./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/psyco/psyco_abp_1-2.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/psyco/psyco_abp_1-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db04337184e0dc3c9bdb3df980bb74c5f2415f6e ............................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: null --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 01:25:26,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:25:26,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:25:26,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:25:26,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:25:26,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:25:26,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:25:26,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:25:26,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:25:26,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:25:26,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:25:26,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:25:26,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:25:26,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:25:26,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:25:26,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:25:26,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:25:26,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:25:26,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:25:26,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:25:26,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:25:26,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:25:26,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:25:26,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:25:26,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:25:26,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:25:26,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:25:26,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:25:26,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:25:26,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:25:26,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:25:26,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:25:26,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:25:26,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:25:26,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:25:26,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:25:26,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:25:26,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:25:26,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:25:26,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:25:26,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:25:26,824 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-07-29 01:25:26,839 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:25:26,839 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:25:26,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:25:26,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:25:26,841 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:25:26,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:25:26,841 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 01:25:26,841 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:25:26,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:25:26,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 01:25:26,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:25:26,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-29 01:25:26,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-29 01:25:26,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-29 01:25:26,843 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-07-29 01:25:26,843 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 01:25:26,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:25:26,843 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:25:26,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-29 01:25:26,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:25:26,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:25:26,844 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-29 01:25:26,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-29 01:25:26,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-29 01:25:26,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:25:26,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-29 01:25:26,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-29 01:25:26,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:25:26,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-29 01:25:26,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-29 01:25:26,846 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:25:26,846 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db04337184e0dc3c9bdb3df980bb74c5f2415f6e [2020-07-29 01:25:27,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:25:27,148 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:25:27,151 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:25:27,153 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:25:27,153 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:25:27,154 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_abp_1-2.c [2020-07-29 01:25:27,218 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14bc850d8/ebc43bfa2c0344cfa0231459abf15556/FLAG9e229e412 [2020-07-29 01:25:27,677 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:25:27,678 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_abp_1-2.c [2020-07-29 01:25:27,691 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14bc850d8/ebc43bfa2c0344cfa0231459abf15556/FLAG9e229e412 [2020-07-29 01:25:27,971 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14bc850d8/ebc43bfa2c0344cfa0231459abf15556 [2020-07-29 01:25:27,975 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:25:27,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:25:27,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:25:27,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:25:27,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:25:27,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:25:27" (1/1) ... [2020-07-29 01:25:27,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2467ca25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:27, skipping insertion in model container [2020-07-29 01:25:27,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:25:27" (1/1) ... [2020-07-29 01:25:27,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:25:28,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:25:28,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:25:28,346 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:25:28,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:25:28,578 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:25:28,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:28 WrapperNode [2020-07-29 01:25:28,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:25:28,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:25:28,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:25:28,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:25:28,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:28" (1/1) ... [2020-07-29 01:25:28,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:28" (1/1) ... [2020-07-29 01:25:28,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:25:28,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:25:28,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:25:28,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:25:28,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:28" (1/1) ... [2020-07-29 01:25:28,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:28" (1/1) ... [2020-07-29 01:25:28,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:28" (1/1) ... [2020-07-29 01:25:28,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:28" (1/1) ... [2020-07-29 01:25:28,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:28" (1/1) ... [2020-07-29 01:25:28,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:28" (1/1) ... [2020-07-29 01:25:28,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:28" (1/1) ... [2020-07-29 01:25:28,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:25:28,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:25:28,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:25:28,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:25:28,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-29 01:25:28,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:25:28,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:25:30,832 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:25:30,834 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-29 01:25:30,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:25:30 BoogieIcfgContainer [2020-07-29 01:25:30,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:25:30,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-29 01:25:30,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-29 01:25:30,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-29 01:25:30,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.07 01:25:27" (1/3) ... [2020-07-29 01:25:30,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7125175c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:25:30, skipping insertion in model container [2020-07-29 01:25:30,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:28" (2/3) ... [2020-07-29 01:25:30,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7125175c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:25:30, skipping insertion in model container [2020-07-29 01:25:30,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:25:30" (3/3) ... [2020-07-29 01:25:30,864 INFO L109 eAbstractionObserver]: Analyzing ICFG psyco_abp_1-2.c [2020-07-29 01:25:30,876 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-29 01:25:30,887 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 42 error locations. [2020-07-29 01:25:30,904 INFO L251 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2020-07-29 01:25:30,945 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-29 01:25:30,946 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-29 01:25:30,946 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-29 01:25:30,946 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:25:30,947 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:25:30,947 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-29 01:25:30,947 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:25:30,948 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-29 01:25:30,983 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states. [2020-07-29 01:25:30,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-29 01:25:30,994 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:25:30,995 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 01:25:30,996 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:25:31,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:25:31,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1422697969, now seen corresponding path program 1 times [2020-07-29 01:25:31,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:25:31,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28211422] [2020-07-29 01:25:31,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:25:31,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:25:31,243 INFO L280 TraceCheckUtils]: 0: Hoare triple {197#true} ~m_Protocol~0 := 1;~m_msg_2~0 := 2;~m_recv_ack_2~0 := 3;~m_msg_1_1~0 := 4;~m_msg_1_2~0 := 5;~m_recv_ack_1_1~0 := 6;~m_recv_ack_1_2~0 := 7; {197#true} is VALID [2020-07-29 01:25:31,245 INFO L280 TraceCheckUtils]: 1: Hoare triple {197#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~short24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~short41, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~q~0, main_~method_id~0, main_~this_expect~0, main_~this_buffer_empty~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_expect~0 := 0;main_~this_buffer_empty~0 := 0; {199#(= 0 ULTIMATE.start_main_~q~0)} is VALID [2020-07-29 01:25:31,246 INFO L280 TraceCheckUtils]: 2: Hoare triple {199#(= 0 ULTIMATE.start_main_~q~0)} goto; {199#(= 0 ULTIMATE.start_main_~q~0)} is VALID [2020-07-29 01:25:31,248 INFO L280 TraceCheckUtils]: 3: Hoare triple {199#(= 0 ULTIMATE.start_main_~q~0)} assume !false;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;main_~P1~0 := main_#t~nondet0;havoc main_#t~nondet0;assume -2147483648 <= main_#t~nondet1 && main_#t~nondet1 <= 2147483647;main_~P2~0 := main_#t~nondet1;havoc main_#t~nondet1;assume -2147483648 <= main_#t~nondet2 && main_#t~nondet2 <= 2147483647;main_~P3~0 := main_#t~nondet2;havoc main_#t~nondet2;assume -2147483648 <= main_#t~nondet3 && main_#t~nondet3 <= 2147483647;main_~P4~0 := main_#t~nondet3;havoc main_#t~nondet3;assume -2147483648 <= main_#t~nondet4 && main_#t~nondet4 <= 2147483647;main_~P5~0 := main_#t~nondet4;havoc main_#t~nondet4;assume -2147483648 <= main_#t~nondet5 && main_#t~nondet5 <= 2147483647;main_~P6~0 := main_#t~nondet5;havoc main_#t~nondet5;assume -2147483648 <= main_#t~nondet6 && main_#t~nondet6 <= 2147483647;main_~P7~0 := main_#t~nondet6;havoc main_#t~nondet6;assume -2147483648 <= main_#t~nondet7 && main_#t~nondet7 <= 2147483647;main_~P8~0 := main_#t~nondet7;havoc main_#t~nondet7;assume -2147483648 <= main_#t~nondet8 && main_#t~nondet8 <= 2147483647;main_~P9~0 := main_#t~nondet8;havoc main_#t~nondet8; {199#(= 0 ULTIMATE.start_main_~q~0)} is VALID [2020-07-29 01:25:31,249 INFO L280 TraceCheckUtils]: 4: Hoare triple {199#(= 0 ULTIMATE.start_main_~q~0)} assume !(0 == main_~q~0); {198#false} is VALID [2020-07-29 01:25:31,250 INFO L280 TraceCheckUtils]: 5: Hoare triple {198#false} assume 1 == main_~q~0;assume -2147483648 <= main_#t~nondet10 && main_#t~nondet10 <= 2147483647; {198#false} is VALID [2020-07-29 01:25:31,251 INFO L280 TraceCheckUtils]: 6: Hoare triple {198#false} assume 0 != main_#t~nondet10;havoc main_#t~nondet10; {198#false} is VALID [2020-07-29 01:25:31,251 INFO L280 TraceCheckUtils]: 7: Hoare triple {198#false} assume !(0 != (if main_~P1~0 < 0 && 0 != main_~P1~0 % 2 then main_~P1~0 % 2 - 2 else main_~P1~0 % 2));main_~method_id~0 := 2; {198#false} is VALID [2020-07-29 01:25:31,252 INFO L280 TraceCheckUtils]: 8: Hoare triple {198#false} assume !((((if main_~P1~0 < 0 && 0 != main_~P1~0 % 2 then main_~P1~0 % 2 - 2 else main_~P1~0 % 2) != (if main_~this_expect~0 < 0 && 0 != main_~this_expect~0 % 2 then main_~this_expect~0 % 2 - 2 else main_~this_expect~0 % 2) && 1 == main_~this_buffer_empty~0) && !(0 != (if main_~P1~0 < 0 && 0 != main_~P1~0 % 2 then main_~P1~0 % 2 - 2 else main_~P1~0 % 2))) || (1 != main_~this_buffer_empty~0 && !(0 != (if main_~P1~0 < 0 && 0 != main_~P1~0 % 2 then main_~P1~0 % 2 - 2 else main_~P1~0 % 2))));main_~q~0 := 3; {198#false} is VALID [2020-07-29 01:25:31,252 INFO L280 TraceCheckUtils]: 9: Hoare triple {198#false} assume !(1 + main_~this_expect~0 <= 2147483647); {198#false} is VALID [2020-07-29 01:25:31,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:25:31,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28211422] [2020-07-29 01:25:31,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:25:31,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-29 01:25:31,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117691193] [2020-07-29 01:25:31,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-29 01:25:31,268 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-29 01:25:31,272 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:25:31,297 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:25:31,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-29 01:25:31,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:25:31,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 01:25:31,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:25:31,312 INFO L87 Difference]: Start difference. First operand 194 states. Second operand 3 states. [2020-07-29 01:25:32,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:25:32,074 INFO L93 Difference]: Finished difference Result 389 states and 596 transitions. [2020-07-29 01:25:32,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 01:25:32,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-29 01:25:32,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-29 01:25:32,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:25:32,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 596 transitions. [2020-07-29 01:25:32,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:25:32,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 596 transitions. [2020-07-29 01:25:32,113 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 596 transitions. [2020-07-29 01:25:32,971 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 596 edges. 596 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:25:32,996 INFO L225 Difference]: With dead ends: 389 [2020-07-29 01:25:32,996 INFO L226 Difference]: Without dead ends: 166 [2020-07-29 01:25:33,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:25:33,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-07-29 01:25:33,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-07-29 01:25:33,056 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:25:33,057 INFO L82 GeneralOperation]: Start isEquivalent. First operand 166 states. Second operand 166 states. [2020-07-29 01:25:33,058 INFO L74 IsIncluded]: Start isIncluded. First operand 166 states. Second operand 166 states. [2020-07-29 01:25:33,058 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 166 states. [2020-07-29 01:25:33,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:25:33,067 INFO L93 Difference]: Finished difference Result 166 states and 209 transitions. [2020-07-29 01:25:33,067 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 209 transitions. [2020-07-29 01:25:33,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:25:33,069 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:25:33,069 INFO L74 IsIncluded]: Start isIncluded. First operand 166 states. Second operand 166 states. [2020-07-29 01:25:33,070 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 166 states. [2020-07-29 01:25:33,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:25:33,078 INFO L93 Difference]: Finished difference Result 166 states and 209 transitions. [2020-07-29 01:25:33,078 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 209 transitions. [2020-07-29 01:25:33,080 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:25:33,080 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:25:33,081 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:25:33,081 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:25:33,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-07-29 01:25:33,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 209 transitions. [2020-07-29 01:25:33,090 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 209 transitions. Word has length 10 [2020-07-29 01:25:33,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-29 01:25:33,090 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 209 transitions. [2020-07-29 01:25:33,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-29 01:25:33,091 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 209 transitions. [2020-07-29 01:25:33,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-29 01:25:33,092 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:25:33,092 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 01:25:33,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-29 01:25:33,093 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:25:33,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:25:33,093 INFO L82 PathProgramCache]: Analyzing trace with hash 658032322, now seen corresponding path program 1 times [2020-07-29 01:25:33,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:25:33,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919147568] [2020-07-29 01:25:33,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:25:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:25:33,185 INFO L280 TraceCheckUtils]: 0: Hoare triple {1103#true} ~m_Protocol~0 := 1;~m_msg_2~0 := 2;~m_recv_ack_2~0 := 3;~m_msg_1_1~0 := 4;~m_msg_1_2~0 := 5;~m_recv_ack_1_1~0 := 6;~m_recv_ack_1_2~0 := 7; {1103#true} is VALID [2020-07-29 01:25:33,185 INFO L280 TraceCheckUtils]: 1: Hoare triple {1103#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~short24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~short41, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~q~0, main_~method_id~0, main_~this_expect~0, main_~this_buffer_empty~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_expect~0 := 0;main_~this_buffer_empty~0 := 0; {1103#true} is VALID [2020-07-29 01:25:33,186 INFO L280 TraceCheckUtils]: 2: Hoare triple {1103#true} goto; {1103#true} is VALID [2020-07-29 01:25:33,186 INFO L280 TraceCheckUtils]: 3: Hoare triple {1103#true} assume !false;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;main_~P1~0 := main_#t~nondet0;havoc main_#t~nondet0;assume -2147483648 <= main_#t~nondet1 && main_#t~nondet1 <= 2147483647;main_~P2~0 := main_#t~nondet1;havoc main_#t~nondet1;assume -2147483648 <= main_#t~nondet2 && main_#t~nondet2 <= 2147483647;main_~P3~0 := main_#t~nondet2;havoc main_#t~nondet2;assume -2147483648 <= main_#t~nondet3 && main_#t~nondet3 <= 2147483647;main_~P4~0 := main_#t~nondet3;havoc main_#t~nondet3;assume -2147483648 <= main_#t~nondet4 && main_#t~nondet4 <= 2147483647;main_~P5~0 := main_#t~nondet4;havoc main_#t~nondet4;assume -2147483648 <= main_#t~nondet5 && main_#t~nondet5 <= 2147483647;main_~P6~0 := main_#t~nondet5;havoc main_#t~nondet5;assume -2147483648 <= main_#t~nondet6 && main_#t~nondet6 <= 2147483647;main_~P7~0 := main_#t~nondet6;havoc main_#t~nondet6;assume -2147483648 <= main_#t~nondet7 && main_#t~nondet7 <= 2147483647;main_~P8~0 := main_#t~nondet7;havoc main_#t~nondet7;assume -2147483648 <= main_#t~nondet8 && main_#t~nondet8 <= 2147483647;main_~P9~0 := main_#t~nondet8;havoc main_#t~nondet8; {1103#true} is VALID [2020-07-29 01:25:33,186 INFO L280 TraceCheckUtils]: 4: Hoare triple {1103#true} assume 0 == main_~q~0;assume -2147483648 <= main_#t~nondet9 && main_#t~nondet9 <= 2147483647; {1103#true} is VALID [2020-07-29 01:25:33,187 INFO L280 TraceCheckUtils]: 5: Hoare triple {1103#true} assume 0 != main_#t~nondet9;havoc main_#t~nondet9; {1103#true} is VALID [2020-07-29 01:25:33,187 INFO L280 TraceCheckUtils]: 6: Hoare triple {1103#true} main_~method_id~0 := 1; {1103#true} is VALID [2020-07-29 01:25:33,188 INFO L280 TraceCheckUtils]: 7: Hoare triple {1103#true} assume !false;main_~q~0 := 1;main_~this_expect~0 := 0;main_~this_buffer_empty~0 := 1; {1105#(<= ULTIMATE.start_main_~this_expect~0 0)} is VALID [2020-07-29 01:25:33,189 INFO L280 TraceCheckUtils]: 8: Hoare triple {1105#(<= ULTIMATE.start_main_~this_expect~0 0)} assume !false;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;main_~P1~0 := main_#t~nondet0;havoc main_#t~nondet0;assume -2147483648 <= main_#t~nondet1 && main_#t~nondet1 <= 2147483647;main_~P2~0 := main_#t~nondet1;havoc main_#t~nondet1;assume -2147483648 <= main_#t~nondet2 && main_#t~nondet2 <= 2147483647;main_~P3~0 := main_#t~nondet2;havoc main_#t~nondet2;assume -2147483648 <= main_#t~nondet3 && main_#t~nondet3 <= 2147483647;main_~P4~0 := main_#t~nondet3;havoc main_#t~nondet3;assume -2147483648 <= main_#t~nondet4 && main_#t~nondet4 <= 2147483647;main_~P5~0 := main_#t~nondet4;havoc main_#t~nondet4;assume -2147483648 <= main_#t~nondet5 && main_#t~nondet5 <= 2147483647;main_~P6~0 := main_#t~nondet5;havoc main_#t~nondet5;assume -2147483648 <= main_#t~nondet6 && main_#t~nondet6 <= 2147483647;main_~P7~0 := main_#t~nondet6;havoc main_#t~nondet6;assume -2147483648 <= main_#t~nondet7 && main_#t~nondet7 <= 2147483647;main_~P8~0 := main_#t~nondet7;havoc main_#t~nondet7;assume -2147483648 <= main_#t~nondet8 && main_#t~nondet8 <= 2147483647;main_~P9~0 := main_#t~nondet8;havoc main_#t~nondet8; {1105#(<= ULTIMATE.start_main_~this_expect~0 0)} is VALID [2020-07-29 01:25:33,190 INFO L280 TraceCheckUtils]: 9: Hoare triple {1105#(<= ULTIMATE.start_main_~this_expect~0 0)} assume !(0 == main_~q~0); {1105#(<= ULTIMATE.start_main_~this_expect~0 0)} is VALID [2020-07-29 01:25:33,190 INFO L280 TraceCheckUtils]: 10: Hoare triple {1105#(<= ULTIMATE.start_main_~this_expect~0 0)} assume 1 == main_~q~0;assume -2147483648 <= main_#t~nondet10 && main_#t~nondet10 <= 2147483647; {1105#(<= ULTIMATE.start_main_~this_expect~0 0)} is VALID [2020-07-29 01:25:33,191 INFO L280 TraceCheckUtils]: 11: Hoare triple {1105#(<= ULTIMATE.start_main_~this_expect~0 0)} assume 0 != main_#t~nondet10;havoc main_#t~nondet10; {1105#(<= ULTIMATE.start_main_~this_expect~0 0)} is VALID [2020-07-29 01:25:33,192 INFO L280 TraceCheckUtils]: 12: Hoare triple {1105#(<= ULTIMATE.start_main_~this_expect~0 0)} assume !(0 != (if main_~P1~0 < 0 && 0 != main_~P1~0 % 2 then main_~P1~0 % 2 - 2 else main_~P1~0 % 2));main_~method_id~0 := 2; {1105#(<= ULTIMATE.start_main_~this_expect~0 0)} is VALID [2020-07-29 01:25:33,193 INFO L280 TraceCheckUtils]: 13: Hoare triple {1105#(<= ULTIMATE.start_main_~this_expect~0 0)} assume !((((if main_~P1~0 < 0 && 0 != main_~P1~0 % 2 then main_~P1~0 % 2 - 2 else main_~P1~0 % 2) != (if main_~this_expect~0 < 0 && 0 != main_~this_expect~0 % 2 then main_~this_expect~0 % 2 - 2 else main_~this_expect~0 % 2) && 1 == main_~this_buffer_empty~0) && !(0 != (if main_~P1~0 < 0 && 0 != main_~P1~0 % 2 then main_~P1~0 % 2 - 2 else main_~P1~0 % 2))) || (1 != main_~this_buffer_empty~0 && !(0 != (if main_~P1~0 < 0 && 0 != main_~P1~0 % 2 then main_~P1~0 % 2 - 2 else main_~P1~0 % 2))));main_~q~0 := 3; {1105#(<= ULTIMATE.start_main_~this_expect~0 0)} is VALID [2020-07-29 01:25:33,193 INFO L280 TraceCheckUtils]: 14: Hoare triple {1105#(<= ULTIMATE.start_main_~this_expect~0 0)} assume !(1 + main_~this_expect~0 <= 2147483647); {1104#false} is VALID [2020-07-29 01:25:33,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:25:33,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919147568] [2020-07-29 01:25:33,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:25:33,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-29 01:25:33,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824013440] [2020-07-29 01:25:33,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-07-29 01:25:33,198 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-29 01:25:33,198 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:25:33,217 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:25:33,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-29 01:25:33,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:25:33,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 01:25:33,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:25:33,218 INFO L87 Difference]: Start difference. First operand 166 states and 209 transitions. Second operand 3 states. [2020-07-29 01:25:33,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:25:33,696 INFO L93 Difference]: Finished difference Result 304 states and 407 transitions. [2020-07-29 01:25:33,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 01:25:33,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-07-29 01:25:33,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-29 01:25:33,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:25:33,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 402 transitions. [2020-07-29 01:25:33,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:25:33,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 402 transitions. [2020-07-29 01:25:33,705 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 402 transitions. [2020-07-29 01:25:34,166 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 402 edges. 402 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:25:34,177 INFO L225 Difference]: With dead ends: 304 [2020-07-29 01:25:34,177 INFO L226 Difference]: Without dead ends: 287 [2020-07-29 01:25:34,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:25:34,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-07-29 01:25:34,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 263. [2020-07-29 01:25:34,204 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:25:34,205 INFO L82 GeneralOperation]: Start isEquivalent. First operand 287 states. Second operand 263 states. [2020-07-29 01:25:34,205 INFO L74 IsIncluded]: Start isIncluded. First operand 287 states. Second operand 263 states. [2020-07-29 01:25:34,205 INFO L87 Difference]: Start difference. First operand 287 states. Second operand 263 states. [2020-07-29 01:25:34,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:25:34,217 INFO L93 Difference]: Finished difference Result 287 states and 390 transitions. [2020-07-29 01:25:34,217 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 390 transitions. [2020-07-29 01:25:34,219 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:25:34,219 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:25:34,219 INFO L74 IsIncluded]: Start isIncluded. First operand 263 states. Second operand 287 states. [2020-07-29 01:25:34,219 INFO L87 Difference]: Start difference. First operand 263 states. Second operand 287 states. [2020-07-29 01:25:34,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:25:34,231 INFO L93 Difference]: Finished difference Result 287 states and 390 transitions. [2020-07-29 01:25:34,232 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 390 transitions. [2020-07-29 01:25:34,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:25:34,233 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:25:34,233 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:25:34,233 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:25:34,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-07-29 01:25:34,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 367 transitions. [2020-07-29 01:25:34,243 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 367 transitions. Word has length 15 [2020-07-29 01:25:34,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-29 01:25:34,244 INFO L479 AbstractCegarLoop]: Abstraction has 263 states and 367 transitions. [2020-07-29 01:25:34,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-29 01:25:34,244 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 367 transitions. [2020-07-29 01:25:34,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-29 01:25:34,245 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:25:34,245 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 01:25:34,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-29 01:25:34,245 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:25:34,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:25:34,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1075834418, now seen corresponding path program 1 times [2020-07-29 01:25:34,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:25:34,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034638604] [2020-07-29 01:25:34,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:25:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:25:34,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-29 01:25:34,283 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.ProofTermGenerator.convert(ProofTermGenerator.java:150) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getProof(SMTInterpol.java:797) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) 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.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) 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) [2020-07-29 01:25:34,292 INFO L168 Benchmark]: Toolchain (without parser) took 6314.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 219.7 MB). Free memory was 961.6 MB in the beginning and 952.5 MB in the end (delta: 9.0 MB). Peak memory consumption was 228.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:25:34,292 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:25:34,293 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -164.1 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2020-07-29 01:25:34,294 INFO L168 Benchmark]: Boogie Procedure Inliner took 131.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2020-07-29 01:25:34,295 INFO L168 Benchmark]: Boogie Preprocessor took 61.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:25:34,295 INFO L168 Benchmark]: RCFGBuilder took 2075.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 964.9 MB in the end (delta: 152.5 MB). Peak memory consumption was 152.5 MB. Max. memory is 11.5 GB. [2020-07-29 01:25:34,296 INFO L168 Benchmark]: TraceAbstraction took 3436.16 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.5 MB). Free memory was 964.9 MB in the beginning and 952.5 MB in the end (delta: 12.3 MB). Peak memory consumption was 88.9 MB. Max. memory is 11.5 GB. [2020-07-29 01:25:34,300 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 598.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -164.1 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 131.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 2075.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 964.9 MB in the end (delta: 152.5 MB). Peak memory consumption was 152.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3436.16 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.5 MB). Free memory was 964.9 MB in the beginning and 952.5 MB in the end (delta: 12.3 MB). Peak memory consumption was 88.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...