/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/loops-crafted-1/vnew2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 00:07:36,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 00:07:36,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 00:07:36,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 00:07:36,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 00:07:36,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 00:07:36,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 00:07:36,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 00:07:36,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 00:07:36,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 00:07:36,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 00:07:36,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 00:07:36,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 00:07:36,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 00:07:36,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 00:07:36,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 00:07:36,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 00:07:36,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 00:07:36,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 00:07:36,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 00:07:36,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 00:07:36,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 00:07:36,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 00:07:36,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 00:07:36,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 00:07:36,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 00:07:36,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 00:07:36,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 00:07:36,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 00:07:36,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 00:07:36,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 00:07:36,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 00:07:36,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 00:07:36,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 00:07:36,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 00:07:36,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 00:07:36,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 00:07:36,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 00:07:36,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 00:07:36,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 00:07:36,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 00:07:36,441 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 [2020-10-15 00:07:36,464 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 00:07:36,464 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 00:07:36,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 00:07:36,466 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 00:07:36,466 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 00:07:36,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 00:07:36,466 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 00:07:36,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 00:07:36,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 00:07:36,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 00:07:36,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 00:07:36,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 00:07:36,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 00:07:36,467 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 00:07:36,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 00:07:36,468 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 00:07:36,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 00:07:36,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 00:07:36,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 00:07:36,469 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 00:07:36,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 00:07:36,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 00:07:36,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 00:07:36,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 00:07:36,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 00:07:36,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 00:07:36,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 00:07:36,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 00:07:36,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 00:07:36,471 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; [2020-10-15 00:07:36,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 00:07:36,772 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 00:07:36,775 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 00:07:36,776 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 00:07:36,777 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 00:07:36,778 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/vnew2.c [2020-10-15 00:07:36,836 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07926a0e7/3fc5bd9b70d04ad6a7d76643ab7b12d3/FLAGd15260a50 [2020-10-15 00:07:37,248 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 00:07:37,248 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/vnew2.c [2020-10-15 00:07:37,254 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07926a0e7/3fc5bd9b70d04ad6a7d76643ab7b12d3/FLAGd15260a50 [2020-10-15 00:07:37,615 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07926a0e7/3fc5bd9b70d04ad6a7d76643ab7b12d3 [2020-10-15 00:07:37,624 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 00:07:37,627 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 00:07:37,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 00:07:37,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 00:07:37,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 00:07:37,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:07:37" (1/1) ... [2020-10-15 00:07:37,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f1c8c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:37, skipping insertion in model container [2020-10-15 00:07:37,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:07:37" (1/1) ... [2020-10-15 00:07:37,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 00:07:37,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 00:07:37,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 00:07:37,838 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 00:07:37,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 00:07:37,869 INFO L208 MainTranslator]: Completed translation [2020-10-15 00:07:37,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:37 WrapperNode [2020-10-15 00:07:37,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 00:07:37,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 00:07:37,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 00:07:37,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 00:07:37,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:37" (1/1) ... [2020-10-15 00:07:37,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:37" (1/1) ... [2020-10-15 00:07:37,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:37" (1/1) ... [2020-10-15 00:07:37,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:37" (1/1) ... [2020-10-15 00:07:37,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:37" (1/1) ... [2020-10-15 00:07:37,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:37" (1/1) ... [2020-10-15 00:07:37,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:37" (1/1) ... [2020-10-15 00:07:37,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 00:07:37,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 00:07:37,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 00:07:37,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 00:07:37,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:37" (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 [2020-10-15 00:07:38,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 00:07:38,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 00:07:38,042 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 00:07:38,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-15 00:07:38,043 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 00:07:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 00:07:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 00:07:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 00:07:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-15 00:07:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 00:07:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 00:07:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 00:07:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 00:07:38,258 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 00:07:38,259 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 00:07:38,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:07:38 BoogieIcfgContainer [2020-10-15 00:07:38,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 00:07:38,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 00:07:38,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 00:07:38,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 00:07:38,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:07:37" (1/3) ... [2020-10-15 00:07:38,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681494e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:07:38, skipping insertion in model container [2020-10-15 00:07:38,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:07:37" (2/3) ... [2020-10-15 00:07:38,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681494e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:07:38, skipping insertion in model container [2020-10-15 00:07:38,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:07:38" (3/3) ... [2020-10-15 00:07:38,272 INFO L109 eAbstractionObserver]: Analyzing ICFG vnew2.c [2020-10-15 00:07:38,297 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 00:07:38,303 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 00:07:38,314 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 00:07:38,337 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 00:07:38,337 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 00:07:38,337 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 00:07:38,338 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 00:07:38,338 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 00:07:38,338 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 00:07:38,338 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 00:07:38,338 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 00:07:38,356 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-10-15 00:07:38,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 00:07:38,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 00:07:38,362 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 00:07:38,363 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 00:07:38,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 00:07:38,369 INFO L82 PathProgramCache]: Analyzing trace with hash -915705774, now seen corresponding path program 1 times [2020-10-15 00:07:38,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 00:07:38,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437684867] [2020-10-15 00:07:38,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 00:07:38,481 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-15 00:07:38,481 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-15 00:07:38,482 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 00:07:38,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 00:07:38,497 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-15 00:07:38,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:07:38 BoogieIcfgContainer [2020-10-15 00:07:38,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 00:07:38,501 INFO L168 Benchmark]: Toolchain (without parser) took 872.79 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 102.5 MB in the beginning and 156.3 MB in the end (delta: -53.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-10-15 00:07:38,502 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-15 00:07:38,503 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.86 ms. Allocated memory is still 146.3 MB. Free memory was 102.1 MB in the beginning and 92.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-10-15 00:07:38,505 INFO L168 Benchmark]: Boogie Preprocessor took 113.64 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 92.5 MB in the beginning and 181.2 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-10-15 00:07:38,506 INFO L168 Benchmark]: RCFGBuilder took 278.17 ms. Allocated memory is still 202.9 MB. Free memory was 181.2 MB in the beginning and 168.8 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-10-15 00:07:38,507 INFO L168 Benchmark]: TraceAbstraction took 231.90 ms. Allocated memory is still 202.9 MB. Free memory was 167.9 MB in the beginning and 156.3 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2020-10-15 00:07:38,513 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 146.3 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 239.86 ms. Allocated memory is still 146.3 MB. Free memory was 102.1 MB in the beginning and 92.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.64 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 92.5 MB in the beginning and 181.2 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 278.17 ms. Allocated memory is still 202.9 MB. Free memory was 181.2 MB in the beginning and 168.8 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 231.90 ms. Allocated memory is still 202.9 MB. Free memory was 167.9 MB in the beginning and 156.3 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: 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: [L12] int SIZE = 20000001; [L15] unsigned int n,i,k,j; [L16] n = __VERIFIER_nondet_int() [L17] COND FALSE !(!(n <= SIZE)) [L18] EXPR k = 0 [L18] EXPR j = k = 0 [L18] i = j = k = 0 [L19] COND FALSE !(i < n) [L24] COND TRUE n>0 [L25] CALL __VERIFIER_assert( i==j && j==k && (i%(SIZE+2)) ) [L7] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...