./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b 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/36-apron_22-traces-write-centered-vs-meet-mutex_true.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 7b8a2d8a35be535b4f8c573d98b12278b19043c6b0cec82927e2ac6d7dd36ebb --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 22:45:43,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 22:45:43,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 22:45:43,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 22:45:43,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 22:45:43,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 22:45:43,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 22:45:43,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 22:45:43,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 22:45:43,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 22:45:43,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 22:45:43,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 22:45:43,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 22:45:43,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 22:45:43,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 22:45:43,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 22:45:43,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 22:45:43,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 22:45:43,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 22:45:43,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 22:45:43,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 22:45:43,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 22:45:43,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 22:45:43,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 22:45:43,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 22:45:43,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 22:45:43,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 22:45:43,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 22:45:43,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 22:45:43,136 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 22:45:43,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 22:45:43,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 22:45:43,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 22:45:43,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 22:45:43,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 22:45:43,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 22:45:43,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 22:45:43,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 22:45:43,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 22:45:43,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 22:45:43,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 22:45:43,144 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-14 22:45:43,160 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 22:45:43,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 22:45:43,160 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 22:45:43,160 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 22:45:43,161 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 22:45:43,161 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 22:45:43,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 22:45:43,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 22:45:43,162 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 22:45:43,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 22:45:43,162 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 22:45:43,162 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 22:45:43,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 22:45:43,162 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 22:45:43,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 22:45:43,163 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 22:45:43,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 22:45:43,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 22:45:43,163 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-14 22:45:43,163 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 22:45:43,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 22:45:43,163 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 22:45:43,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 22:45:43,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 22:45:43,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 22:45:43,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 22:45:43,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 22:45:43,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 22:45:43,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 22:45:43,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 22:45:43,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 22:45:43,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 22:45:43,165 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 22:45:43,165 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 22:45:43,165 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b8a2d8a35be535b4f8c573d98b12278b19043c6b0cec82927e2ac6d7dd36ebb [2021-12-14 22:45:43,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 22:45:43,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 22:45:43,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 22:45:43,356 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 22:45:43,356 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 22:45:43,357 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2021-12-14 22:45:43,416 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5aac3133/3f4c11fe79d347a79bbcbcf130c4c76e/FLAG553944364 [2021-12-14 22:45:43,805 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 22:45:43,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2021-12-14 22:45:43,828 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5aac3133/3f4c11fe79d347a79bbcbcf130c4c76e/FLAG553944364 [2021-12-14 22:45:43,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5aac3133/3f4c11fe79d347a79bbcbcf130c4c76e [2021-12-14 22:45:43,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 22:45:43,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 22:45:43,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 22:45:43,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 22:45:43,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 22:45:43,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:45:43" (1/1) ... [2021-12-14 22:45:43,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e120dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:43, skipping insertion in model container [2021-12-14 22:45:43,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:45:43" (1/1) ... [2021-12-14 22:45:43,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 22:45:43,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 22:45:44,003 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/36-apron_22-traces-write-centered-vs-meet-mutex_true.i[1107,1120] [2021-12-14 22:45:44,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 22:45:44,142 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 22:45:44,153 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/36-apron_22-traces-write-centered-vs-meet-mutex_true.i[1107,1120] [2021-12-14 22:45:44,188 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 22:45:44,216 INFO L208 MainTranslator]: Completed translation [2021-12-14 22:45:44,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:44 WrapperNode [2021-12-14 22:45:44,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 22:45:44,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 22:45:44,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 22:45:44,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 22:45:44,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:44" (1/1) ... [2021-12-14 22:45:44,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:44" (1/1) ... [2021-12-14 22:45:44,252 INFO L137 Inliner]: procedures = 163, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 113 [2021-12-14 22:45:44,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 22:45:44,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 22:45:44,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 22:45:44,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 22:45:44,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:44" (1/1) ... [2021-12-14 22:45:44,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:44" (1/1) ... [2021-12-14 22:45:44,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:44" (1/1) ... [2021-12-14 22:45:44,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:44" (1/1) ... [2021-12-14 22:45:44,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:44" (1/1) ... [2021-12-14 22:45:44,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:44" (1/1) ... [2021-12-14 22:45:44,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:44" (1/1) ... [2021-12-14 22:45:44,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 22:45:44,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 22:45:44,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 22:45:44,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 22:45:44,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:44" (1/1) ... [2021-12-14 22:45:44,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 22:45:44,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:45:44,306 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 22:45:44,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 22:45:44,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 22:45:44,334 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-14 22:45:44,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 22:45:44,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 22:45:44,334 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-14 22:45:44,335 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-14 22:45:44,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 22:45:44,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 22:45:44,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 22:45:44,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 22:45:44,336 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-14 22:45:44,403 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 22:45:44,404 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 22:45:44,606 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 22:45:44,612 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 22:45:44,612 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 22:45:44,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:45:44 BoogieIcfgContainer [2021-12-14 22:45:44,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 22:45:44,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 22:45:44,615 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 22:45:44,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 22:45:44,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:45:43" (1/3) ... [2021-12-14 22:45:44,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14225ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:45:44, skipping insertion in model container [2021-12-14 22:45:44,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:44" (2/3) ... [2021-12-14 22:45:44,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14225ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:45:44, skipping insertion in model container [2021-12-14 22:45:44,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:45:44" (3/3) ... [2021-12-14 22:45:44,620 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2021-12-14 22:45:44,627 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-14 22:45:44,627 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 22:45:44,628 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-14 22:45:44,628 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-14 22:45:44,649 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,649 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,650 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,650 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,650 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,650 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,650 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,650 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,651 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,651 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,651 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,651 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,651 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,652 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,652 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,652 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,652 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,652 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,652 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,653 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,653 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,653 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,653 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,653 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,653 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,653 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,654 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,654 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,654 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,654 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,654 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,654 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,655 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,655 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,655 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,655 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,655 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,655 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,656 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,656 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,656 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,656 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,656 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,656 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,657 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,657 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,657 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,657 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,657 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,657 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,658 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,659 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,660 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,661 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,662 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,663 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,664 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,665 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,666 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,667 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,668 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,670 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,671 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,672 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,672 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,672 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,672 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,672 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 22:45:44,675 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-14 22:45:44,711 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 22:45:44,715 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 22:45:44,715 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-12-14 22:45:44,724 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-12-14 22:45:44,732 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 134 transitions, 273 flow [2021-12-14 22:45:44,734 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 134 transitions, 273 flow [2021-12-14 22:45:44,735 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 133 places, 134 transitions, 273 flow [2021-12-14 22:45:44,768 INFO L129 PetriNetUnfolder]: 4/137 cut-off events. [2021-12-14 22:45:44,769 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-14 22:45:44,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 137 events. 4/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2021-12-14 22:45:44,776 INFO L116 LiptonReduction]: Number of co-enabled transitions 3364 [2021-12-14 22:45:49,077 INFO L131 LiptonReduction]: Checked pairs total: 9929 [2021-12-14 22:45:49,077 INFO L133 LiptonReduction]: Total number of compositions: 135 [2021-12-14 22:45:49,083 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 34 transitions, 73 flow [2021-12-14 22:45:49,094 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 174 states, 164 states have (on average 2.1158536585365852) internal successors, (347), 173 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:45:49,096 INFO L276 IsEmpty]: Start isEmpty. Operand has 174 states, 164 states have (on average 2.1158536585365852) internal successors, (347), 173 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:45:49,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-12-14 22:45:49,099 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:45:49,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-12-14 22:45:49,099 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-14 22:45:49,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:45:49,103 INFO L85 PathProgramCache]: Analyzing trace with hash 15664268, now seen corresponding path program 1 times [2021-12-14 22:45:49,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:45:49,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166243625] [2021-12-14 22:45:49,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:45:49,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:45:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:45:49,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:45:49,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:45:49,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166243625] [2021-12-14 22:45:49,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166243625] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:45:49,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:45:49,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 22:45:49,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064455098] [2021-12-14 22:45:49,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:45:49,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-14 22:45:49,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:45:49,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-14 22:45:49,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 22:45:49,243 INFO L87 Difference]: Start difference. First operand has 174 states, 164 states have (on average 2.1158536585365852) internal successors, (347), 173 states have internal predecessors, (347), 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, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:45:49,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:45:49,280 INFO L93 Difference]: Finished difference Result 174 states and 324 transitions. [2021-12-14 22:45:49,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-14 22:45:49,282 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-12-14 22:45:49,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:45:49,288 INFO L225 Difference]: With dead ends: 174 [2021-12-14 22:45:49,288 INFO L226 Difference]: Without dead ends: 160 [2021-12-14 22:45:49,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 22:45:49,291 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:45:49,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:45:49,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-12-14 22:45:49,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2021-12-14 22:45:49,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 152 states have (on average 1.9407894736842106) internal successors, (295), 159 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:45:49,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 295 transitions. [2021-12-14 22:45:49,327 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 295 transitions. Word has length 4 [2021-12-14 22:45:49,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:45:49,327 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 295 transitions. [2021-12-14 22:45:49,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:45:49,328 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 295 transitions. [2021-12-14 22:45:49,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-14 22:45:49,329 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:45:49,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-14 22:45:49,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 22:45:49,330 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-14 22:45:49,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:45:49,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2128326776, now seen corresponding path program 1 times [2021-12-14 22:45:49,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:45:49,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280606004] [2021-12-14 22:45:49,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:45:49,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:45:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:45:49,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:45:49,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:45:49,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280606004] [2021-12-14 22:45:49,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280606004] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:45:49,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:45:49,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-12-14 22:45:49,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799278020] [2021-12-14 22:45:49,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:45:49,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 22:45:49,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:45:49,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 22:45:49,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 22:45:49,384 INFO L87 Difference]: Start difference. First operand 160 states and 295 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2021-12-14 22:45:49,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:45:49,404 INFO L93 Difference]: Finished difference Result 147 states and 269 transitions. [2021-12-14 22:45:49,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 22:45:49,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-14 22:45:49,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:45:49,405 INFO L225 Difference]: With dead ends: 147 [2021-12-14 22:45:49,405 INFO L226 Difference]: Without dead ends: 147 [2021-12-14 22:45:49,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 22:45:49,406 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:45:49,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 7 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:45:49,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-12-14 22:45:49,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2021-12-14 22:45:49,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 142 states have (on average 1.8943661971830985) internal successors, (269), 146 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:45:49,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 269 transitions. [2021-12-14 22:45:49,413 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 269 transitions. Word has length 6 [2021-12-14 22:45:49,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:45:49,414 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 269 transitions. [2021-12-14 22:45:49,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2021-12-14 22:45:49,414 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 269 transitions. [2021-12-14 22:45:49,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-14 22:45:49,414 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:45:49,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-14 22:45:49,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 22:45:49,415 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-14 22:45:49,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:45:49,415 INFO L85 PathProgramCache]: Analyzing trace with hash -2128326855, now seen corresponding path program 1 times [2021-12-14 22:45:49,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:45:49,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435798813] [2021-12-14 22:45:49,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:45:49,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:45:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:45:49,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:45:49,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:45:49,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435798813] [2021-12-14 22:45:49,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435798813] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:45:49,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:45:49,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-12-14 22:45:49,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828331368] [2021-12-14 22:45:49,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:45:49,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 22:45:49,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:45:49,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 22:45:49,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 22:45:49,445 INFO L87 Difference]: Start difference. First operand 147 states and 269 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2021-12-14 22:45:49,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:45:49,462 INFO L93 Difference]: Finished difference Result 134 states and 243 transitions. [2021-12-14 22:45:49,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 22:45:49,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-14 22:45:49,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:45:49,463 INFO L225 Difference]: With dead ends: 134 [2021-12-14 22:45:49,463 INFO L226 Difference]: Without dead ends: 114 [2021-12-14 22:45:49,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 22:45:49,464 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:45:49,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 7 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:45:49,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-12-14 22:45:49,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-12-14 22:45:49,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 112 states have (on average 1.8214285714285714) internal successors, (204), 113 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:45:49,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 204 transitions. [2021-12-14 22:45:49,469 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 204 transitions. Word has length 6 [2021-12-14 22:45:49,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:45:49,469 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 204 transitions. [2021-12-14 22:45:49,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2021-12-14 22:45:49,470 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 204 transitions. [2021-12-14 22:45:49,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-14 22:45:49,470 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:45:49,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:45:49,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 22:45:49,470 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-14 22:45:49,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:45:49,471 INFO L85 PathProgramCache]: Analyzing trace with hash 585345918, now seen corresponding path program 1 times [2021-12-14 22:45:49,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:45:49,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167128117] [2021-12-14 22:45:49,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:45:49,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:45:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:45:49,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:45:49,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:45:49,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167128117] [2021-12-14 22:45:49,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167128117] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:45:49,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:45:49,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 22:45:49,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029914133] [2021-12-14 22:45:49,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:45:49,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 22:45:49,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:45:49,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 22:45:49,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 22:45:49,519 INFO L87 Difference]: Start difference. First operand 114 states and 204 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:45:49,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:45:49,574 INFO L93 Difference]: Finished difference Result 136 states and 235 transitions. [2021-12-14 22:45:49,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 22:45:49,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2021-12-14 22:45:49,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:45:49,575 INFO L225 Difference]: With dead ends: 136 [2021-12-14 22:45:49,575 INFO L226 Difference]: Without dead ends: 94 [2021-12-14 22:45:49,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:45:49,576 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 19 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:45:49,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 28 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:45:49,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-12-14 22:45:49,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-12-14 22:45:49,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 92 states have (on average 1.7826086956521738) internal successors, (164), 93 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:45:49,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 164 transitions. [2021-12-14 22:45:49,580 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 164 transitions. Word has length 8 [2021-12-14 22:45:49,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:45:49,580 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 164 transitions. [2021-12-14 22:45:49,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:45:49,581 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 164 transitions. [2021-12-14 22:45:49,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-14 22:45:49,581 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:45:49,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:45:49,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 22:45:49,582 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-14 22:45:49,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:45:49,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1824519450, now seen corresponding path program 1 times [2021-12-14 22:45:49,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:45:49,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762509329] [2021-12-14 22:45:49,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:45:49,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:45:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:45:49,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:45:49,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:45:49,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762509329] [2021-12-14 22:45:49,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762509329] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:45:49,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:45:49,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 22:45:49,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083536303] [2021-12-14 22:45:49,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:45:49,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 22:45:49,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:45:49,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 22:45:49,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:45:49,621 INFO L87 Difference]: Start difference. First operand 94 states and 164 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2021-12-14 22:45:49,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:45:49,656 INFO L93 Difference]: Finished difference Result 84 states and 145 transitions. [2021-12-14 22:45:49,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 22:45:49,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-14 22:45:49,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:45:49,657 INFO L225 Difference]: With dead ends: 84 [2021-12-14 22:45:49,658 INFO L226 Difference]: Without dead ends: 84 [2021-12-14 22:45:49,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-14 22:45:49,658 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 42 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:45:49,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 14 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:45:49,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-12-14 22:45:49,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-12-14 22:45:49,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 83 states have (on average 1.7469879518072289) internal successors, (145), 83 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:45:49,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 145 transitions. [2021-12-14 22:45:49,662 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 145 transitions. Word has length 12 [2021-12-14 22:45:49,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:45:49,662 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 145 transitions. [2021-12-14 22:45:49,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2021-12-14 22:45:49,662 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 145 transitions. [2021-12-14 22:45:49,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-14 22:45:49,663 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:45:49,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:45:49,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 22:45:49,663 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-14 22:45:49,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:45:49,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1824519399, now seen corresponding path program 1 times [2021-12-14 22:45:49,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:45:49,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236826841] [2021-12-14 22:45:49,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:45:49,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:45:49,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:45:49,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:45:49,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:45:49,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236826841] [2021-12-14 22:45:49,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236826841] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:45:49,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:45:49,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 22:45:49,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751515592] [2021-12-14 22:45:49,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:45:49,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 22:45:49,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:45:49,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 22:45:49,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:45:49,713 INFO L87 Difference]: Start difference. First operand 84 states and 145 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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) [2021-12-14 22:45:49,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:45:49,749 INFO L93 Difference]: Finished difference Result 80 states and 126 transitions. [2021-12-14 22:45:49,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 22:45:49,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-14 22:45:49,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:45:49,750 INFO L225 Difference]: With dead ends: 80 [2021-12-14 22:45:49,750 INFO L226 Difference]: Without dead ends: 78 [2021-12-14 22:45:49,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:45:49,751 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:45:49,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 6 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:45:49,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-12-14 22:45:49,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 62. [2021-12-14 22:45:49,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.5573770491803278) internal successors, (95), 61 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:45:49,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 95 transitions. [2021-12-14 22:45:49,754 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 95 transitions. Word has length 12 [2021-12-14 22:45:49,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:45:49,754 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 95 transitions. [2021-12-14 22:45:49,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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) [2021-12-14 22:45:49,755 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 95 transitions. [2021-12-14 22:45:49,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-14 22:45:49,755 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:45:49,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:45:49,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 22:45:49,756 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-14 22:45:49,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:45:49,756 INFO L85 PathProgramCache]: Analyzing trace with hash -85343621, now seen corresponding path program 1 times [2021-12-14 22:45:49,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:45:49,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779551186] [2021-12-14 22:45:49,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:45:49,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:45:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:45:49,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:45:49,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:45:49,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779551186] [2021-12-14 22:45:49,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779551186] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:45:49,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:45:49,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 22:45:49,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111524727] [2021-12-14 22:45:49,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:45:49,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 22:45:49,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:45:49,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 22:45:49,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-14 22:45:49,841 INFO L87 Difference]: Start difference. First operand 62 states and 95 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:45:49,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:45:49,879 INFO L93 Difference]: Finished difference Result 56 states and 86 transitions. [2021-12-14 22:45:49,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 22:45:49,879 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2021-12-14 22:45:49,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:45:49,880 INFO L225 Difference]: With dead ends: 56 [2021-12-14 22:45:49,880 INFO L226 Difference]: Without dead ends: 53 [2021-12-14 22:45:49,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-14 22:45:49,881 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 24 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:45:49,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 4 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:45:49,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-12-14 22:45:49,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-12-14 22:45:49,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.5961538461538463) internal successors, (83), 52 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:45:49,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 83 transitions. [2021-12-14 22:45:49,884 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 83 transitions. Word has length 14 [2021-12-14 22:45:49,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:45:49,884 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 83 transitions. [2021-12-14 22:45:49,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:45:49,884 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 83 transitions. [2021-12-14 22:45:49,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-14 22:45:49,886 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:45:49,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:45:49,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 22:45:49,886 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-14 22:45:49,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:45:49,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1725003184, now seen corresponding path program 1 times [2021-12-14 22:45:49,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:45:49,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117973467] [2021-12-14 22:45:49,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:45:49,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:45:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 22:45:49,916 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 22:45:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 22:45:49,954 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 22:45:49,954 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-14 22:45:49,955 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2021-12-14 22:45:49,956 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2021-12-14 22:45:49,957 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 7 remaining) [2021-12-14 22:45:49,957 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 7 remaining) [2021-12-14 22:45:49,957 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2021-12-14 22:45:49,957 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2021-12-14 22:45:49,957 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2021-12-14 22:45:49,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 22:45:49,959 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:45:49,964 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-14 22:45:49,964 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-14 22:45:50,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:45:50 BasicIcfg [2021-12-14 22:45:50,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-14 22:45:50,010 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 22:45:50,010 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 22:45:50,010 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 22:45:50,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:45:44" (3/4) ... [2021-12-14 22:45:50,012 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-14 22:45:50,053 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 22:45:50,054 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 22:45:50,054 INFO L158 Benchmark]: Toolchain (without parser) took 6213.63ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 88.4MB in the beginning and 62.3MB in the end (delta: 26.1MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2021-12-14 22:45:50,054 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 92.3MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 22:45:50,055 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.60ms. Allocated memory is still 121.6MB. Free memory was 88.2MB in the beginning and 89.3MB in the end (delta: -1.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-14 22:45:50,055 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.22ms. Allocated memory is still 121.6MB. Free memory was 89.3MB in the beginning and 87.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 22:45:50,055 INFO L158 Benchmark]: Boogie Preprocessor took 23.96ms. Allocated memory is still 121.6MB. Free memory was 87.2MB in the beginning and 85.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 22:45:50,055 INFO L158 Benchmark]: RCFGBuilder took 336.42ms. Allocated memory is still 121.6MB. Free memory was 85.4MB in the beginning and 71.3MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-14 22:45:50,056 INFO L158 Benchmark]: TraceAbstraction took 5394.48ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 70.7MB in the beginning and 66.5MB in the end (delta: 4.2MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2021-12-14 22:45:50,056 INFO L158 Benchmark]: Witness Printer took 43.94ms. Allocated memory is still 146.8MB. Free memory was 66.5MB in the beginning and 62.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-14 22:45:50,057 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 92.3MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.60ms. Allocated memory is still 121.6MB. Free memory was 88.2MB in the beginning and 89.3MB in the end (delta: -1.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.22ms. Allocated memory is still 121.6MB. Free memory was 89.3MB in the beginning and 87.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.96ms. Allocated memory is still 121.6MB. Free memory was 87.2MB in the beginning and 85.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 336.42ms. Allocated memory is still 121.6MB. Free memory was 85.4MB in the beginning and 71.3MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5394.48ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 70.7MB in the beginning and 66.5MB in the end (delta: 4.2MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. * Witness Printer took 43.94ms. Allocated memory is still 146.8MB. Free memory was 66.5MB in the beginning and 62.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.3s, 133 PlacesBefore, 34 PlacesAfterwards, 134 TransitionsBefore, 34 TransitionsAfterwards, 3364 CoEnabledTransitionPairs, 8 FixpointIterations, 47 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 22 ConcurrentYvCompositions, 1 ChoiceCompositions, 135 TotalNumberOfCompositions, 9929 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4784, positive: 4418, positive conditional: 0, positive unconditional: 4418, negative: 366, negative conditional: 0, negative unconditional: 366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2671, positive: 2571, positive conditional: 0, positive unconditional: 2571, negative: 100, negative conditional: 0, negative unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2671, positive: 2456, positive conditional: 0, positive unconditional: 2456, negative: 215, negative conditional: 0, negative unconditional: 215, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 215, positive: 115, positive conditional: 0, positive unconditional: 115, negative: 100, negative conditional: 0, negative unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 307, positive: 133, positive conditional: 0, positive unconditional: 133, negative: 174, negative conditional: 0, negative unconditional: 174, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4784, positive: 1847, positive conditional: 0, positive unconditional: 1847, negative: 266, negative conditional: 0, negative unconditional: 266, unknown: 2671, unknown conditional: 0, unknown unconditional: 2671] , Statistics on independence cache: Total cache size (in pairs): 254, Positive cache size: 216, Positive conditional cache size: 0, Positive unconditional cache size: 216, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 701]: integer overflow possible integer overflow possible We found a FailurePath: [L682] 0 int g = 0; [L683] 0 int h = 0; [L684] 0 int i = 0; [L685] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L686] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L687] 0 pthread_mutex_t C = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L710] 0 int x = __VERIFIER_nondet_int(); [L711] COND TRUE 0 x > -1000 [L712] 0 pthread_t id; [L713] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, id={6:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=2147483617] [L689] 1 int x = __VERIFIER_nondet_int(); [L690] 1 int y = __VERIFIER_nondet_int(); [L691] 1 int z = __VERIFIER_nondet_int(); [L692] COND TRUE 1 x < 1000 [L716] 0 i = 11 VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=11, id={6:0}, x=2147483617] [L717] 0 g = x [L718] EXPR 0 x - 17 [L718] 0 h = x - 17 VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483600, i=11, id={6:0}, x=2147483617] [L721] 0 h = x VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, id={6:0}, x=2147483617] [L695] 1 x = g VAL [A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, x=2147483617, y=0, z=-2] [L696] 1 y = h [L697] CALL 1 __VERIFIER_assert(y <= x) [L19] COND FALSE 1 !(!(cond)) [L697] RET 1 __VERIFIER_assert(y <= x) [L699] CALL 1 __VERIFIER_assert(x == y) [L19] COND FALSE 1 !(!(cond)) [L699] RET 1 __VERIFIER_assert(x == y) [L701] 1 x + 31 VAL [A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, x=2147483617, y=2147483617, z=-2] - UnprovableResult [Line: 718]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 186 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 149 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 149 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 237 IncrementalHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 50 mSDtfsCounter, 237 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 16 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 288 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-12-14 22:45:50,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)