/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-patterns/array20_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 18:24:41,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 18:24:41,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 18:24:41,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 18:24:41,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 18:24:41,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 18:24:41,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 18:24:41,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 18:24:41,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 18:24:41,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 18:24:41,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 18:24:41,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 18:24:41,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 18:24:41,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 18:24:41,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 18:24:41,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 18:24:41,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 18:24:41,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 18:24:41,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 18:24:41,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 18:24:41,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 18:24:41,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 18:24:41,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 18:24:41,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 18:24:41,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 18:24:41,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 18:24:41,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 18:24:41,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 18:24:41,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 18:24:41,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 18:24:41,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 18:24:41,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 18:24:41,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 18:24:41,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 18:24:41,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 18:24:41,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 18:24:41,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 18:24:41,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 18:24:41,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 18:24:41,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 18:24:41,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 18:24:41,370 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 18:24:41,393 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 18:24:41,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 18:24:41,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 18:24:41,395 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 18:24:41,395 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 18:24:41,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 18:24:41,395 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 18:24:41,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 18:24:41,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 18:24:41,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 18:24:41,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 18:24:41,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 18:24:41,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 18:24:41,397 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 18:24:41,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 18:24:41,397 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 18:24:41,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 18:24:41,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 18:24:41,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 18:24:41,398 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 18:24:41,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 18:24:41,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 18:24:41,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 18:24:41,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 18:24:41,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 18:24:41,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 18:24:41,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 18:24:41,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 18:24:41,399 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 18:24:41,400 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=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 18:24:41,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 18:24:41,713 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 18:24:41,717 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 18:24:41,718 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 18:24:41,719 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 18:24:41,719 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-patterns/array20_pattern.c [2020-10-14 18:24:41,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/893c5517c/43efb89791e74abeaf2874e2b2310682/FLAG6e3d38b62 [2020-10-14 18:24:42,275 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 18:24:42,275 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-patterns/array20_pattern.c [2020-10-14 18:24:42,283 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/893c5517c/43efb89791e74abeaf2874e2b2310682/FLAG6e3d38b62 [2020-10-14 18:24:42,650 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/893c5517c/43efb89791e74abeaf2874e2b2310682 [2020-10-14 18:24:42,659 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 18:24:42,661 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 18:24:42,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 18:24:42,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 18:24:42,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 18:24:42,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:24:42" (1/1) ... [2020-10-14 18:24:42,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70cb5a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:42, skipping insertion in model container [2020-10-14 18:24:42,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:24:42" (1/1) ... [2020-10-14 18:24:42,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 18:24:42,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 18:24:42,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:24:42,947 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 18:24:42,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:24:43,089 INFO L208 MainTranslator]: Completed translation [2020-10-14 18:24:43,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:43 WrapperNode [2020-10-14 18:24:43,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 18:24:43,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 18:24:43,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 18:24:43,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 18:24:43,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:43" (1/1) ... [2020-10-14 18:24:43,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:43" (1/1) ... [2020-10-14 18:24:43,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:43" (1/1) ... [2020-10-14 18:24:43,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:43" (1/1) ... [2020-10-14 18:24:43,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:43" (1/1) ... [2020-10-14 18:24:43,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:43" (1/1) ... [2020-10-14 18:24:43,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:43" (1/1) ... [2020-10-14 18:24:43,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 18:24:43,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 18:24:43,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 18:24:43,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 18:24:43,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:43" (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 18:24:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 18:24:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 18:24:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 18:24:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 18:24:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 18:24:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 18:24:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 18:24:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 18:24:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 18:24:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 18:24:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2020-10-14 18:24:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 18:24:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 18:24:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 18:24:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 18:24:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 18:24:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 18:24:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 18:24:43,557 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 18:24:43,557 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-14 18:24:43,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:24:43 BoogieIcfgContainer [2020-10-14 18:24:43,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 18:24:43,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 18:24:43,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 18:24:43,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 18:24:43,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 06:24:42" (1/3) ... [2020-10-14 18:24:43,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce3f267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:24:43, skipping insertion in model container [2020-10-14 18:24:43,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:24:43" (2/3) ... [2020-10-14 18:24:43,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce3f267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:24:43, skipping insertion in model container [2020-10-14 18:24:43,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:24:43" (3/3) ... [2020-10-14 18:24:43,574 INFO L109 eAbstractionObserver]: Analyzing ICFG array20_pattern.c [2020-10-14 18:24:43,587 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 18:24:43,596 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 18:24:43,612 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 18:24:43,647 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 18:24:43,647 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 18:24:43,647 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 18:24:43,647 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 18:24:43,648 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 18:24:43,648 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 18:24:43,648 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 18:24:43,648 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 18:24:43,672 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-10-14 18:24:43,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-14 18:24:43,679 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:24:43,681 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] [2020-10-14 18:24:43,681 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:24:43,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:24:43,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1606562274, now seen corresponding path program 1 times [2020-10-14 18:24:43,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:24:43,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2014525408] [2020-10-14 18:24:43,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:24:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:24:43,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:24:43,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2014525408] [2020-10-14 18:24:43,873 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2020-10-14 18:24:43,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-14 18:24:43,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-14 18:24:43,874 ERROR L206 FreeRefinementEngine]: Strategy FIXED_PREFERENCES failed to provide any proof altough trace is infeasible [2020-10-14 18:24:43,875 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 18:24:43,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 18:24:43,895 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-14 18:24:43,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:24:43 BoogieIcfgContainer [2020-10-14 18:24:43,896 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 18:24:43,899 INFO L168 Benchmark]: Toolchain (without parser) took 1236.91 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 103.9 MB in the beginning and 145.2 MB in the end (delta: -41.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. [2020-10-14 18:24:43,900 INFO L168 Benchmark]: CDTParser took 0.25 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: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 18:24:43,901 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.91 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 103.5 MB in the beginning and 182.8 MB in the end (delta: -79.3 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2020-10-14 18:24:43,902 INFO L168 Benchmark]: Boogie Preprocessor took 47.90 ms. Allocated memory is still 204.5 MB. Free memory was 182.8 MB in the beginning and 180.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-14 18:24:43,903 INFO L168 Benchmark]: RCFGBuilder took 423.26 ms. Allocated memory is still 204.5 MB. Free memory was 180.9 MB in the beginning and 160.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-10-14 18:24:43,904 INFO L168 Benchmark]: TraceAbstraction took 331.26 ms. Allocated memory is still 204.5 MB. Free memory was 159.4 MB in the beginning and 145.2 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-10-14 18:24:43,909 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 428.91 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 103.5 MB in the beginning and 182.8 MB in the end (delta: -79.3 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.90 ms. Allocated memory is still 204.5 MB. Free memory was 182.8 MB in the beginning and 180.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 423.26 ms. Allocated memory is still 204.5 MB. Free memory was 180.9 MB in the beginning and 160.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 331.26 ms. Allocated memory is still 204.5 MB. Free memory was 159.4 MB in the beginning and 145.2 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 32]: 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: [L36] signed long long ARR_SIZE ; [L40] ARR_SIZE = (signed long long)__VERIFIER_nondet_short() [L41] CALL assume_abort_if_not(ARR_SIZE > 0) [L30] COND TRUE !cond [L41] RET assume_abort_if_not(ARR_SIZE > 0) [L43] int array[ARR_SIZE][ARR_SIZE] ; [L45] int row = 0, column = 0, num = -1 ; [L46] signed long long sum = 0 ; [L47] int temp ; [L48] signed long long index1,index2 ; [L50] row=0 [L50] COND FALSE !(row