./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash 0a8f096dedbbe798ef2fe808d4231fc7a503c17f .......................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:23:00,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:23:01,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:23:01,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:23:01,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:23:01,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:23:01,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:23:01,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:23:01,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:23:01,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:23:01,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:23:01,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:23:01,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:23:01,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:23:01,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:23:01,037 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:23:01,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:23:01,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:23:01,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:23:01,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:23:01,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:23:01,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:23:01,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:23:01,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:23:01,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:23:01,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:23:01,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:23:01,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:23:01,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:23:01,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:23:01,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:23:01,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:23:01,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:23:01,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:23:01,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:23:01,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:23:01,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:23:01,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:23:01,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:23:01,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:23:01,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:23:01,071 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-20 06:23:01,093 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:23:01,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:23:01,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:23:01,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:23:01,095 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:23:01,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:23:01,095 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:23:01,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:23:01,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:23:01,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 06:23:01,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:23:01,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 06:23:01,096 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-20 06:23:01,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:23:01,097 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:23:01,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 06:23:01,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:23:01,097 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:23:01,097 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:23:01,097 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:23:01,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:23:01,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:23:01,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:23:01,098 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 06:23:01,098 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:23:01,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:23:01,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 06:23:01,099 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:23:01,099 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a8f096dedbbe798ef2fe808d4231fc7a503c17f [2020-10-20 06:23:01,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:23:01,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:23:01,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:23:01,306 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:23:01,306 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:23:01,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2020-10-20 06:23:01,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f45c3544/72c0b1537e684304880b1eaed6ab169d/FLAG43c512c07 [2020-10-20 06:23:01,900 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:23:01,900 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2020-10-20 06:23:01,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f45c3544/72c0b1537e684304880b1eaed6ab169d/FLAG43c512c07 [2020-10-20 06:23:02,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f45c3544/72c0b1537e684304880b1eaed6ab169d [2020-10-20 06:23:02,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:23:02,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:23:02,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:23:02,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:23:02,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:23:02,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:23:02" (1/1) ... [2020-10-20 06:23:02,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24541a44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:02, skipping insertion in model container [2020-10-20 06:23:02,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:23:02" (1/1) ... [2020-10-20 06:23:02,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:23:02,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:23:02,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:23:02,540 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:23:02,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:23:02,570 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:23:02,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:02 WrapperNode [2020-10-20 06:23:02,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:23:02,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:23:02,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:23:02,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:23:02,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:02" (1/1) ... [2020-10-20 06:23:02,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:02" (1/1) ... [2020-10-20 06:23:02,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:23:02,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:23:02,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:23:02,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:23:02,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:02" (1/1) ... [2020-10-20 06:23:02,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:02" (1/1) ... [2020-10-20 06:23:02,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:02" (1/1) ... [2020-10-20 06:23:02,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:02" (1/1) ... [2020-10-20 06:23:02,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:02" (1/1) ... [2020-10-20 06:23:02,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:02" (1/1) ... [2020-10-20 06:23:02,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:02" (1/1) ... [2020-10-20 06:23:02,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:23:02,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:23:02,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:23:02,625 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:23:02,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:02" (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 [2020-10-20 06:23:02,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:23:02,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:23:02,848 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:23:02,848 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-20 06:23:02,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:23:02 BoogieIcfgContainer [2020-10-20 06:23:02,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:23:02,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:23:02,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:23:02,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:23:02,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:23:02" (1/3) ... [2020-10-20 06:23:02,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299c7b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:23:02, skipping insertion in model container [2020-10-20 06:23:02,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:23:02" (2/3) ... [2020-10-20 06:23:02,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299c7b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:23:02, skipping insertion in model container [2020-10-20 06:23:02,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:23:02" (3/3) ... [2020-10-20 06:23:02,859 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2020-10-20 06:23:02,868 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:23:02,874 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-20 06:23:02,885 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-20 06:23:02,907 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:23:02,908 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 06:23:02,908 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:23:02,908 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:23:02,908 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:23:02,908 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:23:02,908 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:23:02,909 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:23:02,924 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-10-20 06:23:02,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 06:23:02,929 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:23:02,930 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 06:23:02,931 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:23:02,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:23:02,937 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2020-10-20 06:23:02,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:23:02,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538054104] [2020-10-20 06:23:02,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:23:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:23:03,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:23:03,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538054104] [2020-10-20 06:23:03,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:23:03,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 06:23:03,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109759848] [2020-10-20 06:23:03,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:23:03,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:23:03,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:23:03,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:23:03,136 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-10-20 06:23:03,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:23:03,181 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-10-20 06:23:03,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:23:03,184 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-20 06:23:03,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:23:03,195 INFO L225 Difference]: With dead ends: 19 [2020-10-20 06:23:03,195 INFO L226 Difference]: Without dead ends: 10 [2020-10-20 06:23:03,198 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:23:03,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-10-20 06:23:03,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-10-20 06:23:03,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-20 06:23:03,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2020-10-20 06:23:03,240 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2020-10-20 06:23:03,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:23:03,241 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2020-10-20 06:23:03,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:23:03,241 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-10-20 06:23:03,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 06:23:03,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:23:03,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 06:23:03,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:23:03,242 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:23:03,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:23:03,243 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2020-10-20 06:23:03,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:23:03,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173338920] [2020-10-20 06:23:03,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:23:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:23:03,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:23:03,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173338920] [2020-10-20 06:23:03,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:23:03,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 06:23:03,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698841740] [2020-10-20 06:23:03,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:23:03,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:23:03,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:23:03,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:23:03,281 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2020-10-20 06:23:03,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:23:03,318 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2020-10-20 06:23:03,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:23:03,319 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-20 06:23:03,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:23:03,319 INFO L225 Difference]: With dead ends: 15 [2020-10-20 06:23:03,320 INFO L226 Difference]: Without dead ends: 14 [2020-10-20 06:23:03,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:23:03,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-10-20 06:23:03,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-10-20 06:23:03,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-20 06:23:03,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2020-10-20 06:23:03,326 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 4 [2020-10-20 06:23:03,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:23:03,326 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2020-10-20 06:23:03,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:23:03,326 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2020-10-20 06:23:03,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-20 06:23:03,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:23:03,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-20 06:23:03,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 06:23:03,328 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:23:03,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:23:03,328 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2020-10-20 06:23:03,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:23:03,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035820128] [2020-10-20 06:23:03,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:23:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:23:03,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:23:03,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035820128] [2020-10-20 06:23:03,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:23:03,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:23:03,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447183527] [2020-10-20 06:23:03,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:23:03,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:23:03,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:23:03,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:23:03,355 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand 3 states. [2020-10-20 06:23:03,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:23:03,367 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2020-10-20 06:23:03,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:23:03,368 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-20 06:23:03,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:23:03,368 INFO L225 Difference]: With dead ends: 16 [2020-10-20 06:23:03,369 INFO L226 Difference]: Without dead ends: 15 [2020-10-20 06:23:03,369 INFO L677 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 [2020-10-20 06:23:03,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-10-20 06:23:03,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2020-10-20 06:23:03,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-20 06:23:03,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-10-20 06:23:03,373 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 5 [2020-10-20 06:23:03,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:23:03,374 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-10-20 06:23:03,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:23:03,374 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-10-20 06:23:03,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-20 06:23:03,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:23:03,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-20 06:23:03,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 06:23:03,375 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:23:03,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:23:03,376 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2020-10-20 06:23:03,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:23:03,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74217257] [2020-10-20 06:23:03,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:23:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:23:03,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:23:03,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74217257] [2020-10-20 06:23:03,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:23:03,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:23:03,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781785619] [2020-10-20 06:23:03,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:23:03,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:23:03,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:23:03,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:23:03,401 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 3 states. [2020-10-20 06:23:03,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:23:03,421 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2020-10-20 06:23:03,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:23:03,421 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-20 06:23:03,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:23:03,422 INFO L225 Difference]: With dead ends: 13 [2020-10-20 06:23:03,422 INFO L226 Difference]: Without dead ends: 12 [2020-10-20 06:23:03,423 INFO L677 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 [2020-10-20 06:23:03,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-20 06:23:03,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-20 06:23:03,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-20 06:23:03,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2020-10-20 06:23:03,427 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2020-10-20 06:23:03,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:23:03,427 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-10-20 06:23:03,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:23:03,428 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-10-20 06:23:03,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 06:23:03,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:23:03,428 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-20 06:23:03,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 06:23:03,429 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:23:03,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:23:03,430 INFO L82 PathProgramCache]: Analyzing trace with hash 784501120, now seen corresponding path program 1 times [2020-10-20 06:23:03,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:23:03,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591913349] [2020-10-20 06:23:03,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:23:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:23:03,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:23:03,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591913349] [2020-10-20 06:23:03,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256312255] [2020-10-20 06:23:03,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:23:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:23:03,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:23:03,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:23:03,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:23:03,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:23:03,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3] total 5 [2020-10-20 06:23:03,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982526843] [2020-10-20 06:23:03,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:23:03,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:23:03,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:23:03,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:23:03,596 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 7 states. [2020-10-20 06:23:03,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:23:03,678 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-10-20 06:23:03,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:23:03,679 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2020-10-20 06:23:03,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:23:03,679 INFO L225 Difference]: With dead ends: 14 [2020-10-20 06:23:03,680 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 06:23:03,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:23:03,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 06:23:03,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 06:23:03,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 06:23:03,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 06:23:03,688 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-10-20 06:23:03,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:23:03,689 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:23:03,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:23:03,689 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:23:03,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 06:23:03,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:23:03,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 06:23:03,924 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-10-20 06:23:03,924 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 06:23:03,924 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2020-10-20 06:23:03,925 INFO L274 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-10-20 06:23:03,925 INFO L274 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-10-20 06:23:03,925 INFO L274 CegarLoopResult]: For program point L19(lines 19 24) no Hoare annotation was computed. [2020-10-20 06:23:03,926 INFO L270 CegarLoopResult]: At program point L19-2(lines 18 25) the Hoare annotation is: (and (<= ULTIMATE.start_main_~i~0 2147483647) (<= ULTIMATE.start_main_~N~0 2147483647) (<= ULTIMATE.start_main_~j~0 2147483647)) [2020-10-20 06:23:03,926 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-10-20 06:23:03,926 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2020-10-20 06:23:03,926 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 06:23:03,926 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 06:23:03,926 INFO L270 CegarLoopResult]: At program point L26(lines 13 27) the Hoare annotation is: (<= ULTIMATE.start_main_~i~0 2147483647) [2020-10-20 06:23:03,927 INFO L274 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-10-20 06:23:03,927 INFO L274 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-10-20 06:23:03,927 INFO L274 CegarLoopResult]: For program point L18-2(lines 18 25) no Hoare annotation was computed. [2020-10-20 06:23:03,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:23:03 BoogieIcfgContainer [2020-10-20 06:23:03,951 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:23:03,952 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:23:03,952 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:23:03,952 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:23:03,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:23:02" (3/4) ... [2020-10-20 06:23:03,957 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 06:23:03,971 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-20 06:23:03,971 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 06:23:04,021 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:23:04,021 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:23:04,023 INFO L168 Benchmark]: Toolchain (without parser) took 1737.85 ms. Allocated memory was 39.8 MB in the beginning and 44.6 MB in the end (delta: 4.7 MB). Free memory was 18.8 MB in the beginning and 21.6 MB in the end (delta: -2.8 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:23:04,024 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 30.9 MB. Free memory was 6.5 MB in the beginning and 6.5 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-20 06:23:04,025 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.59 ms. Allocated memory was 39.8 MB in the beginning and 40.9 MB in the end (delta: 1.0 MB). Free memory was 17.9 MB in the beginning and 19.8 MB in the end (delta: -1.9 MB). Peak memory consumption was 8.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:23:04,026 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.65 ms. Allocated memory is still 40.9 MB. Free memory was 19.7 MB in the beginning and 18.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:23:04,026 INFO L168 Benchmark]: Boogie Preprocessor took 19.58 ms. Allocated memory is still 40.9 MB. Free memory was 18.3 MB in the beginning and 17.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:23:04,027 INFO L168 Benchmark]: RCFGBuilder took 225.56 ms. Allocated memory was 40.9 MB in the beginning and 41.9 MB in the end (delta: 1.0 MB). Free memory was 17.1 MB in the beginning and 20.9 MB in the end (delta: -3.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:23:04,028 INFO L168 Benchmark]: TraceAbstraction took 1099.82 ms. Allocated memory was 41.9 MB in the beginning and 44.6 MB in the end (delta: 2.6 MB). Free memory was 20.3 MB in the beginning and 24.6 MB in the end (delta: -4.2 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:23:04,028 INFO L168 Benchmark]: Witness Printer took 69.60 ms. Allocated memory is still 44.6 MB. Free memory was 24.2 MB in the beginning and 21.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:23:04,032 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 30.9 MB. Free memory was 6.5 MB in the beginning and 6.5 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 280.59 ms. Allocated memory was 39.8 MB in the beginning and 40.9 MB in the end (delta: 1.0 MB). Free memory was 17.9 MB in the beginning and 19.8 MB in the end (delta: -1.9 MB). Peak memory consumption was 8.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 32.65 ms. Allocated memory is still 40.9 MB. Free memory was 19.7 MB in the beginning and 18.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 19.58 ms. Allocated memory is still 40.9 MB. Free memory was 18.3 MB in the beginning and 17.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 225.56 ms. Allocated memory was 40.9 MB in the beginning and 41.9 MB in the end (delta: 1.0 MB). Free memory was 17.1 MB in the beginning and 20.9 MB in the end (delta: -3.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1099.82 ms. Allocated memory was 41.9 MB in the beginning and 44.6 MB in the end (delta: 2.6 MB). Free memory was 20.3 MB in the beginning and 24.6 MB in the end (delta: -4.2 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 69.60 ms. Allocated memory is still 44.6 MB. Free memory was 24.2 MB in the beginning and 21.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: i <= 2147483647 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (i <= 2147483647 && N <= 2147483647) && j <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 31 SDtfs, 35 SDslu, 7 SDs, 0 SdLazy, 48 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 37 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 420 SizeOfPredicates, 2 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 0/4 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 correct! Received shutdown request...