35,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 10:12:35,628 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 10:12:35,629 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 10:12:35,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 10:12:35,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 10:12:35,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 10:12:35,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 10:12:35,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 10:12:35,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 10:12:35,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 10:12:35,913 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 10:12:35,914 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-12 10:12:35,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:12:35 BoogieIcfgContainer [2020-10-12 10:12:35,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 10:12:35,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 10:12:35,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 10:12:35,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 10:12:35,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:12:35" (1/3) ... [2020-10-12 10:12:35,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14904cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:12:35, skipping insertion in model container [2020-10-12 10:12:35,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:12:35" (2/3) ... [2020-10-12 10:12:35,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14904cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:12:35, skipping insertion in model container [2020-10-12 10:12:35,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:12:35" (3/3) ... [2020-10-12 10:12:35,927 INFO L109 eAbstractionObserver]: Analyzing ICFG s1if.c [2020-10-12 10:12:35,942 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 10:12:35,949 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 10:12:35,965 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 10:12:35,991 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 10:12:35,991 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 10:12:35,991 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 10:12:35,992 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 10:12:35,992 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 10:12:35,992 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 10:12:35,992 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 10:12:35,992 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 10:12:36,023 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-10-12 10:12:36,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-12 10:12:36,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:12:36,032 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] [2020-10-12 10:12:36,033 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:12:36,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:12:36,040 INFO L82 PathProgramCache]: Analyzing trace with hash -432131487, now seen corresponding path program 1 times [2020-10-12 10:12:36,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:12:36,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518073127] [2020-10-12 10:12:36,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:12:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:12:36,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:12:36,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:12:36,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:12:36,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:12:36,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-12 10:12:36,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:12:36,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 493 [2020-10-12 10:12:36,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:12:36,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 10:12:36,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 10:12:36,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 10:12:36,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 10:12:36,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:12:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:12:36,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:12:36,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:12:36,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:12:36,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:12:36,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:12:36,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:12:36,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:12:36,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:12:36,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:12:36,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:12:36,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-12 10:12:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:12:36,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:12:36,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:12:36,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:12:36,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:12:36,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:12:36,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 10:12:36,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:12:36,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:12:36,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:12:36,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 10:12:36,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:12:36,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 10:12:36,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518073127] [2020-10-12 10:12:36,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:12:36,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 10:12:36,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43695056] [2020-10-12 10:12:36,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 10:12:36,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:12:36,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 10:12:36,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 10:12:36,826 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 5 states. [2020-10-12 10:12:37,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:12:37,002 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2020-10-12 10:12:37,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 10:12:37,007 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-12 10:12:37,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:12:37,027 INFO L225 Difference]: With dead ends: 63 [2020-10-12 10:12:37,027 INFO L226 Difference]: Without dead ends: 30 [2020-10-12 10:12:37,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 10:12:37,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-12 10:12:37,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2020-10-12 10:12:37,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-12 10:12:37,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2020-10-12 10:12:37,077 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 21 [2020-10-12 10:12:37,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:12:37,078 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2020-10-12 10:12:37,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 10:12:37,078 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2020-10-12 10:12:37,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-12 10:12:37,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:12:37,080 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:12:37,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 10:12:37,080 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:12:37,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:12:37,081 INFO L82 PathProgramCache]: Analyzing trace with hash -445719797, now seen corresponding path program 1 times [2020-10-12 10:12:37,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:12:37,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310588065] [2020-10-12 10:12:37,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:12:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:12:37,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:12:37,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:12:37,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:12:38,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:12:38,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-12 10:12:38,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:12:38,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1060 [2020-10-12 10:12:38,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:12:38,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 10:12:38,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-12 10:12:38,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 10:12:38,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:12:38,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:12:38,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:12:38,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:12:38,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:12:38,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:12:38,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:12:38,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 10:12:38,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:12:38,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:12:38,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:12:38,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:12:38,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:12:38,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-12 10:12:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:12:38,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:12:38,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:12:38,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 10:12:38,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:12:38,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 10:12:38,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:12:38,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:12:38,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:12:38,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:12:38,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:12:38,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 10:12:38,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310588065] [2020-10-12 10:12:38,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 10:12:38,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 10:12:38,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301343033] [2020-10-12 10:12:38,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 10:12:38,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:12:38,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 10:12:38,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-10-12 10:12:38,681 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 12 states. [2020-10-12 10:12:39,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:12:39,108 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2020-10-12 10:12:39,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 10:12:39,108 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2020-10-12 10:12:39,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:12:39,113 INFO L225 Difference]: With dead ends: 47 [2020-10-12 10:12:39,113 INFO L226 Difference]: Without dead ends: 41 [2020-10-12 10:12:39,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2020-10-12 10:12:39,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-12 10:12:39,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 33. [2020-10-12 10:12:39,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-12 10:12:39,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-10-12 10:12:39,125 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 26 [2020-10-12 10:12:39,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:12:39,125 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-10-12 10:12:39,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 10:12:39,125 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-10-12 10:12:39,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-12 10:12:39,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:12:39,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:12:39,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 10:12:39,127 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:12:39,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:12:39,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1255066423, now seen corresponding path program 1 times [2020-10-12 10:12:39,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:12:39,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833373043] [2020-10-12 10:12:39,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:12:39,139 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-12 10:12:39,140 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-12 10:12:39,140 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 10:12:39,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 10:12:39,162 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-12 10:12:39,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:12:39 BoogieIcfgContainer [2020-10-12 10:12:39,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 10:12:39,166 INFO L168 Benchmark]: Toolchain (without parser) took 3989.31 ms. Allocated memory was 146.3 MB in the beginning and 244.8 MB in the end (delta: 98.6 MB). Free memory was 102.5 MB in the beginning and 93.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 107.6 MB. Max. memory is 7.1 GB. [2020-10-12 10:12:39,174 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-12 10:12:39,178 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.65 ms. Allocated memory is still 146.3 MB. Free memory was 102.3 MB in the beginning and 91.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-10-12 10:12:39,180 INFO L168 Benchmark]: Boogie Preprocessor took 125.37 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 91.7 MB in the beginning and 180.3 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-10-12 10:12:39,182 INFO L168 Benchmark]: RCFGBuilder took 359.82 ms. Allocated memory is still 202.4 MB. Free memory was 180.3 MB in the beginning and 163.0 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. [2020-10-12 10:12:39,187 INFO L168 Benchmark]: TraceAbstraction took 3242.59 ms. Allocated memory was 202.4 MB in the beginning and 244.8 MB in the end (delta: 42.5 MB). Free memory was 162.3 MB in the beginning and 93.4 MB in the end (delta: 68.9 MB). Peak memory consumption was 111.4 MB. Max. memory is 7.1 GB. [2020-10-12 10:12:39,198 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 256.65 ms. Allocated memory is still 146.3 MB. Free memory was 102.3 MB in the beginning and 91.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.37 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 91.7 MB in the beginning and 180.3 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 359.82 ms. Allocated memory is still 202.4 MB. Free memory was 180.3 MB in the beginning and 163.0 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3242.59 ms. Allocated memory was 202.4 MB in the beginning and 244.8 MB in the end (delta: 42.5 MB). Free memory was 162.3 MB in the beginning and 93.4 MB in the end (delta: 68.9 MB). Peak memory consumption was 111.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: 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: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] int sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] sum[0] = 0 [L30] i=0 [L30] COND TRUE i