/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-fpi/indp5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 03:54:06,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 03:54:06,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 03:54:06,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 03:54:06,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 03:54:06,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 03:54:06,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 03:54:06,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 03:54:06,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 03:54:06,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 03:54:06,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 03:54:06,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 03:54:06,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 03:54:06,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 03:54:06,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 03:54:06,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 03:54:06,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 03:54:06,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 03:54:06,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 03:54:06,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 03:54:06,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 03:54:06,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 03:54:06,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 03:54:06,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 03:54:06,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 03:54:06,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 03:54:06,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 03:54:06,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 03:54:06,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 03:54:06,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 03:54:06,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 03:54:06,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 03:54:06,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 03:54:06,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 03:54:06,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 03:54:06,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 03:54:06,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 03:54:06,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 03:54:06,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 03:54:06,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 03:54:06,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 03:54:06,912 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 [2020-10-29 03:54:06,962 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 03:54:06,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 03:54:06,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 03:54:06,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 03:54:06,967 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 03:54:06,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 03:54:06,967 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 03:54:06,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 03:54:06,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 03:54:06,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 03:54:06,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 03:54:06,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 03:54:06,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 03:54:06,970 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 03:54:06,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 03:54:06,970 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 03:54:06,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 03:54:06,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 03:54:06,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 03:54:06,971 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 03:54:06,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 03:54:06,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 03:54:06,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 03:54:06,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 03:54:06,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 03:54:06,972 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 03:54:06,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 03:54:06,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 03:54:06,973 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 03:54:06,973 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 03:54:07,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 03:54:07,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 03:54:07,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 03:54:07,431 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 03:54:07,432 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 03:54:07,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp5.c [2020-10-29 03:54:07,519 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8035ec853/ec5355df95c547babb0753b243274e30/FLAGeee379ee8 [2020-10-29 03:54:08,131 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 03:54:08,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/indp5.c [2020-10-29 03:54:08,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8035ec853/ec5355df95c547babb0753b243274e30/FLAGeee379ee8 [2020-10-29 03:54:08,502 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8035ec853/ec5355df95c547babb0753b243274e30 [2020-10-29 03:54:08,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 03:54:08,515 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 03:54:08,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 03:54:08,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 03:54:08,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 03:54:08,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:54:08" (1/1) ... [2020-10-29 03:54:08,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c246a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:08, skipping insertion in model container [2020-10-29 03:54:08,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:54:08" (1/1) ... [2020-10-29 03:54:08,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 03:54:08,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 03:54:08,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 03:54:08,838 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 03:54:08,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 03:54:08,881 INFO L208 MainTranslator]: Completed translation [2020-10-29 03:54:08,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:08 WrapperNode [2020-10-29 03:54:08,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 03:54:08,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 03:54:08,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 03:54:08,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 03:54:08,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:08" (1/1) ... [2020-10-29 03:54:08,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:08" (1/1) ... [2020-10-29 03:54:08,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:08" (1/1) ... [2020-10-29 03:54:08,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:08" (1/1) ... [2020-10-29 03:54:08,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:08" (1/1) ... [2020-10-29 03:54:08,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:08" (1/1) ... [2020-10-29 03:54:08,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:08" (1/1) ... [2020-10-29 03:54:08,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 03:54:08,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 03:54:08,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 03:54:08,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 03:54:08,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:08" (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 [2020-10-29 03:54:09,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 03:54:09,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 03:54:09,011 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 03:54:09,011 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 03:54:09,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 03:54:09,012 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 03:54:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 03:54:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 03:54:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 03:54:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 03:54:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 03:54:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 03:54:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 03:54:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 03:54:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 03:54:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 03:54:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 03:54:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 03:54:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 03:54:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 03:54:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 03:54:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 03:54:09,478 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 03:54:09,479 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-29 03:54:09,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:54:09 BoogieIcfgContainer [2020-10-29 03:54:09,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 03:54:09,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 03:54:09,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 03:54:09,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 03:54:09,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 03:54:08" (1/3) ... [2020-10-29 03:54:09,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513f453f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:54:09, skipping insertion in model container [2020-10-29 03:54:09,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:08" (2/3) ... [2020-10-29 03:54:09,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513f453f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:54:09, skipping insertion in model container [2020-10-29 03:54:09,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:54:09" (3/3) ... [2020-10-29 03:54:09,490 INFO L111 eAbstractionObserver]: Analyzing ICFG indp5.c [2020-10-29 03:54:09,505 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 03:54:09,510 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 03:54:09,525 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 03:54:09,554 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 03:54:09,554 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 03:54:09,554 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 03:54:09,554 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 03:54:09,554 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 03:54:09,555 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 03:54:09,555 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 03:54:09,555 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 03:54:09,576 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-10-29 03:54:09,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-29 03:54:09,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:54:09,583 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, 1, 1] [2020-10-29 03:54:09,583 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:54:09,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:54:09,590 INFO L82 PathProgramCache]: Analyzing trace with hash -462952442, now seen corresponding path program 1 times [2020-10-29 03:54:09,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:54:09,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512130483] [2020-10-29 03:54:09,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:54:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:54:09,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:09,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:10,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:10,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:10,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:10,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:12,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:54:12,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 03:54:12,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 03:54:12,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2327 [2020-10-29 03:54:12,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:54:12,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:54:12,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 03:54:12,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 03:54:12,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 03:54:12,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 03:54:12,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:54:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:54:12,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:12,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:54:12,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:54:12,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:54:12,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 03:54:12,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:54:12,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:54:12,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:54:12,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:54:12,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:54:12,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 03:54:12,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 03:54:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:54:12,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:12,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:12,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:54:12,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:54:12,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:54:12,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:54:12,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:54:12,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:54:12,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:54:12,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:54:12,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:54:12,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:54:12,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 03:54:12,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1512130483] [2020-10-29 03:54:12,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 03:54:12,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 03:54:12,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015692025] [2020-10-29 03:54:12,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 03:54:12,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:54:12,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 03:54:12,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 03:54:12,425 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 5 states. [2020-10-29 03:54:12,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:54:12,793 INFO L93 Difference]: Finished difference Result 84 states and 117 transitions. [2020-10-29 03:54:12,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 03:54:12,796 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-29 03:54:12,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:54:12,805 INFO L225 Difference]: With dead ends: 84 [2020-10-29 03:54:12,805 INFO L226 Difference]: Without dead ends: 39 [2020-10-29 03:54:12,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 03:54:12,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-29 03:54:12,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-29 03:54:12,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-29 03:54:12,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2020-10-29 03:54:12,856 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 28 [2020-10-29 03:54:12,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:54:12,856 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2020-10-29 03:54:12,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 03:54:12,857 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2020-10-29 03:54:12,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-29 03:54:12,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:54:12,859 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:54:12,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 03:54:12,859 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:54:12,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:54:12,860 INFO L82 PathProgramCache]: Analyzing trace with hash 849595736, now seen corresponding path program 1 times [2020-10-29 03:54:12,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:54:12,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1568262972] [2020-10-29 03:54:12,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:54:12,887 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-29 03:54:12,887 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-29 03:54:12,888 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 03:54:12,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 03:54:12,912 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-29 03:54:12,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 03:54:12 BoogieIcfgContainer [2020-10-29 03:54:12,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 03:54:12,915 INFO L168 Benchmark]: Toolchain (without parser) took 4404.85 ms. Allocated memory was 152.0 MB in the beginning and 185.6 MB in the end (delta: 33.6 MB). Free memory was 126.9 MB in the beginning and 136.5 MB in the end (delta: -9.5 MB). Peak memory consumption was 24.0 MB. Max. memory is 8.0 GB. [2020-10-29 03:54:12,916 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 152.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 03:54:12,917 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.08 ms. Allocated memory is still 152.0 MB. Free memory was 126.2 MB in the beginning and 116.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-29 03:54:12,918 INFO L168 Benchmark]: Boogie Preprocessor took 43.29 ms. Allocated memory is still 152.0 MB. Free memory was 116.1 MB in the beginning and 114.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-29 03:54:12,919 INFO L168 Benchmark]: RCFGBuilder took 554.20 ms. Allocated memory is still 152.0 MB. Free memory was 114.4 MB in the beginning and 131.8 MB in the end (delta: -17.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 8.0 GB. [2020-10-29 03:54:12,920 INFO L168 Benchmark]: TraceAbstraction took 3429.63 ms. Allocated memory was 152.0 MB in the beginning and 185.6 MB in the end (delta: 33.6 MB). Free memory was 131.5 MB in the beginning and 136.5 MB in the end (delta: -5.0 MB). Peak memory consumption was 28.6 MB. Max. memory is 8.0 GB. [2020-10-29 03:54:12,924 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 152.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 361.08 ms. Allocated memory is still 152.0 MB. Free memory was 126.2 MB in the beginning and 116.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 43.29 ms. Allocated memory is still 152.0 MB. Free memory was 116.1 MB in the beginning and 114.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 554.20 ms. Allocated memory is still 152.0 MB. Free memory was 114.4 MB in the beginning and 131.8 MB in the end (delta: -17.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3429.63 ms. Allocated memory was 152.0 MB in the beginning and 185.6 MB in the end (delta: 33.6 MB). Free memory was 131.5 MB in the beginning and 136.5 MB in the end (delta: -5.0 MB). Peak memory consumption was 28.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: 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: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] long long i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long sum[1]; [L31] sum[0] = 0 [L32] i=0 [L32] COND TRUE i