./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6c24879c 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/goblint-regression/28-race_reach_76-tricky_address3_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:30:18,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:30:18,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:30:19,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:30:19,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:30:19,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:30:19,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:30:19,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:30:19,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:30:19,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:30:19,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:30:19,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:30:19,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:30:19,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:30:19,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:30:19,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:30:19,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:30:19,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:30:19,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:30:19,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:30:19,040 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:30:19,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:30:19,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:30:19,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:30:19,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:30:19,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:30:19,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:30:19,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:30:19,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:30:19,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:30:19,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:30:19,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:30:19,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:30:19,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:30:19,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:30:19,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:30:19,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:30:19,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:30:19,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:30:19,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:30:19,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:30:19,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:30:19,057 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-13 02:30:19,083 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:30:19,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:30:19,084 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:30:19,084 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:30:19,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:30:19,085 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:30:19,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:30:19,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:30:19,085 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:30:19,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:30:19,086 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 02:30:19,086 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:30:19,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:30:19,087 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 02:30:19,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:30:19,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:30:19,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:30:19,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:30:19,087 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:30:19,087 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 02:30:19,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:30:19,088 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:30:19,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:30:19,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:30:19,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:30:19,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:30:19,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:30:19,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:30:19,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:30:19,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:30:19,089 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:30:19,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:30:19,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:30:19,090 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 [2022-07-13 02:30:19,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:30:19,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:30:19,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:30:19,300 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:30:19,300 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:30:19,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i [2022-07-13 02:30:19,364 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/525cc5482/c807337711e140c9b607539138ce0f7a/FLAG32a8c6946 [2022-07-13 02:30:19,774 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:30:19,774 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i [2022-07-13 02:30:19,784 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/525cc5482/c807337711e140c9b607539138ce0f7a/FLAG32a8c6946 [2022-07-13 02:30:19,793 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/525cc5482/c807337711e140c9b607539138ce0f7a [2022-07-13 02:30:19,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:30:19,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:30:19,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:30:19,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:30:19,816 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:30:19,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:30:19" (1/1) ... [2022-07-13 02:30:19,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6afd0b5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:19, skipping insertion in model container [2022-07-13 02:30:19,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:30:19" (1/1) ... [2022-07-13 02:30:19,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:30:19,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:30:20,166 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/goblint-regression/28-race_reach_76-tricky_address3_racefree.i[41323,41336] [2022-07-13 02:30:20,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:30:20,207 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:30:20,241 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/goblint-regression/28-race_reach_76-tricky_address3_racefree.i[41323,41336] [2022-07-13 02:30:20,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:30:20,283 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:30:20,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:20 WrapperNode [2022-07-13 02:30:20,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:30:20,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:30:20,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:30:20,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:30:20,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:20" (1/1) ... [2022-07-13 02:30:20,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:20" (1/1) ... [2022-07-13 02:30:20,319 INFO L137 Inliner]: procedures = 270, calls = 41, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 205 [2022-07-13 02:30:20,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:30:20,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:30:20,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:30:20,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:30:20,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:20" (1/1) ... [2022-07-13 02:30:20,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:20" (1/1) ... [2022-07-13 02:30:20,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:20" (1/1) ... [2022-07-13 02:30:20,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:20" (1/1) ... [2022-07-13 02:30:20,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:20" (1/1) ... [2022-07-13 02:30:20,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:20" (1/1) ... [2022-07-13 02:30:20,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:20" (1/1) ... [2022-07-13 02:30:20,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:30:20,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:30:20,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:30:20,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:30:20,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:20" (1/1) ... [2022-07-13 02:30:20,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:30:20,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:30:20,377 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) [2022-07-13 02:30:20,379 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 [2022-07-13 02:30:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 02:30:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 02:30:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 02:30:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 02:30:20,403 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 02:30:20,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 02:30:20,403 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-13 02:30:20,406 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-13 02:30:20,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 02:30:20,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:30:20,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:30:20,408 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 02:30:20,512 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:30:20,513 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:30:20,774 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:30:20,781 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:30:20,781 INFO L299 CfgBuilder]: Removed 23 assume(true) statements. [2022-07-13 02:30:20,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:30:20 BoogieIcfgContainer [2022-07-13 02:30:20,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:30:20,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:30:20,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:30:20,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:30:20,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:30:19" (1/3) ... [2022-07-13 02:30:20,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be3190f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:30:20, skipping insertion in model container [2022-07-13 02:30:20,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:30:20" (2/3) ... [2022-07-13 02:30:20,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be3190f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:30:20, skipping insertion in model container [2022-07-13 02:30:20,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:30:20" (3/3) ... [2022-07-13 02:30:20,788 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_76-tricky_address3_racefree.i [2022-07-13 02:30:20,792 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 02:30:20,799 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:30:20,799 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-07-13 02:30:20,799 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 02:30:20,852 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-07-13 02:30:20,885 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:30:20,897 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 202 places, 230 transitions, 468 flow [2022-07-13 02:30:20,904 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 202 places, 230 transitions, 468 flow [2022-07-13 02:30:20,906 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 202 places, 230 transitions, 468 flow [2022-07-13 02:30:21,020 INFO L129 PetriNetUnfolder]: 45/309 cut-off events. [2022-07-13 02:30:21,020 INFO L130 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2022-07-13 02:30:21,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 309 events. 45/309 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 986 event pairs, 0 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 172. Up to 8 conditions per place. [2022-07-13 02:30:21,035 INFO L116 LiptonReduction]: Number of co-enabled transitions 14952 [2022-07-13 02:30:24,537 INFO L131 LiptonReduction]: Checked pairs total: 25853 [2022-07-13 02:30:24,538 INFO L133 LiptonReduction]: Total number of compositions: 229 [2022-07-13 02:30:24,551 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 83 transitions, 174 flow [2022-07-13 02:30:24,596 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 698 states, 627 states have (on average 3.065390749601276) internal successors, (1922), 697 states have internal predecessors, (1922), 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) [2022-07-13 02:30:24,609 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:30:24,613 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@1e865f8d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2ff34191 [2022-07-13 02:30:24,614 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2022-07-13 02:30:24,617 INFO L276 IsEmpty]: Start isEmpty. Operand has 698 states, 627 states have (on average 3.065390749601276) internal successors, (1922), 697 states have internal predecessors, (1922), 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) [2022-07-13 02:30:24,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-13 02:30:24,621 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:24,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-13 02:30:24,622 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-07-13 02:30:24,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:24,625 INFO L85 PathProgramCache]: Analyzing trace with hash 29415, now seen corresponding path program 1 times [2022-07-13 02:30:24,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:24,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379240562] [2022-07-13 02:30:24,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:24,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:24,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:30:24,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:24,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379240562] [2022-07-13 02:30:24,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379240562] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:30:24,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:30:24,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:30:24,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199247522] [2022-07-13 02:30:24,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:30:24,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 02:30:24,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:24,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 02:30:24,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 02:30:24,750 INFO L87 Difference]: Start difference. First operand has 698 states, 627 states have (on average 3.065390749601276) internal successors, (1922), 697 states have internal predecessors, (1922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:30:24,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:24,837 INFO L93 Difference]: Finished difference Result 639 states and 1251 transitions. [2022-07-13 02:30:24,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 02:30:24,839 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-07-13 02:30:24,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:24,855 INFO L225 Difference]: With dead ends: 639 [2022-07-13 02:30:24,856 INFO L226 Difference]: Without dead ends: 621 [2022-07-13 02:30:24,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 02:30:24,860 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:24,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:30:24,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2022-07-13 02:30:24,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 621. [2022-07-13 02:30:24,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 571 states have (on average 2.140105078809107) internal successors, (1222), 620 states have internal predecessors, (1222), 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) [2022-07-13 02:30:24,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 1222 transitions. [2022-07-13 02:30:24,919 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 1222 transitions. Word has length 2 [2022-07-13 02:30:24,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:24,919 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 1222 transitions. [2022-07-13 02:30:24,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:30:24,920 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 1222 transitions. [2022-07-13 02:30:24,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-13 02:30:24,920 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:24,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-13 02:30:24,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:30:24,921 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-07-13 02:30:24,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:24,921 INFO L85 PathProgramCache]: Analyzing trace with hash 29465, now seen corresponding path program 1 times [2022-07-13 02:30:24,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:24,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055757894] [2022-07-13 02:30:24,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:24,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:24,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:24,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:30:24,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:24,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055757894] [2022-07-13 02:30:24,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055757894] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:30:24,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:30:24,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:30:24,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68815501] [2022-07-13 02:30:24,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:30:24,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:30:24,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:24,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:30:24,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:30:24,970 INFO L87 Difference]: Start difference. First operand 621 states and 1222 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:30:25,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:25,041 INFO L93 Difference]: Finished difference Result 622 states and 1223 transitions. [2022-07-13 02:30:25,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:30:25,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-07-13 02:30:25,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:25,045 INFO L225 Difference]: With dead ends: 622 [2022-07-13 02:30:25,046 INFO L226 Difference]: Without dead ends: 622 [2022-07-13 02:30:25,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:30:25,052 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:25,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:30:25,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-07-13 02:30:25,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 622. [2022-07-13 02:30:25,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 572 states have (on average 2.138111888111888) internal successors, (1223), 621 states have internal predecessors, (1223), 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) [2022-07-13 02:30:25,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 1223 transitions. [2022-07-13 02:30:25,086 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 1223 transitions. Word has length 2 [2022-07-13 02:30:25,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:25,086 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 1223 transitions. [2022-07-13 02:30:25,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:30:25,086 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 1223 transitions. [2022-07-13 02:30:25,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-13 02:30:25,086 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:25,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-13 02:30:25,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 02:30:25,087 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-07-13 02:30:25,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:25,088 INFO L85 PathProgramCache]: Analyzing trace with hash 914236, now seen corresponding path program 1 times [2022-07-13 02:30:25,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:25,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595400946] [2022-07-13 02:30:25,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:25,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:25,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:30:25,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:25,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595400946] [2022-07-13 02:30:25,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595400946] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:30:25,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:30:25,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:30:25,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079537939] [2022-07-13 02:30:25,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:30:25,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:30:25,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:25,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:30:25,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:30:25,138 INFO L87 Difference]: Start difference. First operand 622 states and 1223 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-07-13 02:30:25,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:25,194 INFO L93 Difference]: Finished difference Result 621 states and 1222 transitions. [2022-07-13 02:30:25,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:30:25,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-07-13 02:30:25,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:25,197 INFO L225 Difference]: With dead ends: 621 [2022-07-13 02:30:25,198 INFO L226 Difference]: Without dead ends: 621 [2022-07-13 02:30:25,198 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 [2022-07-13 02:30:25,199 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 55 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:25,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 9 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:30:25,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2022-07-13 02:30:25,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 621. [2022-07-13 02:30:25,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 572 states have (on average 2.1363636363636362) internal successors, (1222), 620 states have internal predecessors, (1222), 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) [2022-07-13 02:30:25,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 1222 transitions. [2022-07-13 02:30:25,211 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 1222 transitions. Word has length 3 [2022-07-13 02:30:25,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:25,211 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 1222 transitions. [2022-07-13 02:30:25,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-07-13 02:30:25,212 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 1222 transitions. [2022-07-13 02:30:25,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:30:25,212 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:25,212 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 02:30:25,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 02:30:25,213 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-07-13 02:30:25,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:25,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1467855187, now seen corresponding path program 1 times [2022-07-13 02:30:25,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:25,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212985171] [2022-07-13 02:30:25,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:25,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:25,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:30:25,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:25,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212985171] [2022-07-13 02:30:25,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212985171] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:30:25,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890407520] [2022-07-13 02:30:25,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:25,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:30:25,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:30:25,248 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) [2022-07-13 02:30:25,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 02:30:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:25,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:30:25,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:30:25,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:30:25,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:30:25,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:30:25,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890407520] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:30:25,375 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:30:25,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-07-13 02:30:25,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170469650] [2022-07-13 02:30:25,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:30:25,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 02:30:25,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:25,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 02:30:25,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:30:25,376 INFO L87 Difference]: Start difference. First operand 621 states and 1222 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 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) [2022-07-13 02:30:25,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:25,479 INFO L93 Difference]: Finished difference Result 624 states and 1225 transitions. [2022-07-13 02:30:25,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:30:25,479 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 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 [2022-07-13 02:30:25,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:25,482 INFO L225 Difference]: With dead ends: 624 [2022-07-13 02:30:25,482 INFO L226 Difference]: Without dead ends: 624 [2022-07-13 02:30:25,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:30:25,483 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:25,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:30:25,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2022-07-13 02:30:25,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 624. [2022-07-13 02:30:25,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 575 states have (on average 2.130434782608696) internal successors, (1225), 623 states have internal predecessors, (1225), 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) [2022-07-13 02:30:25,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 1225 transitions. [2022-07-13 02:30:25,506 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 1225 transitions. Word has length 6 [2022-07-13 02:30:25,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:25,506 INFO L495 AbstractCegarLoop]: Abstraction has 624 states and 1225 transitions. [2022-07-13 02:30:25,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 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) [2022-07-13 02:30:25,506 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 1225 transitions. [2022-07-13 02:30:25,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:30:25,506 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:25,507 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1] [2022-07-13 02:30:25,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-13 02:30:25,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:30:25,736 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-07-13 02:30:25,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:25,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1707335786, now seen corresponding path program 2 times [2022-07-13 02:30:25,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:25,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258635470] [2022-07-13 02:30:25,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:25,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:25,770 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-13 02:30:25,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:25,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258635470] [2022-07-13 02:30:25,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258635470] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:30:25,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:30:25,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:30:25,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505727641] [2022-07-13 02:30:25,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:30:25,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:30:25,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:25,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:30:25,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:30:25,772 INFO L87 Difference]: Start difference. First operand 624 states and 1225 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) [2022-07-13 02:30:25,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:25,851 INFO L93 Difference]: Finished difference Result 570 states and 1129 transitions. [2022-07-13 02:30:25,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:30:25,852 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 9 [2022-07-13 02:30:25,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:25,854 INFO L225 Difference]: With dead ends: 570 [2022-07-13 02:30:25,854 INFO L226 Difference]: Without dead ends: 570 [2022-07-13 02:30:25,854 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 [2022-07-13 02:30:25,855 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 21 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:25,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 18 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:30:25,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2022-07-13 02:30:25,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 570. [2022-07-13 02:30:25,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 535 states have (on average 2.1102803738317757) internal successors, (1129), 569 states have internal predecessors, (1129), 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) [2022-07-13 02:30:25,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 1129 transitions. [2022-07-13 02:30:25,867 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 1129 transitions. Word has length 9 [2022-07-13 02:30:25,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:25,867 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 1129 transitions. [2022-07-13 02:30:25,868 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) [2022-07-13 02:30:25,868 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 1129 transitions. [2022-07-13 02:30:25,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 02:30:25,868 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:25,869 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2022-07-13 02:30:25,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 02:30:25,869 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-07-13 02:30:25,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:25,869 INFO L85 PathProgramCache]: Analyzing trace with hash -72155885, now seen corresponding path program 1 times [2022-07-13 02:30:25,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:25,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309851553] [2022-07-13 02:30:25,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:25,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:25,972 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 02:30:25,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:25,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309851553] [2022-07-13 02:30:25,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309851553] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:30:25,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060094365] [2022-07-13 02:30:25,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:25,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:30:25,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:30:25,975 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) [2022-07-13 02:30:25,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 02:30:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:26,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 02:30:26,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:30:26,050 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 02:30:26,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:30:26,089 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 02:30:26,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060094365] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:30:26,090 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:30:26,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-07-13 02:30:26,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54787943] [2022-07-13 02:30:26,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:30:26,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-13 02:30:26,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:26,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 02:30:26,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-07-13 02:30:26,093 INFO L87 Difference]: Start difference. First operand 570 states and 1129 transitions. Second operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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) [2022-07-13 02:30:26,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:26,179 INFO L93 Difference]: Finished difference Result 576 states and 1135 transitions. [2022-07-13 02:30:26,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 02:30:26,179 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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 [2022-07-13 02:30:26,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:26,182 INFO L225 Difference]: With dead ends: 576 [2022-07-13 02:30:26,182 INFO L226 Difference]: Without dead ends: 576 [2022-07-13 02:30:26,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-07-13 02:30:26,183 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:26,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:30:26,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2022-07-13 02:30:26,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2022-07-13 02:30:26,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 541 states have (on average 2.0979667282809613) internal successors, (1135), 575 states have internal predecessors, (1135), 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) [2022-07-13 02:30:26,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 1135 transitions. [2022-07-13 02:30:26,192 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 1135 transitions. Word has length 11 [2022-07-13 02:30:26,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:26,193 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 1135 transitions. [2022-07-13 02:30:26,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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) [2022-07-13 02:30:26,193 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 1135 transitions. [2022-07-13 02:30:26,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-13 02:30:26,193 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:26,194 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1] [2022-07-13 02:30:26,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 02:30:26,408 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 [2022-07-13 02:30:26,408 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-07-13 02:30:26,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:26,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1049134093, now seen corresponding path program 2 times [2022-07-13 02:30:26,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:26,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380216017] [2022-07-13 02:30:26,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:26,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:30:26,451 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 02:30:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:30:26,499 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 02:30:26,508 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 02:30:26,509 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2022-07-13 02:30:26,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2022-07-13 02:30:26,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2022-07-13 02:30:26,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2022-07-13 02:30:26,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2022-07-13 02:30:26,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining) [2022-07-13 02:30:26,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2022-07-13 02:30:26,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2022-07-13 02:30:26,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining) [2022-07-13 02:30:26,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2022-07-13 02:30:26,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining) [2022-07-13 02:30:26,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining) [2022-07-13 02:30:26,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining) [2022-07-13 02:30:26,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining) [2022-07-13 02:30:26,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 23 remaining) [2022-07-13 02:30:26,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 23 remaining) [2022-07-13 02:30:26,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 23 remaining) [2022-07-13 02:30:26,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2022-07-13 02:30:26,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining) [2022-07-13 02:30:26,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining) [2022-07-13 02:30:26,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2022-07-13 02:30:26,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2022-07-13 02:30:26,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining) [2022-07-13 02:30:26,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 02:30:26,520 INFO L356 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2022-07-13 02:30:26,521 WARN L231 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-13 02:30:26,521 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-07-13 02:30:26,548 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-13 02:30:26,551 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:30:26,552 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 276 places, 316 transitions, 650 flow [2022-07-13 02:30:26,552 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 276 places, 316 transitions, 650 flow [2022-07-13 02:30:26,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 276 places, 316 transitions, 650 flow [2022-07-13 02:30:26,603 INFO L129 PetriNetUnfolder]: 75/511 cut-off events. [2022-07-13 02:30:26,603 INFO L130 PetriNetUnfolder]: For 6/8 co-relation queries the response was YES. [2022-07-13 02:30:26,611 INFO L84 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 511 events. 75/511 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2113 event pairs, 0 based on Foata normal form. 0/396 useless extension candidates. Maximal degree in co-relation 311. Up to 12 conditions per place. [2022-07-13 02:30:26,633 INFO L116 LiptonReduction]: Number of co-enabled transitions 47208 [2022-07-13 02:30:30,912 INFO L131 LiptonReduction]: Checked pairs total: 83109 [2022-07-13 02:30:30,912 INFO L133 LiptonReduction]: Total number of compositions: 313 [2022-07-13 02:30:30,913 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 118 transitions, 254 flow [2022-07-13 02:30:31,389 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 16269 states, 15736 states have (on average 4.26779359430605) internal successors, (67158), 16268 states have internal predecessors, (67158), 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) [2022-07-13 02:30:31,390 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:30:31,391 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@1e865f8d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2ff34191 [2022-07-13 02:30:31,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-07-13 02:30:31,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 16269 states, 15736 states have (on average 4.26779359430605) internal successors, (67158), 16268 states have internal predecessors, (67158), 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) [2022-07-13 02:30:31,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-13 02:30:31,427 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:31,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-13 02:30:31,428 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-07-13 02:30:31,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:31,428 INFO L85 PathProgramCache]: Analyzing trace with hash 52057, now seen corresponding path program 1 times [2022-07-13 02:30:31,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:31,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858612399] [2022-07-13 02:30:31,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:31,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:31,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:30:31,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:31,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858612399] [2022-07-13 02:30:31,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858612399] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:30:31,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:30:31,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:30:31,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174662436] [2022-07-13 02:30:31,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:30:31,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 02:30:31,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:31,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 02:30:31,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 02:30:31,475 INFO L87 Difference]: Start difference. First operand has 16269 states, 15736 states have (on average 4.26779359430605) internal successors, (67158), 16268 states have internal predecessors, (67158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:30:31,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:31,776 INFO L93 Difference]: Finished difference Result 13638 states and 40081 transitions. [2022-07-13 02:30:31,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 02:30:31,777 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-07-13 02:30:31,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:31,881 INFO L225 Difference]: With dead ends: 13638 [2022-07-13 02:30:31,881 INFO L226 Difference]: Without dead ends: 13549 [2022-07-13 02:30:31,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 02:30:31,882 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:31,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:30:31,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13549 states. [2022-07-13 02:30:32,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13549 to 13549. [2022-07-13 02:30:32,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13549 states, 13261 states have (on average 3.003393409245155) internal successors, (39828), 13548 states have internal predecessors, (39828), 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) [2022-07-13 02:30:32,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13549 states to 13549 states and 39828 transitions. [2022-07-13 02:30:32,351 INFO L78 Accepts]: Start accepts. Automaton has 13549 states and 39828 transitions. Word has length 2 [2022-07-13 02:30:32,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:32,351 INFO L495 AbstractCegarLoop]: Abstraction has 13549 states and 39828 transitions. [2022-07-13 02:30:32,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:30:32,352 INFO L276 IsEmpty]: Start isEmpty. Operand 13549 states and 39828 transitions. [2022-07-13 02:30:32,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-13 02:30:32,352 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:32,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-13 02:30:32,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 02:30:32,353 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-07-13 02:30:32,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:32,354 INFO L85 PathProgramCache]: Analyzing trace with hash 52158, now seen corresponding path program 1 times [2022-07-13 02:30:32,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:32,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056054694] [2022-07-13 02:30:32,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:32,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:32,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:30:32,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:32,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056054694] [2022-07-13 02:30:32,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056054694] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:30:32,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:30:32,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:30:32,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965099664] [2022-07-13 02:30:32,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:30:32,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:30:32,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:32,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:30:32,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:30:32,372 INFO L87 Difference]: Start difference. First operand 13549 states and 39828 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:30:32,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:32,618 INFO L93 Difference]: Finished difference Result 13550 states and 39829 transitions. [2022-07-13 02:30:32,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:30:32,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-07-13 02:30:32,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:32,743 INFO L225 Difference]: With dead ends: 13550 [2022-07-13 02:30:32,743 INFO L226 Difference]: Without dead ends: 13550 [2022-07-13 02:30:32,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:30:32,745 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:32,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:30:32,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13550 states. [2022-07-13 02:30:33,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13550 to 13550. [2022-07-13 02:30:33,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13550 states, 13262 states have (on average 3.0032423465540643) internal successors, (39829), 13549 states have internal predecessors, (39829), 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) [2022-07-13 02:30:33,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13550 states to 13550 states and 39829 transitions. [2022-07-13 02:30:33,221 INFO L78 Accepts]: Start accepts. Automaton has 13550 states and 39829 transitions. Word has length 2 [2022-07-13 02:30:33,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:33,221 INFO L495 AbstractCegarLoop]: Abstraction has 13550 states and 39829 transitions. [2022-07-13 02:30:33,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:30:33,221 INFO L276 IsEmpty]: Start isEmpty. Operand 13550 states and 39829 transitions. [2022-07-13 02:30:33,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-13 02:30:33,222 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:33,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-13 02:30:33,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 02:30:33,222 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-07-13 02:30:33,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:33,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1618464, now seen corresponding path program 1 times [2022-07-13 02:30:33,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:33,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055358944] [2022-07-13 02:30:33,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:33,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:33,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:30:33,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:33,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055358944] [2022-07-13 02:30:33,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055358944] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:30:33,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255818348] [2022-07-13 02:30:33,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:33,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:30:33,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:30:33,240 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) [2022-07-13 02:30:33,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 02:30:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:33,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 02:30:33,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:30:33,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:30:33,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:30:33,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255818348] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:30:33,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 02:30:33,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2022-07-13 02:30:33,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210690617] [2022-07-13 02:30:33,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:30:33,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:30:33,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:33,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:30:33,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:30:33,302 INFO L87 Difference]: Start difference. First operand 13550 states and 39829 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-07-13 02:30:33,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:33,508 INFO L93 Difference]: Finished difference Result 13549 states and 39828 transitions. [2022-07-13 02:30:33,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:30:33,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-07-13 02:30:33,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:33,560 INFO L225 Difference]: With dead ends: 13549 [2022-07-13 02:30:33,560 INFO L226 Difference]: Without dead ends: 13549 [2022-07-13 02:30:33,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:30:33,561 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 80 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:33,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 14 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:30:33,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13549 states. [2022-07-13 02:30:33,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13549 to 13549. [2022-07-13 02:30:34,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13549 states, 13262 states have (on average 3.00316694314583) internal successors, (39828), 13548 states have internal predecessors, (39828), 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) [2022-07-13 02:30:34,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13549 states to 13549 states and 39828 transitions. [2022-07-13 02:30:34,057 INFO L78 Accepts]: Start accepts. Automaton has 13549 states and 39828 transitions. Word has length 3 [2022-07-13 02:30:34,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:34,057 INFO L495 AbstractCegarLoop]: Abstraction has 13549 states and 39828 transitions. [2022-07-13 02:30:34,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-07-13 02:30:34,057 INFO L276 IsEmpty]: Start isEmpty. Operand 13549 states and 39828 transitions. [2022-07-13 02:30:34,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 02:30:34,058 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:34,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:30:34,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-13 02:30:34,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:30:34,279 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-07-13 02:30:34,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:34,280 INFO L85 PathProgramCache]: Analyzing trace with hash 129520365, now seen corresponding path program 1 times [2022-07-13 02:30:34,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:34,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480757048] [2022-07-13 02:30:34,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:34,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:34,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:30:34,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:34,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480757048] [2022-07-13 02:30:34,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480757048] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:30:34,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965229177] [2022-07-13 02:30:34,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:34,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:30:34,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:30:34,312 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) [2022-07-13 02:30:34,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 02:30:34,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:34,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:30:34,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:30:34,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:30:34,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:30:34,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:30:34,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965229177] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:30:34,444 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:30:34,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-07-13 02:30:34,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681057212] [2022-07-13 02:30:34,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:30:34,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 02:30:34,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:34,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 02:30:34,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:30:34,446 INFO L87 Difference]: Start difference. First operand 13549 states and 39828 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 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) [2022-07-13 02:30:34,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:34,677 INFO L93 Difference]: Finished difference Result 13552 states and 39831 transitions. [2022-07-13 02:30:34,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:30:34,678 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 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 7 [2022-07-13 02:30:34,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:34,852 INFO L225 Difference]: With dead ends: 13552 [2022-07-13 02:30:34,853 INFO L226 Difference]: Without dead ends: 13552 [2022-07-13 02:30:34,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:30:34,853 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:34,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:30:34,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13552 states. [2022-07-13 02:30:35,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13552 to 13552. [2022-07-13 02:30:35,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13552 states, 13265 states have (on average 3.0027139087825105) internal successors, (39831), 13551 states have internal predecessors, (39831), 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) [2022-07-13 02:30:35,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13552 states to 13552 states and 39831 transitions. [2022-07-13 02:30:35,164 INFO L78 Accepts]: Start accepts. Automaton has 13552 states and 39831 transitions. Word has length 7 [2022-07-13 02:30:35,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:35,165 INFO L495 AbstractCegarLoop]: Abstraction has 13552 states and 39831 transitions. [2022-07-13 02:30:35,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 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) [2022-07-13 02:30:35,165 INFO L276 IsEmpty]: Start isEmpty. Operand 13552 states and 39831 transitions. [2022-07-13 02:30:35,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-13 02:30:35,166 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:35,166 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2022-07-13 02:30:35,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 02:30:35,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:30:35,379 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-07-13 02:30:35,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:35,380 INFO L85 PathProgramCache]: Analyzing trace with hash 647869963, now seen corresponding path program 2 times [2022-07-13 02:30:35,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:35,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239586474] [2022-07-13 02:30:35,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:35,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:35,401 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-13 02:30:35,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:35,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239586474] [2022-07-13 02:30:35,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239586474] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:30:35,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:30:35,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:30:35,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671321004] [2022-07-13 02:30:35,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:30:35,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:30:35,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:35,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:30:35,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:30:35,403 INFO L87 Difference]: Start difference. First operand 13552 states and 39831 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) [2022-07-13 02:30:35,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:35,679 INFO L93 Difference]: Finished difference Result 13498 states and 39735 transitions. [2022-07-13 02:30:35,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:30:35,679 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 10 [2022-07-13 02:30:35,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:35,714 INFO L225 Difference]: With dead ends: 13498 [2022-07-13 02:30:35,715 INFO L226 Difference]: Without dead ends: 13498 [2022-07-13 02:30:35,715 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 [2022-07-13 02:30:35,715 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 21 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:35,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 28 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:30:35,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13498 states. [2022-07-13 02:30:35,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13498 to 13498. [2022-07-13 02:30:35,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13498 states, 13225 states have (on average 3.0045368620037807) internal successors, (39735), 13497 states have internal predecessors, (39735), 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) [2022-07-13 02:30:35,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13498 states to 13498 states and 39735 transitions. [2022-07-13 02:30:35,985 INFO L78 Accepts]: Start accepts. Automaton has 13498 states and 39735 transitions. Word has length 10 [2022-07-13 02:30:35,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:35,986 INFO L495 AbstractCegarLoop]: Abstraction has 13498 states and 39735 transitions. [2022-07-13 02:30:35,986 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) [2022-07-13 02:30:35,986 INFO L276 IsEmpty]: Start isEmpty. Operand 13498 states and 39735 transitions. [2022-07-13 02:30:35,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-13 02:30:35,986 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:35,986 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:30:35,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 02:30:35,987 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-07-13 02:30:35,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:35,987 INFO L85 PathProgramCache]: Analyzing trace with hash -321334225, now seen corresponding path program 1 times [2022-07-13 02:30:35,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:35,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022010182] [2022-07-13 02:30:35,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:35,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:36,019 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:30:36,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:36,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022010182] [2022-07-13 02:30:36,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022010182] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:30:36,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541614284] [2022-07-13 02:30:36,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:36,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:30:36,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:30:36,021 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) [2022-07-13 02:30:36,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 02:30:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:36,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 02:30:36,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:30:36,092 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:30:36,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:30:36,196 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:30:36,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541614284] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:30:36,196 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:30:36,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-07-13 02:30:36,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320098253] [2022-07-13 02:30:36,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:30:36,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-13 02:30:36,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:36,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 02:30:36,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-07-13 02:30:36,197 INFO L87 Difference]: Start difference. First operand 13498 states and 39735 transitions. Second operand has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 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) [2022-07-13 02:30:36,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:36,356 INFO L93 Difference]: Finished difference Result 13504 states and 39741 transitions. [2022-07-13 02:30:36,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 02:30:36,357 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 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 [2022-07-13 02:30:36,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:36,388 INFO L225 Difference]: With dead ends: 13504 [2022-07-13 02:30:36,388 INFO L226 Difference]: Without dead ends: 13504 [2022-07-13 02:30:36,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-07-13 02:30:36,389 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:36,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:30:36,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13504 states. [2022-07-13 02:30:36,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13504 to 13504. [2022-07-13 02:30:36,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13504 states, 13231 states have (on average 3.0036278437004005) internal successors, (39741), 13503 states have internal predecessors, (39741), 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) [2022-07-13 02:30:36,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13504 states to 13504 states and 39741 transitions. [2022-07-13 02:30:36,746 INFO L78 Accepts]: Start accepts. Automaton has 13504 states and 39741 transitions. Word has length 13 [2022-07-13 02:30:36,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:36,746 INFO L495 AbstractCegarLoop]: Abstraction has 13504 states and 39741 transitions. [2022-07-13 02:30:36,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 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) [2022-07-13 02:30:36,747 INFO L276 IsEmpty]: Start isEmpty. Operand 13504 states and 39741 transitions. [2022-07-13 02:30:36,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-13 02:30:36,747 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:36,747 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:30:36,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-13 02:30:36,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-13 02:30:36,952 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-07-13 02:30:36,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:36,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1577572497, now seen corresponding path program 2 times [2022-07-13 02:30:36,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:36,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792151921] [2022-07-13 02:30:36,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:36,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:36,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:37,015 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-13 02:30:37,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:37,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792151921] [2022-07-13 02:30:37,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792151921] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:30:37,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:30:37,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:30:37,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229332455] [2022-07-13 02:30:37,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:30:37,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 02:30:37,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:37,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 02:30:37,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:30:37,017 INFO L87 Difference]: Start difference. First operand 13504 states and 39741 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-07-13 02:30:37,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:37,312 INFO L93 Difference]: Finished difference Result 17410 states and 50612 transitions. [2022-07-13 02:30:37,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:30:37,312 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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 19 [2022-07-13 02:30:37,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:37,353 INFO L225 Difference]: With dead ends: 17410 [2022-07-13 02:30:37,353 INFO L226 Difference]: Without dead ends: 17410 [2022-07-13 02:30:37,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-13 02:30:37,354 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 210 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:37,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 73 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:30:37,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17410 states. [2022-07-13 02:30:37,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17410 to 14670. [2022-07-13 02:30:37,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14670 states, 14409 states have (on average 3.0140884169616213) internal successors, (43430), 14669 states have internal predecessors, (43430), 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) [2022-07-13 02:30:37,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14670 states to 14670 states and 43430 transitions. [2022-07-13 02:30:37,959 INFO L78 Accepts]: Start accepts. Automaton has 14670 states and 43430 transitions. Word has length 19 [2022-07-13 02:30:37,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:37,959 INFO L495 AbstractCegarLoop]: Abstraction has 14670 states and 43430 transitions. [2022-07-13 02:30:37,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-07-13 02:30:37,960 INFO L276 IsEmpty]: Start isEmpty. Operand 14670 states and 43430 transitions. [2022-07-13 02:30:37,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-13 02:30:37,961 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:37,961 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-13 02:30:37,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-13 02:30:37,961 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-07-13 02:30:37,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:37,961 INFO L85 PathProgramCache]: Analyzing trace with hash -2009862211, now seen corresponding path program 1 times [2022-07-13 02:30:37,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:37,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484695488] [2022-07-13 02:30:37,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:37,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:38,007 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-13 02:30:38,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:38,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484695488] [2022-07-13 02:30:38,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484695488] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:30:38,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489266250] [2022-07-13 02:30:38,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:38,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:30:38,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:30:38,010 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) [2022-07-13 02:30:38,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 02:30:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:38,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 02:30:38,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:30:38,089 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-13 02:30:38,090 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:30:38,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489266250] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:30:38,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 02:30:38,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-07-13 02:30:38,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472652343] [2022-07-13 02:30:38,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:30:38,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:30:38,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:38,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:30:38,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:30:38,091 INFO L87 Difference]: Start difference. First operand 14670 states and 43430 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-07-13 02:30:38,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:38,207 INFO L93 Difference]: Finished difference Result 14175 states and 41887 transitions. [2022-07-13 02:30:38,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:30:38,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-13 02:30:38,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:38,237 INFO L225 Difference]: With dead ends: 14175 [2022-07-13 02:30:38,237 INFO L226 Difference]: Without dead ends: 14175 [2022-07-13 02:30:38,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:30:38,237 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 93 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:38,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 24 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:30:38,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14175 states. [2022-07-13 02:30:38,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14175 to 14175. [2022-07-13 02:30:38,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14175 states, 13939 states have (on average 3.0050218810531604) internal successors, (41887), 14174 states have internal predecessors, (41887), 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) [2022-07-13 02:30:38,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14175 states to 14175 states and 41887 transitions. [2022-07-13 02:30:38,505 INFO L78 Accepts]: Start accepts. Automaton has 14175 states and 41887 transitions. Word has length 20 [2022-07-13 02:30:38,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:38,506 INFO L495 AbstractCegarLoop]: Abstraction has 14175 states and 41887 transitions. [2022-07-13 02:30:38,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-07-13 02:30:38,506 INFO L276 IsEmpty]: Start isEmpty. Operand 14175 states and 41887 transitions. [2022-07-13 02:30:38,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-13 02:30:38,507 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:38,507 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-13 02:30:38,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-13 02:30:38,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-13 02:30:38,710 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-07-13 02:30:38,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:38,710 INFO L85 PathProgramCache]: Analyzing trace with hash -2009862249, now seen corresponding path program 1 times [2022-07-13 02:30:38,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:38,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302120254] [2022-07-13 02:30:38,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:38,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:38,850 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-07-13 02:30:38,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:38,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302120254] [2022-07-13 02:30:38,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302120254] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:30:38,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:30:38,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:30:38,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801515652] [2022-07-13 02:30:38,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:30:38,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:30:38,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:38,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:30:38,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:30:38,852 INFO L87 Difference]: Start difference. First operand 14175 states and 41887 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-07-13 02:30:39,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:39,002 INFO L93 Difference]: Finished difference Result 13680 states and 40344 transitions. [2022-07-13 02:30:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:30:39,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-13 02:30:39,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:39,038 INFO L225 Difference]: With dead ends: 13680 [2022-07-13 02:30:39,038 INFO L226 Difference]: Without dead ends: 13680 [2022-07-13 02:30:39,038 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 [2022-07-13 02:30:39,039 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 44 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:39,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 26 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:30:39,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13680 states. [2022-07-13 02:30:39,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13680 to 13680. [2022-07-13 02:30:39,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13680 states, 13469 states have (on average 2.9953225926200906) internal successors, (40344), 13679 states have internal predecessors, (40344), 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) [2022-07-13 02:30:39,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13680 states to 13680 states and 40344 transitions. [2022-07-13 02:30:39,313 INFO L78 Accepts]: Start accepts. Automaton has 13680 states and 40344 transitions. Word has length 20 [2022-07-13 02:30:39,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:39,314 INFO L495 AbstractCegarLoop]: Abstraction has 13680 states and 40344 transitions. [2022-07-13 02:30:39,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-07-13 02:30:39,314 INFO L276 IsEmpty]: Start isEmpty. Operand 13680 states and 40344 transitions. [2022-07-13 02:30:39,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-13 02:30:39,315 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:39,315 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:30:39,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-13 02:30:39,315 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-07-13 02:30:39,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:39,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1944061411, now seen corresponding path program 1 times [2022-07-13 02:30:39,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:39,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791678239] [2022-07-13 02:30:39,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:39,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:39,370 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-13 02:30:39,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:39,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791678239] [2022-07-13 02:30:39,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791678239] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:30:39,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107861027] [2022-07-13 02:30:39,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:39,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:30:39,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:30:39,372 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) [2022-07-13 02:30:39,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-13 02:30:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:39,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-13 02:30:39,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:30:39,469 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-07-13 02:30:39,521 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-13 02:30:39,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-07-13 02:30:39,535 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-07-13 02:30:39,579 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-07-13 02:30:39,587 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-13 02:30:39,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:30:39,609 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_343 (Array Int Int)) (|t_funThread1of2ForFork0_~p~0#1.offset| Int)) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_343) |c_t_funThread1of2ForFork0_~p~0#1.base|) |t_funThread1of2ForFork0_~p~0#1.offset|) 2147483646)) is different from false [2022-07-13 02:30:39,628 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_343 (Array Int Int)) (|t_funThread1of2ForFork0_~p~0#1.offset| Int)) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_343) |c_~#a~0.base|) |t_funThread1of2ForFork0_~p~0#1.offset|) 2147483646)) is different from false [2022-07-13 02:30:39,719 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 1 not checked. [2022-07-13 02:30:39,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107861027] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:30:39,719 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:30:39,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2022-07-13 02:30:39,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588043941] [2022-07-13 02:30:39,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:30:39,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-13 02:30:39,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:39,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 02:30:39,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=84, Unknown=2, NotChecked=38, Total=156 [2022-07-13 02:30:39,723 INFO L87 Difference]: Start difference. First operand 13680 states and 40344 transitions. Second operand has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 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) [2022-07-13 02:30:40,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:30:40,073 INFO L93 Difference]: Finished difference Result 14996 states and 44416 transitions. [2022-07-13 02:30:40,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 02:30:40,074 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 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) Word has length 22 [2022-07-13 02:30:40,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:30:40,109 INFO L225 Difference]: With dead ends: 14996 [2022-07-13 02:30:40,110 INFO L226 Difference]: Without dead ends: 14996 [2022-07-13 02:30:40,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=110, Unknown=2, NotChecked=46, Total=210 [2022-07-13 02:30:40,110 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 243 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 525 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:30:40,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 138 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 265 Invalid, 0 Unknown, 525 Unchecked, 0.2s Time] [2022-07-13 02:30:40,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14996 states. [2022-07-13 02:30:40,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14996 to 13596. [2022-07-13 02:30:40,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13596 states, 13385 states have (on average 2.9940978707508403) internal successors, (40076), 13595 states have internal predecessors, (40076), 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) [2022-07-13 02:30:40,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13596 states to 13596 states and 40076 transitions. [2022-07-13 02:30:40,394 INFO L78 Accepts]: Start accepts. Automaton has 13596 states and 40076 transitions. Word has length 22 [2022-07-13 02:30:40,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:30:40,394 INFO L495 AbstractCegarLoop]: Abstraction has 13596 states and 40076 transitions. [2022-07-13 02:30:40,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 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) [2022-07-13 02:30:40,394 INFO L276 IsEmpty]: Start isEmpty. Operand 13596 states and 40076 transitions. [2022-07-13 02:30:40,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-13 02:30:40,395 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:40,395 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 1, 1, 1, 1, 1] [2022-07-13 02:30:40,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-13 02:30:40,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:30:40,596 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2022-07-13 02:30:40,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:40,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1257767894, now seen corresponding path program 1 times [2022-07-13 02:30:40,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:40,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47522365] [2022-07-13 02:30:40,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:40,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:30:40,617 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 02:30:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:30:40,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 02:30:40,645 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 02:30:40,645 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2022-07-13 02:30:40,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining) [2022-07-13 02:30:40,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining) [2022-07-13 02:30:40,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining) [2022-07-13 02:30:40,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining) [2022-07-13 02:30:40,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining) [2022-07-13 02:30:40,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining) [2022-07-13 02:30:40,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining) [2022-07-13 02:30:40,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining) [2022-07-13 02:30:40,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining) [2022-07-13 02:30:40,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining) [2022-07-13 02:30:40,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining) [2022-07-13 02:30:40,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining) [2022-07-13 02:30:40,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining) [2022-07-13 02:30:40,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining) [2022-07-13 02:30:40,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining) [2022-07-13 02:30:40,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining) [2022-07-13 02:30:40,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining) [2022-07-13 02:30:40,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining) [2022-07-13 02:30:40,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining) [2022-07-13 02:30:40,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining) [2022-07-13 02:30:40,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining) [2022-07-13 02:30:40,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining) [2022-07-13 02:30:40,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining) [2022-07-13 02:30:40,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining) [2022-07-13 02:30:40,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining) [2022-07-13 02:30:40,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining) [2022-07-13 02:30:40,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining) [2022-07-13 02:30:40,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining) [2022-07-13 02:30:40,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-13 02:30:40,651 INFO L356 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:30:40,651 WARN L231 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-13 02:30:40,651 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-07-13 02:30:40,673 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-13 02:30:40,676 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:30:40,677 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 350 places, 402 transitions, 834 flow [2022-07-13 02:30:40,677 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 350 places, 402 transitions, 834 flow [2022-07-13 02:30:40,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 350 places, 402 transitions, 834 flow [2022-07-13 02:30:40,788 INFO L129 PetriNetUnfolder]: 110/754 cut-off events. [2022-07-13 02:30:40,788 INFO L130 PetriNetUnfolder]: For 19/22 co-relation queries the response was YES. [2022-07-13 02:30:40,806 INFO L84 FinitePrefix]: Finished finitePrefix Result has 782 conditions, 754 events. 110/754 cut-off events. For 19/22 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3489 event pairs, 1 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 519. Up to 16 conditions per place. [2022-07-13 02:30:40,851 INFO L116 LiptonReduction]: Number of co-enabled transitions 92736 [2022-07-13 02:30:46,641 INFO L131 LiptonReduction]: Checked pairs total: 170237 [2022-07-13 02:30:46,642 INFO L133 LiptonReduction]: Total number of compositions: 399 [2022-07-13 02:30:46,643 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 112 places, 154 transitions, 338 flow [2022-07-13 02:30:58,599 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 378266 states, 374331 states have (on average 5.6353040490902435) internal successors, (2109469), 378265 states have internal predecessors, (2109469), 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) [2022-07-13 02:30:58,601 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:30:58,601 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@1e865f8d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2ff34191 [2022-07-13 02:30:58,601 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2022-07-13 02:30:59,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 378266 states, 374331 states have (on average 5.6353040490902435) internal successors, (2109469), 378265 states have internal predecessors, (2109469), 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) [2022-07-13 02:30:59,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-13 02:30:59,341 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:30:59,341 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-13 02:30:59,341 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-07-13 02:30:59,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:30:59,342 INFO L85 PathProgramCache]: Analyzing trace with hash 80762, now seen corresponding path program 1 times [2022-07-13 02:30:59,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:30:59,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444852953] [2022-07-13 02:30:59,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:30:59,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:30:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:30:59,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:30:59,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:30:59,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444852953] [2022-07-13 02:30:59,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444852953] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:30:59,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:30:59,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:30:59,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705495486] [2022-07-13 02:30:59,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:30:59,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 02:30:59,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:30:59,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 02:30:59,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 02:31:00,123 INFO L87 Difference]: Start difference. First operand has 378266 states, 374331 states have (on average 5.6353040490902435) internal successors, (2109469), 378265 states have internal predecessors, (2109469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:31:05,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:31:05,376 INFO L93 Difference]: Finished difference Result 289851 states and 1138088 transitions. [2022-07-13 02:31:05,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 02:31:05,376 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-07-13 02:31:05,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:31:08,080 INFO L225 Difference]: With dead ends: 289851 [2022-07-13 02:31:08,080 INFO L226 Difference]: Without dead ends: 289114 [2022-07-13 02:31:08,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 02:31:08,081 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:31:08,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:31:09,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289114 states.