/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:54:26,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:54:26,200 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:54:26,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:54:26,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:54:26,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:54:26,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:54:26,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:54:26,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:54:26,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:54:26,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:54:26,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:54:26,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:54:26,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:54:26,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:54:26,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:54:26,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:54:26,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:54:26,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:54:26,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:54:26,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:54:26,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:54:26,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:54:26,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:54:26,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:54:26,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:54:26,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:54:26,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:54:26,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:54:26,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:54:26,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:54:26,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:54:26,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:54:26,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:54:26,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:54:26,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:54:26,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:54:26,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:54:26,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:54:26,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:54:26,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:54:26,276 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-09-16 10:54:26,296 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:54:26,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:54:26,297 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:54:26,297 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:54:26,298 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:54:26,298 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:54:26,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:54:26,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:54:26,298 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:54:26,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:54:26,299 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:54:26,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:54:26,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:54:26,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:54:26,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:54:26,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:54:26,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:54:26,300 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:54:26,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:54:26,300 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:54:26,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:54:26,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:54:26,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:54:26,300 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:54:26,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:54:26,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:54:26,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:54:26,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:54:26,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:54:26,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:54:26,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:54:26,301 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:54:26,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:54:26,301 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:54:26,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:54:26,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:54:26,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:54:26,494 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:54:26,495 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:54:26,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c [2022-09-16 10:54:26,546 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c36a6f8b/5169eb98524d419aa18afb0ee9b827c3/FLAGdbb865bc1 [2022-09-16 10:54:26,897 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:54:26,897 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c [2022-09-16 10:54:26,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c36a6f8b/5169eb98524d419aa18afb0ee9b827c3/FLAGdbb865bc1 [2022-09-16 10:54:26,911 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c36a6f8b/5169eb98524d419aa18afb0ee9b827c3 [2022-09-16 10:54:26,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:54:26,914 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:54:26,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:54:26,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:54:26,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:54:26,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:54:26" (1/1) ... [2022-09-16 10:54:26,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34af55d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:26, skipping insertion in model container [2022-09-16 10:54:26,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:54:26" (1/1) ... [2022-09-16 10:54:26,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:54:26,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:54:27,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c[3057,3070] [2022-09-16 10:54:27,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:54:27,101 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:54:27,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c[3057,3070] [2022-09-16 10:54:27,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:54:27,131 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:54:27,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:27 WrapperNode [2022-09-16 10:54:27,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:54:27,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:54:27,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:54:27,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:54:27,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:27" (1/1) ... [2022-09-16 10:54:27,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:27" (1/1) ... [2022-09-16 10:54:27,164 INFO L138 Inliner]: procedures = 25, calls = 53, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 124 [2022-09-16 10:54:27,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:54:27,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:54:27,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:54:27,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:54:27,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:27" (1/1) ... [2022-09-16 10:54:27,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:27" (1/1) ... [2022-09-16 10:54:27,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:27" (1/1) ... [2022-09-16 10:54:27,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:27" (1/1) ... [2022-09-16 10:54:27,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:27" (1/1) ... [2022-09-16 10:54:27,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:27" (1/1) ... [2022-09-16 10:54:27,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:27" (1/1) ... [2022-09-16 10:54:27,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:54:27,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:54:27,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:54:27,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:54:27,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:27" (1/1) ... [2022-09-16 10:54:27,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:54:27,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:54:27,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 10:54:27,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 10:54:27,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:54:27,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:54:27,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:54:27,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:54:27,269 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 10:54:27,269 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 10:54:27,269 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 10:54:27,269 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 10:54:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 10:54:27,271 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 10:54:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:54:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:54:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:54:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 10:54:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:54:27,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:54:27,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:54:27,272 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 10:54:27,361 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:54:27,362 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:54:27,612 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:54:27,650 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:54:27,651 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-09-16 10:54:27,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:54:27 BoogieIcfgContainer [2022-09-16 10:54:27,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:54:27,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:54:27,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:54:27,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:54:27,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:54:26" (1/3) ... [2022-09-16 10:54:27,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@503fa4ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:54:27, skipping insertion in model container [2022-09-16 10:54:27,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:27" (2/3) ... [2022-09-16 10:54:27,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@503fa4ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:54:27, skipping insertion in model container [2022-09-16 10:54:27,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:54:27" (3/3) ... [2022-09-16 10:54:27,663 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-min-max-1.wvr.c [2022-09-16 10:54:27,677 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:54:27,683 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:54:27,683 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-09-16 10:54:27,683 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:54:27,747 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-16 10:54:27,771 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 185 places, 187 transitions, 398 flow [2022-09-16 10:54:27,980 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5140 states, 5129 states have (on average 3.3905244687073504) internal successors, (17390), 5139 states have internal predecessors, (17390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:27,997 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:54:28,005 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@22076b41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:54:28,006 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-09-16 10:54:28,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 5140 states, 5129 states have (on average 3.3905244687073504) internal successors, (17390), 5139 states have internal predecessors, (17390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:28,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-09-16 10:54:28,031 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:28,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:28,033 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:54:28,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:28,036 INFO L85 PathProgramCache]: Analyzing trace with hash 392499776, now seen corresponding path program 1 times [2022-09-16 10:54:28,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:28,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019878124] [2022-09-16 10:54:28,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:28,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:28,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:28,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019878124] [2022-09-16 10:54:28,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019878124] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:28,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:28,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:54:28,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175381724] [2022-09-16 10:54:28,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:28,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:54:28,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:28,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:54:28,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:54:28,328 INFO L87 Difference]: Start difference. First operand has 5140 states, 5129 states have (on average 3.3905244687073504) internal successors, (17390), 5139 states have internal predecessors, (17390), 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 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:28,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:28,535 INFO L93 Difference]: Finished difference Result 10211 states and 33561 transitions. [2022-09-16 10:54:28,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:54:28,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 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 70 [2022-09-16 10:54:28,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:28,627 INFO L225 Difference]: With dead ends: 10211 [2022-09-16 10:54:28,627 INFO L226 Difference]: Without dead ends: 10098 [2022-09-16 10:54:28,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:54:28,631 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 80 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:28,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 410 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:54:28,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10098 states. [2022-09-16 10:54:28,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10098 to 5089. [2022-09-16 10:54:28,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5079 states have (on average 3.2813545973616853) internal successors, (16666), 5088 states have internal predecessors, (16666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:28,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 16666 transitions. [2022-09-16 10:54:28,991 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 16666 transitions. Word has length 70 [2022-09-16 10:54:28,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:28,993 INFO L495 AbstractCegarLoop]: Abstraction has 5089 states and 16666 transitions. [2022-09-16 10:54:28,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:28,994 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 16666 transitions. [2022-09-16 10:54:28,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-09-16 10:54:28,997 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:28,998 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:28,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:54:28,999 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:54:28,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:29,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1027812931, now seen corresponding path program 1 times [2022-09-16 10:54:29,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:29,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728131420] [2022-09-16 10:54:29,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:29,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:29,113 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:29,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:29,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728131420] [2022-09-16 10:54:29,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728131420] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:54:29,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200364556] [2022-09-16 10:54:29,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:29,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:29,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:54:29,129 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:54:29,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 10:54:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:29,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:54:29,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:54:29,321 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:29,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:54:29,381 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:29,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200364556] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:54:29,381 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:54:29,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 10:54:29,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651550149] [2022-09-16 10:54:29,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:54:29,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 10:54:29,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:29,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 10:54:29,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 10:54:29,383 INFO L87 Difference]: Start difference. First operand 5089 states and 16666 transitions. Second operand has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:29,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:29,721 INFO L93 Difference]: Finished difference Result 25148 states and 83028 transitions. [2022-09-16 10:54:29,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 10:54:29,722 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 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 79 [2022-09-16 10:54:29,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:30,002 INFO L225 Difference]: With dead ends: 25148 [2022-09-16 10:54:30,003 INFO L226 Difference]: Without dead ends: 25148 [2022-09-16 10:54:30,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:54:30,004 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 479 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:30,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 855 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:54:30,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25148 states. [2022-09-16 10:54:30,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25148 to 5115. [2022-09-16 10:54:30,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5105 states have (on average 3.270714985308521) internal successors, (16697), 5114 states have internal predecessors, (16697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:30,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 16697 transitions. [2022-09-16 10:54:30,355 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 16697 transitions. Word has length 79 [2022-09-16 10:54:30,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:30,357 INFO L495 AbstractCegarLoop]: Abstraction has 5115 states and 16697 transitions. [2022-09-16 10:54:30,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:30,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 16697 transitions. [2022-09-16 10:54:30,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-09-16 10:54:30,362 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:30,362 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:30,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-16 10:54:30,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:30,576 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:54:30,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:30,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1797429457, now seen corresponding path program 1 times [2022-09-16 10:54:30,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:30,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510852453] [2022-09-16 10:54:30,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:30,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:30,660 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:30,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:30,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510852453] [2022-09-16 10:54:30,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510852453] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:54:30,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24260513] [2022-09-16 10:54:30,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:30,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:30,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:54:30,663 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:54:30,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 10:54:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:30,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:54:30,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:54:30,779 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:30,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:54:30,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24260513] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:30,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:54:30,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:54:30,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499731993] [2022-09-16 10:54:30,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:30,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:54:30,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:30,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:54:30,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:54:30,782 INFO L87 Difference]: Start difference. First operand 5115 states and 16697 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:30,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:30,949 INFO L93 Difference]: Finished difference Result 10121 states and 33276 transitions. [2022-09-16 10:54:30,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:54:30,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-09-16 10:54:30,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:30,982 INFO L225 Difference]: With dead ends: 10121 [2022-09-16 10:54:30,982 INFO L226 Difference]: Without dead ends: 10121 [2022-09-16 10:54:30,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:54:30,983 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 160 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:30,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 526 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:54:31,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10121 states. [2022-09-16 10:54:31,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10121 to 5114. [2022-09-16 10:54:31,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5114 states, 5105 states have (on average 3.2701273261508326) internal successors, (16694), 5113 states have internal predecessors, (16694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:31,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5114 states to 5114 states and 16694 transitions. [2022-09-16 10:54:31,162 INFO L78 Accepts]: Start accepts. Automaton has 5114 states and 16694 transitions. Word has length 80 [2022-09-16 10:54:31,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:31,163 INFO L495 AbstractCegarLoop]: Abstraction has 5114 states and 16694 transitions. [2022-09-16 10:54:31,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:31,164 INFO L276 IsEmpty]: Start isEmpty. Operand 5114 states and 16694 transitions. [2022-09-16 10:54:31,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-09-16 10:54:31,166 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:31,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:31,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-16 10:54:31,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-09-16 10:54:31,384 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:54:31,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:31,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1925412711, now seen corresponding path program 1 times [2022-09-16 10:54:31,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:31,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046502702] [2022-09-16 10:54:31,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:31,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:31,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:31,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:31,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046502702] [2022-09-16 10:54:31,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046502702] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:31,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:31,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:54:31,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825930278] [2022-09-16 10:54:31,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:31,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:54:31,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:31,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:54:31,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:54:31,497 INFO L87 Difference]: Start difference. First operand 5114 states and 16694 transitions. Second operand has 4 states, 3 states have (on average 30.333333333333332) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:31,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:31,569 INFO L93 Difference]: Finished difference Result 8420 states and 27644 transitions. [2022-09-16 10:54:31,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:54:31,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 30.333333333333332) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-09-16 10:54:31,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:31,597 INFO L225 Difference]: With dead ends: 8420 [2022-09-16 10:54:31,597 INFO L226 Difference]: Without dead ends: 8420 [2022-09-16 10:54:31,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:54:31,600 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 110 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:31,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 516 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:54:31,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8420 states. [2022-09-16 10:54:31,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8420 to 6794. [2022-09-16 10:54:31,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6794 states, 6785 states have (on average 3.327044952100221) internal successors, (22574), 6793 states have internal predecessors, (22574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:31,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6794 states to 6794 states and 22574 transitions. [2022-09-16 10:54:31,774 INFO L78 Accepts]: Start accepts. Automaton has 6794 states and 22574 transitions. Word has length 91 [2022-09-16 10:54:31,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:31,775 INFO L495 AbstractCegarLoop]: Abstraction has 6794 states and 22574 transitions. [2022-09-16 10:54:31,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 30.333333333333332) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:31,775 INFO L276 IsEmpty]: Start isEmpty. Operand 6794 states and 22574 transitions. [2022-09-16 10:54:31,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-09-16 10:54:31,780 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:31,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:31,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 10:54:31,783 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:54:31,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:31,784 INFO L85 PathProgramCache]: Analyzing trace with hash 884461943, now seen corresponding path program 1 times [2022-09-16 10:54:31,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:31,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409114022] [2022-09-16 10:54:31,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:31,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:31,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:31,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:31,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409114022] [2022-09-16 10:54:31,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409114022] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:31,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:31,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:54:31,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259554569] [2022-09-16 10:54:31,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:31,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:54:31,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:31,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:54:31,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:54:31,848 INFO L87 Difference]: Start difference. First operand 6794 states and 22574 transitions. Second operand has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:31,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:31,978 INFO L93 Difference]: Finished difference Result 11080 states and 37093 transitions. [2022-09-16 10:54:31,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:54:31,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-09-16 10:54:31,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:32,010 INFO L225 Difference]: With dead ends: 11080 [2022-09-16 10:54:32,011 INFO L226 Difference]: Without dead ends: 11080 [2022-09-16 10:54:32,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:54:32,012 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 98 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:32,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 504 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:54:32,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11080 states. [2022-09-16 10:54:32,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11080 to 9054. [2022-09-16 10:54:32,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9045 states have (on average 3.3856274184632396) internal successors, (30623), 9053 states have internal predecessors, (30623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:32,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 30623 transitions. [2022-09-16 10:54:32,224 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 30623 transitions. Word has length 97 [2022-09-16 10:54:32,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:32,225 INFO L495 AbstractCegarLoop]: Abstraction has 9054 states and 30623 transitions. [2022-09-16 10:54:32,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:32,226 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 30623 transitions. [2022-09-16 10:54:32,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-09-16 10:54:32,227 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:32,227 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:32,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:54:32,228 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:54:32,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:32,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1930627857, now seen corresponding path program 1 times [2022-09-16 10:54:32,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:32,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793059983] [2022-09-16 10:54:32,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:32,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:32,290 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:32,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:32,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793059983] [2022-09-16 10:54:32,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793059983] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:54:32,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836017019] [2022-09-16 10:54:32,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:32,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:32,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:54:32,296 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:54:32,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 10:54:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:32,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 10:54:32,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:54:32,449 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-09-16 10:54:32,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:54:32,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836017019] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:32,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:54:32,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2022-09-16 10:54:32,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646097984] [2022-09-16 10:54:32,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:32,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 10:54:32,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:32,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 10:54:32,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:54:32,452 INFO L87 Difference]: Start difference. First operand 9054 states and 30623 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:32,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:32,580 INFO L93 Difference]: Finished difference Result 12203 states and 40626 transitions. [2022-09-16 10:54:32,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:54:32,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 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 98 [2022-09-16 10:54:32,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:32,629 INFO L225 Difference]: With dead ends: 12203 [2022-09-16 10:54:32,629 INFO L226 Difference]: Without dead ends: 11939 [2022-09-16 10:54:32,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-09-16 10:54:32,631 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 497 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:32,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 545 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:54:32,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11939 states. [2022-09-16 10:54:32,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11939 to 10595. [2022-09-16 10:54:32,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10595 states, 10586 states have (on average 3.3747402229359533) internal successors, (35725), 10594 states have internal predecessors, (35725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:32,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10595 states to 10595 states and 35725 transitions. [2022-09-16 10:54:32,926 INFO L78 Accepts]: Start accepts. Automaton has 10595 states and 35725 transitions. Word has length 98 [2022-09-16 10:54:32,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:32,926 INFO L495 AbstractCegarLoop]: Abstraction has 10595 states and 35725 transitions. [2022-09-16 10:54:32,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:32,927 INFO L276 IsEmpty]: Start isEmpty. Operand 10595 states and 35725 transitions. [2022-09-16 10:54:32,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-09-16 10:54:32,929 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:32,930 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:32,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-16 10:54:33,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:33,148 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:54:33,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:33,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1337321091, now seen corresponding path program 1 times [2022-09-16 10:54:33,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:33,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915379944] [2022-09-16 10:54:33,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:33,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:33,189 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:33,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:33,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915379944] [2022-09-16 10:54:33,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915379944] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:54:33,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15965918] [2022-09-16 10:54:33,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:33,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:33,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:54:33,204 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:54:33,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-16 10:54:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:33,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 10:54:33,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:54:33,367 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-09-16 10:54:33,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:54:33,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15965918] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:33,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:54:33,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2022-09-16 10:54:33,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541661330] [2022-09-16 10:54:33,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:33,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 10:54:33,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:33,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 10:54:33,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:54:33,368 INFO L87 Difference]: Start difference. First operand 10595 states and 35725 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:33,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:33,500 INFO L93 Difference]: Finished difference Result 9781 states and 32673 transitions. [2022-09-16 10:54:33,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:54:33,500 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 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 104 [2022-09-16 10:54:33,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:33,530 INFO L225 Difference]: With dead ends: 9781 [2022-09-16 10:54:33,530 INFO L226 Difference]: Without dead ends: 9054 [2022-09-16 10:54:33,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-09-16 10:54:33,531 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 371 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:33,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 517 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:54:33,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9054 states. [2022-09-16 10:54:33,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9054 to 9054. [2022-09-16 10:54:33,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9045 states have (on average 3.385516860143726) internal successors, (30622), 9053 states have internal predecessors, (30622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:33,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 30622 transitions. [2022-09-16 10:54:33,882 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 30622 transitions. Word has length 104 [2022-09-16 10:54:33,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:33,882 INFO L495 AbstractCegarLoop]: Abstraction has 9054 states and 30622 transitions. [2022-09-16 10:54:33,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:33,883 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 30622 transitions. [2022-09-16 10:54:33,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-09-16 10:54:33,884 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:33,884 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:33,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-09-16 10:54:34,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:34,102 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:54:34,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:34,102 INFO L85 PathProgramCache]: Analyzing trace with hash 739861376, now seen corresponding path program 2 times [2022-09-16 10:54:34,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:34,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018888912] [2022-09-16 10:54:34,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:34,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:34,180 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:34,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:34,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018888912] [2022-09-16 10:54:34,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018888912] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:54:34,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344741541] [2022-09-16 10:54:34,181 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:54:34,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:34,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:54:34,182 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:54:34,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-16 10:54:34,245 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 10:54:34,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:54:34,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 10:54:34,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:54:34,373 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-09-16 10:54:34,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:54:34,480 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-09-16 10:54:34,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344741541] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:54:34,480 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:54:34,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-09-16 10:54:34,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747712826] [2022-09-16 10:54:34,481 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:54:34,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 10:54:34,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:34,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 10:54:34,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-09-16 10:54:34,485 INFO L87 Difference]: Start difference. First operand 9054 states and 30622 transitions. Second operand has 18 states, 17 states have (on average 9.235294117647058) internal successors, (157), 18 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:35,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:35,311 INFO L93 Difference]: Finished difference Result 53801 states and 183191 transitions. [2022-09-16 10:54:35,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 10:54:35,312 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 9.235294117647058) internal successors, (157), 18 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-09-16 10:54:35,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:35,678 INFO L225 Difference]: With dead ends: 53801 [2022-09-16 10:54:35,678 INFO L226 Difference]: Without dead ends: 53801 [2022-09-16 10:54:35,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 201 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=419, Invalid=1063, Unknown=0, NotChecked=0, Total=1482 [2022-09-16 10:54:35,679 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 1972 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1972 SdHoareTripleChecker+Valid, 1532 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:35,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1972 Valid, 1532 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:54:35,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53801 states. [2022-09-16 10:54:36,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53801 to 9021. [2022-09-16 10:54:36,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9021 states, 9013 states have (on average 3.3935426606013537) internal successors, (30586), 9020 states have internal predecessors, (30586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:36,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9021 states to 9021 states and 30586 transitions. [2022-09-16 10:54:36,419 INFO L78 Accepts]: Start accepts. Automaton has 9021 states and 30586 transitions. Word has length 106 [2022-09-16 10:54:36,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:36,420 INFO L495 AbstractCegarLoop]: Abstraction has 9021 states and 30586 transitions. [2022-09-16 10:54:36,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 9.235294117647058) internal successors, (157), 18 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:36,420 INFO L276 IsEmpty]: Start isEmpty. Operand 9021 states and 30586 transitions. [2022-09-16 10:54:36,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-09-16 10:54:36,421 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:36,421 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:36,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-09-16 10:54:36,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:36,626 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:54:36,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:36,626 INFO L85 PathProgramCache]: Analyzing trace with hash 224976142, now seen corresponding path program 1 times [2022-09-16 10:54:36,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:36,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881498852] [2022-09-16 10:54:36,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:36,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:36,669 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:54:36,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:36,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881498852] [2022-09-16 10:54:36,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881498852] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:54:36,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242506035] [2022-09-16 10:54:36,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:36,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:36,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:54:36,671 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:54:36,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-16 10:54:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:36,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-16 10:54:36,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:54:36,873 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:36,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:54:37,096 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:37,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242506035] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:54:37,096 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:54:37,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 23 [2022-09-16 10:54:37,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048704192] [2022-09-16 10:54:37,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:54:37,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-09-16 10:54:37,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:37,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-09-16 10:54:37,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2022-09-16 10:54:37,098 INFO L87 Difference]: Start difference. First operand 9021 states and 30586 transitions. Second operand has 23 states, 23 states have (on average 9.08695652173913) internal successors, (209), 23 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:37,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:37,933 INFO L93 Difference]: Finished difference Result 23800 states and 79077 transitions. [2022-09-16 10:54:37,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-09-16 10:54:37,934 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.08695652173913) internal successors, (209), 23 states have internal predecessors, (209), 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 107 [2022-09-16 10:54:37,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:38,002 INFO L225 Difference]: With dead ends: 23800 [2022-09-16 10:54:38,003 INFO L226 Difference]: Without dead ends: 23074 [2022-09-16 10:54:38,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=413, Invalid=1479, Unknown=0, NotChecked=0, Total=1892 [2022-09-16 10:54:38,004 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 2082 mSDsluCounter, 2964 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2082 SdHoareTripleChecker+Valid, 2921 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:38,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2082 Valid, 2921 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:54:38,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23074 states. [2022-09-16 10:54:38,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23074 to 15907. [2022-09-16 10:54:38,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15907 states, 15899 states have (on average 3.423611547896094) internal successors, (54432), 15906 states have internal predecessors, (54432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:38,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15907 states to 15907 states and 54432 transitions. [2022-09-16 10:54:38,485 INFO L78 Accepts]: Start accepts. Automaton has 15907 states and 54432 transitions. Word has length 107 [2022-09-16 10:54:38,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:38,486 INFO L495 AbstractCegarLoop]: Abstraction has 15907 states and 54432 transitions. [2022-09-16 10:54:38,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.08695652173913) internal successors, (209), 23 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:38,486 INFO L276 IsEmpty]: Start isEmpty. Operand 15907 states and 54432 transitions. [2022-09-16 10:54:38,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-09-16 10:54:38,489 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:38,490 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:38,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-09-16 10:54:38,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:38,693 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:54:38,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:38,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1412662976, now seen corresponding path program 1 times [2022-09-16 10:54:38,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:38,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245451968] [2022-09-16 10:54:38,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:38,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:38,733 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:54:38,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:38,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245451968] [2022-09-16 10:54:38,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245451968] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:54:38,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552856391] [2022-09-16 10:54:38,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:38,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:38,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:54:38,735 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:54:38,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-16 10:54:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:38,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-16 10:54:38,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:54:38,922 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:38,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:54:39,104 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:39,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552856391] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:54:39,104 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:54:39,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 23 [2022-09-16 10:54:39,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828258630] [2022-09-16 10:54:39,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:54:39,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-09-16 10:54:39,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:39,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-09-16 10:54:39,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2022-09-16 10:54:39,107 INFO L87 Difference]: Start difference. First operand 15907 states and 54432 transitions. Second operand has 23 states, 23 states have (on average 9.608695652173912) internal successors, (221), 23 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:39,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:39,791 INFO L93 Difference]: Finished difference Result 24214 states and 81412 transitions. [2022-09-16 10:54:39,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 10:54:39,792 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.608695652173912) internal successors, (221), 23 states have internal predecessors, (221), 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 113 [2022-09-16 10:54:39,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:39,846 INFO L225 Difference]: With dead ends: 24214 [2022-09-16 10:54:39,847 INFO L226 Difference]: Without dead ends: 20589 [2022-09-16 10:54:39,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=387, Invalid=1419, Unknown=0, NotChecked=0, Total=1806 [2022-09-16 10:54:39,848 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 2208 mSDsluCounter, 2185 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2208 SdHoareTripleChecker+Valid, 2189 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:39,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2208 Valid, 2189 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:54:39,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20589 states. [2022-09-16 10:54:40,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20589 to 15210. [2022-09-16 10:54:40,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15210 states, 15202 states have (on average 3.4581633995526904) internal successors, (52571), 15209 states have internal predecessors, (52571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:40,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15210 states to 15210 states and 52571 transitions. [2022-09-16 10:54:40,293 INFO L78 Accepts]: Start accepts. Automaton has 15210 states and 52571 transitions. Word has length 113 [2022-09-16 10:54:40,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:40,294 INFO L495 AbstractCegarLoop]: Abstraction has 15210 states and 52571 transitions. [2022-09-16 10:54:40,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.608695652173912) internal successors, (221), 23 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:40,294 INFO L276 IsEmpty]: Start isEmpty. Operand 15210 states and 52571 transitions. [2022-09-16 10:54:40,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-09-16 10:54:40,296 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:40,297 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:40,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-09-16 10:54:40,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:40,511 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:54:40,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:40,512 INFO L85 PathProgramCache]: Analyzing trace with hash -272891788, now seen corresponding path program 1 times [2022-09-16 10:54:40,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:40,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888256335] [2022-09-16 10:54:40,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:40,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:40,557 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-09-16 10:54:40,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:40,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888256335] [2022-09-16 10:54:40,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888256335] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:54:40,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693891303] [2022-09-16 10:54:40,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:40,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:40,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:54:40,559 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:54:40,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-16 10:54:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:40,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:54:40,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:54:40,662 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-09-16 10:54:40,663 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:54:40,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693891303] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:40,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:54:40,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:54:40,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816701740] [2022-09-16 10:54:40,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:40,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:54:40,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:40,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:54:40,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:54:40,665 INFO L87 Difference]: Start difference. First operand 15210 states and 52571 transitions. Second operand has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:40,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:40,797 INFO L93 Difference]: Finished difference Result 16444 states and 55980 transitions. [2022-09-16 10:54:40,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:54:40,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 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 117 [2022-09-16 10:54:40,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:40,845 INFO L225 Difference]: With dead ends: 16444 [2022-09-16 10:54:40,846 INFO L226 Difference]: Without dead ends: 16444 [2022-09-16 10:54:40,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:54:40,851 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 189 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:40,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 689 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:54:40,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16444 states. [2022-09-16 10:54:41,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16444 to 14632. [2022-09-16 10:54:41,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14632 states, 14627 states have (on average 3.4587406850345253) internal successors, (50591), 14631 states have internal predecessors, (50591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:41,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14632 states to 14632 states and 50591 transitions. [2022-09-16 10:54:41,249 INFO L78 Accepts]: Start accepts. Automaton has 14632 states and 50591 transitions. Word has length 117 [2022-09-16 10:54:41,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:41,249 INFO L495 AbstractCegarLoop]: Abstraction has 14632 states and 50591 transitions. [2022-09-16 10:54:41,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:41,249 INFO L276 IsEmpty]: Start isEmpty. Operand 14632 states and 50591 transitions. [2022-09-16 10:54:41,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-09-16 10:54:41,254 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:41,254 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:41,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-09-16 10:54:41,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-09-16 10:54:41,468 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:54:41,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:41,468 INFO L85 PathProgramCache]: Analyzing trace with hash -391017646, now seen corresponding path program 1 times [2022-09-16 10:54:41,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:41,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183678554] [2022-09-16 10:54:41,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:41,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:41,523 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-09-16 10:54:41,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:41,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183678554] [2022-09-16 10:54:41,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183678554] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:54:41,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373588378] [2022-09-16 10:54:41,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:41,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:41,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:54:41,525 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:54:41,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-09-16 10:54:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:41,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:54:41,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:54:41,619 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-09-16 10:54:41,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:54:41,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373588378] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:41,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:54:41,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:54:41,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886994606] [2022-09-16 10:54:41,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:41,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:54:41,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:41,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:54:41,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:54:41,620 INFO L87 Difference]: Start difference. First operand 14632 states and 50591 transitions. Second operand has 6 states, 5 states have (on average 22.8) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:41,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:41,769 INFO L93 Difference]: Finished difference Result 15522 states and 53064 transitions. [2022-09-16 10:54:41,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:54:41,769 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.8) internal successors, (114), 6 states have internal predecessors, (114), 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 123 [2022-09-16 10:54:41,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:41,938 INFO L225 Difference]: With dead ends: 15522 [2022-09-16 10:54:41,939 INFO L226 Difference]: Without dead ends: 15522 [2022-09-16 10:54:41,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:54:41,940 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 162 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:41,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 798 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:54:41,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15522 states. [2022-09-16 10:54:42,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15522 to 14070. [2022-09-16 10:54:42,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14070 states, 14067 states have (on average 3.45944408900263) internal successors, (48664), 14069 states have internal predecessors, (48664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:42,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14070 states to 14070 states and 48664 transitions. [2022-09-16 10:54:42,187 INFO L78 Accepts]: Start accepts. Automaton has 14070 states and 48664 transitions. Word has length 123 [2022-09-16 10:54:42,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:42,187 INFO L495 AbstractCegarLoop]: Abstraction has 14070 states and 48664 transitions. [2022-09-16 10:54:42,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.8) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:42,188 INFO L276 IsEmpty]: Start isEmpty. Operand 14070 states and 48664 transitions. [2022-09-16 10:54:42,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-09-16 10:54:42,191 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:42,192 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:42,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-09-16 10:54:42,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:42,392 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:54:42,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:42,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1132596999, now seen corresponding path program 2 times [2022-09-16 10:54:42,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:42,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611089629] [2022-09-16 10:54:42,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:42,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:42,593 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:42,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:42,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611089629] [2022-09-16 10:54:42,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611089629] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:54:42,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121801165] [2022-09-16 10:54:42,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:54:42,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:42,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:54:42,595 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:54:42,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-09-16 10:54:42,667 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 10:54:42,667 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:54:42,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:54:42,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:54:42,796 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-09-16 10:54:42,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:54:42,891 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-09-16 10:54:42,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121801165] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:54:42,891 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:54:42,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 19 [2022-09-16 10:54:42,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137709212] [2022-09-16 10:54:42,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:54:42,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-09-16 10:54:42,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:42,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-09-16 10:54:42,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-09-16 10:54:42,892 INFO L87 Difference]: Start difference. First operand 14070 states and 48664 transitions. Second operand has 19 states, 19 states have (on average 10.631578947368421) internal successors, (202), 19 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:43,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:43,616 INFO L93 Difference]: Finished difference Result 30495 states and 102643 transitions. [2022-09-16 10:54:43,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-16 10:54:43,617 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 10.631578947368421) internal successors, (202), 19 states have internal predecessors, (202), 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 123 [2022-09-16 10:54:43,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:43,706 INFO L225 Difference]: With dead ends: 30495 [2022-09-16 10:54:43,706 INFO L226 Difference]: Without dead ends: 27921 [2022-09-16 10:54:43,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 239 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=371, Invalid=1609, Unknown=0, NotChecked=0, Total=1980 [2022-09-16 10:54:43,707 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 1449 mSDsluCounter, 2769 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 2775 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:43,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1449 Valid, 2775 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:54:43,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27921 states. [2022-09-16 10:54:44,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27921 to 15588. [2022-09-16 10:54:44,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15588 states, 15587 states have (on average 3.3799961506383527) internal successors, (52684), 15587 states have internal predecessors, (52684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:44,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15588 states to 15588 states and 52684 transitions. [2022-09-16 10:54:44,229 INFO L78 Accepts]: Start accepts. Automaton has 15588 states and 52684 transitions. Word has length 123 [2022-09-16 10:54:44,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:44,229 INFO L495 AbstractCegarLoop]: Abstraction has 15588 states and 52684 transitions. [2022-09-16 10:54:44,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.631578947368421) internal successors, (202), 19 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:44,229 INFO L276 IsEmpty]: Start isEmpty. Operand 15588 states and 52684 transitions. [2022-09-16 10:54:44,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-09-16 10:54:44,238 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:44,238 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:44,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-09-16 10:54:44,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-09-16 10:54:44,454 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:54:44,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:44,454 INFO L85 PathProgramCache]: Analyzing trace with hash -2122194089, now seen corresponding path program 2 times [2022-09-16 10:54:44,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:44,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343518463] [2022-09-16 10:54:44,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:44,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:44,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:44,588 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:44,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:44,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343518463] [2022-09-16 10:54:44,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343518463] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:54:44,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914210712] [2022-09-16 10:54:44,589 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:54:44,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:44,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:54:44,596 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:54:44,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-09-16 10:54:44,671 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 10:54:44,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:54:44,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:54:44,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:54:44,801 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-09-16 10:54:44,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:54:44,912 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-09-16 10:54:44,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914210712] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:54:44,913 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:54:44,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 19 [2022-09-16 10:54:44,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141447031] [2022-09-16 10:54:44,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:54:44,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-09-16 10:54:44,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:44,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-09-16 10:54:44,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-09-16 10:54:44,914 INFO L87 Difference]: Start difference. First operand 15588 states and 52684 transitions. Second operand has 19 states, 19 states have (on average 11.263157894736842) internal successors, (214), 19 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:45,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:45,547 INFO L93 Difference]: Finished difference Result 15135 states and 49942 transitions. [2022-09-16 10:54:45,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-09-16 10:54:45,547 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 11.263157894736842) internal successors, (214), 19 states have internal predecessors, (214), 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 129 [2022-09-16 10:54:45,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:45,548 INFO L225 Difference]: With dead ends: 15135 [2022-09-16 10:54:45,548 INFO L226 Difference]: Without dead ends: 0 [2022-09-16 10:54:45,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 251 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=1333, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 10:54:45,549 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 1129 mSDsluCounter, 2284 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:45,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 2270 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:54:45,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-09-16 10:54:45,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-09-16 10:54:45,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:45,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-09-16 10:54:45,549 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 129 [2022-09-16 10:54:45,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:45,549 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-16 10:54:45,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.263157894736842) internal successors, (214), 19 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:45,550 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-09-16 10:54:45,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-09-16 10:54:45,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2022-09-16 10:54:45,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-09-16 10:54:45,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-09-16 10:54:45,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-09-16 10:54:45,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2022-09-16 10:54:45,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-09-16 10:54:45,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2022-09-16 10:54:45,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2022-09-16 10:54:45,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2022-09-16 10:54:45,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-09-16 10:54:45,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-09-16 10:54:45,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-09-16 10:54:45,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-09-16 10:54:45,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-09-16 10:54:45,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-09-16 10:54:45,771 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:45,776 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 10:54:45,777 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 10:54:45,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 10:54:45 BasicIcfg [2022-09-16 10:54:45,778 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 10:54:45,779 INFO L158 Benchmark]: Toolchain (without parser) took 18864.98ms. Allocated memory was 224.4MB in the beginning and 4.4GB in the end (delta: 4.2GB). Free memory was 170.1MB in the beginning and 3.6GB in the end (delta: -3.5GB). Peak memory consumption was 694.5MB. Max. memory is 8.0GB. [2022-09-16 10:54:45,779 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 224.4MB. Free memory is still 186.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 10:54:45,779 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.73ms. Allocated memory is still 224.4MB. Free memory was 169.8MB in the beginning and 197.0MB in the end (delta: -27.2MB). Peak memory consumption was 12.9MB. Max. memory is 8.0GB. [2022-09-16 10:54:45,779 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.94ms. Allocated memory is still 224.4MB. Free memory was 197.0MB in the beginning and 195.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 10:54:45,779 INFO L158 Benchmark]: Boogie Preprocessor took 17.83ms. Allocated memory is still 224.4MB. Free memory was 195.0MB in the beginning and 193.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 10:54:45,779 INFO L158 Benchmark]: RCFGBuilder took 469.59ms. Allocated memory is still 224.4MB. Free memory was 193.3MB in the beginning and 172.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-09-16 10:54:45,780 INFO L158 Benchmark]: TraceAbstraction took 18124.74ms. Allocated memory was 224.4MB in the beginning and 4.4GB in the end (delta: 4.2GB). Free memory was 171.9MB in the beginning and 3.6GB in the end (delta: -3.5GB). Peak memory consumption was 695.2MB. Max. memory is 8.0GB. [2022-09-16 10:54:45,784 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 224.4MB. Free memory is still 186.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 216.73ms. Allocated memory is still 224.4MB. Free memory was 169.8MB in the beginning and 197.0MB in the end (delta: -27.2MB). Peak memory consumption was 12.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.94ms. Allocated memory is still 224.4MB. Free memory was 197.0MB in the beginning and 195.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.83ms. Allocated memory is still 224.4MB. Free memory was 195.0MB in the beginning and 193.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 469.59ms. Allocated memory is still 224.4MB. Free memory was 193.3MB in the beginning and 172.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 18124.74ms. Allocated memory was 224.4MB in the beginning and 4.4GB in the end (delta: 4.2GB). Free memory was 171.9MB in the beginning and 3.6GB in the end (delta: -3.5GB). Peak memory consumption was 695.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 125]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 125]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 213 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 18.0s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10986 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10986 mSDsluCounter, 17047 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15689 mSDsCounter, 221 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3822 IncrementalHoareTripleChecker+Invalid, 4043 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 221 mSolverCounterUnsat, 2684 mSDtfsCounter, 3822 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2054 GetRequests, 1757 SyntacticMatches, 13 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1901 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15907occurred in iteration=9, InterpolantAutomatonStates: 199, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.7s AutomataMinimizationTime, 14 MinimizatonAttempts, 107968 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 2616 NumberOfCodeBlocks, 2516 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 3242 ConstructedInterpolants, 0 QuantifiedInterpolants, 6448 SizeOfPredicates, 54 NumberOfNonLiveVariables, 2346 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 31 InterpolantComputations, 8 PerfectInterpolantSequences, 299/532 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 10:54:45,805 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...