/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-programs/partial_mod_count_limited_4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 05:20:22,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 05:20:22,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 05:20:22,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 05:20:22,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 05:20:22,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 05:20:22,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 05:20:22,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 05:20:22,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 05:20:22,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 05:20:22,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 05:20:22,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 05:20:22,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 05:20:22,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 05:20:22,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 05:20:22,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 05:20:22,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 05:20:22,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 05:20:22,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 05:20:22,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 05:20:22,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 05:20:22,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 05:20:22,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 05:20:22,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 05:20:22,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 05:20:22,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 05:20:22,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 05:20:22,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 05:20:22,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 05:20:22,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 05:20:22,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 05:20:22,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 05:20:22,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 05:20:22,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 05:20:22,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 05:20:22,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 05:20:22,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 05:20:22,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 05:20:22,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 05:20:22,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 05:20:22,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 05:20:22,618 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 05:20:22,667 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 05:20:22,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 05:20:22,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 05:20:22,669 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 05:20:22,672 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 05:20:22,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 05:20:22,673 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 05:20:22,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 05:20:22,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 05:20:22,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 05:20:22,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 05:20:22,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 05:20:22,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 05:20:22,674 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 05:20:22,677 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 05:20:22,677 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 05:20:22,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 05:20:22,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 05:20:22,678 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 05:20:22,678 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 05:20:22,678 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 05:20:22,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 05:20:22,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 05:20:22,679 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 05:20:22,679 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 05:20:22,679 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 05:20:22,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 05:20:22,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 05:20:22,680 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 05:20:22,680 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 05:20:23,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 05:20:23,020 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 05:20:23,028 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 05:20:23,030 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 05:20:23,031 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 05:20:23,032 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-programs/partial_mod_count_limited_4.c [2020-10-13 05:20:23,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/640bc90fc/762df906825240358c91ed8da914d27f/FLAG89a37bae1 [2020-10-13 05:20:23,544 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 05:20:23,545 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-programs/partial_mod_count_limited_4.c [2020-10-13 05:20:23,552 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/640bc90fc/762df906825240358c91ed8da914d27f/FLAG89a37bae1 [2020-10-13 05:20:23,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/640bc90fc/762df906825240358c91ed8da914d27f [2020-10-13 05:20:23,966 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 05:20:23,968 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 05:20:23,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 05:20:23,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 05:20:23,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 05:20:23,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:20:23" (1/1) ... [2020-10-13 05:20:23,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59c286c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:20:23, skipping insertion in model container [2020-10-13 05:20:23,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:20:23" (1/1) ... [2020-10-13 05:20:23,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 05:20:24,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 05:20:24,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:20:24,184 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 05:20:24,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:20:24,232 INFO L208 MainTranslator]: Completed translation [2020-10-13 05:20:24,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:20:24 WrapperNode [2020-10-13 05:20:24,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 05:20:24,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 05:20:24,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 05:20:24,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 05:20:24,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:20:24" (1/1) ... [2020-10-13 05:20:24,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:20:24" (1/1) ... [2020-10-13 05:20:24,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:20:24" (1/1) ... [2020-10-13 05:20:24,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:20:24" (1/1) ... [2020-10-13 05:20:24,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:20:24" (1/1) ... [2020-10-13 05:20:24,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:20:24" (1/1) ... [2020-10-13 05:20:24,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:20:24" (1/1) ... [2020-10-13 05:20:24,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 05:20:24,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 05:20:24,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 05:20:24,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 05:20:24,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:20:24" (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 05:20:24,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 05:20:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 05:20:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-13 05:20:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 05:20:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 05:20:24,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 05:20:24,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 05:20:24,416 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 05:20:24,416 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 05:20:24,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 05:20:24,416 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 05:20:24,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 05:20:24,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 05:20:24,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 05:20:24,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 05:20:24,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 05:20:24,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 05:20:24,801 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 05:20:24,801 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-13 05:20:24,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:20:24 BoogieIcfgContainer [2020-10-13 05:20:24,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 05:20:24,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 05:20:24,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 05:20:24,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 05:20:24,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:20:23" (1/3) ... [2020-10-13 05:20:24,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a9f5fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:20:24, skipping insertion in model container [2020-10-13 05:20:24,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:20:24" (2/3) ... [2020-10-13 05:20:24,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a9f5fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:20:24, skipping insertion in model container [2020-10-13 05:20:24,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:20:24" (3/3) ... [2020-10-13 05:20:24,816 INFO L109 eAbstractionObserver]: Analyzing ICFG partial_mod_count_limited_4.c [2020-10-13 05:20:24,827 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 05:20:24,835 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 05:20:24,849 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 05:20:24,869 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 05:20:24,870 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 05:20:24,870 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 05:20:24,870 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 05:20:24,870 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 05:20:24,870 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 05:20:24,870 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 05:20:24,870 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 05:20:24,888 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-13 05:20:24,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-13 05:20:24,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:20:24,896 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] [2020-10-13 05:20:24,896 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:20:24,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:20:24,902 INFO L82 PathProgramCache]: Analyzing trace with hash -113598078, now seen corresponding path program 1 times [2020-10-13 05:20:24,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:20:24,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571831979] [2020-10-13 05:20:24,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:20:25,012 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-13 05:20:25,013 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-13 05:20:25,013 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 05:20:25,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 05:20:25,033 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-13 05:20:25,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 05:20:25 BoogieIcfgContainer [2020-10-13 05:20:25,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 05:20:25,037 INFO L168 Benchmark]: Toolchain (without parser) took 1068.07 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 104.3 MB in the beginning and 151.2 MB in the end (delta: -46.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2020-10-13 05:20:25,038 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 05:20:25,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.99 ms. Allocated memory is still 141.0 MB. Free memory was 104.1 MB in the beginning and 93.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-10-13 05:20:25,040 INFO L168 Benchmark]: Boogie Preprocessor took 120.35 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 93.7 MB in the beginning and 181.3 MB in the end (delta: -87.6 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-10-13 05:20:25,041 INFO L168 Benchmark]: RCFGBuilder took 451.23 ms. Allocated memory is still 203.9 MB. Free memory was 181.3 MB in the beginning and 163.7 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. [2020-10-13 05:20:25,042 INFO L168 Benchmark]: TraceAbstraction took 226.69 ms. Allocated memory is still 203.9 MB. Free memory was 163.1 MB in the beginning and 151.9 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2020-10-13 05:20:25,047 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 264.99 ms. Allocated memory is still 141.0 MB. Free memory was 104.1 MB in the beginning and 93.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.35 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 93.7 MB in the beginning and 181.3 MB in the end (delta: -87.6 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 451.23 ms. Allocated memory is still 203.9 MB. Free memory was 181.3 MB in the beginning and 163.7 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226.69 ms. Allocated memory is still 203.9 MB. Free memory was 163.1 MB in the beginning and 151.9 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 2]: 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: [L8] int N = 1000; [L10] int i,j=0,k=0,a[N]; [L11] int lim=__VERIFIER_nondet_int(); [L12] unsigned int R=4; [L13] CALL assume_abort_if_not(0 < lim && lim < N/R) [L5] COND TRUE !cond [L13] RET assume_abort_if_not(0 < lim && lim < N/R) [L14] i=0 [L14] COND FALSE !(i