/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/mods.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 05:07:02,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 05:07:02,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 05:07:02,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 05:07:02,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 05:07:02,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 05:07:02,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 05:07:02,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 05:07:02,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 05:07:02,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 05:07:02,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 05:07:02,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 05:07:02,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 05:07:02,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 05:07:02,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 05:07:02,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 05:07:02,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 05:07:02,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 05:07:02,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 05:07:02,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 05:07:02,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 05:07:02,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 05:07:02,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 05:07:02,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 05:07:02,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 05:07:02,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 05:07:02,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 05:07:02,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 05:07:02,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 05:07:02,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 05:07:02,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 05:07:02,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 05:07:02,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 05:07:02,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 05:07:02,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 05:07:02,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 05:07:02,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 05:07:02,723 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 05:07:02,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 05:07:02,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 05:07:02,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 05:07:02,726 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 05:07:02,771 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 05:07:02,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 05:07:02,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 05:07:02,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 05:07:02,774 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 05:07:02,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 05:07:02,775 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 05:07:02,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 05:07:02,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 05:07:02,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 05:07:02,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 05:07:02,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 05:07:02,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 05:07:02,778 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 05:07:02,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 05:07:02,778 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 05:07:02,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 05:07:02,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 05:07:02,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 05:07:02,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 05:07:02,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 05:07:02,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 05:07:02,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 05:07:02,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 05:07:02,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 05:07:02,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 05:07:02,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 05:07:02,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 05:07:02,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 05:07:02,781 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 05:07:03,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 05:07:03,113 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 05:07:03,117 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 05:07:03,119 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 05:07:03,119 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 05:07:03,120 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/mods.c [2020-10-13 05:07:03,192 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7a82ec0b/9b0a546dfafb4754870a3612b5aaaa43/FLAGd652002cb [2020-10-13 05:07:03,655 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 05:07:03,655 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/mods.c [2020-10-13 05:07:03,662 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7a82ec0b/9b0a546dfafb4754870a3612b5aaaa43/FLAGd652002cb [2020-10-13 05:07:04,037 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7a82ec0b/9b0a546dfafb4754870a3612b5aaaa43 [2020-10-13 05:07:04,047 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 05:07:04,049 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 05:07:04,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 05:07:04,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 05:07:04,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 05:07:04,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:07:04" (1/1) ... [2020-10-13 05:07:04,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44dc5d33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:04, skipping insertion in model container [2020-10-13 05:07:04,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:07:04" (1/1) ... [2020-10-13 05:07:04,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 05:07:04,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 05:07:04,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:07:04,280 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 05:07:04,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:07:04,321 INFO L208 MainTranslator]: Completed translation [2020-10-13 05:07:04,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:04 WrapperNode [2020-10-13 05:07:04,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 05:07:04,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 05:07:04,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 05:07:04,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 05:07:04,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:04" (1/1) ... [2020-10-13 05:07:04,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:04" (1/1) ... [2020-10-13 05:07:04,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:04" (1/1) ... [2020-10-13 05:07:04,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:04" (1/1) ... [2020-10-13 05:07:04,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:04" (1/1) ... [2020-10-13 05:07:04,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:04" (1/1) ... [2020-10-13 05:07:04,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:04" (1/1) ... [2020-10-13 05:07:04,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 05:07:04,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 05:07:04,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 05:07:04,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 05:07:04,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 05:07:04,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 05:07:04,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 05:07:04,500 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 05:07:04,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-13 05:07:04,500 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 05:07:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 05:07:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 05:07:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 05:07:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 05:07:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 05:07:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 05:07:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 05:07:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 05:07:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 05:07:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 05:07:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 05:07:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 05:07:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 05:07:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 05:07:04,826 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 05:07:04,826 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 05:07:04,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:07:04 BoogieIcfgContainer [2020-10-13 05:07:04,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 05:07:04,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 05:07:04,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 05:07:04,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 05:07:04,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:07:04" (1/3) ... [2020-10-13 05:07:04,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3417df10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:07:04, skipping insertion in model container [2020-10-13 05:07:04,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:07:04" (2/3) ... [2020-10-13 05:07:04,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3417df10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:07:04, skipping insertion in model container [2020-10-13 05:07:04,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:07:04" (3/3) ... [2020-10-13 05:07:04,842 INFO L109 eAbstractionObserver]: Analyzing ICFG mods.c [2020-10-13 05:07:04,854 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 05:07:04,861 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 05:07:04,877 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 05:07:04,912 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 05:07:04,913 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 05:07:04,913 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 05:07:04,913 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 05:07:04,913 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 05:07:04,914 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 05:07:04,914 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 05:07:04,914 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 05:07:04,935 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-10-13 05:07:04,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-13 05:07:04,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:07:04,942 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] [2020-10-13 05:07:04,942 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:07:04,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:07:04,948 INFO L82 PathProgramCache]: Analyzing trace with hash -173101897, now seen corresponding path program 1 times [2020-10-13 05:07:04,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:07:04,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119334699] [2020-10-13 05:07:04,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:07:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:07:05,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:05,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:05,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:05,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:05,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:05,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:05,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:05,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:06,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:07:06,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-13 05:07:06,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 05:07:06,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1307 [2020-10-13 05:07:06,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:07:06,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:07:06,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 05:07:06,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:07:06,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 05:07:06,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:07:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:07:06,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:06,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:07:06,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:07:06,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:07:06,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 05:07:06,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:07:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:07:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:07:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:07:06,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:07:06,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 05:07:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:07:06,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:06,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:07:06,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:07:06,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:07:06,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:07:06,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:07:06,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:07:06,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 05:07:06,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:07:06,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:07:06,509 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 05:07:06,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119334699] [2020-10-13 05:07:06,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:07:06,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 05:07:06,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008907413] [2020-10-13 05:07:06,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 05:07:06,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:07:06,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 05:07:06,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:07:06,539 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2020-10-13 05:07:06,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:07:06,678 INFO L93 Difference]: Finished difference Result 70 states and 93 transitions. [2020-10-13 05:07:06,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 05:07:06,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-10-13 05:07:06,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:07:06,690 INFO L225 Difference]: With dead ends: 70 [2020-10-13 05:07:06,690 INFO L226 Difference]: Without dead ends: 35 [2020-10-13 05:07:06,694 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 05:07:06,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-13 05:07:06,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-13 05:07:06,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-13 05:07:06,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-10-13 05:07:06,734 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 26 [2020-10-13 05:07:06,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:07:06,735 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-10-13 05:07:06,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 05:07:06,735 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-10-13 05:07:06,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-13 05:07:06,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:07:06,737 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] [2020-10-13 05:07:06,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 05:07:06,738 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:07:06,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:07:06,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1503462707, now seen corresponding path program 1 times [2020-10-13 05:07:06,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:07:06,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [133180646] [2020-10-13 05:07:06,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:07:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:07:06,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:06,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:06,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:06,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:06,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:06,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:06,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:06,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:07,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:07:07,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-13 05:07:07,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 05:07:07,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 844 [2020-10-13 05:07:07,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:07:07,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 05:07:07,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 05:07:07,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 05:07:07,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:07:07,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:07:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:07:07,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:07,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:07:07,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:07:07,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:07:07,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:07:07,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:07:07,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:07:07,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:07:07,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:07:07,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:07:07,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 05:07:07,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:07:07,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:07:07,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:07:07,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:07:07,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:07:07,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:07:07,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:07:07,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:07:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:07:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:07:07,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:07:07,671 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 05:07:07,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [133180646] [2020-10-13 05:07:07,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:07:07,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 05:07:07,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787842498] [2020-10-13 05:07:07,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 05:07:07,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:07:07,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 05:07:07,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 05:07:07,676 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 6 states. [2020-10-13 05:07:07,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:07:07,943 INFO L93 Difference]: Finished difference Result 74 states and 89 transitions. [2020-10-13 05:07:07,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 05:07:07,944 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-10-13 05:07:07,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:07:07,947 INFO L225 Difference]: With dead ends: 74 [2020-10-13 05:07:07,948 INFO L226 Difference]: Without dead ends: 47 [2020-10-13 05:07:07,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-13 05:07:07,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-13 05:07:07,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 39. [2020-10-13 05:07:07,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-13 05:07:07,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2020-10-13 05:07:07,963 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 26 [2020-10-13 05:07:07,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:07:07,964 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2020-10-13 05:07:07,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 05:07:07,964 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2020-10-13 05:07:07,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-13 05:07:07,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:07:07,965 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] [2020-10-13 05:07:07,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 05:07:07,966 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:07:07,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:07:07,967 INFO L82 PathProgramCache]: Analyzing trace with hash -260192085, now seen corresponding path program 1 times [2020-10-13 05:07:07,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:07:07,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2133622635] [2020-10-13 05:07:07,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:07:07,983 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-13 05:07:07,984 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-13 05:07:07,984 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 05:07:07,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 05:07:08,009 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-13 05:07:08,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 05:07:08 BoogieIcfgContainer [2020-10-13 05:07:08,010 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 05:07:08,013 INFO L168 Benchmark]: Toolchain (without parser) took 3963.16 ms. Allocated memory was 138.4 MB in the beginning and 250.6 MB in the end (delta: 112.2 MB). Free memory was 101.6 MB in the beginning and 218.1 MB in the end (delta: -116.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 05:07:08,014 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-13 05:07:08,015 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.88 ms. Allocated memory is still 138.4 MB. Free memory was 101.4 MB in the beginning and 90.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-10-13 05:07:08,016 INFO L168 Benchmark]: Boogie Preprocessor took 116.70 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 90.6 MB in the beginning and 178.5 MB in the end (delta: -87.9 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-10-13 05:07:08,017 INFO L168 Benchmark]: RCFGBuilder took 395.14 ms. Allocated memory is still 201.3 MB. Free memory was 178.5 MB in the beginning and 159.5 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2020-10-13 05:07:08,017 INFO L168 Benchmark]: TraceAbstraction took 3173.95 ms. Allocated memory was 201.3 MB in the beginning and 250.6 MB in the end (delta: 49.3 MB). Free memory was 158.9 MB in the beginning and 218.1 MB in the end (delta: -59.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 05:07:08,021 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 271.88 ms. Allocated memory is still 138.4 MB. Free memory was 101.4 MB in the beginning and 90.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.70 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 90.6 MB in the beginning and 178.5 MB in the end (delta: -87.9 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 395.14 ms. Allocated memory is still 201.3 MB. Free memory was 178.5 MB in the beginning and 159.5 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3173.95 ms. Allocated memory was 201.3 MB in the beginning and 250.6 MB in the end (delta: 49.3 MB). Free memory was 158.9 MB in the beginning and 218.1 MB in the end (delta: -59.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: 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: [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); [L29] sum[0] = 0 [L30] i=0 [L30] COND TRUE i