/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-cav19/array_tiling_poly6.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 23:10:41,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 23:10:41,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 23:10:41,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 23:10:41,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 23:10:41,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 23:10:41,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 23:10:41,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 23:10:41,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 23:10:41,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 23:10:41,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 23:10:41,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 23:10:41,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 23:10:41,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 23:10:41,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 23:10:41,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 23:10:41,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 23:10:41,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 23:10:41,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 23:10:41,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 23:10:41,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 23:10:41,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 23:10:41,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 23:10:41,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 23:10:41,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 23:10:41,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 23:10:41,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 23:10:41,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 23:10:41,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 23:10:41,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 23:10:41,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 23:10:41,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 23:10:41,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 23:10:41,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 23:10:41,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 23:10:41,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 23:10:41,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 23:10:41,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 23:10:41,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 23:10:41,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 23:10:41,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 23:10:41,380 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 23:10:41,402 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 23:10:41,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 23:10:41,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 23:10:41,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 23:10:41,404 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 23:10:41,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 23:10:41,404 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 23:10:41,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 23:10:41,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 23:10:41,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 23:10:41,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 23:10:41,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 23:10:41,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 23:10:41,406 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 23:10:41,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 23:10:41,406 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 23:10:41,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 23:10:41,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 23:10:41,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 23:10:41,407 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 23:10:41,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 23:10:41,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 23:10:41,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 23:10:41,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 23:10:41,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 23:10:41,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 23:10:41,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 23:10:41,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 23:10:41,409 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 23:10:41,409 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-13 23:10:41,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 23:10:41,726 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 23:10:41,729 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 23:10:41,731 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 23:10:41,731 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 23:10:41,732 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-cav19/array_tiling_poly6.c [2020-10-13 23:10:41,790 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed28adeb5/a96f17db56b84e2e86bfb62cc8e8b3cf/FLAGd4b9bab06 [2020-10-13 23:10:42,188 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 23:10:42,190 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-cav19/array_tiling_poly6.c [2020-10-13 23:10:42,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed28adeb5/a96f17db56b84e2e86bfb62cc8e8b3cf/FLAGd4b9bab06 [2020-10-13 23:10:42,559 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed28adeb5/a96f17db56b84e2e86bfb62cc8e8b3cf [2020-10-13 23:10:42,570 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 23:10:42,573 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 23:10:42,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 23:10:42,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 23:10:42,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 23:10:42,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:10:42" (1/1) ... [2020-10-13 23:10:42,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c343274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42, skipping insertion in model container [2020-10-13 23:10:42,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:10:42" (1/1) ... [2020-10-13 23:10:42,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 23:10:42,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 23:10:42,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:10:42,809 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 23:10:42,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:10:42,850 INFO L208 MainTranslator]: Completed translation [2020-10-13 23:10:42,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42 WrapperNode [2020-10-13 23:10:42,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 23:10:42,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 23:10:42,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 23:10:42,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 23:10:42,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42" (1/1) ... [2020-10-13 23:10:42,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42" (1/1) ... [2020-10-13 23:10:42,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42" (1/1) ... [2020-10-13 23:10:42,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42" (1/1) ... [2020-10-13 23:10:42,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42" (1/1) ... [2020-10-13 23:10:42,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42" (1/1) ... [2020-10-13 23:10:43,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42" (1/1) ... [2020-10-13 23:10:43,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 23:10:43,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 23:10:43,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 23:10:43,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 23:10:43,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 23:10:43,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 23:10:43,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 23:10:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 23:10:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-13 23:10:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 23:10:43,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 23:10:43,081 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 23:10:43,083 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 23:10:43,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 23:10:43,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 23:10:43,083 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 23:10:43,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 23:10:43,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 23:10:43,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 23:10:43,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 23:10:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 23:10:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 23:10:43,324 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 23:10:43,324 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-13 23:10:43,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:10:43 BoogieIcfgContainer [2020-10-13 23:10:43,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 23:10:43,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 23:10:43,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 23:10:43,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 23:10:43,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:10:42" (1/3) ... [2020-10-13 23:10:43,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74644e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:10:43, skipping insertion in model container [2020-10-13 23:10:43,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:42" (2/3) ... [2020-10-13 23:10:43,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74644e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:10:43, skipping insertion in model container [2020-10-13 23:10:43,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:10:43" (3/3) ... [2020-10-13 23:10:43,339 INFO L109 eAbstractionObserver]: Analyzing ICFG array_tiling_poly6.c [2020-10-13 23:10:43,351 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 23:10:43,359 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 23:10:43,375 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 23:10:43,404 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 23:10:43,404 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 23:10:43,405 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 23:10:43,405 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 23:10:43,405 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 23:10:43,405 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 23:10:43,405 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 23:10:43,405 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 23:10:43,425 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-13 23:10:43,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-13 23:10:43,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:10:43,433 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] [2020-10-13 23:10:43,434 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:10:43,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:10:43,440 INFO L82 PathProgramCache]: Analyzing trace with hash 674866801, now seen corresponding path program 1 times [2020-10-13 23:10:43,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:10:43,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096196625] [2020-10-13 23:10:43,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:10:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:43,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:43,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:43,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:44,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:44,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 23:10:44,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:10:44,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 613 [2020-10-13 23:10:44,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:44,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:44,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:10:44,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 23:10:44,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:10:44,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 23:10:44,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:10:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:44,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:44,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:44,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:10:44,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:10:44,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:10:44,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:44,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:44,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:10:44,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:10:44,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:10:44,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 23:10:44,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:10:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:44,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:44,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:44,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:10:44,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:10:44,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:10:44,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:44,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:44,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:10:44,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 23:10:44,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:10:44,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:44,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 23:10:44,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096196625] [2020-10-13 23:10:44,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:10:44,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 23:10:44,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348652241] [2020-10-13 23:10:44,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 23:10:44,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:10:44,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 23:10:44,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 23:10:44,283 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2020-10-13 23:10:44,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:10:44,371 INFO L93 Difference]: Finished difference Result 57 states and 71 transitions. [2020-10-13 23:10:44,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 23:10:44,373 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-10-13 23:10:44,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:10:44,381 INFO L225 Difference]: With dead ends: 57 [2020-10-13 23:10:44,382 INFO L226 Difference]: Without dead ends: 28 [2020-10-13 23:10:44,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 23:10:44,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-13 23:10:44,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-13 23:10:44,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-13 23:10:44,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2020-10-13 23:10:44,436 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 21 [2020-10-13 23:10:44,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:10:44,436 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2020-10-13 23:10:44,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 23:10:44,437 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-10-13 23:10:44,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-13 23:10:44,437 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:10:44,438 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] [2020-10-13 23:10:44,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 23:10:44,438 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:10:44,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:10:44,439 INFO L82 PathProgramCache]: Analyzing trace with hash 88060787, now seen corresponding path program 1 times [2020-10-13 23:10:44,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:10:44,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85227569] [2020-10-13 23:10:44,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:10:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:44,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:44,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:44,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:44,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:44,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:44,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 23:10:44,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 23:10:44,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 389 [2020-10-13 23:10:44,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:44,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:44,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 23:10:44,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:10:44,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 23:10:44,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:44,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:10:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:44,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:44,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:44,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:10:44,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:10:44,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:10:44,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:44,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:44,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:10:44,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:10:44,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:10:44,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:44,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:10:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:10:44,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:10:44,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:10:44,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:10:44,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:10:44,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:10:44,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:10:44,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:10:44,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 23:10:44,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:10:44,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 23:10:44,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:10:44,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 23:10:44,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85227569] [2020-10-13 23:10:44,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:10:44,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 23:10:44,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847123134] [2020-10-13 23:10:44,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 23:10:44,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:10:44,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 23:10:44,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 23:10:44,937 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 7 states. [2020-10-13 23:10:45,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:10:45,099 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2020-10-13 23:10:45,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 23:10:45,099 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-10-13 23:10:45,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:10:45,102 INFO L225 Difference]: With dead ends: 50 [2020-10-13 23:10:45,102 INFO L226 Difference]: Without dead ends: 36 [2020-10-13 23:10:45,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-13 23:10:45,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-13 23:10:45,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2020-10-13 23:10:45,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-13 23:10:45,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2020-10-13 23:10:45,116 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 21 [2020-10-13 23:10:45,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:10:45,116 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2020-10-13 23:10:45,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 23:10:45,117 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-10-13 23:10:45,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-13 23:10:45,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:10:45,118 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] [2020-10-13 23:10:45,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 23:10:45,118 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:10:45,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:10:45,119 INFO L82 PathProgramCache]: Analyzing trace with hash -112618769, now seen corresponding path program 1 times [2020-10-13 23:10:45,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:10:45,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825600424] [2020-10-13 23:10:45,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:10:45,128 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-13 23:10:45,128 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-13 23:10:45,129 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 23:10:45,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 23:10:45,148 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-13 23:10:45,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 11:10:45 BoogieIcfgContainer [2020-10-13 23:10:45,149 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 23:10:45,151 INFO L168 Benchmark]: Toolchain (without parser) took 2578.04 ms. Allocated memory was 146.8 MB in the beginning and 234.4 MB in the end (delta: 87.6 MB). Free memory was 103.1 MB in the beginning and 120.3 MB in the end (delta: -17.2 MB). Peak memory consumption was 70.3 MB. Max. memory is 7.1 GB. [2020-10-13 23:10:45,152 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 23:10:45,153 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.01 ms. Allocated memory is still 146.8 MB. Free memory was 102.8 MB in the beginning and 92.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-10-13 23:10:45,154 INFO L168 Benchmark]: Boogie Preprocessor took 152.45 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 92.6 MB in the beginning and 180.2 MB in the end (delta: -87.5 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-10-13 23:10:45,155 INFO L168 Benchmark]: RCFGBuilder took 324.93 ms. Allocated memory is still 202.9 MB. Free memory was 180.2 MB in the beginning and 164.7 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2020-10-13 23:10:45,156 INFO L168 Benchmark]: TraceAbstraction took 1817.91 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 164.1 MB in the beginning and 120.3 MB in the end (delta: 43.8 MB). Peak memory consumption was 75.3 MB. Max. memory is 7.1 GB. [2020-10-13 23:10:45,160 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 277.01 ms. Allocated memory is still 146.8 MB. Free memory was 102.8 MB in the beginning and 92.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 152.45 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 92.6 MB in the beginning and 180.2 MB in the end (delta: -87.5 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 324.93 ms. Allocated memory is still 202.9 MB. Free memory was 180.2 MB in the beginning and 164.7 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1817.91 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 164.1 MB in the beginning and 120.3 MB in the end (delta: 43.8 MB). Peak memory consumption was 75.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: 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: [L10] int S=__VERIFIER_nondet_int(); [L11] CALL assume_abort_if_not(S>1) [L4] COND FALSE !(!cond) [L11] RET assume_abort_if_not(S>1) [L12] int i; [L13] int a[S]; [L15] i=0 [L15] COND TRUE i