/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 SingleStatement --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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test_while_int.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:32:05,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:32:05,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:32:05,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:32:05,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:32:05,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:32:05,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:32:05,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:32:05,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:32:05,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:32:05,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:32:05,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:32:05,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:32:05,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:32:05,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:32:05,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:32:05,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:32:05,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:32:05,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:32:05,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:32:05,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:32:05,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:32:05,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:32:05,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:32:05,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:32:05,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:32:05,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:32:05,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:32:05,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:32:05,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:32:05,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:32:05,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:32:05,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:32:05,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:32:05,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:32:05,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:32:05,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:32:05,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:32:05,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:32:05,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:32:05,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:32:05,931 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 [2020-09-25 05:32:05,989 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:32:05,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:32:05,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:32:05,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:32:05,992 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:32:05,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:32:05,993 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:32:05,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:32:05,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:32:05,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:32:05,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:32:05,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:32:05,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:32:05,995 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:32:05,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:32:05,996 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:32:05,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:32:05,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:32:05,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:32:05,996 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:32:05,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:32:05,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:32:05,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:32:05,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:32:05,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:32:05,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:32:05,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:32:05,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:32:05,999 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:32:05,999 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 -> SingleStatement 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; 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; 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; 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; 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; 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; [2020-09-25 05:32:06,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:32:06,530 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:32:06,537 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:32:06,539 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:32:06,540 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:32:06,541 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_while_int.i [2020-09-25 05:32:06,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49c6b31d5/8a022bb92c3648f797697f1104837341/FLAG399f915b4 [2020-09-25 05:32:07,163 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:32:07,164 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test_while_int.i [2020-09-25 05:32:07,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49c6b31d5/8a022bb92c3648f797697f1104837341/FLAG399f915b4 [2020-09-25 05:32:07,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49c6b31d5/8a022bb92c3648f797697f1104837341 [2020-09-25 05:32:07,540 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:32:07,547 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:32:07,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:32:07,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:32:07,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:32:07,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:32:07" (1/1) ... [2020-09-25 05:32:07,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e852e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07, skipping insertion in model container [2020-09-25 05:32:07,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:32:07" (1/1) ... [2020-09-25 05:32:07,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:32:07,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:32:07,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:32:07,815 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:32:07,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:32:07,854 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:32:07,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07 WrapperNode [2020-09-25 05:32:07,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:32:07,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:32:07,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:32:07,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:32:07,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07" (1/1) ... [2020-09-25 05:32:07,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07" (1/1) ... [2020-09-25 05:32:07,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07" (1/1) ... [2020-09-25 05:32:07,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07" (1/1) ... [2020-09-25 05:32:07,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07" (1/1) ... [2020-09-25 05:32:07,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07" (1/1) ... [2020-09-25 05:32:07,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07" (1/1) ... [2020-09-25 05:32:07,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:32:07,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:32:07,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:32:07,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:32:07,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07" (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 [2020-09-25 05:32:08,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:32:08,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:32:08,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 05:32:08,053 INFO L138 BoogieDeclarations]: Found implementation of procedure check_error [2020-09-25 05:32:08,053 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:32:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:32:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 05:32:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure check_error [2020-09-25 05:32:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:32:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:32:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:32:08,242 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:32:08,242 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 05:32:08,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:32:08 BoogieIcfgContainer [2020-09-25 05:32:08,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:32:08,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:32:08,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:32:08,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:32:08,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:32:07" (1/3) ... [2020-09-25 05:32:08,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76333bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:32:08, skipping insertion in model container [2020-09-25 05:32:08,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:07" (2/3) ... [2020-09-25 05:32:08,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76333bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:32:08, skipping insertion in model container [2020-09-25 05:32:08,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:32:08" (3/3) ... [2020-09-25 05:32:08,257 INFO L109 eAbstractionObserver]: Analyzing ICFG test_while_int.i [2020-09-25 05:32:08,269 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:32:08,279 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:32:08,319 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:32:08,383 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:32:08,383 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:32:08,384 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:32:08,384 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:32:08,384 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:32:08,384 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:32:08,384 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:32:08,385 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:32:08,411 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-25 05:32:08,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-25 05:32:08,419 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:08,420 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:08,421 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:08,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:08,429 INFO L82 PathProgramCache]: Analyzing trace with hash -459927168, now seen corresponding path program 1 times [2020-09-25 05:32:08,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:08,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [780251530] [2020-09-25 05:32:08,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:08,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:08,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:08,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:32:08,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:08,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 05:32:08,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:08,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:08,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:32:08,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:32:08,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 05:32:08,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:32:08,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:08,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:08,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:08,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:32:08,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:08,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:32:08,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:08,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:08,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:08,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:08,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:08,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:08,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [780251530] [2020-09-25 05:32:08,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:08,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 05:32:08,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877912738] [2020-09-25 05:32:08,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:32:08,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:08,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:32:08,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:32:08,851 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 7 states. [2020-09-25 05:32:09,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:09,002 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2020-09-25 05:32:09,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 05:32:09,004 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-09-25 05:32:09,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:09,015 INFO L225 Difference]: With dead ends: 53 [2020-09-25 05:32:09,015 INFO L226 Difference]: Without dead ends: 29 [2020-09-25 05:32:09,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:32:09,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-09-25 05:32:09,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2020-09-25 05:32:09,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-25 05:32:09,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2020-09-25 05:32:09,066 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 14 [2020-09-25 05:32:09,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:09,067 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2020-09-25 05:32:09,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:32:09,068 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2020-09-25 05:32:09,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 05:32:09,069 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:09,069 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:09,069 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:32:09,070 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:09,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:09,070 INFO L82 PathProgramCache]: Analyzing trace with hash 299235803, now seen corresponding path program 1 times [2020-09-25 05:32:09,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:09,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1861022810] [2020-09-25 05:32:09,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:09,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:09,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:09,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 05:32:09,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:09,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-09-25 05:32:09,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:09,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:09,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:32:09,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:32:09,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 05:32:09,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:09,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:09,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:09,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:09,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:32:09,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:09,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:32:09,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:09,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:09,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:09,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:09,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:09,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:09,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 05:32:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:09,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:09,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:09,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:32:09,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:09,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:32:09,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:09,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:09,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:09,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:09,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:32:09,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:09,524 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:09,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1861022810] [2020-09-25 05:32:09,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:32:09,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 05:32:09,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871448364] [2020-09-25 05:32:09,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:32:09,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:09,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:32:09,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:32:09,530 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 9 states. [2020-09-25 05:32:09,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:09,696 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2020-09-25 05:32:09,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:32:09,697 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-09-25 05:32:09,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:09,699 INFO L225 Difference]: With dead ends: 41 [2020-09-25 05:32:09,699 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 05:32:09,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-09-25 05:32:09,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 05:32:09,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2020-09-25 05:32:09,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-25 05:32:09,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2020-09-25 05:32:09,710 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 23 [2020-09-25 05:32:09,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:09,711 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2020-09-25 05:32:09,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:32:09,711 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2020-09-25 05:32:09,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 05:32:09,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:09,713 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:09,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:32:09,714 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:09,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:09,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1072281632, now seen corresponding path program 2 times [2020-09-25 05:32:09,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:09,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1974210820] [2020-09-25 05:32:09,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 05:32:09,731 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 05:32:09,731 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 05:32:09,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:32:09,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:32:09 BoogieIcfgContainer [2020-09-25 05:32:09,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:32:09,760 INFO L168 Benchmark]: Toolchain (without parser) took 2215.92 ms. Allocated memory was 139.5 MB in the beginning and 200.8 MB in the end (delta: 61.3 MB). Free memory was 103.1 MB in the beginning and 89.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 75.3 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:09,761 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 05:32:09,762 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.28 ms. Allocated memory is still 139.5 MB. Free memory was 102.5 MB in the beginning and 93.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:09,763 INFO L168 Benchmark]: Boogie Preprocessor took 119.51 ms. Allocated memory was 139.5 MB in the beginning and 200.8 MB in the end (delta: 61.3 MB). Free memory was 93.2 MB in the beginning and 180.8 MB in the end (delta: -87.6 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:09,764 INFO L168 Benchmark]: RCFGBuilder took 271.57 ms. Allocated memory is still 200.8 MB. Free memory was 180.8 MB in the beginning and 168.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:09,765 INFO L168 Benchmark]: TraceAbstraction took 1507.42 ms. Allocated memory is still 200.8 MB. Free memory was 168.0 MB in the beginning and 89.1 MB in the end (delta: 78.9 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. [2020-09-25 05:32:09,770 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 307.28 ms. Allocated memory is still 139.5 MB. Free memory was 102.5 MB in the beginning and 93.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.51 ms. Allocated memory was 139.5 MB in the beginning and 200.8 MB in the end (delta: 61.3 MB). Free memory was 93.2 MB in the beginning and 180.8 MB in the end (delta: -87.6 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 271.57 ms. Allocated memory is still 200.8 MB. Free memory was 180.8 MB in the beginning and 168.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1507.42 ms. Allocated memory is still 200.8 MB. Free memory was 168.0 MB in the beginning and 89.1 MB in the end (delta: 78.9 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L23] int i=0; [L24] COND TRUE i<5 [L25] i++ [L29] CALL check_error(i!=3) [L18] (b) ? (0) : __blast_assert () [L29] RET check_error(i!=3) [L24] COND TRUE i<5 [L25] i++ [L29] CALL check_error(i!=3) [L18] (b) ? (0) : __blast_assert () [L29] RET check_error(i!=3) [L24] COND TRUE i<5 [L25] i++ [L29] CALL check_error(i!=3) [L18] (b) ? (0) : __blast_assert () [L18] CALL __blast_assert () [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 23 SDslu, 112 SDs, 0 SdLazy, 82 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 1363 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 2/7 InterpolantCoveringCapability, 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 proved your program to be incorrect! Received shutdown request...