/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/float-benchs/zonotope_3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:45:14,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:45:14,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:45:14,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:45:14,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:45:14,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:45:14,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:45:14,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:45:14,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:45:14,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:45:14,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:45:14,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:45:14,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:45:14,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:45:14,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:45:14,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:45:14,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:45:14,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:45:14,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:45:14,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:45:14,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:45:14,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:45:14,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:45:14,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:45:14,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:45:14,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:45:14,417 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:45:14,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:45:14,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:45:14,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:45:14,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:45:14,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:45:14,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:45:14,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:45:14,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:45:14,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:45:14,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:45:14,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:45:14,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:45:14,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:45:14,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:45:14,426 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 04:45:14,449 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:45:14,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:45:14,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:45:14,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:45:14,454 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:45:14,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:45:14,455 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:45:14,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:45:14,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:45:14,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:45:14,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:45:14,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:45:14,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:45:14,459 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:45:14,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:45:14,460 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:45:14,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:45:14,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:45:14,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:45:14,461 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:45:14,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:45:14,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:45:14,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:45:14,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:45:14,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:45:14,462 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:45:14,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:45:14,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:45:14,462 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:45:14,463 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; [2020-10-14 04:45:14,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:45:14,830 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:45:14,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:45:14,839 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:45:14,839 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:45:14,840 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/zonotope_3.c [2020-10-14 04:45:14,920 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42508676d/2e3a85b3d9a24f02aa5ca3c1abbf053e/FLAG93c05fbb7 [2020-10-14 04:45:15,414 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:45:15,415 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-benchs/zonotope_3.c [2020-10-14 04:45:15,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42508676d/2e3a85b3d9a24f02aa5ca3c1abbf053e/FLAG93c05fbb7 [2020-10-14 04:45:15,759 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42508676d/2e3a85b3d9a24f02aa5ca3c1abbf053e [2020-10-14 04:45:15,769 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:45:15,772 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:45:15,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:45:15,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:45:15,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:45:15,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:45:15" (1/1) ... [2020-10-14 04:45:15,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dd6f99d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:15, skipping insertion in model container [2020-10-14 04:45:15,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:45:15" (1/1) ... [2020-10-14 04:45:15,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:45:15,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:45:16,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:45:16,008 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:45:16,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:45:16,056 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:45:16,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16 WrapperNode [2020-10-14 04:45:16,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:45:16,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:45:16,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:45:16,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:45:16,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16" (1/1) ... [2020-10-14 04:45:16,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16" (1/1) ... [2020-10-14 04:45:16,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16" (1/1) ... [2020-10-14 04:45:16,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16" (1/1) ... [2020-10-14 04:45:16,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16" (1/1) ... [2020-10-14 04:45:16,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16" (1/1) ... [2020-10-14 04:45:16,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16" (1/1) ... [2020-10-14 04:45:16,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:45:16,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:45:16,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:45:16,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:45:16,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16" (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 04:45:16,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:45:16,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:45:16,264 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 04:45:16,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 04:45:16,265 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-14 04:45:16,265 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-10-14 04:45:16,265 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:45:16,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:45:16,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-14 04:45:16,265 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 04:45:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 04:45:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 04:45:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-14 04:45:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-10-14 04:45:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:45:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:45:16,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:45:16,549 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:45:16,550 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 04:45:16,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:45:16 BoogieIcfgContainer [2020-10-14 04:45:16,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:45:16,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:45:16,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:45:16,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:45:16,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:45:15" (1/3) ... [2020-10-14 04:45:16,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bde8752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:45:16, skipping insertion in model container [2020-10-14 04:45:16,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16" (2/3) ... [2020-10-14 04:45:16,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bde8752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:45:16, skipping insertion in model container [2020-10-14 04:45:16,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:45:16" (3/3) ... [2020-10-14 04:45:16,564 INFO L109 eAbstractionObserver]: Analyzing ICFG zonotope_3.c [2020-10-14 04:45:16,575 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:45:16,583 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 04:45:16,601 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 04:45:16,638 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:45:16,639 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:45:16,639 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:45:16,639 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:45:16,639 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:45:16,640 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:45:16,640 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:45:16,640 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:45:16,663 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-10-14 04:45:16,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-14 04:45:16,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:16,672 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:16,672 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:16,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:16,679 INFO L82 PathProgramCache]: Analyzing trace with hash 2140746675, now seen corresponding path program 1 times [2020-10-14 04:45:16,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:16,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129953764] [2020-10-14 04:45:16,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:16,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:16,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:16,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 04:45:16,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:16,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 04:45:16,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:16,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:16,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:16,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-14 04:45:16,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:16,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:45:16,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:16,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:16,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:16,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 04:45:16,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:16,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:45:16,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:16,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:16,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:16,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:16,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:16,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:16,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:45:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:16,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:16,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:16,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:16,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:16,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:45:16,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:16,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:16,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:16,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:16,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:16,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:16,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 04:45:16,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:16,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:16,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:16,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:16,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:16,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:45:16,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:16,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:16,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:16,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:16,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:16,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:16,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 04:45:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:16,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:16,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:16,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:16,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:16,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:45:16,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:16,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:16,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:16,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:16,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:16,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:16,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 04:45:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:16,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:16,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:16,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:16,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:16,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 04:45:16,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:16,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:16,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:16,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:16,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:16,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:17,012 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 04:45:17,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129953764] [2020-10-14 04:45:17,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:45:17,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-14 04:45:17,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094584358] [2020-10-14 04:45:17,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-14 04:45:17,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:17,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-14 04:45:17,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-14 04:45:17,036 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2020-10-14 04:45:17,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:17,069 INFO L93 Difference]: Finished difference Result 81 states and 97 transitions. [2020-10-14 04:45:17,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-14 04:45:17,071 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 31 [2020-10-14 04:45:17,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:17,082 INFO L225 Difference]: With dead ends: 81 [2020-10-14 04:45:17,083 INFO L226 Difference]: Without dead ends: 40 [2020-10-14 04:45:17,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-14 04:45:17,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-14 04:45:17,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-14 04:45:17,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-14 04:45:17,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2020-10-14 04:45:17,145 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 31 [2020-10-14 04:45:17,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:17,147 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2020-10-14 04:45:17,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-14 04:45:17,147 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2020-10-14 04:45:17,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-14 04:45:17,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:17,150 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:17,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:45:17,151 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:17,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:17,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1711309410, now seen corresponding path program 1 times [2020-10-14 04:45:17,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:17,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351034027] [2020-10-14 04:45:17,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:17,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:17,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:17,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 04:45:17,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:17,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 04:45:17,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:17,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:17,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:45:17,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-14 04:45:17,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:45:17,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:17,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:17,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:17,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:17,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 04:45:17,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:17,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:45:17,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:17,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:17,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:17,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:17,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:17,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:17,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:45:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:17,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:17,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:17,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:17,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:17,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:45:17,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:17,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:17,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:17,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:17,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:17,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:17,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 04:45:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:17,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:17,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:17,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:17,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:17,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:45:17,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:17,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:17,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:17,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:17,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:17,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:17,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 04:45:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:17,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:17,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:17,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:17,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:17,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:45:17,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:17,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:17,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:17,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 04:45:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:17,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:17,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:17,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:17,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:17,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 04:45:17,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:17,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:17,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:17,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:17,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:17,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:17,439 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 04:45:17,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351034027] [2020-10-14 04:45:17,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:45:17,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 04:45:17,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280673564] [2020-10-14 04:45:17,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 04:45:17,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:17,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 04:45:17,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 04:45:17,446 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 3 states. [2020-10-14 04:45:17,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:17,476 INFO L93 Difference]: Finished difference Result 57 states and 68 transitions. [2020-10-14 04:45:17,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 04:45:17,477 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-10-14 04:45:17,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:17,479 INFO L225 Difference]: With dead ends: 57 [2020-10-14 04:45:17,479 INFO L226 Difference]: Without dead ends: 51 [2020-10-14 04:45:17,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 04:45:17,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-14 04:45:17,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 41. [2020-10-14 04:45:17,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-14 04:45:17,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2020-10-14 04:45:17,494 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 31 [2020-10-14 04:45:17,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:17,494 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2020-10-14 04:45:17,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 04:45:17,495 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2020-10-14 04:45:17,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-14 04:45:17,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:17,497 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:17,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:45:17,498 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:17,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:17,498 INFO L82 PathProgramCache]: Analyzing trace with hash -612347458, now seen corresponding path program 1 times [2020-10-14 04:45:17,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:17,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119699346] [2020-10-14 04:45:17,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:17,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:17,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:17,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 04:45:17,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:17,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 04:45:17,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:17,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:17,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:45:17,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-14 04:45:17,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 04:45:17,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:17,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:17,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:17,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:17,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 04:45:17,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:17,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:17,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:17,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:17,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:17,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:17,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:17,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:17,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 04:45:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:17,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:17,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:17,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:17,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:17,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:17,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:17,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:17,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:17,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:17,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:17,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:17,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 04:45:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:17,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:17,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:17,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:17,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:17,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:17,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:17,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:17,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:17,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:17,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:17,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:17,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 04:45:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:17,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:17,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:17,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:17,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:17,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:17,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:17,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:17,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:17,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:17,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:17,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:17,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 04:45:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:17,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:17,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:17,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:17,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:17,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:17,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:17,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:17,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:17,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:17,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:17,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:17,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 04:45:17,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 04:45:17,708 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:235) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:557) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertLocalVarAssignemntPendingContext(AnnotateAndAssertCodeBlocks.java:169) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:120) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:295) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:206) ... 30 more [2020-10-14 04:45:17,714 INFO L168 Benchmark]: Toolchain (without parser) took 1942.20 ms. Allocated memory was 146.8 MB in the beginning and 233.8 MB in the end (delta: 87.0 MB). Free memory was 102.9 MB in the beginning and 202.3 MB in the end (delta: -99.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-14 04:45:17,715 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-14 04:45:17,716 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.98 ms. Allocated memory is still 146.8 MB. Free memory was 102.7 MB in the beginning and 92.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-10-14 04:45:17,717 INFO L168 Benchmark]: Boogie Preprocessor took 134.09 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 92.7 MB in the beginning and 182.3 MB in the end (delta: -89.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-10-14 04:45:17,718 INFO L168 Benchmark]: RCFGBuilder took 363.25 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 166.7 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2020-10-14 04:45:17,719 INFO L168 Benchmark]: TraceAbstraction took 1155.17 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 166.1 MB in the beginning and 202.3 MB in the end (delta: -36.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-14 04:45:17,724 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 283.98 ms. Allocated memory is still 146.8 MB. Free memory was 102.7 MB in the beginning and 92.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.09 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 92.7 MB in the beginning and 182.3 MB in the end (delta: -89.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 363.25 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 166.7 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1155.17 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 166.1 MB in the beginning and 202.3 MB in the end (delta: -36.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:235) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...