/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=NARROWEST --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/ms3f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 05:07:04,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 05:07:04,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 05:07:04,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 05:07:04,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 05:07:04,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 05:07:04,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 05:07:04,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 05:07:04,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 05:07:04,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 05:07:04,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 05:07:04,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 05:07:04,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 05:07:04,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 05:07:04,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 05:07:04,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 05:07:04,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 05:07:04,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 05:07:04,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 05:07:04,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 05:07:04,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 05:07:04,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 05:07:04,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 05:07:04,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 05:07:04,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 05:07:04,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 05:07:04,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 05:07:04,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 05:07:04,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 05:07:04,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 05:07:04,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 05:07:04,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 05:07:04,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 05:07:04,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 05:07:04,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 05:07:04,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 05:07:04,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 05:07:04,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 05:07:04,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 05:07:04,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 05:07:04,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 05:07:04,889 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 [2020-10-13 05:07:04,939 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 05:07:04,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 05:07:04,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 05:07:04,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 05:07:04,942 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 05:07:04,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 05:07:04,944 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 05:07:04,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 05:07:04,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 05:07:04,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 05:07:04,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 05:07:04,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 05:07:04,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 05:07:04,945 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 05:07:04,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 05:07:04,946 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 05:07:04,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 05:07:04,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 05:07:04,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 05:07:04,948 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 05:07:04,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 05:07:04,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 05:07:04,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 05:07:04,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 05:07:04,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 05:07:04,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 05:07:04,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 05:07:04,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 05:07:04,950 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 05:07:04,950 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 05:07:05,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 05:07:05,300 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 05:07:05,304 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 05:07:05,305 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 05:07:05,306 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 05:07:05,307 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ms3f.c [2020-10-13 05:07:05,372 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44fc611a8/597b024ca59941aa985d8540d1039aea/FLAG8a140bc48 [2020-10-13 05:07:05,878 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 05:07:05,879 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/ms3f.c [2020-10-13 05:07:05,889 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44fc611a8/597b024ca59941aa985d8540d1039aea/FLAG8a140bc48 [2020-10-13 05:07:06,169 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44fc611a8/597b024ca59941aa985d8540d1039aea [2020-10-13 05:07:06,178 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 05:07:06,180 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 05:07:06,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 05:07:06,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 05:07:06,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 05:07:06,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:07:06" (1/1) ... [2020-10-13 05:07:06,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f65d0bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:06, skipping insertion in model container [2020-10-13 05:07:06,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:07:06" (1/1) ... [2020-10-13 05:07:06,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 05:07:06,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 05:07:06,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:07:06,419 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 05:07:06,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:07:06,456 INFO L208 MainTranslator]: Completed translation [2020-10-13 05:07:06,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:06 WrapperNode [2020-10-13 05:07:06,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 05:07:06,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 05:07:06,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 05:07:06,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 05:07:06,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:06" (1/1) ... [2020-10-13 05:07:06,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:06" (1/1) ... [2020-10-13 05:07:06,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:06" (1/1) ... [2020-10-13 05:07:06,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:06" (1/1) ... [2020-10-13 05:07:06,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:06" (1/1) ... [2020-10-13 05:07:06,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:06" (1/1) ... [2020-10-13 05:07:06,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:06" (1/1) ... [2020-10-13 05:07:06,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 05:07:06,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 05:07:06,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 05:07:06,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 05:07:06,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:06" (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 [2020-10-13 05:07:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 05:07:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 05:07:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 05:07:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-13 05:07:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 05:07:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 05:07:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 05:07:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 05:07:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 05:07:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 05:07:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 05:07:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 05:07:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 05:07:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 05:07:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 05:07:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 05:07:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 05:07:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 05:07:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 05:07:06,930 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 05:07:06,930 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-13 05:07:06,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:07:06 BoogieIcfgContainer [2020-10-13 05:07:06,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 05:07:06,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 05:07:06,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 05:07:06,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 05:07:06,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:07:06" (1/3) ... [2020-10-13 05:07:06,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d057555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:07:06, skipping insertion in model container [2020-10-13 05:07:06,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:06" (2/3) ... [2020-10-13 05:07:06,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d057555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:07:06, skipping insertion in model container [2020-10-13 05:07:06,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:07:06" (3/3) ... [2020-10-13 05:07:06,945 INFO L109 eAbstractionObserver]: Analyzing ICFG ms3f.c [2020-10-13 05:07:06,957 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 05:07:06,965 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 05:07:06,980 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 05:07:07,013 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 05:07:07,014 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 05:07:07,014 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 05:07:07,014 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 05:07:07,014 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 05:07:07,014 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 05:07:07,015 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 05:07:07,015 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 05:07:07,052 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-10-13 05:07:07,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-13 05:07:07,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:07:07,059 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] [2020-10-13 05:07:07,059 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:07:07,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:07:07,065 INFO L82 PathProgramCache]: Analyzing trace with hash -432131487, now seen corresponding path program 1 times [2020-10-13 05:07:07,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:07:07,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207902880] [2020-10-13 05:07:07,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:07:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:07:07,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:07,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:07,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:07,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:07:07,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 05:07:07,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:07:07,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 574 [2020-10-13 05:07:07,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:07:07,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:07:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 05:07:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:07:07,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 05:07:07,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:07:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:07:07,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:07,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:07:07,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:07:07,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:07:07,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 05:07:07,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:07:07,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:07:07,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:07:07,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:07:07,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:07:07,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 05:07:07,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:07:07,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:07,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:07:07,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:07:07,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:07:07,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:07:07,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:07:07,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:07:07,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 05:07:07,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:07:07,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:07:07,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:07:07,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207902880] [2020-10-13 05:07:07,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:07:07,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 05:07:07,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405013459] [2020-10-13 05:07:07,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 05:07:07,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:07:07,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 05:07:07,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:07:07,906 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states. [2020-10-13 05:07:08,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:07:08,015 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2020-10-13 05:07:08,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 05:07:08,018 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-10-13 05:07:08,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:07:08,027 INFO L225 Difference]: With dead ends: 54 [2020-10-13 05:07:08,028 INFO L226 Difference]: Without dead ends: 25 [2020-10-13 05:07:08,032 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:07:08,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-13 05:07:08,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-10-13 05:07:08,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-13 05:07:08,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-10-13 05:07:08,080 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 21 [2020-10-13 05:07:08,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:07:08,081 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-10-13 05:07:08,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 05:07:08,081 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-10-13 05:07:08,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-13 05:07:08,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:07:08,083 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] [2020-10-13 05:07:08,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 05:07:08,084 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:07:08,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:07:08,084 INFO L82 PathProgramCache]: Analyzing trace with hash -173966049, now seen corresponding path program 1 times [2020-10-13 05:07:08,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:07:08,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [633900578] [2020-10-13 05:07:08,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:07:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:07:08,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:08,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:08,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:07:08,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 05:07:08,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 05:07:08,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-13 05:07:08,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:07:08,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 05:07:08,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 05:07:08,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 05:07:08,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:07:08,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:07:08,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:07:08,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:08,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:07:08,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:07:08,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:07:08,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:07:08,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:07:08,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:07:08,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:07:08,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:07:08,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:07:08,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 05:07:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:07:08,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:08,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:07:08,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:07:08,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:07:08,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 05:07:08,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:07:08,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:07:08,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:07:08,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:07:08,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:07:08,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:07:08,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [633900578] [2020-10-13 05:07:08,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:07:08,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 05:07:08,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578673622] [2020-10-13 05:07:08,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 05:07:08,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:07:08,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 05:07:08,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 05:07:08,414 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 5 states. [2020-10-13 05:07:08,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:07:08,536 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2020-10-13 05:07:08,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 05:07:08,537 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-13 05:07:08,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:07:08,538 INFO L225 Difference]: With dead ends: 37 [2020-10-13 05:07:08,538 INFO L226 Difference]: Without dead ends: 27 [2020-10-13 05:07:08,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 05:07:08,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-13 05:07:08,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-13 05:07:08,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-13 05:07:08,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2020-10-13 05:07:08,548 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 21 [2020-10-13 05:07:08,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:07:08,549 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2020-10-13 05:07:08,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 05:07:08,549 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2020-10-13 05:07:08,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-13 05:07:08,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:07:08,550 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] [2020-10-13 05:07:08,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 05:07:08,551 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:07:08,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:07:08,551 INFO L82 PathProgramCache]: Analyzing trace with hash -445719797, now seen corresponding path program 1 times [2020-10-13 05:07:08,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:07:08,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433699495] [2020-10-13 05:07:08,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:07:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 05:07:08,571 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 05:07:08,571 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 05:07:08,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 05:07:08,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 05:07:08 BoogieIcfgContainer [2020-10-13 05:07:08,596 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 05:07:08,599 INFO L168 Benchmark]: Toolchain (without parser) took 2418.26 ms. Allocated memory was 139.5 MB in the beginning and 234.9 MB in the end (delta: 95.4 MB). Free memory was 103.4 MB in the beginning and 175.9 MB in the end (delta: -72.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-10-13 05:07:08,601 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-13 05:07:08,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.19 ms. Allocated memory is still 139.5 MB. Free memory was 103.0 MB in the beginning and 92.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-10-13 05:07:08,603 INFO L168 Benchmark]: Boogie Preprocessor took 127.97 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 92.8 MB in the beginning and 179.1 MB in the end (delta: -86.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-10-13 05:07:08,604 INFO L168 Benchmark]: RCFGBuilder took 350.30 ms. Allocated memory is still 201.9 MB. Free memory was 179.1 MB in the beginning and 162.2 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. [2020-10-13 05:07:08,605 INFO L168 Benchmark]: TraceAbstraction took 1658.68 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 162.2 MB in the beginning and 175.9 MB in the end (delta: -13.7 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. [2020-10-13 05:07:08,609 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 276.19 ms. Allocated memory is still 139.5 MB. Free memory was 103.0 MB in the beginning and 92.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.97 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 92.8 MB in the beginning and 179.1 MB in the end (delta: -86.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 350.30 ms. Allocated memory is still 201.9 MB. Free memory was 179.1 MB in the beginning and 162.2 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1658.68 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 162.2 MB in the beginning and 175.9 MB in the end (delta: -13.7 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a 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] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] i=0 [L29] COND TRUE i 2*N) [L13] COND TRUE !(cond) [L13] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 50 SDtfs, 37 SDslu, 15 SDs, 0 SdLazy, 64 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 1440 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...