/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/s42if.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 03:57:17,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 03:57:17,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 03:57:17,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 03:57:17,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 03:57:17,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 03:57:17,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 03:57:17,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 03:57:17,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 03:57:17,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 03:57:17,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 03:57:17,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 03:57:17,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 03:57:17,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 03:57:17,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 03:57:17,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 03:57:17,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 03:57:17,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 03:57:17,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 03:57:17,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 03:57:17,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 03:57:17,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 03:57:17,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 03:57:17,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 03:57:17,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 03:57:17,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 03:57:17,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 03:57:17,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 03:57:17,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 03:57:17,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 03:57:17,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 03:57:17,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 03:57:17,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 03:57:17,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 03:57:17,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 03:57:17,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 03:57:17,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 03:57:17,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 03:57:17,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 03:57:17,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 03:57:17,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 03:57:17,673 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 03:57:17,740 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 03:57:17,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 03:57:17,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 03:57:17,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 03:57:17,743 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 03:57:17,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 03:57:17,743 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 03:57:17,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 03:57:17,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 03:57:17,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 03:57:17,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 03:57:17,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 03:57:17,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 03:57:17,746 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 03:57:17,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 03:57:17,746 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 03:57:17,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 03:57:17,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 03:57:17,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 03:57:17,747 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 03:57:17,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 03:57:17,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 03:57:17,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 03:57:17,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 03:57:17,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 03:57:17,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 03:57:17,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 03:57:17,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 03:57:17,749 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 03:57:17,750 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 03:57:18,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 03:57:18,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 03:57:18,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 03:57:18,272 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 03:57:18,277 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 03:57:18,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s42if.c [2020-10-29 03:57:18,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90e651116/9247ff3982014494b1e846727bb29282/FLAGf21f4eb91 [2020-10-29 03:57:19,034 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 03:57:19,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s42if.c [2020-10-29 03:57:19,044 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90e651116/9247ff3982014494b1e846727bb29282/FLAGf21f4eb91 [2020-10-29 03:57:19,341 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90e651116/9247ff3982014494b1e846727bb29282 [2020-10-29 03:57:19,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 03:57:19,351 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 03:57:19,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 03:57:19,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 03:57:19,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 03:57:19,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:57:19" (1/1) ... [2020-10-29 03:57:19,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b9d3bdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:19, skipping insertion in model container [2020-10-29 03:57:19,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:57:19" (1/1) ... [2020-10-29 03:57:19,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 03:57:19,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 03:57:19,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 03:57:19,569 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 03:57:19,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 03:57:19,617 INFO L208 MainTranslator]: Completed translation [2020-10-29 03:57:19,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:19 WrapperNode [2020-10-29 03:57:19,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 03:57:19,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 03:57:19,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 03:57:19,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 03:57:19,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:19" (1/1) ... [2020-10-29 03:57:19,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:19" (1/1) ... [2020-10-29 03:57:19,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:19" (1/1) ... [2020-10-29 03:57:19,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:19" (1/1) ... [2020-10-29 03:57:19,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:19" (1/1) ... [2020-10-29 03:57:19,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:19" (1/1) ... [2020-10-29 03:57:19,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:19" (1/1) ... [2020-10-29 03:57:19,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 03:57:19,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 03:57:19,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 03:57:19,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 03:57:19,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:19" (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 03:57:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 03:57:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 03:57:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 03:57:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 03:57:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 03:57:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 03:57:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 03:57:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 03:57:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 03:57:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 03:57:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 03:57:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 03:57:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 03:57:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 03:57:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 03:57:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 03:57:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 03:57:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 03:57:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 03:57:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 03:57:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 03:57:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 03:57:20,423 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 03:57:20,423 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-29 03:57:20,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:57:20 BoogieIcfgContainer [2020-10-29 03:57:20,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 03:57:20,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 03:57:20,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 03:57:20,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 03:57:20,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 03:57:19" (1/3) ... [2020-10-29 03:57:20,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27b18b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:57:20, skipping insertion in model container [2020-10-29 03:57:20,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:19" (2/3) ... [2020-10-29 03:57:20,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27b18b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:57:20, skipping insertion in model container [2020-10-29 03:57:20,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:57:20" (3/3) ... [2020-10-29 03:57:20,439 INFO L111 eAbstractionObserver]: Analyzing ICFG s42if.c [2020-10-29 03:57:20,454 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 03:57:20,461 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 03:57:20,476 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 03:57:20,520 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 03:57:20,520 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 03:57:20,521 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 03:57:20,521 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 03:57:20,521 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 03:57:20,521 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 03:57:20,521 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 03:57:20,522 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 03:57:20,543 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-10-29 03:57:20,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-29 03:57:20,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:57:20,551 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] [2020-10-29 03:57:20,552 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:57:20,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:57:20,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1702539242, now seen corresponding path program 1 times [2020-10-29 03:57:20,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:57:20,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24894671] [2020-10-29 03:57:20,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:57:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:57:20,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:20,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:20,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:20,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:21,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:57:21,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 03:57:21,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 03:57:21,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 552 [2020-10-29 03:57:21,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:57:21,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:57:21,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 03:57:21,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 03:57:21,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 03:57:21,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 03:57:21,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:57:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:57:21,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:21,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:57:21,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:57:21,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:57:21,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 03:57:21,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:57:21,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:57:21,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:57:21,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:57:21,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:57:21,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:57:21,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 03:57:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:57:21,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:21,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:21,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:57:21,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:57:21,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:57:21,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 03:57:21,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:57:21,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:57:21,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:57:21,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:57:21,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:57:21,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:57:21,473 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 03:57:21,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24894671] [2020-10-29 03:57:21,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 03:57:21,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 03:57:21,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962428182] [2020-10-29 03:57:21,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 03:57:21,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:57:21,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 03:57:21,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 03:57:21,505 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 5 states. [2020-10-29 03:57:21,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:57:21,788 INFO L93 Difference]: Finished difference Result 79 states and 106 transitions. [2020-10-29 03:57:21,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 03:57:21,790 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-29 03:57:21,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:57:21,800 INFO L225 Difference]: With dead ends: 79 [2020-10-29 03:57:21,801 INFO L226 Difference]: Without dead ends: 38 [2020-10-29 03:57:21,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 03:57:21,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-29 03:57:21,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 33. [2020-10-29 03:57:21,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-29 03:57:21,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-10-29 03:57:21,858 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 24 [2020-10-29 03:57:21,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:57:21,859 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-10-29 03:57:21,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 03:57:21,860 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-10-29 03:57:21,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-29 03:57:21,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:57:21,861 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] [2020-10-29 03:57:21,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 03:57:21,862 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:57:21,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:57:21,863 INFO L82 PathProgramCache]: Analyzing trace with hash -856996485, now seen corresponding path program 1 times [2020-10-29 03:57:21,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:57:21,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [610672024] [2020-10-29 03:57:21,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:57:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:57:21,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:22,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:22,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:22,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:23,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:23,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:23,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:24,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:24,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:26,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:57:26,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 03:57:26,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 03:57:26,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 03:57:26,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:57:26,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:57:26,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 03:57:26,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 03:57:26,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 03:57:26,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:57:27,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:57:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:57:27,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:27,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:57:27,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:57:27,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:57:27,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 03:57:27,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:57:27,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:57:27,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:57:27,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:57:27,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:57:27,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:57:27,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 03:57:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:57:27,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:27,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:57:27,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:57:27,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:57:27,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:57:27,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:57:27,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:57:27,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:57:27,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:57:27,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:57:27,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:57:27,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 03:57:27,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [610672024] [2020-10-29 03:57:27,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:57:27,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 03:57:27,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644265438] [2020-10-29 03:57:27,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 03:57:27,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:57:27,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 03:57:27,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-29 03:57:27,241 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 12 states. [2020-10-29 03:57:28,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:57:28,008 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2020-10-29 03:57:28,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 03:57:28,009 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 32 [2020-10-29 03:57:28,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:57:28,013 INFO L225 Difference]: With dead ends: 62 [2020-10-29 03:57:28,013 INFO L226 Difference]: Without dead ends: 55 [2020-10-29 03:57:28,014 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2020-10-29 03:57:28,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-29 03:57:28,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 46. [2020-10-29 03:57:28,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-29 03:57:28,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2020-10-29 03:57:28,028 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 32 [2020-10-29 03:57:28,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:57:28,029 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2020-10-29 03:57:28,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 03:57:28,029 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2020-10-29 03:57:28,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-29 03:57:28,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:57:28,031 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] [2020-10-29 03:57:28,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 03:57:28,031 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:57:28,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:57:28,032 INFO L82 PathProgramCache]: Analyzing trace with hash -176938115, now seen corresponding path program 1 times [2020-10-29 03:57:28,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:57:28,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [936092482] [2020-10-29 03:57:28,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:57:28,047 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-29 03:57:28,047 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-29 03:57:28,048 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 03:57:28,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 03:57:28,071 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-29 03:57:28,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 03:57:28 BoogieIcfgContainer [2020-10-29 03:57:28,071 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 03:57:28,074 INFO L168 Benchmark]: Toolchain (without parser) took 8726.58 ms. Allocated memory was 155.2 MB in the beginning and 248.5 MB in the end (delta: 93.3 MB). Free memory was 129.5 MB in the beginning and 94.9 MB in the end (delta: 34.6 MB). Peak memory consumption was 128.8 MB. Max. memory is 8.0 GB. [2020-10-29 03:57:28,075 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 155.2 MB. Free memory is still 126.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 03:57:28,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.59 ms. Allocated memory is still 155.2 MB. Free memory was 129.0 MB in the beginning and 118.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-29 03:57:28,077 INFO L168 Benchmark]: Boogie Preprocessor took 47.99 ms. Allocated memory is still 155.2 MB. Free memory was 118.9 MB in the beginning and 117.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-29 03:57:28,078 INFO L168 Benchmark]: RCFGBuilder took 758.19 ms. Allocated memory is still 155.2 MB. Free memory was 117.2 MB in the beginning and 134.8 MB in the end (delta: -17.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 8.0 GB. [2020-10-29 03:57:28,079 INFO L168 Benchmark]: TraceAbstraction took 7642.52 ms. Allocated memory was 155.2 MB in the beginning and 248.5 MB in the end (delta: 93.3 MB). Free memory was 134.3 MB in the beginning and 94.9 MB in the end (delta: 39.4 MB). Peak memory consumption was 132.2 MB. Max. memory is 8.0 GB. [2020-10-29 03:57:28,083 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 155.2 MB. Free memory is still 126.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 264.59 ms. Allocated memory is still 155.2 MB. Free memory was 129.0 MB in the beginning and 118.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.99 ms. Allocated memory is still 155.2 MB. Free memory was 118.9 MB in the beginning and 117.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 758.19 ms. Allocated memory is still 155.2 MB. Free memory was 117.2 MB in the beginning and 134.8 MB in the end (delta: -17.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7642.52 ms. Allocated memory was 155.2 MB in the beginning and 248.5 MB in the end (delta: 93.3 MB). Free memory was 134.3 MB in the beginning and 94.9 MB in the end (delta: 39.4 MB). Peak memory consumption was 132.2 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] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 0 [L32] i=0 [L32] COND TRUE i