/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/sina4f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:20:10,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:20:10,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:20:10,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:20:10,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:20:10,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:20:10,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:20:10,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:20:10,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:20:10,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:20:10,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:20:10,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:20:10,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:20:10,537 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:20:10,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:20:10,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:20:10,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:20:10,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:20:10,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:20:10,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:20:10,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:20:10,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:20:10,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:20:10,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:20:10,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:20:10,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:20:10,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:20:10,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:20:10,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:20:10,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:20:10,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:20:10,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:20:10,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:20:10,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:20:10,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:20:10,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:20:10,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:20:10,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:20:10,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:20:10,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:20:10,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:20:10,592 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 17:20:10,635 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:20:10,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:20:10,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:20:10,638 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:20:10,638 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:20:10,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:20:10,639 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:20:10,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:20:10,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:20:10,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:20:10,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:20:10,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:20:10,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:20:10,641 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:20:10,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:20:10,642 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:20:10,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:20:10,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:20:10,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:20:10,643 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:20:10,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:20:10,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:20:10,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:20:10,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:20:10,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:20:10,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:20:10,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:20:10,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:20:10,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:20:10,645 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; [2020-09-24 17:20:11,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:20:11,144 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:20:11,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:20:11,150 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:20:11,151 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:20:11,152 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina4f.c [2020-09-24 17:20:11,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/809ddaa4f/ff2a205a84834b70b6ac5db535bc1366/FLAGb467dcc1a [2020-09-24 17:20:11,797 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:20:11,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/sina4f.c [2020-09-24 17:20:11,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/809ddaa4f/ff2a205a84834b70b6ac5db535bc1366/FLAGb467dcc1a [2020-09-24 17:20:12,074 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/809ddaa4f/ff2a205a84834b70b6ac5db535bc1366 [2020-09-24 17:20:12,087 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:20:12,091 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:20:12,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:20:12,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:20:12,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:20:12,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:20:12" (1/1) ... [2020-09-24 17:20:12,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e807449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:12, skipping insertion in model container [2020-09-24 17:20:12,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:20:12" (1/1) ... [2020-09-24 17:20:12,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:20:12,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:20:12,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:20:12,389 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:20:12,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:20:12,438 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:20:12,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:12 WrapperNode [2020-09-24 17:20:12,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:20:12,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:20:12,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:20:12,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:20:12,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:12" (1/1) ... [2020-09-24 17:20:12,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:12" (1/1) ... [2020-09-24 17:20:12,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:12" (1/1) ... [2020-09-24 17:20:12,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:12" (1/1) ... [2020-09-24 17:20:12,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:12" (1/1) ... [2020-09-24 17:20:12,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:12" (1/1) ... [2020-09-24 17:20:12,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:12" (1/1) ... [2020-09-24 17:20:12,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:20:12,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:20:12,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:20:12,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:20:12,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:20:12,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:20:12,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:20:12,668 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 17:20:12,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 17:20:12,668 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:20:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:20:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 17:20:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 17:20:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 17:20:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:20:12,669 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:20:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:20:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:20:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:20:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:20:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:20:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:20:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:20:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:20:13,106 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:20:13,106 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 17:20:13,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:20:13 BoogieIcfgContainer [2020-09-24 17:20:13,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:20:13,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:20:13,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:20:13,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:20:13,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:20:12" (1/3) ... [2020-09-24 17:20:13,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ff5dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:20:13, skipping insertion in model container [2020-09-24 17:20:13,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:12" (2/3) ... [2020-09-24 17:20:13,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ff5dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:20:13, skipping insertion in model container [2020-09-24 17:20:13,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:20:13" (3/3) ... [2020-09-24 17:20:13,123 INFO L109 eAbstractionObserver]: Analyzing ICFG sina4f.c [2020-09-24 17:20:13,134 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:20:13,144 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:20:13,165 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:20:13,201 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:20:13,202 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:20:13,202 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:20:13,202 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:20:13,202 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:20:13,202 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:20:13,203 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:20:13,203 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:20:13,227 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2020-09-24 17:20:13,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-09-24 17:20:13,236 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:20:13,237 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, 1] [2020-09-24 17:20:13,237 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:20:13,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:20:13,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1015859133, now seen corresponding path program 1 times [2020-09-24 17:20:13,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:20:13,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1164551399] [2020-09-24 17:20:13,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:20:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:20:13,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:20:13,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:20:13,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:20:13,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:20:13,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:20:14,197 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:20:14,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 17:20:14,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:20:14,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 783 [2020-09-24 17:20:14,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:20:14,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:20:14,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 17:20:14,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:20:14,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:20:14,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:20:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:20:14,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:20:14,313 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:20:14,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 17:20:14,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:20:14,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 17:20:14,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:20:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:20:14,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:20:14,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:20:14,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:20:14,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 17:20:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:20:14,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:20:14,333 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:20:14,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:20:14,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:20:14,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 17:20:14,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:20:14,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:20:14,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:20:14,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:20:14,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:20:14,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:20:14,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1164551399] [2020-09-24 17:20:14,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:20:14,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:20:14,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480163306] [2020-09-24 17:20:14,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:20:14,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:20:14,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:20:14,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:20:14,388 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 6 states. [2020-09-24 17:20:15,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:20:15,002 INFO L93 Difference]: Finished difference Result 194 states and 236 transitions. [2020-09-24 17:20:15,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 17:20:15,006 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-09-24 17:20:15,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:20:15,026 INFO L225 Difference]: With dead ends: 194 [2020-09-24 17:20:15,026 INFO L226 Difference]: Without dead ends: 104 [2020-09-24 17:20:15,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:20:15,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-09-24 17:20:15,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 76. [2020-09-24 17:20:15,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-24 17:20:15,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 80 transitions. [2020-09-24 17:20:15,143 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 80 transitions. Word has length 39 [2020-09-24 17:20:15,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:20:15,144 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 80 transitions. [2020-09-24 17:20:15,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:20:15,144 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 80 transitions. [2020-09-24 17:20:15,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 17:20:15,147 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:20:15,147 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, 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] [2020-09-24 17:20:15,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:20:15,150 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:20:15,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:20:15,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1779508689, now seen corresponding path program 1 times [2020-09-24 17:20:15,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:20:15,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33617552] [2020-09-24 17:20:15,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:20:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 17:20:15,233 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 17:20:15,233 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 17:20:15,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:20:15,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:20:15 BoogieIcfgContainer [2020-09-24 17:20:15,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 17:20:15,282 INFO L168 Benchmark]: Toolchain (without parser) took 3192.40 ms. Allocated memory was 140.0 MB in the beginning and 237.0 MB in the end (delta: 97.0 MB). Free memory was 103.1 MB in the beginning and 165.3 MB in the end (delta: -62.2 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2020-09-24 17:20:15,285 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 17:20:15,286 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.06 ms. Allocated memory is still 140.0 MB. Free memory was 102.4 MB in the beginning and 91.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-09-24 17:20:15,287 INFO L168 Benchmark]: Boogie Preprocessor took 142.68 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 91.8 MB in the beginning and 181.2 MB in the end (delta: -89.4 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-09-24 17:20:15,288 INFO L168 Benchmark]: RCFGBuilder took 530.15 ms. Allocated memory is still 203.9 MB. Free memory was 181.2 MB in the beginning and 159.1 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-09-24 17:20:15,289 INFO L168 Benchmark]: TraceAbstraction took 2164.32 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 158.4 MB in the beginning and 165.3 MB in the end (delta: -6.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-09-24 17:20:15,294 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 347.06 ms. Allocated memory is still 140.0 MB. Free memory was 102.4 MB in the beginning and 91.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 142.68 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 91.8 MB in the beginning and 181.2 MB in the end (delta: -89.4 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 530.15 ms. Allocated memory is still 203.9 MB. Free memory was 181.2 MB in the beginning and 159.1 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2164.32 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 158.4 MB in the beginning and 165.3 MB in the end (delta: -6.9 MB). Peak memory consumption was 26.1 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] long long *a = malloc(sizeof(long long)*N); [L28] long long *b = malloc(sizeof(long long)*N); [L30] sum[0] = 0 [L31] i=0 [L31] COND TRUE i