./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 ae007674 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-dev-ae00767 [2021-12-28 08:49:38,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 08:49:38,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 08:49:38,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 08:49:38,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 08:49:38,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 08:49:38,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 08:49:38,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 08:49:38,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 08:49:38,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 08:49:38,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 08:49:38,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 08:49:38,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 08:49:38,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 08:49:38,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 08:49:38,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 08:49:38,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 08:49:38,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 08:49:38,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 08:49:38,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 08:49:38,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 08:49:38,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 08:49:38,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 08:49:38,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 08:49:38,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 08:49:38,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 08:49:38,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 08:49:38,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 08:49:38,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 08:49:38,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 08:49:38,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 08:49:38,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 08:49:38,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 08:49:38,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 08:49:38,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 08:49:38,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 08:49:38,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 08:49:38,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 08:49:38,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 08:49:38,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 08:49:38,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 08:49:38,139 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-28 08:49:38,166 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 08:49:38,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 08:49:38,167 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 08:49:38,167 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 08:49:38,168 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 08:49:38,168 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 08:49:38,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 08:49:38,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 08:49:38,169 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 08:49:38,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 08:49:38,170 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 08:49:38,170 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 08:49:38,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 08:49:38,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 08:49:38,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 08:49:38,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 08:49:38,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 08:49:38,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 08:49:38,171 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-28 08:49:38,172 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 08:49:38,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 08:49:38,172 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 08:49:38,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 08:49:38,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 08:49:38,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 08:49:38,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 08:49:38,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 08:49:38,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 08:49:38,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 08:49:38,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 08:49:38,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 08:49:38,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 08:49:38,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 08:49:38,174 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b8a2d8a35be535b4f8c573d98b12278b19043c6b0cec82927e2ac6d7dd36ebb [2021-12-28 08:49:38,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 08:49:38,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 08:49:38,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 08:49:38,460 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 08:49:38,460 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 08:49:38,461 INFO L432 ainManager$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 [2021-12-28 08:49:38,501 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaa7871d8/3cefbbbfa4f944ff87560b1949a64a22/FLAG30bb7f21b [2021-12-28 08:49:38,900 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 08:49:38,901 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 [2021-12-28 08:49:38,910 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaa7871d8/3cefbbbfa4f944ff87560b1949a64a22/FLAG30bb7f21b [2021-12-28 08:49:38,921 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaa7871d8/3cefbbbfa4f944ff87560b1949a64a22 [2021-12-28 08:49:38,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 08:49:38,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 08:49:38,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 08:49:38,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 08:49:38,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 08:49:38,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 08:49:38" (1/1) ... [2021-12-28 08:49:38,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ee2e3d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:49:38, skipping insertion in model container [2021-12-28 08:49:38,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 08:49:38" (1/1) ... [2021-12-28 08:49:38,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 08:49:38,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 08:49:39,077 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] [2021-12-28 08:49:39,165 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 08:49:39,173 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 08:49:39,181 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] [2021-12-28 08:49:39,197 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 08:49:39,224 INFO L208 MainTranslator]: Completed translation [2021-12-28 08:49:39,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:49:39 WrapperNode [2021-12-28 08:49:39,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 08:49:39,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 08:49:39,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 08:49:39,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 08:49:39,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:49:39" (1/1) ... [2021-12-28 08:49:39,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:49:39" (1/1) ... [2021-12-28 08:49:39,255 INFO L137 Inliner]: procedures = 163, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 113 [2021-12-28 08:49:39,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 08:49:39,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 08:49:39,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 08:49:39,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 08:49:39,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:49:39" (1/1) ... [2021-12-28 08:49:39,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:49:39" (1/1) ... [2021-12-28 08:49:39,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:49:39" (1/1) ... [2021-12-28 08:49:39,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:49:39" (1/1) ... [2021-12-28 08:49:39,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:49:39" (1/1) ... [2021-12-28 08:49:39,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:49:39" (1/1) ... [2021-12-28 08:49:39,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:49:39" (1/1) ... [2021-12-28 08:49:39,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 08:49:39,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 08:49:39,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 08:49:39,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 08:49:39,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:49:39" (1/1) ... [2021-12-28 08:49:39,310 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 08:49:39,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:49:39,345 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) [2021-12-28 08:49:39,366 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 [2021-12-28 08:49:39,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 08:49:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-28 08:49:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 08:49:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 08:49:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-28 08:49:39,374 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-28 08:49:39,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 08:49:39,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 08:49:39,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 08:49:39,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 08:49:39,380 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-28 08:49:39,452 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 08:49:39,453 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 08:49:39,633 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 08:49:39,661 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 08:49:39,661 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 08:49:39,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 08:49:39 BoogieIcfgContainer [2021-12-28 08:49:39,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 08:49:39,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 08:49:39,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 08:49:39,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 08:49:39,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 08:49:38" (1/3) ... [2021-12-28 08:49:39,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2df60e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 08:49:39, skipping insertion in model container [2021-12-28 08:49:39,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:49:39" (2/3) ... [2021-12-28 08:49:39,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2df60e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 08:49:39, skipping insertion in model container [2021-12-28 08:49:39,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 08:49:39" (3/3) ... [2021-12-28 08:49:39,668 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2021-12-28 08:49:39,671 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-28 08:49:39,671 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 08:49:39,671 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-28 08:49:39,671 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-28 08:49:39,715 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,719 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,719 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,719 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,719 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,719 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,720 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,720 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,720 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,720 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,721 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,721 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,721 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,724 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,724 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,724 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,724 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,725 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,726 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,727 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,729 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,730 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,735 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,737 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,737 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,737 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,738 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,739 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,739 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,739 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,740 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,740 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,740 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,740 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,740 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,741 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,741 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,741 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,741 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,741 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,741 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,742 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,742 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,742 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,742 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,742 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,744 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,744 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,745 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,745 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,745 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,746 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,747 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,748 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,749 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,750 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,750 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,751 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,751 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,751 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,751 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,752 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,752 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,752 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,752 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,752 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,753 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,754 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,754 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,754 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,754 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,754 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,754 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,755 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,755 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,755 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,757 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,762 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,763 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,763 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,763 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,763 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,763 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,763 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,763 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,764 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,764 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,764 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,764 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,764 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,764 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 08:49:39,766 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-28 08:49:39,802 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 08:49:39,808 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 [2021-12-28 08:49:39,808 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-12-28 08:49:39,825 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-12-28 08:49:39,834 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 134 transitions, 273 flow [2021-12-28 08:49:39,836 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 134 transitions, 273 flow [2021-12-28 08:49:39,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 133 places, 134 transitions, 273 flow [2021-12-28 08:49:39,906 INFO L129 PetriNetUnfolder]: 4/137 cut-off events. [2021-12-28 08:49:39,907 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-28 08:49:39,909 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. [2021-12-28 08:49:39,913 INFO L116 LiptonReduction]: Number of co-enabled transitions 3364 [2021-12-28 08:49:44,277 INFO L131 LiptonReduction]: Checked pairs total: 9929 [2021-12-28 08:49:44,277 INFO L133 LiptonReduction]: Total number of compositions: 135 [2021-12-28 08:49:44,290 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 34 transitions, 73 flow [2021-12-28 08:49:44,342 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) [2021-12-28 08:49:44,346 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) [2021-12-28 08:49:44,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-12-28 08:49:44,371 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:49:44,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-12-28 08:49:44,372 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-28 08:49:44,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:49:44,377 INFO L85 PathProgramCache]: Analyzing trace with hash 15664268, now seen corresponding path program 1 times [2021-12-28 08:49:44,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:49:44,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266996158] [2021-12-28 08:49:44,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:49:44,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:49:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:49:44,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:49:44,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:49:44,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266996158] [2021-12-28 08:49:44,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266996158] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:49:44,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:49:44,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 08:49:44,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408163144] [2021-12-28 08:49:44,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:49:44,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-28 08:49:44,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:49:44,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-28 08:49:44,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-28 08:49:44,513 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) [2021-12-28 08:49:44,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:49:44,550 INFO L93 Difference]: Finished difference Result 174 states and 324 transitions. [2021-12-28 08:49:44,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-28 08:49:44,552 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 [2021-12-28 08:49:44,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:49:44,558 INFO L225 Difference]: With dead ends: 174 [2021-12-28 08:49:44,558 INFO L226 Difference]: Without dead ends: 160 [2021-12-28 08:49:44,559 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 [2021-12-28 08:49:44,561 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 [2021-12-28 08:49:44,561 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] [2021-12-28 08:49:44,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-12-28 08:49:44,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2021-12-28 08:49:44,585 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) [2021-12-28 08:49:44,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 295 transitions. [2021-12-28 08:49:44,587 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 295 transitions. Word has length 4 [2021-12-28 08:49:44,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:49:44,588 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 295 transitions. [2021-12-28 08:49:44,588 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) [2021-12-28 08:49:44,588 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 295 transitions. [2021-12-28 08:49:44,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-28 08:49:44,588 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:49:44,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-28 08:49:44,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 08:49:44,589 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-28 08:49:44,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:49:44,589 INFO L85 PathProgramCache]: Analyzing trace with hash -2128326776, now seen corresponding path program 1 times [2021-12-28 08:49:44,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:49:44,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133842503] [2021-12-28 08:49:44,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:49:44,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:49:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:49:44,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:49:44,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:49:44,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133842503] [2021-12-28 08:49:44,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133842503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:49:44,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:49:44,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-12-28 08:49:44,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755314971] [2021-12-28 08:49:44,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:49:44,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 08:49:44,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:49:44,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 08:49:44,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 08:49:44,642 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) [2021-12-28 08:49:44,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:49:44,663 INFO L93 Difference]: Finished difference Result 147 states and 269 transitions. [2021-12-28 08:49:44,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 08:49:44,663 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 [2021-12-28 08:49:44,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:49:44,664 INFO L225 Difference]: With dead ends: 147 [2021-12-28 08:49:44,664 INFO L226 Difference]: Without dead ends: 147 [2021-12-28 08:49:44,665 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 [2021-12-28 08:49:44,665 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 [2021-12-28 08:49:44,666 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] [2021-12-28 08:49:44,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-12-28 08:49:44,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2021-12-28 08:49:44,671 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) [2021-12-28 08:49:44,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 269 transitions. [2021-12-28 08:49:44,672 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 269 transitions. Word has length 6 [2021-12-28 08:49:44,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:49:44,673 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 269 transitions. [2021-12-28 08:49:44,673 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) [2021-12-28 08:49:44,673 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 269 transitions. [2021-12-28 08:49:44,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-28 08:49:44,673 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:49:44,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-28 08:49:44,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 08:49:44,674 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-28 08:49:44,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:49:44,674 INFO L85 PathProgramCache]: Analyzing trace with hash -2128326855, now seen corresponding path program 1 times [2021-12-28 08:49:44,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:49:44,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764561133] [2021-12-28 08:49:44,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:49:44,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:49:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:49:44,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:49:44,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:49:44,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764561133] [2021-12-28 08:49:44,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764561133] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:49:44,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:49:44,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-12-28 08:49:44,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928101742] [2021-12-28 08:49:44,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:49:44,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 08:49:44,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:49:44,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 08:49:44,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 08:49:44,712 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) [2021-12-28 08:49:44,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:49:44,728 INFO L93 Difference]: Finished difference Result 134 states and 243 transitions. [2021-12-28 08:49:44,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 08:49:44,729 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 [2021-12-28 08:49:44,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:49:44,730 INFO L225 Difference]: With dead ends: 134 [2021-12-28 08:49:44,730 INFO L226 Difference]: Without dead ends: 114 [2021-12-28 08:49:44,730 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 [2021-12-28 08:49:44,731 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 [2021-12-28 08:49:44,731 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] [2021-12-28 08:49:44,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-12-28 08:49:44,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-12-28 08:49:44,735 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) [2021-12-28 08:49:44,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 204 transitions. [2021-12-28 08:49:44,736 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 204 transitions. Word has length 6 [2021-12-28 08:49:44,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:49:44,736 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 204 transitions. [2021-12-28 08:49:44,736 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) [2021-12-28 08:49:44,736 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 204 transitions. [2021-12-28 08:49:44,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-28 08:49:44,737 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:49:44,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:49:44,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 08:49:44,737 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-28 08:49:44,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:49:44,738 INFO L85 PathProgramCache]: Analyzing trace with hash 585345918, now seen corresponding path program 1 times [2021-12-28 08:49:44,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:49:44,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194888316] [2021-12-28 08:49:44,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:49:44,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:49:44,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:49:44,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:49:44,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:49:44,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194888316] [2021-12-28 08:49:44,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194888316] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:49:44,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:49:44,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 08:49:44,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753095936] [2021-12-28 08:49:44,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:49:44,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 08:49:44,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:49:44,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 08:49:44,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 08:49:44,774 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) [2021-12-28 08:49:44,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:49:44,835 INFO L93 Difference]: Finished difference Result 136 states and 235 transitions. [2021-12-28 08:49:44,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 08:49:44,836 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 [2021-12-28 08:49:44,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:49:44,836 INFO L225 Difference]: With dead ends: 136 [2021-12-28 08:49:44,836 INFO L226 Difference]: Without dead ends: 94 [2021-12-28 08:49:44,837 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 [2021-12-28 08:49:44,837 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 [2021-12-28 08:49:44,838 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] [2021-12-28 08:49:44,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-12-28 08:49:44,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-12-28 08:49:44,841 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) [2021-12-28 08:49:44,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 164 transitions. [2021-12-28 08:49:44,841 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 164 transitions. Word has length 8 [2021-12-28 08:49:44,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:49:44,842 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 164 transitions. [2021-12-28 08:49:44,842 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) [2021-12-28 08:49:44,842 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 164 transitions. [2021-12-28 08:49:44,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-28 08:49:44,842 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:49:44,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:49:44,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 08:49:44,843 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-28 08:49:44,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:49:44,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1824519450, now seen corresponding path program 1 times [2021-12-28 08:49:44,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:49:44,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684354571] [2021-12-28 08:49:44,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:49:44,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:49:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:49:44,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:49:44,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:49:44,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684354571] [2021-12-28 08:49:44,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684354571] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:49:44,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:49:44,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 08:49:44,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382903889] [2021-12-28 08:49:44,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:49:44,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 08:49:44,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:49:44,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 08:49:44,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:49:44,909 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) [2021-12-28 08:49:44,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:49:44,942 INFO L93 Difference]: Finished difference Result 84 states and 145 transitions. [2021-12-28 08:49:44,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 08:49:44,947 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 [2021-12-28 08:49:44,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:49:44,947 INFO L225 Difference]: With dead ends: 84 [2021-12-28 08:49:44,947 INFO L226 Difference]: Without dead ends: 84 [2021-12-28 08:49:44,948 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 [2021-12-28 08:49:44,948 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 [2021-12-28 08:49:44,950 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] [2021-12-28 08:49:44,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-12-28 08:49:44,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-12-28 08:49:44,955 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) [2021-12-28 08:49:44,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 145 transitions. [2021-12-28 08:49:44,956 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 145 transitions. Word has length 12 [2021-12-28 08:49:44,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:49:44,956 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 145 transitions. [2021-12-28 08:49:44,956 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) [2021-12-28 08:49:44,956 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 145 transitions. [2021-12-28 08:49:44,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-28 08:49:44,958 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:49:44,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:49:44,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 08:49:44,958 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-28 08:49:44,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:49:44,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1824519399, now seen corresponding path program 1 times [2021-12-28 08:49:44,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:49:44,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060498882] [2021-12-28 08:49:44,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:49:44,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:49:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:49:45,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:49:45,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:49:45,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060498882] [2021-12-28 08:49:45,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060498882] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:49:45,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:49:45,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 08:49:45,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790183877] [2021-12-28 08:49:45,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:49:45,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 08:49:45,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:49:45,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 08:49:45,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:49:45,021 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) [2021-12-28 08:49:45,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:49:45,062 INFO L93 Difference]: Finished difference Result 80 states and 126 transitions. [2021-12-28 08:49:45,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 08:49:45,062 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 [2021-12-28 08:49:45,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:49:45,063 INFO L225 Difference]: With dead ends: 80 [2021-12-28 08:49:45,063 INFO L226 Difference]: Without dead ends: 78 [2021-12-28 08:49:45,063 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 [2021-12-28 08:49:45,064 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 [2021-12-28 08:49:45,064 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] [2021-12-28 08:49:45,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-12-28 08:49:45,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 62. [2021-12-28 08:49:45,066 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) [2021-12-28 08:49:45,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 95 transitions. [2021-12-28 08:49:45,067 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 95 transitions. Word has length 12 [2021-12-28 08:49:45,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:49:45,067 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 95 transitions. [2021-12-28 08:49:45,067 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) [2021-12-28 08:49:45,067 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 95 transitions. [2021-12-28 08:49:45,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-28 08:49:45,067 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:49:45,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:49:45,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 08:49:45,068 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-28 08:49:45,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:49:45,068 INFO L85 PathProgramCache]: Analyzing trace with hash -85343621, now seen corresponding path program 1 times [2021-12-28 08:49:45,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:49:45,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992222643] [2021-12-28 08:49:45,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:49:45,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:49:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:49:45,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:49:45,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:49:45,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992222643] [2021-12-28 08:49:45,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992222643] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:49:45,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:49:45,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 08:49:45,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608624352] [2021-12-28 08:49:45,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:49:45,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 08:49:45,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:49:45,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 08:49:45,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-28 08:49:45,135 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) [2021-12-28 08:49:45,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:49:45,163 INFO L93 Difference]: Finished difference Result 56 states and 86 transitions. [2021-12-28 08:49:45,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 08:49:45,164 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 [2021-12-28 08:49:45,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:49:45,164 INFO L225 Difference]: With dead ends: 56 [2021-12-28 08:49:45,165 INFO L226 Difference]: Without dead ends: 53 [2021-12-28 08:49:45,165 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 [2021-12-28 08:49:45,165 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 [2021-12-28 08:49:45,166 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] [2021-12-28 08:49:45,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-12-28 08:49:45,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-12-28 08:49:45,167 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) [2021-12-28 08:49:45,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 83 transitions. [2021-12-28 08:49:45,168 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 83 transitions. Word has length 14 [2021-12-28 08:49:45,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:49:45,168 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 83 transitions. [2021-12-28 08:49:45,168 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) [2021-12-28 08:49:45,168 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 83 transitions. [2021-12-28 08:49:45,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-28 08:49:45,170 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:49:45,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:49:45,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 08:49:45,170 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-28 08:49:45,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:49:45,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1725003184, now seen corresponding path program 1 times [2021-12-28 08:49:45,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:49:45,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049897993] [2021-12-28 08:49:45,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:49:45,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:49:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 08:49:45,215 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 08:49:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 08:49:45,259 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 08:49:45,259 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-28 08:49:45,260 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2021-12-28 08:49:45,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2021-12-28 08:49:45,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 7 remaining) [2021-12-28 08:49:45,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 7 remaining) [2021-12-28 08:49:45,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2021-12-28 08:49:45,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2021-12-28 08:49:45,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2021-12-28 08:49:45,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 08:49:45,265 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:49:45,268 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-28 08:49:45,268 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-28 08:49:45,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 08:49:45 BasicIcfg [2021-12-28 08:49:45,312 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-28 08:49:45,313 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 08:49:45,313 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 08:49:45,313 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 08:49:45,314 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 08:49:39" (3/4) ... [2021-12-28 08:49:45,315 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-28 08:49:45,359 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 08:49:45,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 08:49:45,360 INFO L158 Benchmark]: Toolchain (without parser) took 6434.82ms. Allocated memory was 50.3MB in the beginning and 107.0MB in the end (delta: 56.6MB). Free memory was 24.4MB in the beginning and 67.4MB in the end (delta: -43.0MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2021-12-28 08:49:45,360 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory was 32.4MB in the beginning and 32.3MB in the end (delta: 32.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 08:49:45,360 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.23ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 24.2MB in the beginning and 34.6MB in the end (delta: -10.4MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-12-28 08:49:45,360 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.07ms. Allocated memory is still 60.8MB. Free memory was 34.4MB in the beginning and 32.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 08:49:45,361 INFO L158 Benchmark]: Boogie Preprocessor took 42.09ms. Allocated memory is still 60.8MB. Free memory was 32.3MB in the beginning and 31.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 08:49:45,361 INFO L158 Benchmark]: RCFGBuilder took 363.70ms. Allocated memory is still 60.8MB. Free memory was 31.0MB in the beginning and 30.6MB in the end (delta: 377.1kB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2021-12-28 08:49:45,361 INFO L158 Benchmark]: TraceAbstraction took 5648.77ms. Allocated memory was 60.8MB in the beginning and 107.0MB in the end (delta: 46.1MB). Free memory was 30.1MB in the beginning and 71.6MB in the end (delta: -41.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2021-12-28 08:49:45,361 INFO L158 Benchmark]: Witness Printer took 46.00ms. Allocated memory is still 107.0MB. Free memory was 71.6MB in the beginning and 67.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-28 08:49:45,363 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 50.3MB. Free memory was 32.4MB in the beginning and 32.3MB in the end (delta: 32.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.23ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 24.2MB in the beginning and 34.6MB in the end (delta: -10.4MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.07ms. Allocated memory is still 60.8MB. Free memory was 34.4MB in the beginning and 32.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.09ms. Allocated memory is still 60.8MB. Free memory was 32.3MB in the beginning and 31.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 363.70ms. Allocated memory is still 60.8MB. Free memory was 31.0MB in the beginning and 30.6MB in the end (delta: 377.1kB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5648.77ms. Allocated memory was 60.8MB in the beginning and 107.0MB in the end (delta: 46.1MB). Free memory was 30.1MB in the beginning and 71.6MB in the end (delta: -41.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Witness Printer took 46.00ms. Allocated memory is still 107.0MB. Free memory was 71.6MB in the beginning and 67.4MB 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: 4.4s, 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: 250, positive: 108, positive conditional: 0, positive unconditional: 108, negative: 142, negative conditional: 0, negative unconditional: 142, 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: 5.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 149 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 149 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 0.1s 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! [2021-12-28 08:49:45,400 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)