/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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/indp4f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 18:12:04,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 18:12:04,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 18:12:04,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 18:12:04,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 18:12:04,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 18:12:04,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 18:12:04,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 18:12:04,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 18:12:04,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 18:12:04,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 18:12:04,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 18:12:04,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 18:12:04,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 18:12:04,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 18:12:04,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 18:12:04,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 18:12:04,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 18:12:04,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 18:12:04,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 18:12:04,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 18:12:04,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 18:12:04,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 18:12:04,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 18:12:04,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 18:12:04,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 18:12:04,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 18:12:04,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 18:12:04,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 18:12:04,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 18:12:04,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 18:12:04,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 18:12:04,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 18:12:04,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 18:12:04,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 18:12:04,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 18:12:04,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 18:12:04,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 18:12:04,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 18:12:04,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 18:12:04,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 18:12:04,768 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 [2020-10-14 18:12:04,789 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 18:12:04,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 18:12:04,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 18:12:04,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 18:12:04,791 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 18:12:04,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 18:12:04,792 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 18:12:04,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 18:12:04,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 18:12:04,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 18:12:04,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 18:12:04,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 18:12:04,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 18:12:04,793 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 18:12:04,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 18:12:04,793 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 18:12:04,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 18:12:04,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 18:12:04,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 18:12:04,794 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 18:12:04,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 18:12:04,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 18:12:04,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 18:12:04,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 18:12:04,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 18:12:04,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 18:12:04,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 18:12:04,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 18:12:04,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 18:12:04,796 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 18:12:05,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 18:12:05,116 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 18:12:05,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 18:12:05,122 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 18:12:05,122 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 18:12:05,123 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp4f.c [2020-10-14 18:12:05,185 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9e4a0672/9cd0cc2d40cf4ea19b1698cc9b97053e/FLAGd4c599467 [2020-10-14 18:12:05,631 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 18:12:05,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/indp4f.c [2020-10-14 18:12:05,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9e4a0672/9cd0cc2d40cf4ea19b1698cc9b97053e/FLAGd4c599467 [2020-10-14 18:12:06,031 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9e4a0672/9cd0cc2d40cf4ea19b1698cc9b97053e [2020-10-14 18:12:06,039 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 18:12:06,041 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 18:12:06,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 18:12:06,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 18:12:06,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 18:12:06,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:12:06" (1/1) ... [2020-10-14 18:12:06,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6256357c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:06, skipping insertion in model container [2020-10-14 18:12:06,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:12:06" (1/1) ... [2020-10-14 18:12:06,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 18:12:06,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 18:12:06,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:12:06,273 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 18:12:06,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:12:06,312 INFO L208 MainTranslator]: Completed translation [2020-10-14 18:12:06,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:06 WrapperNode [2020-10-14 18:12:06,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 18:12:06,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 18:12:06,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 18:12:06,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 18:12:06,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:06" (1/1) ... [2020-10-14 18:12:06,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:06" (1/1) ... [2020-10-14 18:12:06,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:06" (1/1) ... [2020-10-14 18:12:06,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:06" (1/1) ... [2020-10-14 18:12:06,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:06" (1/1) ... [2020-10-14 18:12:06,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:06" (1/1) ... [2020-10-14 18:12:06,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:06" (1/1) ... [2020-10-14 18:12:06,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 18:12:06,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 18:12:06,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 18:12:06,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 18:12:06,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:06" (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 [2020-10-14 18:12:06,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 18:12:06,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 18:12:06,568 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 18:12:06,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 18:12:06,568 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 18:12:06,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 18:12:06,569 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 18:12:06,570 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 18:12:06,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 18:12:06,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 18:12:06,570 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 18:12:06,570 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 18:12:06,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 18:12:06,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 18:12:06,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 18:12:06,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 18:12:06,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 18:12:06,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 18:12:06,882 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 18:12:06,883 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-14 18:12:06,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:12:06 BoogieIcfgContainer [2020-10-14 18:12:06,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 18:12:06,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 18:12:06,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 18:12:06,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 18:12:06,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 06:12:06" (1/3) ... [2020-10-14 18:12:06,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793c5a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:12:06, skipping insertion in model container [2020-10-14 18:12:06,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:12:06" (2/3) ... [2020-10-14 18:12:06,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793c5a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:12:06, skipping insertion in model container [2020-10-14 18:12:06,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:12:06" (3/3) ... [2020-10-14 18:12:06,896 INFO L109 eAbstractionObserver]: Analyzing ICFG indp4f.c [2020-10-14 18:12:06,908 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 18:12:06,916 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 18:12:06,933 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 18:12:06,965 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 18:12:06,966 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 18:12:06,966 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 18:12:06,966 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 18:12:06,967 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 18:12:06,967 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 18:12:06,967 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 18:12:06,967 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 18:12:06,992 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-10-14 18:12:06,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-14 18:12:07,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:12:07,001 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] [2020-10-14 18:12:07,002 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:12:07,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:12:07,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1155719453, now seen corresponding path program 1 times [2020-10-14 18:12:07,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:12:07,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1596734295] [2020-10-14 18:12:07,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:12:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:12:07,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:12:07,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:12:07,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1596734295] [2020-10-14 18:12:07,273 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2020-10-14 18:12:07,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-14 18:12:07,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-14 18:12:07,274 ERROR L206 FreeRefinementEngine]: Strategy FIXED_PREFERENCES failed to provide any proof altough trace is infeasible [2020-10-14 18:12:07,275 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 18:12:07,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 18:12:07,297 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-14 18:12:07,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:12:07 BoogieIcfgContainer [2020-10-14 18:12:07,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 18:12:07,301 INFO L168 Benchmark]: Toolchain (without parser) took 1258.27 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 103.8 MB in the beginning and 147.5 MB in the end (delta: -43.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-10-14 18:12:07,302 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-14 18:12:07,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.69 ms. Allocated memory is still 147.8 MB. Free memory was 103.8 MB in the beginning and 93.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-10-14 18:12:07,304 INFO L168 Benchmark]: Boogie Preprocessor took 169.27 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 93.4 MB in the beginning and 181.4 MB in the end (delta: -88.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-10-14 18:12:07,305 INFO L168 Benchmark]: RCFGBuilder took 402.28 ms. Allocated memory is still 203.9 MB. Free memory was 181.4 MB in the beginning and 163.5 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2020-10-14 18:12:07,306 INFO L168 Benchmark]: TraceAbstraction took 409.20 ms. Allocated memory is still 203.9 MB. Free memory was 163.5 MB in the beginning and 147.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2020-10-14 18:12:07,314 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 270.69 ms. Allocated memory is still 147.8 MB. Free memory was 103.8 MB in the beginning and 93.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 169.27 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 93.4 MB in the beginning and 181.4 MB in the end (delta: -88.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 402.28 ms. Allocated memory is still 203.9 MB. Free memory was 181.4 MB in the beginning and 163.5 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 409.20 ms. Allocated memory is still 203.9 MB. Free memory was 163.5 MB in the beginning and 147.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. 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 TRUE !cond [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long *a = malloc(sizeof(long long)*N); [L28] i=0 [L28] COND FALSE !(i