./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/byte_add_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5fbdf5bf 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_1.5.800.v20200727-1323.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/bitvector/byte_add_1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ae0b445eba18f91587d7dc0f5adde2c3f4731247 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 22:45:27,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 22:45:27,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 22:45:27,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 22:45:27,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 22:45:27,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 22:45:27,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 22:45:27,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 22:45:27,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 22:45:27,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 22:45:27,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 22:45:27,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 22:45:27,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 22:45:27,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 22:45:27,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 22:45:27,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 22:45:27,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 22:45:27,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 22:45:27,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 22:45:27,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 22:45:27,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 22:45:27,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 22:45:27,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 22:45:27,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 22:45:27,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 22:45:27,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 22:45:27,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 22:45:27,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 22:45:27,800 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 22:45:27,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 22:45:27,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 22:45:27,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 22:45:27,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 22:45:27,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 22:45:27,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 22:45:27,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 22:45:27,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 22:45:27,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 22:45:27,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 22:45:27,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 22:45:27,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 22:45:27,808 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-08-30 22:45:27,830 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 22:45:27,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 22:45:27,831 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 22:45:27,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 22:45:27,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 22:45:27,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 22:45:27,833 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 22:45:27,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 22:45:27,833 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 22:45:27,833 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 22:45:27,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 22:45:27,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 22:45:27,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 22:45:27,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-30 22:45:27,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 22:45:27,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-30 22:45:27,835 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-30 22:45:27,835 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 22:45:27,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-30 22:45:27,835 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 22:45:27,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-30 22:45:27,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 22:45:27,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 22:45:27,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 22:45:27,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:45:27,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 22:45:27,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 22:45:27,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-30 22:45:27,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 22:45:27,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 22:45:27,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-30 22:45:27,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 22:45:27,838 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae0b445eba18f91587d7dc0f5adde2c3f4731247 [2021-08-30 22:45:28,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 22:45:28,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 22:45:28,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 22:45:28,226 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 22:45:28,229 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 22:45:28,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/byte_add_1-2.i [2021-08-30 22:45:28,292 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c55bf64f6/3d1014c0df8a479690dbbe3d1e68877a/FLAG810cb22a8 [2021-08-30 22:45:28,798 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 22:45:28,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/byte_add_1-2.i [2021-08-30 22:45:28,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c55bf64f6/3d1014c0df8a479690dbbe3d1e68877a/FLAG810cb22a8 [2021-08-30 22:45:29,268 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c55bf64f6/3d1014c0df8a479690dbbe3d1e68877a [2021-08-30 22:45:29,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 22:45:29,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-30 22:45:29,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 22:45:29,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 22:45:29,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 22:45:29,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:45:29" (1/1) ... [2021-08-30 22:45:29,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16624d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:29, skipping insertion in model container [2021-08-30 22:45:29,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:45:29" (1/1) ... [2021-08-30 22:45:29,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 22:45:29,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 22:45:29,436 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/byte_add_1-2.i[863,876] [2021-08-30 22:45:29,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:45:29,475 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 22:45:29,497 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/byte_add_1-2.i[863,876] [2021-08-30 22:45:29,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:45:29,547 INFO L208 MainTranslator]: Completed translation [2021-08-30 22:45:29,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:29 WrapperNode [2021-08-30 22:45:29,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 22:45:29,549 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-30 22:45:29,549 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-30 22:45:29,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-30 22:45:29,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:29" (1/1) ... [2021-08-30 22:45:29,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:29" (1/1) ... [2021-08-30 22:45:29,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-30 22:45:29,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 22:45:29,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 22:45:29,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 22:45:29,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:29" (1/1) ... [2021-08-30 22:45:29,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:29" (1/1) ... [2021-08-30 22:45:29,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:29" (1/1) ... [2021-08-30 22:45:29,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:29" (1/1) ... [2021-08-30 22:45:29,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:29" (1/1) ... [2021-08-30 22:45:29,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:29" (1/1) ... [2021-08-30 22:45:29,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:29" (1/1) ... [2021-08-30 22:45:29,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 22:45:29,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 22:45:29,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 22:45:29,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 22:45:29,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:29" (1/1) ... [2021-08-30 22:45:29,631 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:45:29,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:45:29,650 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-30 22:45:29,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-30 22:45:29,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-30 22:45:29,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-30 22:45:29,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 22:45:29,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 22:45:29,938 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 22:45:29,939 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-30 22:45:29,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:45:29 BoogieIcfgContainer [2021-08-30 22:45:29,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 22:45:29,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 22:45:29,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 22:45:29,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 22:45:29,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:45:29" (1/3) ... [2021-08-30 22:45:29,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3819c2b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:45:29, skipping insertion in model container [2021-08-30 22:45:29,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:29" (2/3) ... [2021-08-30 22:45:29,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3819c2b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:45:29, skipping insertion in model container [2021-08-30 22:45:29,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:45:29" (3/3) ... [2021-08-30 22:45:29,949 INFO L111 eAbstractionObserver]: Analyzing ICFG byte_add_1-2.i [2021-08-30 22:45:29,954 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 22:45:29,954 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 38 error locations. [2021-08-30 22:45:30,006 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 22:45:30,014 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-30 22:45:30,015 INFO L340 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2021-08-30 22:45:30,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 75 states have (on average 1.9066666666666667) internal successors, (143), 113 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:30,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-30 22:45:30,038 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:30,038 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-30 22:45:30,039 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-08-30 22:45:30,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:30,045 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-08-30 22:45:30,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:30,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249767995] [2021-08-30 22:45:30,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:30,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:30,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:30,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:30,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249767995] [2021-08-30 22:45:30,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249767995] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:30,228 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:45:30,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-30 22:45:30,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126121586] [2021-08-30 22:45:30,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-30 22:45:30,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:30,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-30 22:45:30,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-30 22:45:30,267 INFO L87 Difference]: Start difference. First operand has 114 states, 75 states have (on average 1.9066666666666667) internal successors, (143), 113 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:30,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:30,412 INFO L93 Difference]: Finished difference Result 135 states and 177 transitions. [2021-08-30 22:45:30,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-30 22:45:30,414 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-08-30 22:45:30,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:30,421 INFO L225 Difference]: With dead ends: 135 [2021-08-30 22:45:30,422 INFO L226 Difference]: Without dead ends: 69 [2021-08-30 22:45:30,424 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-30 22:45:30,427 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.83ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 125.43ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:30,427 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 103 Unknown, 0 Unchecked, 0.83ms Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 125.43ms Time] [2021-08-30 22:45:30,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-08-30 22:45:30,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-08-30 22:45:30,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 68 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:30,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2021-08-30 22:45:30,458 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 4 [2021-08-30 22:45:30,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:30,459 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2021-08-30 22:45:30,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:30,459 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2021-08-30 22:45:30,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-30 22:45:30,460 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:30,461 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:30,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-30 22:45:30,461 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-08-30 22:45:30,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:30,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1944470950, now seen corresponding path program 1 times [2021-08-30 22:45:30,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:30,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934095140] [2021-08-30 22:45:30,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:30,463 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:30,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:30,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:30,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934095140] [2021-08-30 22:45:30,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934095140] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:30,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:45:30,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-30 22:45:30,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739510747] [2021-08-30 22:45:30,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:45:30,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:30,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:45:30,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:45:30,609 INFO L87 Difference]: Start difference. First operand 69 states and 95 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:30,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:30,880 INFO L93 Difference]: Finished difference Result 145 states and 212 transitions. [2021-08-30 22:45:30,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:45:30,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-08-30 22:45:30,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:30,882 INFO L225 Difference]: With dead ends: 145 [2021-08-30 22:45:30,882 INFO L226 Difference]: Without dead ends: 98 [2021-08-30 22:45:30,883 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.63ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:45:30,884 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 30 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 182.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.83ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 253.78ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:30,884 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 0 Invalid, 205 Unknown, 0 Unchecked, 1.83ms Time], IncrementalHoareTripleChecker [16 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 253.78ms Time] [2021-08-30 22:45:30,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-08-30 22:45:30,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2021-08-30 22:45:30,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.3333333333333333) internal successors, (124), 93 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:30,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 124 transitions. [2021-08-30 22:45:30,895 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 124 transitions. Word has length 13 [2021-08-30 22:45:30,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:30,895 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 124 transitions. [2021-08-30 22:45:30,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:30,895 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 124 transitions. [2021-08-30 22:45:30,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-30 22:45:30,896 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:30,896 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:30,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-30 22:45:30,897 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-08-30 22:45:30,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:30,897 INFO L82 PathProgramCache]: Analyzing trace with hash 565405448, now seen corresponding path program 1 times [2021-08-30 22:45:30,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:30,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897296440] [2021-08-30 22:45:30,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:30,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:31,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-30 22:45:31,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:31,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897296440] [2021-08-30 22:45:31,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897296440] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:31,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:45:31,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-30 22:45:31,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468471818] [2021-08-30 22:45:31,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:45:31,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:31,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:45:31,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:45:31,026 INFO L87 Difference]: Start difference. First operand 94 states and 124 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:31,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:31,362 INFO L93 Difference]: Finished difference Result 221 states and 296 transitions. [2021-08-30 22:45:31,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:45:31,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-08-30 22:45:31,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:31,364 INFO L225 Difference]: With dead ends: 221 [2021-08-30 22:45:31,364 INFO L226 Difference]: Without dead ends: 164 [2021-08-30 22:45:31,365 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.34ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-30 22:45:31,366 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 116 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 226.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.16ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 296.94ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:31,366 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 0 Invalid, 401 Unknown, 0 Unchecked, 4.16ms Time], IncrementalHoareTripleChecker [2 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 296.94ms Time] [2021-08-30 22:45:31,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-08-30 22:45:31,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 104. [2021-08-30 22:45:31,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.3106796116504855) internal successors, (135), 103 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:31,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2021-08-30 22:45:31,379 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 135 transitions. Word has length 20 [2021-08-30 22:45:31,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:31,380 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 135 transitions. [2021-08-30 22:45:31,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:31,380 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 135 transitions. [2021-08-30 22:45:31,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-30 22:45:31,381 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:31,382 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:31,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-30 22:45:31,382 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-08-30 22:45:31,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:31,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1055427225, now seen corresponding path program 1 times [2021-08-30 22:45:31,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:31,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677859614] [2021-08-30 22:45:31,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:31,384 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:31,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-30 22:45:31,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:31,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677859614] [2021-08-30 22:45:31,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677859614] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:31,514 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:45:31,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-30 22:45:31,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199204425] [2021-08-30 22:45:31,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:45:31,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:31,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:45:31,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:45:31,516 INFO L87 Difference]: Start difference. First operand 104 states and 135 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:31,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:31,816 INFO L93 Difference]: Finished difference Result 259 states and 340 transitions. [2021-08-30 22:45:31,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:45:31,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-08-30 22:45:31,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:31,818 INFO L225 Difference]: With dead ends: 259 [2021-08-30 22:45:31,818 INFO L226 Difference]: Without dead ends: 194 [2021-08-30 22:45:31,819 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.26ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-30 22:45:31,820 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 124 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 217.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.07ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 277.86ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:31,820 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 0 Invalid, 409 Unknown, 0 Unchecked, 2.07ms Time], IncrementalHoareTripleChecker [2 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 277.86ms Time] [2021-08-30 22:45:31,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-08-30 22:45:31,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 120. [2021-08-30 22:45:31,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 1.2941176470588236) internal successors, (154), 119 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:31,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 154 transitions. [2021-08-30 22:45:31,830 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 154 transitions. Word has length 23 [2021-08-30 22:45:31,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:31,830 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 154 transitions. [2021-08-30 22:45:31,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:31,831 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 154 transitions. [2021-08-30 22:45:31,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-30 22:45:31,832 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:31,832 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:31,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-30 22:45:31,833 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-08-30 22:45:31,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:31,833 INFO L82 PathProgramCache]: Analyzing trace with hash -2113419709, now seen corresponding path program 1 times [2021-08-30 22:45:31,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:31,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797916932] [2021-08-30 22:45:31,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:31,834 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:31,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-30 22:45:31,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:31,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797916932] [2021-08-30 22:45:31,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797916932] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:31,887 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:45:31,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-30 22:45:31,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970612973] [2021-08-30 22:45:31,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:45:31,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:31,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:45:31,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:45:31,889 INFO L87 Difference]: Start difference. First operand 120 states and 154 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:31,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:31,968 INFO L93 Difference]: Finished difference Result 192 states and 248 transitions. [2021-08-30 22:45:31,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:45:31,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-08-30 22:45:31,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:31,970 INFO L225 Difference]: With dead ends: 192 [2021-08-30 22:45:31,970 INFO L226 Difference]: Without dead ends: 91 [2021-08-30 22:45:31,973 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.50ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:45:31,982 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 82 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.45ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.19ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:31,983 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 0 Invalid, 85 Unknown, 0 Unchecked, 0.45ms Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 73.19ms Time] [2021-08-30 22:45:31,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-08-30 22:45:31,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2021-08-30 22:45:31,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.288888888888889) internal successors, (116), 90 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:31,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 116 transitions. [2021-08-30 22:45:31,987 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 116 transitions. Word has length 26 [2021-08-30 22:45:31,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:31,987 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 116 transitions. [2021-08-30 22:45:31,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:31,987 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 116 transitions. [2021-08-30 22:45:31,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-08-30 22:45:31,988 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:31,988 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:31,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-30 22:45:31,989 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-08-30 22:45:31,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:31,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1291653624, now seen corresponding path program 1 times [2021-08-30 22:45:31,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:31,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005872112] [2021-08-30 22:45:31,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:31,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:32,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:32,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:32,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005872112] [2021-08-30 22:45:32,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005872112] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:32,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:45:32,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-30 22:45:32,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637934119] [2021-08-30 22:45:32,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:45:32,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:32,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:45:32,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:45:32,065 INFO L87 Difference]: Start difference. First operand 91 states and 116 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:32,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:32,163 INFO L93 Difference]: Finished difference Result 115 states and 149 transitions. [2021-08-30 22:45:32,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:45:32,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-08-30 22:45:32,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:32,164 INFO L225 Difference]: With dead ends: 115 [2021-08-30 22:45:32,164 INFO L226 Difference]: Without dead ends: 102 [2021-08-30 22:45:32,165 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.66ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:45:32,166 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.47ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.41ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:32,166 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 169 Unknown, 0 Unchecked, 0.47ms Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 92.41ms Time] [2021-08-30 22:45:32,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-08-30 22:45:32,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-08-30 22:45:32,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.297029702970297) internal successors, (131), 101 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:32,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 131 transitions. [2021-08-30 22:45:32,172 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 131 transitions. Word has length 32 [2021-08-30 22:45:32,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:32,172 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 131 transitions. [2021-08-30 22:45:32,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:32,173 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 131 transitions. [2021-08-30 22:45:32,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-08-30 22:45:32,174 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:32,174 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:32,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-30 22:45:32,174 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-08-30 22:45:32,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:32,175 INFO L82 PathProgramCache]: Analyzing trace with hash 280536374, now seen corresponding path program 1 times [2021-08-30 22:45:32,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:32,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596277020] [2021-08-30 22:45:32,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:32,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:32,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:32,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:32,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596277020] [2021-08-30 22:45:32,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596277020] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:45:32,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180083947] [2021-08-30 22:45:32,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:32,231 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:32,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:45:32,234 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 22:45:32,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-30 22:45:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:32,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 22:45:32,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:45:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:32,528 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-30 22:45:32,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180083947] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:32,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-30 22:45:32,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2021-08-30 22:45:32,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622436083] [2021-08-30 22:45:32,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:45:32,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:32,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:45:32,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-30 22:45:32,531 INFO L87 Difference]: Start difference. First operand 102 states and 131 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:32,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:32,777 INFO L93 Difference]: Finished difference Result 218 states and 316 transitions. [2021-08-30 22:45:32,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:45:32,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-08-30 22:45:32,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:32,778 INFO L225 Difference]: With dead ends: 218 [2021-08-30 22:45:32,778 INFO L226 Difference]: Without dead ends: 164 [2021-08-30 22:45:32,779 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 17.04ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-30 22:45:32,779 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 44 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 187.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.05ms SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 236.29ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:32,780 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 0 Invalid, 298 Unknown, 0 Unchecked, 1.05ms Time], IncrementalHoareTripleChecker [35 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 236.29ms Time] [2021-08-30 22:45:32,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-08-30 22:45:32,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 137. [2021-08-30 22:45:32,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 136 states have (on average 1.25) internal successors, (170), 136 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:32,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 170 transitions. [2021-08-30 22:45:32,794 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 170 transitions. Word has length 32 [2021-08-30 22:45:32,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:32,794 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 170 transitions. [2021-08-30 22:45:32,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:32,794 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 170 transitions. [2021-08-30 22:45:32,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-08-30 22:45:32,799 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:32,799 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:32,823 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-08-30 22:45:33,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:33,013 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-08-30 22:45:33,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:33,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1198830924, now seen corresponding path program 1 times [2021-08-30 22:45:33,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:33,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232181601] [2021-08-30 22:45:33,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:33,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:33,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:33,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:33,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232181601] [2021-08-30 22:45:33,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232181601] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:45:33,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345812993] [2021-08-30 22:45:33,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:33,147 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:33,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:45:33,148 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 22:45:33,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-30 22:45:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:33,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-30 22:45:33,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:45:33,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-30 22:45:33,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-30 22:45:33,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345812993] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:33,519 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-30 22:45:33,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2021-08-30 22:45:33,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650458795] [2021-08-30 22:45:33,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 22:45:33,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:33,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 22:45:33,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-30 22:45:33,521 INFO L87 Difference]: Start difference. First operand 137 states and 170 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:33,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:33,669 INFO L93 Difference]: Finished difference Result 258 states and 333 transitions. [2021-08-30 22:45:33,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 22:45:33,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-08-30 22:45:33,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:33,671 INFO L225 Difference]: With dead ends: 258 [2021-08-30 22:45:33,671 INFO L226 Difference]: Without dead ends: 139 [2021-08-30 22:45:33,671 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 44.69ms TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-08-30 22:45:33,672 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 90 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 108.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.87ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 133.04ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:33,672 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 0 Invalid, 205 Unknown, 0 Unchecked, 0.87ms Time], IncrementalHoareTripleChecker [11 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 133.04ms Time] [2021-08-30 22:45:33,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-08-30 22:45:33,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 124. [2021-08-30 22:45:33,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 123 states have (on average 1.2357723577235773) internal successors, (152), 123 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:33,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2021-08-30 22:45:33,677 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 39 [2021-08-30 22:45:33,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:33,678 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2021-08-30 22:45:33,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:33,678 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2021-08-30 22:45:33,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-08-30 22:45:33,679 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:33,679 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:33,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-30 22:45:33,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-08-30 22:45:33,903 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-08-30 22:45:33,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:33,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1326080275, now seen corresponding path program 1 times [2021-08-30 22:45:33,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:33,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301365573] [2021-08-30 22:45:33,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:33,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:33,988 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:33,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:33,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301365573] [2021-08-30 22:45:33,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301365573] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:45:33,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429641297] [2021-08-30 22:45:33,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:33,989 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:33,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:45:33,990 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 22:45:33,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-30 22:45:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:34,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-30 22:45:34,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:45:34,257 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-30 22:45:34,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-30 22:45:34,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429641297] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:34,259 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-30 22:45:34,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2021-08-30 22:45:34,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237605588] [2021-08-30 22:45:34,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:45:34,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:34,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:45:34,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-30 22:45:34,261 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:34,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:34,373 INFO L93 Difference]: Finished difference Result 248 states and 318 transitions. [2021-08-30 22:45:34,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:45:34,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-08-30 22:45:34,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:34,374 INFO L225 Difference]: With dead ends: 248 [2021-08-30 22:45:34,374 INFO L226 Difference]: Without dead ends: 150 [2021-08-30 22:45:34,375 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 24.74ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-30 22:45:34,375 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 8 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.55ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 85 IncrementalHoareTripleChecker+Unchecked, 103.46ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:34,376 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 0 Invalid, 247 Unknown, 0 Unchecked, 0.55ms Time], IncrementalHoareTripleChecker [12 Valid, 150 Invalid, 0 Unknown, 85 Unchecked, 103.46ms Time] [2021-08-30 22:45:34,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-08-30 22:45:34,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 118. [2021-08-30 22:45:34,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 117 states have (on average 1.2478632478632479) internal successors, (146), 117 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:34,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 146 transitions. [2021-08-30 22:45:34,380 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 146 transitions. Word has length 48 [2021-08-30 22:45:34,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:34,380 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 146 transitions. [2021-08-30 22:45:34,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:34,381 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 146 transitions. [2021-08-30 22:45:34,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-30 22:45:34,393 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:34,394 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:34,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-30 22:45:34,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:34,609 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-08-30 22:45:34,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:34,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1873302860, now seen corresponding path program 1 times [2021-08-30 22:45:34,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:34,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949425312] [2021-08-30 22:45:34,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:34,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:34,699 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:34,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:34,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949425312] [2021-08-30 22:45:34,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949425312] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:45:34,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748516646] [2021-08-30 22:45:34,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:34,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:34,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:45:34,712 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 22:45:34,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-30 22:45:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:34,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-30 22:45:34,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:45:35,097 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-30 22:45:35,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 22:45:35,364 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 27 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-30 22:45:35,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748516646] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 22:45:35,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-30 22:45:35,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 15 [2021-08-30 22:45:35,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130048943] [2021-08-30 22:45:35,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-30 22:45:35,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:35,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-30 22:45:35,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-08-30 22:45:35,372 INFO L87 Difference]: Start difference. First operand 118 states and 146 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:35,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:35,923 INFO L93 Difference]: Finished difference Result 338 states and 451 transitions. [2021-08-30 22:45:35,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-30 22:45:35,924 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-08-30 22:45:35,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:35,925 INFO L225 Difference]: With dead ends: 338 [2021-08-30 22:45:35,925 INFO L226 Difference]: Without dead ends: 221 [2021-08-30 22:45:35,926 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 167.87ms TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2021-08-30 22:45:35,927 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 420 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 383.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.95ms SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 465.59ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:35,927 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [420 Valid, 0 Invalid, 786 Unknown, 0 Unchecked, 3.95ms Time], IncrementalHoareTripleChecker [62 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 465.59ms Time] [2021-08-30 22:45:35,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-08-30 22:45:35,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 160. [2021-08-30 22:45:35,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 1.2075471698113207) internal successors, (192), 159 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:35,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 192 transitions. [2021-08-30 22:45:35,942 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 192 transitions. Word has length 58 [2021-08-30 22:45:35,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:35,942 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 192 transitions. [2021-08-30 22:45:35,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:35,943 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 192 transitions. [2021-08-30 22:45:35,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-08-30 22:45:35,946 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:35,946 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:35,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-30 22:45:36,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:36,147 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-08-30 22:45:36,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:36,148 INFO L82 PathProgramCache]: Analyzing trace with hash 25170625, now seen corresponding path program 1 times [2021-08-30 22:45:36,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:36,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150495609] [2021-08-30 22:45:36,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:36,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:36,242 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-08-30 22:45:36,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:36,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150495609] [2021-08-30 22:45:36,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150495609] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:36,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:45:36,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-30 22:45:36,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186293732] [2021-08-30 22:45:36,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 22:45:36,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:36,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 22:45:36,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 22:45:36,244 INFO L87 Difference]: Start difference. First operand 160 states and 192 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:36,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:36,654 INFO L93 Difference]: Finished difference Result 595 states and 717 transitions. [2021-08-30 22:45:36,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 22:45:36,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-08-30 22:45:36,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:36,656 INFO L225 Difference]: With dead ends: 595 [2021-08-30 22:45:36,656 INFO L226 Difference]: Without dead ends: 462 [2021-08-30 22:45:36,657 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 30.44ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-30 22:45:36,657 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 189 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 296.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.82ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 371.97ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:36,657 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 0 Invalid, 579 Unknown, 0 Unchecked, 1.82ms Time], IncrementalHoareTripleChecker [3 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 371.97ms Time] [2021-08-30 22:45:36,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-08-30 22:45:36,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 160. [2021-08-30 22:45:36,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 1.2075471698113207) internal successors, (192), 159 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:36,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 192 transitions. [2021-08-30 22:45:36,663 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 192 transitions. Word has length 80 [2021-08-30 22:45:36,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:36,664 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 192 transitions. [2021-08-30 22:45:36,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:36,664 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 192 transitions. [2021-08-30 22:45:36,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-08-30 22:45:36,664 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:36,665 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:36,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-30 22:45:36,665 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-08-30 22:45:36,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:36,666 INFO L82 PathProgramCache]: Analyzing trace with hash -705708941, now seen corresponding path program 1 times [2021-08-30 22:45:36,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:36,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817383471] [2021-08-30 22:45:36,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:36,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:36,731 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-08-30 22:45:36,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:36,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817383471] [2021-08-30 22:45:36,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817383471] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:36,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:45:36,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-30 22:45:36,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99726486] [2021-08-30 22:45:36,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 22:45:36,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:36,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 22:45:36,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-30 22:45:36,734 INFO L87 Difference]: Start difference. First operand 160 states and 192 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:36,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:36,934 INFO L93 Difference]: Finished difference Result 465 states and 551 transitions. [2021-08-30 22:45:36,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 22:45:36,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-08-30 22:45:36,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:36,935 INFO L225 Difference]: With dead ends: 465 [2021-08-30 22:45:36,935 INFO L226 Difference]: Without dead ends: 332 [2021-08-30 22:45:36,936 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 16.68ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-30 22:45:36,936 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 174 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 142.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.32ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 177.08ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:36,936 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 0 Invalid, 324 Unknown, 0 Unchecked, 1.32ms Time], IncrementalHoareTripleChecker [18 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 177.08ms Time] [2021-08-30 22:45:36,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2021-08-30 22:45:36,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 246. [2021-08-30 22:45:36,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 245 states have (on average 1.1959183673469387) internal successors, (293), 245 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:36,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 293 transitions. [2021-08-30 22:45:36,944 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 293 transitions. Word has length 83 [2021-08-30 22:45:36,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:36,944 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 293 transitions. [2021-08-30 22:45:36,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:36,945 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 293 transitions. [2021-08-30 22:45:36,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-08-30 22:45:36,945 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:36,945 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:36,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-30 22:45:36,946 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-08-30 22:45:36,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:36,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1924468269, now seen corresponding path program 1 times [2021-08-30 22:45:36,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:36,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943271336] [2021-08-30 22:45:36,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:36,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:36,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:37,035 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-08-30 22:45:37,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:37,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943271336] [2021-08-30 22:45:37,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943271336] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:37,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:45:37,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-30 22:45:37,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100735103] [2021-08-30 22:45:37,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-30 22:45:37,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:37,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-30 22:45:37,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-30 22:45:37,037 INFO L87 Difference]: Start difference. First operand 246 states and 293 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:37,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:37,673 INFO L93 Difference]: Finished difference Result 1199 states and 1426 transitions. [2021-08-30 22:45:37,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-30 22:45:37,674 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-08-30 22:45:37,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:37,678 INFO L225 Difference]: With dead ends: 1199 [2021-08-30 22:45:37,678 INFO L226 Difference]: Without dead ends: 980 [2021-08-30 22:45:37,678 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 46.61ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-08-30 22:45:37,679 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 283 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 469.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.84ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 572.97ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:37,679 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 0 Invalid, 821 Unknown, 0 Unchecked, 2.84ms Time], IncrementalHoareTripleChecker [5 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 572.97ms Time] [2021-08-30 22:45:37,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2021-08-30 22:45:37,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 246. [2021-08-30 22:45:37,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 245 states have (on average 1.1959183673469387) internal successors, (293), 245 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:37,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 293 transitions. [2021-08-30 22:45:37,691 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 293 transitions. Word has length 83 [2021-08-30 22:45:37,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:37,691 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 293 transitions. [2021-08-30 22:45:37,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:37,691 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 293 transitions. [2021-08-30 22:45:37,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-08-30 22:45:37,692 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:37,692 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:37,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-30 22:45:37,692 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-08-30 22:45:37,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:37,693 INFO L82 PathProgramCache]: Analyzing trace with hash 335021134, now seen corresponding path program 1 times [2021-08-30 22:45:37,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:37,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444248258] [2021-08-30 22:45:37,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:37,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:37,794 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-08-30 22:45:37,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:37,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444248258] [2021-08-30 22:45:37,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444248258] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:45:37,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281484275] [2021-08-30 22:45:37,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:37,795 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:37,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:45:37,796 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 22:45:37,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-30 22:45:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:37,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-30 22:45:37,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:45:38,121 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-08-30 22:45:38,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 22:45:38,380 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 55 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-08-30 22:45:38,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281484275] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 22:45:38,380 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-30 22:45:38,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6] total 12 [2021-08-30 22:45:38,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493499948] [2021-08-30 22:45:38,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-30 22:45:38,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:38,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-30 22:45:38,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2021-08-30 22:45:38,382 INFO L87 Difference]: Start difference. First operand 246 states and 293 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:38,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:38,966 INFO L93 Difference]: Finished difference Result 1117 states and 1347 transitions. [2021-08-30 22:45:38,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-30 22:45:38,967 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-08-30 22:45:38,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:38,970 INFO L225 Difference]: With dead ends: 1117 [2021-08-30 22:45:38,971 INFO L226 Difference]: Without dead ends: 898 [2021-08-30 22:45:38,971 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 76.94ms TimeCoverageRelationStatistics Valid=76, Invalid=106, Unknown=0, NotChecked=0, Total=182 [2021-08-30 22:45:38,973 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 439 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 418.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.45ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 515.90ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:38,973 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 0 Invalid, 774 Unknown, 0 Unchecked, 4.45ms Time], IncrementalHoareTripleChecker [34 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 515.90ms Time] [2021-08-30 22:45:38,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2021-08-30 22:45:39,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 715. [2021-08-30 22:45:39,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 714 states have (on average 1.2170868347338935) internal successors, (869), 714 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:39,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 869 transitions. [2021-08-30 22:45:39,006 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 869 transitions. Word has length 83 [2021-08-30 22:45:39,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:39,006 INFO L470 AbstractCegarLoop]: Abstraction has 715 states and 869 transitions. [2021-08-30 22:45:39,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:39,006 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 869 transitions. [2021-08-30 22:45:39,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-08-30 22:45:39,007 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:39,008 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:39,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-30 22:45:39,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-08-30 22:45:39,223 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-08-30 22:45:39,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:39,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1183041321, now seen corresponding path program 1 times [2021-08-30 22:45:39,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:39,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597719378] [2021-08-30 22:45:39,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:39,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:39,327 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-08-30 22:45:39,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:39,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597719378] [2021-08-30 22:45:39,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597719378] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:39,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:45:39,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-30 22:45:39,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683657995] [2021-08-30 22:45:39,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-30 22:45:39,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:39,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-30 22:45:39,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-30 22:45:39,330 INFO L87 Difference]: Start difference. First operand 715 states and 869 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:40,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:40,190 INFO L93 Difference]: Finished difference Result 1798 states and 2166 transitions. [2021-08-30 22:45:40,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-30 22:45:40,191 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-08-30 22:45:40,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:40,196 INFO L225 Difference]: With dead ends: 1798 [2021-08-30 22:45:40,196 INFO L226 Difference]: Without dead ends: 1521 [2021-08-30 22:45:40,197 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 73.15ms TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-30 22:45:40,198 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 375 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 625.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.57ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 766.42ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:40,199 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 0 Invalid, 1226 Unknown, 0 Unchecked, 4.57ms Time], IncrementalHoareTripleChecker [7 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 766.42ms Time] [2021-08-30 22:45:40,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2021-08-30 22:45:40,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 711. [2021-08-30 22:45:40,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 710 states have (on average 1.2183098591549295) internal successors, (865), 710 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:40,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 865 transitions. [2021-08-30 22:45:40,229 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 865 transitions. Word has length 85 [2021-08-30 22:45:40,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:40,229 INFO L470 AbstractCegarLoop]: Abstraction has 711 states and 865 transitions. [2021-08-30 22:45:40,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:40,229 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 865 transitions. [2021-08-30 22:45:40,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-08-30 22:45:40,230 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:40,230 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:40,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-30 22:45:40,231 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-08-30 22:45:40,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:40,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1767062975, now seen corresponding path program 1 times [2021-08-30 22:45:40,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:40,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780291390] [2021-08-30 22:45:40,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:40,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:40,353 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-08-30 22:45:40,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:40,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780291390] [2021-08-30 22:45:40,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780291390] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:45:40,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783628863] [2021-08-30 22:45:40,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:40,354 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:40,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:45:40,355 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 22:45:40,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-30 22:45:40,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:40,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 19 conjunts are in the unsatisfiable core [2021-08-30 22:45:40,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:45:40,839 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 61 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-08-30 22:45:40,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 22:45:41,101 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 22 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-08-30 22:45:41,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783628863] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 22:45:41,102 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-30 22:45:41,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 16 [2021-08-30 22:45:41,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264688495] [2021-08-30 22:45:41,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-30 22:45:41,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:41,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-30 22:45:41,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-08-30 22:45:41,103 INFO L87 Difference]: Start difference. First operand 711 states and 865 transitions. Second operand has 16 states, 16 states have (on average 11.25) internal successors, (180), 16 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:45,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:45,361 INFO L93 Difference]: Finished difference Result 2241 states and 2612 transitions. [2021-08-30 22:45:45,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-08-30 22:45:45,362 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.25) internal successors, (180), 16 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-08-30 22:45:45,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:45,366 INFO L225 Difference]: With dead ends: 2241 [2021-08-30 22:45:45,366 INFO L226 Difference]: Without dead ends: 1547 [2021-08-30 22:45:45,370 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 170 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2913 ImplicationChecksByTransitivity, 1669.43ms TimeCoverageRelationStatistics Valid=1437, Invalid=7493, Unknown=0, NotChecked=0, Total=8930 [2021-08-30 22:45:45,371 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 1154 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 4551 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2050.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.76ms SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 4551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2551.95ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:45,371 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [1154 Valid, 0 Invalid, 4761 Unknown, 0 Unchecked, 16.76ms Time], IncrementalHoareTripleChecker [210 Valid, 4551 Invalid, 0 Unknown, 0 Unchecked, 2551.95ms Time] [2021-08-30 22:45:45,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2021-08-30 22:45:45,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 798. [2021-08-30 22:45:45,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.1882057716436638) internal successors, (947), 797 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:45,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 947 transitions. [2021-08-30 22:45:45,402 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 947 transitions. Word has length 89 [2021-08-30 22:45:45,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:45,402 INFO L470 AbstractCegarLoop]: Abstraction has 798 states and 947 transitions. [2021-08-30 22:45:45,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.25) internal successors, (180), 16 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:45,403 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 947 transitions. [2021-08-30 22:45:45,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-08-30 22:45:45,404 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:45,404 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:45,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-30 22:45:45,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-08-30 22:45:45,625 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-08-30 22:45:45,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:45,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1720526203, now seen corresponding path program 1 times [2021-08-30 22:45:45,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:45,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111095390] [2021-08-30 22:45:45,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:45,626 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:45,738 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 56 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-08-30 22:45:45,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:45,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111095390] [2021-08-30 22:45:45,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111095390] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:45:45,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887429836] [2021-08-30 22:45:45,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:45,739 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:45,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:45:45,740 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 22:45:45,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-30 22:45:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:45,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 23 conjunts are in the unsatisfiable core [2021-08-30 22:45:45,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:45:46,285 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 44 proven. 28 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-08-30 22:45:46,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 22:45:46,635 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-08-30 22:45:46,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887429836] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 22:45:46,636 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-30 22:45:46,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 18 [2021-08-30 22:45:46,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528527499] [2021-08-30 22:45:46,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-30 22:45:46,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:46,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-30 22:45:46,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2021-08-30 22:45:46,637 INFO L87 Difference]: Start difference. First operand 798 states and 947 transitions. Second operand has 18 states, 18 states have (on average 13.222222222222221) internal successors, (238), 18 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:47,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:47,962 INFO L93 Difference]: Finished difference Result 3110 states and 3525 transitions. [2021-08-30 22:45:47,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-30 22:45:47,963 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 13.222222222222221) internal successors, (238), 18 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-08-30 22:45:47,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:47,968 INFO L225 Difference]: With dead ends: 3110 [2021-08-30 22:45:47,968 INFO L226 Difference]: Without dead ends: 1667 [2021-08-30 22:45:47,971 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 427.03ms TimeCoverageRelationStatistics Valid=356, Invalid=976, Unknown=0, NotChecked=0, Total=1332 [2021-08-30 22:45:47,972 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 930 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 1730 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 712.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.97ms SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 1730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 919.95ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:47,972 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [930 Valid, 0 Invalid, 1859 Unknown, 0 Unchecked, 5.97ms Time], IncrementalHoareTripleChecker [129 Valid, 1730 Invalid, 0 Unknown, 0 Unchecked, 919.95ms Time] [2021-08-30 22:45:47,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2021-08-30 22:45:48,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 551. [2021-08-30 22:45:48,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 550 states have (on average 1.2254545454545454) internal successors, (674), 550 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:48,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 674 transitions. [2021-08-30 22:45:48,013 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 674 transitions. Word has length 91 [2021-08-30 22:45:48,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:48,013 INFO L470 AbstractCegarLoop]: Abstraction has 551 states and 674 transitions. [2021-08-30 22:45:48,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 13.222222222222221) internal successors, (238), 18 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:48,014 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 674 transitions. [2021-08-30 22:45:48,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-08-30 22:45:48,015 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:48,015 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:48,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-30 22:45:48,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:48,225 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-08-30 22:45:48,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:48,225 INFO L82 PathProgramCache]: Analyzing trace with hash -717591297, now seen corresponding path program 1 times [2021-08-30 22:45:48,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:48,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428204999] [2021-08-30 22:45:48,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:48,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:48,299 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 72 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-08-30 22:45:48,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:48,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428204999] [2021-08-30 22:45:48,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428204999] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:45:48,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265535549] [2021-08-30 22:45:48,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:48,301 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:48,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:45:48,312 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 22:45:48,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-30 22:45:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:48,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 22:45:48,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:45:48,555 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 69 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-30 22:45:48,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 22:45:48,787 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 68 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-30 22:45:48,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265535549] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 22:45:48,788 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-30 22:45:48,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2021-08-30 22:45:48,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300474326] [2021-08-30 22:45:48,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-30 22:45:48,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:48,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-30 22:45:48,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-08-30 22:45:48,790 INFO L87 Difference]: Start difference. First operand 551 states and 674 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:49,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:49,499 INFO L93 Difference]: Finished difference Result 1774 states and 2200 transitions. [2021-08-30 22:45:49,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-30 22:45:49,500 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-08-30 22:45:49,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:49,502 INFO L225 Difference]: With dead ends: 1774 [2021-08-30 22:45:49,502 INFO L226 Difference]: Without dead ends: 790 [2021-08-30 22:45:49,504 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 201 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 145.78ms TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2021-08-30 22:45:49,504 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 297 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 450.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.80ms SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 565.29ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:49,505 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 0 Invalid, 1047 Unknown, 0 Unchecked, 1.80ms Time], IncrementalHoareTripleChecker [71 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 565.29ms Time] [2021-08-30 22:45:49,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2021-08-30 22:45:49,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 664. [2021-08-30 22:45:49,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 663 states have (on average 1.2337858220211162) internal successors, (818), 663 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:49,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 818 transitions. [2021-08-30 22:45:49,523 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 818 transitions. Word has length 97 [2021-08-30 22:45:49,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:49,530 INFO L470 AbstractCegarLoop]: Abstraction has 664 states and 818 transitions. [2021-08-30 22:45:49,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:49,530 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 818 transitions. [2021-08-30 22:45:49,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-08-30 22:45:49,531 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:49,531 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:49,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-30 22:45:49,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-08-30 22:45:49,755 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-08-30 22:45:49,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:49,756 INFO L82 PathProgramCache]: Analyzing trace with hash 840122728, now seen corresponding path program 1 times [2021-08-30 22:45:49,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:49,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650948076] [2021-08-30 22:45:49,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:49,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 22:45:49,790 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-30 22:45:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 22:45:49,845 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-30 22:45:49,845 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-30 22:45:49,846 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 38 remaining) [2021-08-30 22:45:49,847 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 38 remaining) [2021-08-30 22:45:49,847 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 38 remaining) [2021-08-30 22:45:49,848 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 38 remaining) [2021-08-30 22:45:49,848 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 38 remaining) [2021-08-30 22:45:49,848 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 38 remaining) [2021-08-30 22:45:49,848 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 38 remaining) [2021-08-30 22:45:49,848 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 38 remaining) [2021-08-30 22:45:49,848 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 38 remaining) [2021-08-30 22:45:49,848 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 38 remaining) [2021-08-30 22:45:49,849 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 38 remaining) [2021-08-30 22:45:49,849 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 38 remaining) [2021-08-30 22:45:49,849 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 38 remaining) [2021-08-30 22:45:49,849 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 38 remaining) [2021-08-30 22:45:49,849 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 38 remaining) [2021-08-30 22:45:49,849 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 38 remaining) [2021-08-30 22:45:49,849 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 38 remaining) [2021-08-30 22:45:49,850 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 38 remaining) [2021-08-30 22:45:49,850 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 38 remaining) [2021-08-30 22:45:49,850 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 38 remaining) [2021-08-30 22:45:49,850 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 38 remaining) [2021-08-30 22:45:49,850 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 38 remaining) [2021-08-30 22:45:49,850 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 38 remaining) [2021-08-30 22:45:49,850 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 38 remaining) [2021-08-30 22:45:49,850 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 38 remaining) [2021-08-30 22:45:49,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 38 remaining) [2021-08-30 22:45:49,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 38 remaining) [2021-08-30 22:45:49,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 38 remaining) [2021-08-30 22:45:49,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 38 remaining) [2021-08-30 22:45:49,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 38 remaining) [2021-08-30 22:45:49,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 38 remaining) [2021-08-30 22:45:49,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 38 remaining) [2021-08-30 22:45:49,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 38 remaining) [2021-08-30 22:45:49,852 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 38 remaining) [2021-08-30 22:45:49,852 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 38 remaining) [2021-08-30 22:45:49,852 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 38 remaining) [2021-08-30 22:45:49,852 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 38 remaining) [2021-08-30 22:45:49,852 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 38 remaining) [2021-08-30 22:45:49,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-30 22:45:49,858 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 22:45:49,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 10:45:49 BoogieIcfgContainer [2021-08-30 22:45:49,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 22:45:49,950 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 22:45:49,950 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 22:45:49,951 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 22:45:49,951 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:45:29" (3/4) ... [2021-08-30 22:45:49,953 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-30 22:45:49,954 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 22:45:49,954 INFO L158 Benchmark]: Toolchain (without parser) took 20680.17ms. Allocated memory was 50.3MB in the beginning and 130.0MB in the end (delta: 79.7MB). Free memory was 28.2MB in the beginning and 104.9MB in the end (delta: -76.7MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2021-08-30 22:45:49,954 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 50.3MB. Free memory is still 32.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:45:49,955 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.21ms. Allocated memory is still 50.3MB. Free memory was 28.0MB in the beginning and 28.3MB in the end (delta: -248.3kB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2021-08-30 22:45:49,955 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.87ms. Allocated memory is still 50.3MB. Free memory was 28.3MB in the beginning and 26.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 22:45:49,955 INFO L158 Benchmark]: Boogie Preprocessor took 37.72ms. Allocated memory is still 50.3MB. Free memory was 26.1MB in the beginning and 24.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 22:45:49,956 INFO L158 Benchmark]: RCFGBuilder took 320.54ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 24.8MB in the beginning and 34.8MB in the end (delta: -10.0MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2021-08-30 22:45:49,956 INFO L158 Benchmark]: TraceAbstraction took 20006.30ms. Allocated memory was 60.8MB in the beginning and 130.0MB in the end (delta: 69.2MB). Free memory was 34.5MB in the beginning and 104.9MB in the end (delta: -70.4MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2021-08-30 22:45:49,956 INFO L158 Benchmark]: Witness Printer took 3.48ms. Allocated memory is still 130.0MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:45:49,958 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 50.3MB. Free memory is still 32.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.21ms. Allocated memory is still 50.3MB. Free memory was 28.0MB in the beginning and 28.3MB in the end (delta: -248.3kB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.87ms. Allocated memory is still 50.3MB. Free memory was 28.3MB in the beginning and 26.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.72ms. Allocated memory is still 50.3MB. Free memory was 26.1MB in the beginning and 24.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 320.54ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 24.8MB in the beginning and 34.8MB in the end (delta: -10.0MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * TraceAbstraction took 20006.30ms. Allocated memory was 60.8MB in the beginning and 130.0MB in the end (delta: 69.2MB). Free memory was 34.5MB in the beginning and 104.9MB in the end (delta: -70.4MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. * Witness Printer took 3.48ms. Allocated memory is still 130.0MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 88. Possible FailurePath: [L116] unsigned int a, b, r; [L118] b = __VERIFIER_nondet_uint() [L120] a = 234770789 [L34] unsigned char a0, a1, a2, a3; [L35] unsigned char b0, b1, b2, b3; [L36] unsigned char r0, r1, r2, r3; [L37] unsigned short carry; [L38] unsigned short partial_sum; [L39] unsigned int r; [L40] unsigned char i; [L41] unsigned char na, nb; [L42] a0 = a [L43] a1 = a >> 8 [L44] a2 = a >> 16U [L45] a3 = a >> 24U [L46] b0 = b [L47] b1 = b >> 8U [L48] b2 = b >> 16U [L49] b3 = b >> 24U [L50] na = (unsigned char)4 [L51] COND FALSE !(a3 == (unsigned char)0) [L60] nb = (unsigned char)4 [L61] COND FALSE !(b3 == (unsigned char)0) [L70] carry = (unsigned short)0 [L71] i = (unsigned char)0 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND TRUE i < na [L76] COND TRUE i == (unsigned char)0 [L76] EXPR partial_sum + a0 [L76] partial_sum = partial_sum + a0 [L77] COND FALSE !(i == (unsigned char)1) [L78] COND FALSE !(i == (unsigned char)2) [L79] COND FALSE !(i == (unsigned char)3) [L81] COND TRUE i < nb [L82] COND TRUE i == (unsigned char)0 [L82] EXPR partial_sum + b0 [L82] partial_sum = partial_sum + b0 [L83] COND FALSE !(i == (unsigned char)1) [L84] COND FALSE !(i == (unsigned char)2) [L85] COND FALSE !(i == (unsigned char)3) [L87] COND TRUE partial_sum > ((unsigned char)255) [L88] partial_sum = partial_sum & ((unsigned char)255) [L89] carry = (unsigned short)1 [L91] COND TRUE i == (unsigned char)0 [L91] r0 = (unsigned char)partial_sum [L92] COND FALSE !(i == (unsigned char)1) [L93] COND FALSE !(i == (unsigned char)2) [L94] COND FALSE !(i == (unsigned char)3) [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND TRUE i < na [L76] COND FALSE !(i == (unsigned char)0) [L77] COND TRUE i == (unsigned char)1 [L77] EXPR partial_sum + a1 [L77] partial_sum = partial_sum + a1 [L78] COND FALSE !(i == (unsigned char)2) [L79] COND FALSE !(i == (unsigned char)3) [L81] COND TRUE i < nb [L82] COND FALSE !(i == (unsigned char)0) [L83] COND TRUE i == (unsigned char)1 [L83] EXPR partial_sum + b1 [L83] partial_sum = partial_sum + b1 [L84] COND FALSE !(i == (unsigned char)2) [L85] COND FALSE !(i == (unsigned char)3) [L87] COND TRUE partial_sum > ((unsigned char)255) [L88] partial_sum = partial_sum & ((unsigned char)255) [L89] carry = (unsigned short)1 [L91] COND FALSE !(i == (unsigned char)0) [L92] COND TRUE i == (unsigned char)1 [L92] r1 = (unsigned char)partial_sum [L93] COND FALSE !(i == (unsigned char)2) [L94] COND FALSE !(i == (unsigned char)3) [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND TRUE i < na [L76] COND FALSE !(i == (unsigned char)0) [L77] COND FALSE !(i == (unsigned char)1) [L78] COND TRUE i == (unsigned char)2 [L78] EXPR partial_sum + a2 [L78] partial_sum = partial_sum + a2 [L79] COND FALSE !(i == (unsigned char)3) [L81] COND TRUE i < nb [L82] COND FALSE !(i == (unsigned char)0) [L83] COND FALSE !(i == (unsigned char)1) [L84] COND TRUE i == (unsigned char)2 [L84] EXPR partial_sum + b2 [L84] partial_sum = partial_sum + b2 [L85] COND FALSE !(i == (unsigned char)3) [L87] COND TRUE partial_sum > ((unsigned char)255) [L88] partial_sum = partial_sum & ((unsigned char)255) [L89] carry = (unsigned short)1 [L91] COND FALSE !(i == (unsigned char)0) [L92] COND FALSE !(i == (unsigned char)1) [L93] COND TRUE i == (unsigned char)2 [L93] r2 = (unsigned char)partial_sum [L94] COND FALSE !(i == (unsigned char)3) [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND TRUE i < na [L76] COND FALSE !(i == (unsigned char)0) [L77] COND FALSE !(i == (unsigned char)1) [L78] COND FALSE !(i == (unsigned char)2) [L79] COND TRUE i == (unsigned char)3 [L79] EXPR partial_sum + a3 [L79] partial_sum = partial_sum + a3 [L81] COND TRUE i < nb [L82] COND FALSE !(i == (unsigned char)0) [L83] COND FALSE !(i == (unsigned char)1) [L84] COND FALSE !(i == (unsigned char)2) [L85] COND TRUE i == (unsigned char)3 [L85] EXPR partial_sum + b3 [L85] partial_sum = partial_sum + b3 [L87] COND FALSE !(partial_sum > ((unsigned char)255)) [L91] COND FALSE !(i == (unsigned char)0) [L92] COND FALSE !(i == (unsigned char)1) [L93] COND FALSE !(i == (unsigned char)2) [L94] COND TRUE i == (unsigned char)3 [L94] r3 = (unsigned char)partial_sum [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND FALSE !((i < na) || (i < nb) || (carry != (unsigned short)0)) [L99] COND FALSE !(i < (unsigned char)4) [L108] r1 << 8U [L108] r2 << 16U [L108] r3 << 24U - UnprovableResult [Line: 52]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 76]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 76]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 79]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 79]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 82]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 82]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 83]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 83]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 84]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 84]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 96]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 96]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 105]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 105]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 114 locations, 38 error locations. Started 1 CEGAR loops. OverallTime: 19851.47ms, OverallIterations: 19, TraceHistogramMax: 4, EmptinessCheckTime: 43.71ms, AutomataDifference: 11433.87ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 12.97ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4759 SdHoareTripleChecker+Valid, 8499.53ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4759 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 6776.46ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 85 IncrementalHoareTripleChecker+Unchecked, 5484 mSDsCounter, 617 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13597 IncrementalHoareTripleChecker+Invalid, 14299 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 617 mSolverCounterUnsat, 0 mSDtfsCounter, 13597 mSolverCounterSat, 55.78ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1203 GetRequests, 967 SyntacticMatches, 9 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3377 ImplicationChecksByTransitivity, 2793.84ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=798occurred in iteration=16, InterpolantAutomatonStates: 210, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 269.42ms AutomataMinimizationTime, 18 MinimizatonAttempts, 4379 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 99.58ms SsaConstructionTime, 1034.26ms SatisfiabilityAnalysisTime, 4668.50ms InterpolantComputationTime, 1624 NumberOfCodeBlocks, 1624 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 1910 ConstructedInterpolants, 2 QuantifiedInterpolants, 9480 SizeOfPredicates, 29 NumberOfNonLiveVariables, 1304 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 31 InterpolantComputations, 13 PerfectInterpolantSequences, 1345/1573 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 could not prove your program: unable to determine feasibility of some traces [2021-08-30 22:45:49,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...