/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/s2liff.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 23:52:51,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 23:52:51,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 23:52:51,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 23:52:51,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 23:52:51,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 23:52:51,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 23:52:51,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 23:52:51,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 23:52:51,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 23:52:51,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 23:52:51,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 23:52:51,320 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 23:52:51,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 23:52:51,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 23:52:51,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 23:52:51,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 23:52:51,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 23:52:51,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 23:52:51,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 23:52:51,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 23:52:51,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 23:52:51,342 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 23:52:51,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 23:52:51,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 23:52:51,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 23:52:51,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 23:52:51,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 23:52:51,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 23:52:51,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 23:52:51,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 23:52:51,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 23:52:51,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 23:52:51,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 23:52:51,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 23:52:51,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 23:52:51,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 23:52:51,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 23:52:51,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 23:52:51,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 23:52:51,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 23:52:51,363 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 23:52:51,393 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 23:52:51,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 23:52:51,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 23:52:51,395 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 23:52:51,395 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 23:52:51,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 23:52:51,395 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 23:52:51,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 23:52:51,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 23:52:51,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 23:52:51,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 23:52:51,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 23:52:51,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 23:52:51,396 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 23:52:51,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 23:52:51,397 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 23:52:51,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 23:52:51,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 23:52:51,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 23:52:51,398 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 23:52:51,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 23:52:51,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 23:52:51,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 23:52:51,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 23:52:51,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 23:52:51,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 23:52:51,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 23:52:51,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 23:52:51,399 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 23:52:51,400 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-13 23:52:51,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 23:52:51,725 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 23:52:51,733 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 23:52:51,735 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 23:52:51,736 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 23:52:51,736 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s2liff.c [2020-10-13 23:52:51,795 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/40fc689d1/92339b5f74aa45019cfe54ed713c5083/FLAG797d0dfd4 [2020-10-13 23:52:52,218 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 23:52:52,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s2liff.c [2020-10-13 23:52:52,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/40fc689d1/92339b5f74aa45019cfe54ed713c5083/FLAG797d0dfd4 [2020-10-13 23:52:52,625 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/40fc689d1/92339b5f74aa45019cfe54ed713c5083 [2020-10-13 23:52:52,633 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 23:52:52,634 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 23:52:52,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 23:52:52,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 23:52:52,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 23:52:52,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:52:52" (1/1) ... [2020-10-13 23:52:52,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe964b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:52, skipping insertion in model container [2020-10-13 23:52:52,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:52:52" (1/1) ... [2020-10-13 23:52:52,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 23:52:52,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 23:52:52,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:52:52,879 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 23:52:52,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:52:52,939 INFO L208 MainTranslator]: Completed translation [2020-10-13 23:52:52,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:52 WrapperNode [2020-10-13 23:52:52,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 23:52:52,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 23:52:52,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 23:52:52,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 23:52:53,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:52" (1/1) ... [2020-10-13 23:52:53,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:52" (1/1) ... [2020-10-13 23:52:53,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:52" (1/1) ... [2020-10-13 23:52:53,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:52" (1/1) ... [2020-10-13 23:52:53,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:52" (1/1) ... [2020-10-13 23:52:53,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:52" (1/1) ... [2020-10-13 23:52:53,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:52" (1/1) ... [2020-10-13 23:52:53,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 23:52:53,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 23:52:53,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 23:52:53,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 23:52:53,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:52" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 23:52:53,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 23:52:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 23:52:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 23:52:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-13 23:52:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 23:52:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 23:52:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 23:52:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 23:52:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 23:52:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 23:52:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 23:52:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 23:52:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 23:52:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 23:52:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 23:52:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 23:52:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 23:52:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 23:52:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 23:52:53,425 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 23:52:53,425 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-13 23:52:53,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:52:53 BoogieIcfgContainer [2020-10-13 23:52:53,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 23:52:53,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 23:52:53,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 23:52:53,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 23:52:53,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:52:52" (1/3) ... [2020-10-13 23:52:53,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc7a949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:52:53, skipping insertion in model container [2020-10-13 23:52:53,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:52:52" (2/3) ... [2020-10-13 23:52:53,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc7a949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:52:53, skipping insertion in model container [2020-10-13 23:52:53,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:52:53" (3/3) ... [2020-10-13 23:52:53,451 INFO L109 eAbstractionObserver]: Analyzing ICFG s2liff.c [2020-10-13 23:52:53,483 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 23:52:53,506 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 23:52:53,527 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 23:52:53,555 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 23:52:53,556 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 23:52:53,556 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 23:52:53,556 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 23:52:53,556 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 23:52:53,557 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 23:52:53,557 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 23:52:53,557 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 23:52:53,580 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-10-13 23:52:53,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-13 23:52:53,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:52:53,588 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] [2020-10-13 23:52:53,589 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:52:53,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:52:53,594 INFO L82 PathProgramCache]: Analyzing trace with hash -88121349, now seen corresponding path program 1 times [2020-10-13 23:52:53,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:52:53,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529003401] [2020-10-13 23:52:53,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:52:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:52:53,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:52:53,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:52:53,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:52:53,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:52:54,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:52:54,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 23:52:54,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 23:52:54,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-10-13 23:52:54,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:52:54,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:52:54,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:52:54,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 23:52:54,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:52:54,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 23:52:54,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:52:54,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:52:54,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:52:54,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:52:54,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:52:54,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:52:54,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:52:54,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:52:54,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:52:54,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:52:54,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:52:54,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:52:54,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 23:52:54,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:52:54,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:52:54,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:52:54,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:52:54,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:52:54,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:52:54,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:52:54,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:52:54,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:52:54,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:52:54,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 23:52:54,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:52:54,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:52:54,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 23:52:54,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529003401] [2020-10-13 23:52:54,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:52:54,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 23:52:54,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281757611] [2020-10-13 23:52:54,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 23:52:54,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:52:54,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 23:52:54,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 23:52:54,901 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 3 states. [2020-10-13 23:52:55,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:52:55,048 INFO L93 Difference]: Finished difference Result 60 states and 77 transitions. [2020-10-13 23:52:55,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 23:52:55,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-10-13 23:52:55,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:52:55,060 INFO L225 Difference]: With dead ends: 60 [2020-10-13 23:52:55,060 INFO L226 Difference]: Without dead ends: 28 [2020-10-13 23:52:55,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 23:52:55,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-13 23:52:55,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-13 23:52:55,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-13 23:52:55,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2020-10-13 23:52:55,121 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 23 [2020-10-13 23:52:55,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:52:55,122 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2020-10-13 23:52:55,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 23:52:55,123 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2020-10-13 23:52:55,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-13 23:52:55,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:52:55,126 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] [2020-10-13 23:52:55,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 23:52:55,129 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:52:55,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:52:55,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1099238599, now seen corresponding path program 1 times [2020-10-13 23:52:55,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:52:55,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107486628] [2020-10-13 23:52:55,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:52:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:52:55,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:52:55,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:52:55,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:52:55,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:52:55,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 23:52:55,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:52:55,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-13 23:52:55,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:52:55,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:52:55,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 23:52:55,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 23:52:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 23:52:55,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-13 23:52:55,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:52:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:52:55,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:52:55,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:52:55,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:52:55,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:52:55,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:52:55,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:52:55,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:52:55,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:52:55,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:52:55,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:52:55,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:52:55,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:52:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:52:55,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:52:55,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:52:55,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:52:55,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:52:55,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:52:55,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:52:55,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:52:55,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:52:55,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:52:55,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:52:55,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:52:55,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 23:52:55,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107486628] [2020-10-13 23:52:55,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:52:55,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 23:52:55,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736142980] [2020-10-13 23:52:55,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 23:52:55,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:52:55,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 23:52:55,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 23:52:55,466 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 5 states. [2020-10-13 23:52:55,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:52:55,597 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2020-10-13 23:52:55,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 23:52:55,597 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-10-13 23:52:55,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:52:55,599 INFO L225 Difference]: With dead ends: 44 [2020-10-13 23:52:55,599 INFO L226 Difference]: Without dead ends: 31 [2020-10-13 23:52:55,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 23:52:55,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-13 23:52:55,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-13 23:52:55,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-13 23:52:55,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2020-10-13 23:52:55,609 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 23 [2020-10-13 23:52:55,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:52:55,609 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2020-10-13 23:52:55,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 23:52:55,610 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2020-10-13 23:52:55,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-13 23:52:55,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:52:55,611 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] [2020-10-13 23:52:55,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 23:52:55,611 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:52:55,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:52:55,612 INFO L82 PathProgramCache]: Analyzing trace with hash 188437731, now seen corresponding path program 1 times [2020-10-13 23:52:55,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:52:55,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836053760] [2020-10-13 23:52:55,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:52:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 23:52:55,633 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 23:52:55,633 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 23:52:55,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 23:52:55,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 11:52:55 BoogieIcfgContainer [2020-10-13 23:52:55,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 23:52:55,660 INFO L168 Benchmark]: Toolchain (without parser) took 3024.52 ms. Allocated memory was 138.9 MB in the beginning and 233.8 MB in the end (delta: 94.9 MB). Free memory was 102.0 MB in the beginning and 119.6 MB in the end (delta: -17.6 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. [2020-10-13 23:52:55,661 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-13 23:52:55,662 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.92 ms. Allocated memory is still 138.9 MB. Free memory was 101.6 MB in the beginning and 91.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-10-13 23:52:55,663 INFO L168 Benchmark]: Boogie Preprocessor took 131.91 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 91.1 MB in the beginning and 179.0 MB in the end (delta: -88.0 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-10-13 23:52:55,664 INFO L168 Benchmark]: RCFGBuilder took 354.68 ms. Allocated memory is still 201.9 MB. Free memory was 179.0 MB in the beginning and 161.1 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2020-10-13 23:52:55,665 INFO L168 Benchmark]: TraceAbstraction took 2225.29 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 161.1 MB in the beginning and 119.6 MB in the end (delta: 41.6 MB). Peak memory consumption was 73.5 MB. Max. memory is 7.1 GB. [2020-10-13 23:52:55,669 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 305.92 ms. Allocated memory is still 138.9 MB. Free memory was 101.6 MB in the beginning and 91.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.91 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 91.1 MB in the beginning and 179.0 MB in the end (delta: -88.0 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 354.68 ms. Allocated memory is still 201.9 MB. Free memory was 179.0 MB in the beginning and 161.1 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2225.29 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 161.1 MB in the beginning and 119.6 MB in the end (delta: 41.6 MB). Peak memory consumption was 73.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] sum[0] = N [L30] i=0 [L30] COND TRUE i