./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/jain_5-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 791161d1 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/jain_5-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce25b6bd0efa145a105c85604d85a015d6e6bffce3769a218e2fa9a5cf656dc9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 13:33:19,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 13:33:19,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 13:33:20,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 13:33:20,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 13:33:20,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 13:33:20,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 13:33:20,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 13:33:20,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 13:33:20,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 13:33:20,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 13:33:20,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 13:33:20,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 13:33:20,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 13:33:20,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 13:33:20,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 13:33:20,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 13:33:20,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 13:33:20,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 13:33:20,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 13:33:20,047 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 13:33:20,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 13:33:20,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 13:33:20,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 13:33:20,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 13:33:20,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 13:33:20,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 13:33:20,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 13:33:20,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 13:33:20,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 13:33:20,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 13:33:20,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 13:33:20,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 13:33:20,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 13:33:20,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 13:33:20,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 13:33:20,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 13:33:20,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 13:33:20,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 13:33:20,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 13:33:20,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 13:33:20,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 13:33:20,072 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-23 13:33:20,093 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 13:33:20,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 13:33:20,094 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 13:33:20,094 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 13:33:20,095 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 13:33:20,095 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 13:33:20,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 13:33:20,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 13:33:20,096 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 13:33:20,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 13:33:20,096 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 13:33:20,097 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 13:33:20,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 13:33:20,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 13:33:20,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 13:33:20,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 13:33:20,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 13:33:20,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 13:33:20,098 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-23 13:33:20,098 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 13:33:20,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 13:33:20,098 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 13:33:20,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 13:33:20,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 13:33:20,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 13:33:20,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 13:33:20,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:33:20,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 13:33:20,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 13:33:20,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 13:33:20,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 13:33:20,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 13:33:20,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 13:33:20,101 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce25b6bd0efa145a105c85604d85a015d6e6bffce3769a218e2fa9a5cf656dc9 [2022-07-23 13:33:20,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 13:33:20,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 13:33:20,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 13:33:20,347 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 13:33:20,348 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 13:33:20,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/jain_5-1.c [2022-07-23 13:33:20,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6222547cf/979f30ab980449fdbb483cdad1697101/FLAG7ce38fa3a [2022-07-23 13:33:20,782 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 13:33:20,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_5-1.c [2022-07-23 13:33:20,788 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6222547cf/979f30ab980449fdbb483cdad1697101/FLAG7ce38fa3a [2022-07-23 13:33:20,799 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6222547cf/979f30ab980449fdbb483cdad1697101 [2022-07-23 13:33:20,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 13:33:20,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 13:33:20,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 13:33:20,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 13:33:20,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 13:33:20,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:33:20" (1/1) ... [2022-07-23 13:33:20,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12252ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:20, skipping insertion in model container [2022-07-23 13:33:20,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:33:20" (1/1) ... [2022-07-23 13:33:20,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 13:33:20,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 13:33:21,016 WARN L230 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/jain_5-1.c[665,678] [2022-07-23 13:33:21,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:33:21,037 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 13:33:21,054 WARN L230 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/jain_5-1.c[665,678] [2022-07-23 13:33:21,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:33:21,069 INFO L208 MainTranslator]: Completed translation [2022-07-23 13:33:21,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:21 WrapperNode [2022-07-23 13:33:21,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 13:33:21,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 13:33:21,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 13:33:21,072 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 13:33:21,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:21" (1/1) ... [2022-07-23 13:33:21,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:21" (1/1) ... [2022-07-23 13:33:21,105 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 33 [2022-07-23 13:33:21,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 13:33:21,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 13:33:21,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 13:33:21,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 13:33:21,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:21" (1/1) ... [2022-07-23 13:33:21,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:21" (1/1) ... [2022-07-23 13:33:21,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:21" (1/1) ... [2022-07-23 13:33:21,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:21" (1/1) ... [2022-07-23 13:33:21,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:21" (1/1) ... [2022-07-23 13:33:21,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:21" (1/1) ... [2022-07-23 13:33:21,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:21" (1/1) ... [2022-07-23 13:33:21,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 13:33:21,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 13:33:21,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 13:33:21,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 13:33:21,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:21" (1/1) ... [2022-07-23 13:33:21,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:33:21,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:33:21,149 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) [2022-07-23 13:33:21,151 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 [2022-07-23 13:33:21,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 13:33:21,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 13:33:21,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 13:33:21,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 13:33:21,224 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 13:33:21,225 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 13:33:21,306 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 13:33:21,311 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 13:33:21,311 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 13:33:21,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:33:21 BoogieIcfgContainer [2022-07-23 13:33:21,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 13:33:21,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 13:33:21,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 13:33:21,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 13:33:21,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:33:20" (1/3) ... [2022-07-23 13:33:21,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54fb869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:33:21, skipping insertion in model container [2022-07-23 13:33:21,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:33:21" (2/3) ... [2022-07-23 13:33:21,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54fb869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:33:21, skipping insertion in model container [2022-07-23 13:33:21,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:33:21" (3/3) ... [2022-07-23 13:33:21,325 INFO L111 eAbstractionObserver]: Analyzing ICFG jain_5-1.c [2022-07-23 13:33:21,336 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 13:33:21,336 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-23 13:33:21,390 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 13:33:21,400 INFO L357 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, mAutomataTypeConcurrency=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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@41823ea, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@338cf586 [2022-07-23 13:33:21,401 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-23 13:33:21,404 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 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) [2022-07-23 13:33:21,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-23 13:33:21,409 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:33:21,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-23 13:33:21,410 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-23 13:33:21,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:33:21,414 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-07-23 13:33:21,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:33:21,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413745585] [2022-07-23 13:33:21,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:33:21,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:33:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:33:21,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:21,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:33:21,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413745585] [2022-07-23 13:33:21,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413745585] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:33:21,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:33:21,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 13:33:21,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964527246] [2022-07-23 13:33:21,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:33:21,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:33:21,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:33:21,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:33:21,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:33:21,635 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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) [2022-07-23 13:33:21,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:33:21,690 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2022-07-23 13:33:21,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:33:21,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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 [2022-07-23 13:33:21,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:33:21,710 INFO L225 Difference]: With dead ends: 34 [2022-07-23 13:33:21,711 INFO L226 Difference]: Without dead ends: 17 [2022-07-23 13:33:21,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:33:21,716 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:33:21,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 16 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:33:21,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-07-23 13:33:21,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-07-23 13:33:21,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 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) [2022-07-23 13:33:21,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-07-23 13:33:21,783 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 4 [2022-07-23 13:33:21,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:33:21,783 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-07-23 13:33:21,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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) [2022-07-23 13:33:21,784 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-07-23 13:33:21,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-23 13:33:21,784 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:33:21,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-23 13:33:21,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 13:33:21,800 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-23 13:33:21,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:33:21,801 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2022-07-23 13:33:21,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:33:21,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962219487] [2022-07-23 13:33:21,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:33:21,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:33:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:33:21,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:21,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:33:21,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962219487] [2022-07-23 13:33:21,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962219487] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:33:21,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:33:21,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 13:33:21,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628927896] [2022-07-23 13:33:21,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:33:21,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:33:21,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:33:21,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:33:21,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:33:21,854 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-07-23 13:33:21,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:33:21,889 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-07-23 13:33:21,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:33:21,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-07-23 13:33:21,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:33:21,891 INFO L225 Difference]: With dead ends: 17 [2022-07-23 13:33:21,891 INFO L226 Difference]: Without dead ends: 16 [2022-07-23 13:33:21,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:33:21,893 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:33:21,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:33:21,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-07-23 13:33:21,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-07-23 13:33:21,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 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) [2022-07-23 13:33:21,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-07-23 13:33:21,902 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 5 [2022-07-23 13:33:21,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:33:21,902 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-07-23 13:33:21,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-07-23 13:33:21,903 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-07-23 13:33:21,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-23 13:33:21,904 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:33:21,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-23 13:33:21,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 13:33:21,904 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-23 13:33:21,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:33:21,905 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2022-07-23 13:33:21,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:33:21,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099607133] [2022-07-23 13:33:21,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:33:21,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:33:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:33:21,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:21,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:33:21,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099607133] [2022-07-23 13:33:21,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099607133] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:33:21,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:33:21,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 13:33:21,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765669141] [2022-07-23 13:33:21,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:33:21,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:33:21,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:33:21,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:33:21,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:33:21,932 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-07-23 13:33:21,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:33:21,956 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-07-23 13:33:21,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:33:21,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-07-23 13:33:21,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:33:21,959 INFO L225 Difference]: With dead ends: 19 [2022-07-23 13:33:21,959 INFO L226 Difference]: Without dead ends: 18 [2022-07-23 13:33:21,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:33:21,967 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:33:21,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:33:21,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-07-23 13:33:21,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-07-23 13:33:21,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 states have internal predecessors, (17), 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) [2022-07-23 13:33:21,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-07-23 13:33:21,978 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 6 [2022-07-23 13:33:21,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:33:21,978 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-07-23 13:33:21,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-07-23 13:33:21,979 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-07-23 13:33:21,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-23 13:33:21,979 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:33:21,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:33:21,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 13:33:21,980 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-23 13:33:21,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:33:21,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times [2022-07-23 13:33:21,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:33:21,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635167673] [2022-07-23 13:33:21,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:33:21,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:33:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:33:22,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:22,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:33:22,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635167673] [2022-07-23 13:33:22,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635167673] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:33:22,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:33:22,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 13:33:22,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591461403] [2022-07-23 13:33:22,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:33:22,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:33:22,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:33:22,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:33:22,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:33:22,032 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-23 13:33:22,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:33:22,047 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-07-23 13:33:22,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:33:22,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-07-23 13:33:22,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:33:22,048 INFO L225 Difference]: With dead ends: 17 [2022-07-23 13:33:22,048 INFO L226 Difference]: Without dead ends: 16 [2022-07-23 13:33:22,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:33:22,049 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:33:22,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:33:22,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-07-23 13:33:22,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-07-23 13:33:22,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 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) [2022-07-23 13:33:22,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-07-23 13:33:22,055 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2022-07-23 13:33:22,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:33:22,056 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-07-23 13:33:22,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-23 13:33:22,056 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-07-23 13:33:22,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-23 13:33:22,057 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:33:22,057 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:33:22,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 13:33:22,057 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-23 13:33:22,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:33:22,058 INFO L85 PathProgramCache]: Analyzing trace with hash -851677744, now seen corresponding path program 1 times [2022-07-23 13:33:22,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:33:22,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286613659] [2022-07-23 13:33:22,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:33:22,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:33:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:33:22,138 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:22,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:33:22,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286613659] [2022-07-23 13:33:22,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286613659] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:33:22,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998386460] [2022-07-23 13:33:22,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:33:22,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:33:22,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:33:22,144 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) [2022-07-23 13:33:22,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 13:33:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:33:22,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 13:33:22,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:33:22,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:22,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:33:22,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:22,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998386460] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:33:22,393 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:33:22,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-07-23 13:33:22,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92165045] [2022-07-23 13:33:22,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:33:22,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 13:33:22,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:33:22,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 13:33:22,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-07-23 13:33:22,395 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 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) [2022-07-23 13:33:22,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:33:22,490 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2022-07-23 13:33:22,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 13:33:22,491 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 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 11 [2022-07-23 13:33:22,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:33:22,492 INFO L225 Difference]: With dead ends: 31 [2022-07-23 13:33:22,492 INFO L226 Difference]: Without dead ends: 30 [2022-07-23 13:33:22,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=115, Unknown=0, NotChecked=0, Total=210 [2022-07-23 13:33:22,493 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 20 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:33:22,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 22 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:33:22,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-07-23 13:33:22,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2022-07-23 13:33:22,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 1.2) internal successors, (30), 27 states have internal predecessors, (30), 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) [2022-07-23 13:33:22,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2022-07-23 13:33:22,499 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 11 [2022-07-23 13:33:22,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:33:22,499 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-07-23 13:33:22,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 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) [2022-07-23 13:33:22,499 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2022-07-23 13:33:22,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-23 13:33:22,500 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:33:22,500 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:33:22,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-23 13:33:22,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:33:22,725 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-23 13:33:22,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:33:22,725 INFO L85 PathProgramCache]: Analyzing trace with hash -632206243, now seen corresponding path program 1 times [2022-07-23 13:33:22,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:33:22,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607222596] [2022-07-23 13:33:22,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:33:22,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:33:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:33:22,769 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:22,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:33:22,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607222596] [2022-07-23 13:33:22,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607222596] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:33:22,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565603149] [2022-07-23 13:33:22,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:33:22,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:33:22,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:33:22,772 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) [2022-07-23 13:33:22,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-23 13:33:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:33:22,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 13:33:22,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:33:22,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:22,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:33:22,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565603149] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:33:22,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:33:22,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-07-23 13:33:22,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026232337] [2022-07-23 13:33:22,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:33:22,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:33:22,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:33:22,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:33:22,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-23 13:33:22,867 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-07-23 13:33:22,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:33:22,910 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-07-23 13:33:22,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:33:22,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2022-07-23 13:33:22,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:33:22,912 INFO L225 Difference]: With dead ends: 28 [2022-07-23 13:33:22,913 INFO L226 Difference]: Without dead ends: 27 [2022-07-23 13:33:22,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-23 13:33:22,917 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:33:22,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 14 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:33:22,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-07-23 13:33:22,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-07-23 13:33:22,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.12) internal successors, (28), 26 states have internal predecessors, (28), 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) [2022-07-23 13:33:22,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2022-07-23 13:33:22,933 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 12 [2022-07-23 13:33:22,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:33:22,934 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2022-07-23 13:33:22,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-07-23 13:33:22,935 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2022-07-23 13:33:22,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-23 13:33:22,935 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:33:22,937 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:33:22,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-23 13:33:23,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-23 13:33:23,162 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-23 13:33:23,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:33:23,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1876442994, now seen corresponding path program 1 times [2022-07-23 13:33:23,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:33:23,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483266526] [2022-07-23 13:33:23,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:33:23,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:33:23,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:33:23,198 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:23,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:33:23,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483266526] [2022-07-23 13:33:23,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483266526] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:33:23,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258057282] [2022-07-23 13:33:23,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:33:23,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:33:23,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:33:23,200 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) [2022-07-23 13:33:23,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-23 13:33:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:33:23,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:33:23,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:33:23,266 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:23,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:33:23,304 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:23,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258057282] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:33:23,305 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:33:23,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-23 13:33:23,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57777675] [2022-07-23 13:33:23,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:33:23,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 13:33:23,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:33:23,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 13:33:23,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:33:23,306 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-07-23 13:33:23,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:33:23,345 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2022-07-23 13:33:23,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:33:23,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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 [2022-07-23 13:33:23,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:33:23,347 INFO L225 Difference]: With dead ends: 38 [2022-07-23 13:33:23,347 INFO L226 Difference]: Without dead ends: 37 [2022-07-23 13:33:23,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:33:23,348 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:33:23,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 20 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:33:23,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-07-23 13:33:23,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2022-07-23 13:33:23,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.088235294117647) internal successors, (37), 35 states have internal predecessors, (37), 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) [2022-07-23 13:33:23,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2022-07-23 13:33:23,353 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 13 [2022-07-23 13:33:23,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:33:23,354 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2022-07-23 13:33:23,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-07-23 13:33:23,354 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2022-07-23 13:33:23,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-23 13:33:23,355 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:33:23,355 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2022-07-23 13:33:23,377 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-23 13:33:23,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:33:23,568 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-23 13:33:23,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:33:23,568 INFO L85 PathProgramCache]: Analyzing trace with hash 167825232, now seen corresponding path program 2 times [2022-07-23 13:33:23,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:33:23,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600611613] [2022-07-23 13:33:23,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:33:23,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:33:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:33:23,671 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:23,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:33:23,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600611613] [2022-07-23 13:33:23,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600611613] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:33:23,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046584620] [2022-07-23 13:33:23,672 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:33:23,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:33:23,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:33:23,674 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) [2022-07-23 13:33:23,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-23 13:33:23,717 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-23 13:33:23,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:33:23,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-23 13:33:23,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:33:23,893 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:23,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:33:24,074 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:24,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046584620] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:33:24,074 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:33:24,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2022-07-23 13:33:24,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585274733] [2022-07-23 13:33:24,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:33:24,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-23 13:33:24,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:33:24,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-23 13:33:24,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2022-07-23 13:33:24,076 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 23 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 23 states have internal predecessors, (73), 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) [2022-07-23 13:33:24,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:33:24,280 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2022-07-23 13:33:24,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-23 13:33:24,281 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 23 states have internal predecessors, (73), 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 25 [2022-07-23 13:33:24,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:33:24,282 INFO L225 Difference]: With dead ends: 58 [2022-07-23 13:33:24,282 INFO L226 Difference]: Without dead ends: 57 [2022-07-23 13:33:24,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=605, Unknown=0, NotChecked=0, Total=930 [2022-07-23 13:33:24,283 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 83 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:33:24,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 56 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:33:24,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-07-23 13:33:24,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2022-07-23 13:33:24,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 53 states have (on average 1.0754716981132075) internal successors, (57), 54 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) [2022-07-23 13:33:24,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2022-07-23 13:33:24,290 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 25 [2022-07-23 13:33:24,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:33:24,292 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2022-07-23 13:33:24,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 23 states have internal predecessors, (73), 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) [2022-07-23 13:33:24,292 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2022-07-23 13:33:24,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-23 13:33:24,293 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:33:24,293 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1, 1] [2022-07-23 13:33:24,320 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-23 13:33:24,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:33:24,507 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-23 13:33:24,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:33:24,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1799513594, now seen corresponding path program 2 times [2022-07-23 13:33:24,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:33:24,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477832453] [2022-07-23 13:33:24,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:33:24,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:33:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:33:24,626 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:24,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:33:24,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477832453] [2022-07-23 13:33:24,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477832453] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:33:24,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3053886] [2022-07-23 13:33:24,626 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:33:24,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:33:24,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:33:24,628 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) [2022-07-23 13:33:24,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-23 13:33:24,666 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-23 13:33:24,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:33:24,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-23 13:33:24,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:33:24,860 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:24,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:33:25,082 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:25,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3053886] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:33:25,082 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:33:25,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2022-07-23 13:33:25,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592002860] [2022-07-23 13:33:25,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:33:25,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-23 13:33:25,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:33:25,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-23 13:33:25,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2022-07-23 13:33:25,085 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 27 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 27 states have internal predecessors, (92), 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) [2022-07-23 13:33:25,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:33:25,319 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2022-07-23 13:33:25,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-23 13:33:25,320 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 27 states have internal predecessors, (92), 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 34 [2022-07-23 13:33:25,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:33:25,321 INFO L225 Difference]: With dead ends: 55 [2022-07-23 13:33:25,321 INFO L226 Difference]: Without dead ends: 54 [2022-07-23 13:33:25,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=455, Invalid=1027, Unknown=0, NotChecked=0, Total=1482 [2022-07-23 13:33:25,323 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 59 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:33:25,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 108 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:33:25,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-07-23 13:33:25,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-07-23 13:33:25,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 53 states have internal predecessors, (54), 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) [2022-07-23 13:33:25,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2022-07-23 13:33:25,331 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 34 [2022-07-23 13:33:25,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:33:25,331 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2022-07-23 13:33:25,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 27 states have internal predecessors, (92), 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) [2022-07-23 13:33:25,332 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2022-07-23 13:33:25,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-23 13:33:25,332 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:33:25,333 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 1, 1, 1] [2022-07-23 13:33:25,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-23 13:33:25,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:33:25,547 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-23 13:33:25,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:33:25,548 INFO L85 PathProgramCache]: Analyzing trace with hash -855133616, now seen corresponding path program 3 times [2022-07-23 13:33:25,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:33:25,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448990750] [2022-07-23 13:33:25,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:33:25,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:33:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:33:25,772 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:25,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:33:25,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448990750] [2022-07-23 13:33:25,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448990750] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:33:25,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837193853] [2022-07-23 13:33:25,774 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-23 13:33:25,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:33:25,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:33:25,775 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) [2022-07-23 13:33:25,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-23 13:33:25,859 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-07-23 13:33:25,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:33:25,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-23 13:33:25,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:33:26,248 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:26,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:33:41,709 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:33:41,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837193853] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:33:41,709 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:33:41,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 46 [2022-07-23 13:33:41,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132304751] [2022-07-23 13:33:41,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:33:41,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-07-23 13:33:41,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:33:41,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-07-23 13:33:41,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=590, Invalid=1564, Unknown=8, NotChecked=0, Total=2162 [2022-07-23 13:33:41,712 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 47 states, 46 states have (on average 3.4130434782608696) internal successors, (157), 47 states have internal predecessors, (157), 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) [2022-07-23 13:34:23,901 WARN L233 SmtUtils]: Spent 6.32s on a formula simplification. DAG size of input: 56 DAG size of output: 39 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-23 13:34:24,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:24,547 INFO L93 Difference]: Finished difference Result 111 states and 118 transitions. [2022-07-23 13:34:24,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-23 13:34:24,548 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 3.4130434782608696) internal successors, (157), 47 states have internal predecessors, (157), 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 53 [2022-07-23 13:34:24,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:24,549 INFO L225 Difference]: With dead ends: 111 [2022-07-23 13:34:24,549 INFO L226 Difference]: Without dead ends: 110 [2022-07-23 13:34:24,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1538 ImplicationChecksByTransitivity, 58.0s TimeCoverageRelationStatistics Valid=1314, Invalid=2956, Unknown=20, NotChecked=0, Total=4290 [2022-07-23 13:34:24,551 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 220 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 89 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:24,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 125 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 131 Invalid, 0 Unknown, 89 Unchecked, 0.2s Time] [2022-07-23 13:34:24,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-07-23 13:34:24,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2022-07-23 13:34:24,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.0091743119266054) internal successors, (110), 109 states have internal predecessors, (110), 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) [2022-07-23 13:34:24,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 110 transitions. [2022-07-23 13:34:24,562 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 110 transitions. Word has length 53 [2022-07-23 13:34:24,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:24,562 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 110 transitions. [2022-07-23 13:34:24,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 3.4130434782608696) internal successors, (157), 47 states have internal predecessors, (157), 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) [2022-07-23 13:34:24,563 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 110 transitions. [2022-07-23 13:34:24,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-23 13:34:24,565 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:24,565 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1] [2022-07-23 13:34:24,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:24,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:24,779 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-23 13:34:24,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:24,780 INFO L85 PathProgramCache]: Analyzing trace with hash 2142107728, now seen corresponding path program 4 times [2022-07-23 13:34:24,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:24,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629738496] [2022-07-23 13:34:24,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:24,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:25,649 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:25,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:25,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629738496] [2022-07-23 13:34:25,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629738496] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:25,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395777341] [2022-07-23 13:34:25,650 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-23 13:34:25,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:25,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:25,652 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) [2022-07-23 13:34:25,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-23 13:34:25,733 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-23 13:34:25,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:34:25,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 33 conjunts are in the unsatisfiable core [2022-07-23 13:34:25,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:27,156 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:27,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:37:42,664 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:37:42,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395777341] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:37:42,664 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:37:42,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2022-07-23 13:37:42,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892011411] [2022-07-23 13:37:42,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:37:42,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-07-23 13:37:42,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:37:42,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-07-23 13:37:42,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2153, Invalid=6697, Unknown=80, NotChecked=0, Total=8930 [2022-07-23 13:37:42,670 INFO L87 Difference]: Start difference. First operand 110 states and 110 transitions. Second operand has 95 states, 94 states have (on average 3.4574468085106385) internal successors, (325), 95 states have internal predecessors, (325), 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)