./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.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/HarrisLalNoriRajamani-SAS2010-Fig2.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 6ff697c57265298ce2261966fa58c440777fc865 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:25:08,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:25:08,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:25:08,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:25:08,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:25:08,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:25:08,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:25:08,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:25:08,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:25:08,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:25:08,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:25:08,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:25:08,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:25:08,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:25:08,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:25:08,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:25:08,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:25:08,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:25:08,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:25:08,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:25:08,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:25:08,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:25:08,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:25:08,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:25:08,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:25:08,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:25:08,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:25:08,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:25:08,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:25:08,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:25:08,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:25:08,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:25:08,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:25:08,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:25:08,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:25:08,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:25:08,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:25:08,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:25:08,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:25:08,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:25:08,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:25:08,648 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-20 06:25:08,690 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:25:08,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:25:08,692 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:25:08,692 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:25:08,693 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:25:08,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:25:08,693 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:25:08,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:25:08,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:25:08,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 06:25:08,695 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:25:08,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 06:25:08,696 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-20 06:25:08,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:25:08,696 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:25:08,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 06:25:08,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:25:08,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:25:08,698 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:25:08,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:25:08,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:25:08,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:25:08,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:25:08,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 06:25:08,699 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:25:08,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:25:08,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 06:25:08,700 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:25:08,700 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 -> 6ff697c57265298ce2261966fa58c440777fc865 [2020-10-20 06:25:08,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:25:08,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:25:08,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:25:08,932 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:25:08,934 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:25:08,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2020-10-20 06:25:08,991 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84757b8a9/ed958510846b45108d205af075223626/FLAG504423352 [2020-10-20 06:25:09,438 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:25:09,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2020-10-20 06:25:09,451 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84757b8a9/ed958510846b45108d205af075223626/FLAG504423352 [2020-10-20 06:25:09,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84757b8a9/ed958510846b45108d205af075223626 [2020-10-20 06:25:09,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:25:09,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:25:09,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:25:09,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:25:09,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:25:09,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:25:09" (1/1) ... [2020-10-20 06:25:09,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6beb2566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:09, skipping insertion in model container [2020-10-20 06:25:09,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:25:09" (1/1) ... [2020-10-20 06:25:09,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:25:09,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:25:10,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:25:10,076 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:25:10,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:25:10,109 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:25:10,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:10 WrapperNode [2020-10-20 06:25:10,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:25:10,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:25:10,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:25:10,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:25:10,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:10" (1/1) ... [2020-10-20 06:25:10,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:10" (1/1) ... [2020-10-20 06:25:10,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:25:10,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:25:10,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:25:10,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:25:10,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:10" (1/1) ... [2020-10-20 06:25:10,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:10" (1/1) ... [2020-10-20 06:25:10,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:10" (1/1) ... [2020-10-20 06:25:10,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:10" (1/1) ... [2020-10-20 06:25:10,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:10" (1/1) ... [2020-10-20 06:25:10,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:10" (1/1) ... [2020-10-20 06:25:10,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:10" (1/1) ... [2020-10-20 06:25:10,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:25:10,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:25:10,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:25:10,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:25:10,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:10" (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 06:25:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:25:10,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:25:10,612 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:25:10,613 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-10-20 06:25:10,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:25:10 BoogieIcfgContainer [2020-10-20 06:25:10,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:25:10,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:25:10,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:25:10,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:25:10,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:25:09" (1/3) ... [2020-10-20 06:25:10,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aefcdf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:25:10, skipping insertion in model container [2020-10-20 06:25:10,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:10" (2/3) ... [2020-10-20 06:25:10,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aefcdf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:25:10, skipping insertion in model container [2020-10-20 06:25:10,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:25:10" (3/3) ... [2020-10-20 06:25:10,632 INFO L111 eAbstractionObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig2.c [2020-10-20 06:25:10,645 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:25:10,652 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-20 06:25:10,669 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-20 06:25:10,696 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:25:10,696 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 06:25:10,696 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:25:10,696 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:25:10,697 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:25:10,697 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:25:10,697 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:25:10,697 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:25:10,717 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-10-20 06:25:10,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-20 06:25:10,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:25:10,724 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-20 06:25:10,725 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:25:10,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:25:10,731 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2020-10-20 06:25:10,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:25:10,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367820402] [2020-10-20 06:25:10,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:25:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:25:10,872 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 06:25:10,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367820402] [2020-10-20 06:25:10,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:25:10,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 06:25:10,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948692949] [2020-10-20 06:25:10,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:25:10,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:25:10,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:25:10,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:25:10,894 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 3 states. [2020-10-20 06:25:10,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:25:10,965 INFO L93 Difference]: Finished difference Result 69 states and 103 transitions. [2020-10-20 06:25:10,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:25:10,970 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-20 06:25:10,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:25:10,981 INFO L225 Difference]: With dead ends: 69 [2020-10-20 06:25:10,982 INFO L226 Difference]: Without dead ends: 59 [2020-10-20 06:25:10,985 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 06:25:11,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-20 06:25:11,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-20 06:25:11,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-20 06:25:11,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 93 transitions. [2020-10-20 06:25:11,026 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 93 transitions. Word has length 3 [2020-10-20 06:25:11,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:25:11,026 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 93 transitions. [2020-10-20 06:25:11,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:25:11,027 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 93 transitions. [2020-10-20 06:25:11,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 06:25:11,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:25:11,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 06:25:11,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:25:11,029 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:25:11,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:25:11,030 INFO L82 PathProgramCache]: Analyzing trace with hash 957349, now seen corresponding path program 1 times [2020-10-20 06:25:11,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:25:11,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883966774] [2020-10-20 06:25:11,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:25:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:25:11,050 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 06:25:11,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883966774] [2020-10-20 06:25:11,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:25:11,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 06:25:11,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878779360] [2020-10-20 06:25:11,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:25:11,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:25:11,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:25:11,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:25:11,055 INFO L87 Difference]: Start difference. First operand 59 states and 93 transitions. Second operand 3 states. [2020-10-20 06:25:11,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:25:11,096 INFO L93 Difference]: Finished difference Result 113 states and 180 transitions. [2020-10-20 06:25:11,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:25:11,097 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-20 06:25:11,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:25:11,099 INFO L225 Difference]: With dead ends: 113 [2020-10-20 06:25:11,099 INFO L226 Difference]: Without dead ends: 111 [2020-10-20 06:25:11,100 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 06:25:11,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-20 06:25:11,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 106. [2020-10-20 06:25:11,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-20 06:25:11,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 173 transitions. [2020-10-20 06:25:11,123 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 173 transitions. Word has length 4 [2020-10-20 06:25:11,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:25:11,124 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 173 transitions. [2020-10-20 06:25:11,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:25:11,124 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 173 transitions. [2020-10-20 06:25:11,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 06:25:11,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:25:11,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:25:11,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 06:25:11,127 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:25:11,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:25:11,128 INFO L82 PathProgramCache]: Analyzing trace with hash 725490672, now seen corresponding path program 1 times [2020-10-20 06:25:11,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:25:11,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340585749] [2020-10-20 06:25:11,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:25:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:25:11,179 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 06:25:11,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340585749] [2020-10-20 06:25:11,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:25:11,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 06:25:11,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502048059] [2020-10-20 06:25:11,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:25:11,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:25:11,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:25:11,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:25:11,189 INFO L87 Difference]: Start difference. First operand 106 states and 173 transitions. Second operand 3 states. [2020-10-20 06:25:11,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:25:11,226 INFO L93 Difference]: Finished difference Result 110 states and 178 transitions. [2020-10-20 06:25:11,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:25:11,226 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-20 06:25:11,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:25:11,228 INFO L225 Difference]: With dead ends: 110 [2020-10-20 06:25:11,228 INFO L226 Difference]: Without dead ends: 109 [2020-10-20 06:25:11,229 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 06:25:11,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-20 06:25:11,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2020-10-20 06:25:11,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-20 06:25:11,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 175 transitions. [2020-10-20 06:25:11,242 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 175 transitions. Word has length 14 [2020-10-20 06:25:11,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:25:11,243 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 175 transitions. [2020-10-20 06:25:11,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:25:11,243 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 175 transitions. [2020-10-20 06:25:11,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 06:25:11,245 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:25:11,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:25:11,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 06:25:11,246 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:25:11,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:25:11,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1015374612, now seen corresponding path program 1 times [2020-10-20 06:25:11,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:25:11,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525721113] [2020-10-20 06:25:11,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:25:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:25:11,284 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 06:25:11,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525721113] [2020-10-20 06:25:11,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:25:11,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:25:11,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966146671] [2020-10-20 06:25:11,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:25:11,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:25:11,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:25:11,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:25:11,287 INFO L87 Difference]: Start difference. First operand 108 states and 175 transitions. Second operand 4 states. [2020-10-20 06:25:11,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:25:11,327 INFO L93 Difference]: Finished difference Result 108 states and 175 transitions. [2020-10-20 06:25:11,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:25:11,327 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-20 06:25:11,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:25:11,329 INFO L225 Difference]: With dead ends: 108 [2020-10-20 06:25:11,329 INFO L226 Difference]: Without dead ends: 107 [2020-10-20 06:25:11,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:25:11,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-20 06:25:11,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-10-20 06:25:11,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-20 06:25:11,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 174 transitions. [2020-10-20 06:25:11,340 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 174 transitions. Word has length 15 [2020-10-20 06:25:11,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:25:11,341 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 174 transitions. [2020-10-20 06:25:11,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:25:11,341 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 174 transitions. [2020-10-20 06:25:11,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 06:25:11,343 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:25:11,343 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:25:11,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 06:25:11,344 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:25:11,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:25:11,344 INFO L82 PathProgramCache]: Analyzing trace with hash -145038970, now seen corresponding path program 1 times [2020-10-20 06:25:11,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:25:11,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97452159] [2020-10-20 06:25:11,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:25:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:25:11,405 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 06:25:11,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97452159] [2020-10-20 06:25:11,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:25:11,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:25:11,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954475769] [2020-10-20 06:25:11,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:25:11,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:25:11,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:25:11,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:25:11,407 INFO L87 Difference]: Start difference. First operand 107 states and 174 transitions. Second operand 4 states. [2020-10-20 06:25:11,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:25:11,446 INFO L93 Difference]: Finished difference Result 115 states and 182 transitions. [2020-10-20 06:25:11,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:25:11,447 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-20 06:25:11,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:25:11,449 INFO L225 Difference]: With dead ends: 115 [2020-10-20 06:25:11,449 INFO L226 Difference]: Without dead ends: 114 [2020-10-20 06:25:11,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:25:11,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-20 06:25:11,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 104. [2020-10-20 06:25:11,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-20 06:25:11,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 171 transitions. [2020-10-20 06:25:11,462 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 171 transitions. Word has length 16 [2020-10-20 06:25:11,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:25:11,462 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 171 transitions. [2020-10-20 06:25:11,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:25:11,463 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 171 transitions. [2020-10-20 06:25:11,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 06:25:11,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:25:11,464 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:25:11,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 06:25:11,465 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:25:11,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:25:11,466 INFO L82 PathProgramCache]: Analyzing trace with hash -145032788, now seen corresponding path program 1 times [2020-10-20 06:25:11,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:25:11,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24756582] [2020-10-20 06:25:11,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:25:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:25:11,508 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 06:25:11,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24756582] [2020-10-20 06:25:11,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:25:11,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:25:11,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348168624] [2020-10-20 06:25:11,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:25:11,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:25:11,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:25:11,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:25:11,510 INFO L87 Difference]: Start difference. First operand 104 states and 171 transitions. Second operand 4 states. [2020-10-20 06:25:11,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:25:11,549 INFO L93 Difference]: Finished difference Result 110 states and 177 transitions. [2020-10-20 06:25:11,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:25:11,550 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-20 06:25:11,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:25:11,551 INFO L225 Difference]: With dead ends: 110 [2020-10-20 06:25:11,551 INFO L226 Difference]: Without dead ends: 109 [2020-10-20 06:25:11,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:25:11,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-20 06:25:11,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2020-10-20 06:25:11,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-20 06:25:11,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 173 transitions. [2020-10-20 06:25:11,561 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 173 transitions. Word has length 16 [2020-10-20 06:25:11,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:25:11,561 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 173 transitions. [2020-10-20 06:25:11,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:25:11,561 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 173 transitions. [2020-10-20 06:25:11,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 06:25:11,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:25:11,577 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:25:11,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 06:25:11,578 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:25:11,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:25:11,578 INFO L82 PathProgramCache]: Analyzing trace with hash 817434134, now seen corresponding path program 1 times [2020-10-20 06:25:11,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:25:11,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542139986] [2020-10-20 06:25:11,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:25:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:25:11,670 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 06:25:11,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542139986] [2020-10-20 06:25:11,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587029911] [2020-10-20 06:25:11,672 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 06:25:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:25:11,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:25:11,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:25:11,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:25:11,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 06:25:11,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2020-10-20 06:25:11,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853367300] [2020-10-20 06:25:11,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:25:11,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:25:11,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:25:11,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:25:11,843 INFO L87 Difference]: Start difference. First operand 106 states and 173 transitions. Second operand 4 states. [2020-10-20 06:25:11,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:25:11,882 INFO L93 Difference]: Finished difference Result 113 states and 180 transitions. [2020-10-20 06:25:11,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:25:11,882 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-20 06:25:11,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:25:11,883 INFO L225 Difference]: With dead ends: 113 [2020-10-20 06:25:11,884 INFO L226 Difference]: Without dead ends: 106 [2020-10-20 06:25:11,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:25:11,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-20 06:25:11,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-10-20 06:25:11,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-20 06:25:11,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 172 transitions. [2020-10-20 06:25:11,899 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 172 transitions. Word has length 17 [2020-10-20 06:25:11,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:25:11,900 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 172 transitions. [2020-10-20 06:25:11,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:25:11,900 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 172 transitions. [2020-10-20 06:25:11,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 06:25:11,901 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:25:11,901 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:25:12,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-10-20 06:25:12,116 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:25:12,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:25:12,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1943488504, now seen corresponding path program 1 times [2020-10-20 06:25:12,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:25:12,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483703491] [2020-10-20 06:25:12,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:25:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:25:12,127 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:25:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:25:12,135 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:25:12,150 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:25:12,151 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:25:12,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 06:25:12,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:25:12 BoogieIcfgContainer [2020-10-20 06:25:12,171 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:25:12,171 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:25:12,171 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:25:12,172 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:25:12,172 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:25:10" (3/4) ... [2020-10-20 06:25:12,174 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 06:25:12,209 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:25:12,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:25:12,212 INFO L168 Benchmark]: Toolchain (without parser) took 2398.33 ms. Allocated memory was 35.7 MB in the beginning and 50.9 MB in the end (delta: 15.2 MB). Free memory was 17.0 MB in the beginning and 25.1 MB in the end (delta: -8.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:12,213 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 34.1 MB. Free memory was 10.7 MB in the beginning and 10.6 MB in the end (delta: 87.6 kB). Peak memory consumption was 87.6 kB. Max. memory is 14.3 GB. [2020-10-20 06:25:12,214 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.35 ms. Allocated memory was 35.7 MB in the beginning and 43.5 MB in the end (delta: 7.9 MB). Free memory was 16.3 MB in the beginning and 26.1 MB in the end (delta: -9.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:12,214 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.84 ms. Allocated memory is still 43.5 MB. Free memory was 26.1 MB in the beginning and 23.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:12,215 INFO L168 Benchmark]: Boogie Preprocessor took 29.78 ms. Allocated memory is still 43.5 MB. Free memory was 23.9 MB in the beginning and 22.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:12,216 INFO L168 Benchmark]: RCFGBuilder took 435.32 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 22.3 MB in the beginning and 11.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 13.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:12,217 INFO L168 Benchmark]: TraceAbstraction took 1548.07 ms. Allocated memory was 45.6 MB in the beginning and 50.9 MB in the end (delta: 5.2 MB). Free memory was 28.5 MB in the beginning and 27.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:12,218 INFO L168 Benchmark]: Witness Printer took 38.47 ms. Allocated memory is still 50.9 MB. Free memory was 27.0 MB in the beginning and 25.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:12,222 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 34.1 MB. Free memory was 10.7 MB in the beginning and 10.6 MB in the end (delta: 87.6 kB). Peak memory consumption was 87.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 292.35 ms. Allocated memory was 35.7 MB in the beginning and 43.5 MB in the end (delta: 7.9 MB). Free memory was 16.3 MB in the beginning and 26.1 MB in the end (delta: -9.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 37.84 ms. Allocated memory is still 43.5 MB. Free memory was 26.1 MB in the beginning and 23.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 29.78 ms. Allocated memory is still 43.5 MB. Free memory was 23.9 MB in the beginning and 22.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 435.32 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 22.3 MB in the beginning and 11.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 13.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1548.07 ms. Allocated memory was 45.6 MB in the beginning and 50.9 MB in the end (delta: 5.2 MB). Free memory was 28.5 MB in the beginning and 27.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. * Witness Printer took 38.47 ms. Allocated memory is still 50.9 MB. Free memory was 27.0 MB in the beginning and 25.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 81]: integer overflow possible integer overflow possible We found a FailurePath: [L53] int d = 1; [L54] int x = __VERIFIER_nondet_int(); [L56] COND TRUE __VERIFIER_nondet_int() [L57] EXPR d - 1 [L57] d = d - 1 [L61] COND FALSE !(__VERIFIER_nondet_int()) [L64] COND FALSE !(__VERIFIER_nondet_int()) [L67] COND FALSE !(__VERIFIER_nondet_int()) [L70] COND FALSE !(__VERIFIER_nondet_int()) [L76] COND TRUE __VERIFIER_nondet_int() [L77] EXPR d - 1 [L77] d = d - 1 [L80] COND TRUE x > 0 [L81] x - d - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 65 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 587 SDtfs, 719 SDslu, 560 SDs, 0 SdLazy, 119 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 19 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 6856 SizeOfPredicates, 0 NumberOfNonLiveVariables, 39 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 2/4 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 incorrect! Received shutdown request...