/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/chl-chromosome-opt-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:47:47,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:47:47,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:47:47,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:47:47,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:47:47,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:47:47,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:47:47,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:47:47,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:47:47,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:47:47,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:47:47,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:47:47,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:47:47,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:47:47,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:47:47,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:47:47,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:47:47,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:47:47,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:47:47,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:47:47,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:47:47,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:47:47,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:47:47,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:47:47,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:47:47,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:47:47,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:47:47,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:47:47,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:47:47,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:47:47,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:47:47,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:47:47,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:47:47,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:47:47,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:47:47,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:47:47,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:47:47,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:47:47,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:47:47,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:47:47,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:47:47,229 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 10:47:47,252 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:47:47,252 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:47:47,252 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:47:47,252 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:47:47,253 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:47:47,253 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:47:47,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:47:47,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:47:47,254 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:47:47,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:47:47,254 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:47:47,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:47:47,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:47:47,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:47:47,255 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:47:47,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:47:47,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:47:47,255 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:47:47,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:47:47,255 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:47:47,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:47:47,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:47:47,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:47:47,256 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:47:47,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:47:47,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:47:47,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:47:47,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:47:47,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:47:47,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:47:47,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:47:47,257 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:47:47,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:47:47,257 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:47:47,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:47:47,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:47:47,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:47:47,481 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:47:47,482 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:47:47,482 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2022-09-16 10:47:47,519 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5428266e/8dfae49ff9ab435b9d96d31a51076bda/FLAG647d0c070 [2022-09-16 10:47:47,851 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:47:47,851 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2022-09-16 10:47:47,857 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5428266e/8dfae49ff9ab435b9d96d31a51076bda/FLAG647d0c070 [2022-09-16 10:47:48,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5428266e/8dfae49ff9ab435b9d96d31a51076bda [2022-09-16 10:47:48,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:47:48,268 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:47:48,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:47:48,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:47:48,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:47:48,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:47:48" (1/1) ... [2022-09-16 10:47:48,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e0fd621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:47:48, skipping insertion in model container [2022-09-16 10:47:48,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:47:48" (1/1) ... [2022-09-16 10:47:48,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:47:48,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:47:48,440 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/chl-chromosome-opt-symm.wvr.c[2566,2579] [2022-09-16 10:47:48,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:47:48,447 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:47:48,460 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/chl-chromosome-opt-symm.wvr.c[2566,2579] [2022-09-16 10:47:48,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:47:48,470 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:47:48,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:47:48 WrapperNode [2022-09-16 10:47:48,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:47:48,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:47:48,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:47:48,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:47:48,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:47:48" (1/1) ... [2022-09-16 10:47:48,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:47:48" (1/1) ... [2022-09-16 10:47:48,514 INFO L138 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 192 [2022-09-16 10:47:48,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:47:48,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:47:48,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:47:48,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:47:48,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:47:48" (1/1) ... [2022-09-16 10:47:48,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:47:48" (1/1) ... [2022-09-16 10:47:48,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:47:48" (1/1) ... [2022-09-16 10:47:48,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:47:48" (1/1) ... [2022-09-16 10:47:48,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:47:48" (1/1) ... [2022-09-16 10:47:48,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:47:48" (1/1) ... [2022-09-16 10:47:48,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:47:48" (1/1) ... [2022-09-16 10:47:48,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:47:48,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:47:48,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:47:48,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:47:48,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:47:48" (1/1) ... [2022-09-16 10:47:48,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:47:48,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:47:48,583 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 10:47:48,588 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 10:47:48,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:47:48,605 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 10:47:48,605 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 10:47:48,605 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 10:47:48,605 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 10:47:48,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:47:48,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:47:48,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:47:48,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 10:47:48,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:47:48,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:47:48,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:47:48,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:47:48,607 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 10:47:48,666 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:47:48,667 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:47:48,935 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:47:48,942 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:47:48,942 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-16 10:47:48,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:47:48 BoogieIcfgContainer [2022-09-16 10:47:48,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:47:48,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:47:48,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:47:48,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:47:48,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:47:48" (1/3) ... [2022-09-16 10:47:48,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f256784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:47:48, skipping insertion in model container [2022-09-16 10:47:48,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:47:48" (2/3) ... [2022-09-16 10:47:48,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f256784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:47:48, skipping insertion in model container [2022-09-16 10:47:48,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:47:48" (3/3) ... [2022-09-16 10:47:48,949 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2022-09-16 10:47:48,954 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:47:48,960 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:47:48,961 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-09-16 10:47:48,961 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:47:49,006 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-16 10:47:49,029 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 227 places, 241 transitions, 498 flow [2022-09-16 10:47:49,237 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6548 states, 6534 states have (on average 2.9322007958371596) internal successors, (19159), 6547 states have internal predecessors, (19159), 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 10:47:49,250 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:47:49,254 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;@301c40b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:47:49,255 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-09-16 10:47:49,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 6548 states, 6534 states have (on average 2.9322007958371596) internal successors, (19159), 6547 states have internal predecessors, (19159), 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 10:47:49,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-09-16 10:47:49,277 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:49,277 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] [2022-09-16 10:47:49,278 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:47:49,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:49,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1745770023, now seen corresponding path program 1 times [2022-09-16 10:47:49,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:49,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90894485] [2022-09-16 10:47:49,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:49,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:49,448 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 10:47:49,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:49,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90894485] [2022-09-16 10:47:49,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90894485] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:49,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:49,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:47:49,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267907003] [2022-09-16 10:47:49,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:49,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:47:49,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:49,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:47:49,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:47:49,501 INFO L87 Difference]: Start difference. First operand has 6548 states, 6534 states have (on average 2.9322007958371596) internal successors, (19159), 6547 states have internal predecessors, (19159), 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 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 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 10:47:49,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:49,743 INFO L93 Difference]: Finished difference Result 13030 states and 36956 transitions. [2022-09-16 10:47:49,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:47:49,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 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 47 [2022-09-16 10:47:49,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:49,822 INFO L225 Difference]: With dead ends: 13030 [2022-09-16 10:47:49,822 INFO L226 Difference]: Without dead ends: 12948 [2022-09-16 10:47:49,824 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 10:47:49,827 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 140 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:49,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 571 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:47:49,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12948 states. [2022-09-16 10:47:50,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12948 to 6519. [2022-09-16 10:47:50,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6519 states, 6501 states have (on average 2.8318720196892784) internal successors, (18410), 6518 states have internal predecessors, (18410), 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 10:47:50,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6519 states to 6519 states and 18410 transitions. [2022-09-16 10:47:50,132 INFO L78 Accepts]: Start accepts. Automaton has 6519 states and 18410 transitions. Word has length 47 [2022-09-16 10:47:50,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:50,133 INFO L495 AbstractCegarLoop]: Abstraction has 6519 states and 18410 transitions. [2022-09-16 10:47:50,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 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 10:47:50,134 INFO L276 IsEmpty]: Start isEmpty. Operand 6519 states and 18410 transitions. [2022-09-16 10:47:50,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-09-16 10:47:50,135 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:50,135 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] [2022-09-16 10:47:50,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:47:50,136 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:47:50,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:50,137 INFO L85 PathProgramCache]: Analyzing trace with hash -626325973, now seen corresponding path program 1 times [2022-09-16 10:47:50,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:50,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269582990] [2022-09-16 10:47:50,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:50,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:50,204 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 10:47:50,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:50,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269582990] [2022-09-16 10:47:50,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269582990] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:47:50,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156356569] [2022-09-16 10:47:50,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:50,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:47:50,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:47:50,224 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 10:47:50,225 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 10:47:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:50,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:47:50,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:47:50,352 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 10:47:50,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:47:50,395 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 10:47:50,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156356569] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:47:50,395 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:47:50,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 10:47:50,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929338557] [2022-09-16 10:47:50,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:47:50,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 10:47:50,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:50,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 10:47:50,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 10:47:50,398 INFO L87 Difference]: Start difference. First operand 6519 states and 18410 transitions. Second operand has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 12 states have internal predecessors, (81), 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 10:47:50,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:50,919 INFO L93 Difference]: Finished difference Result 32281 states and 91726 transitions. [2022-09-16 10:47:50,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 10:47:50,919 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 12 states have internal predecessors, (81), 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 56 [2022-09-16 10:47:50,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:51,101 INFO L225 Difference]: With dead ends: 32281 [2022-09-16 10:47:51,102 INFO L226 Difference]: Without dead ends: 32281 [2022-09-16 10:47:51,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 105 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 10:47:51,103 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 717 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:51,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 1352 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:47:51,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32281 states. [2022-09-16 10:47:51,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32281 to 6571. [2022-09-16 10:47:51,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6571 states, 6553 states have (on average 2.8188615901113994) internal successors, (18472), 6570 states have internal predecessors, (18472), 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 10:47:51,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6571 states to 6571 states and 18472 transitions. [2022-09-16 10:47:51,488 INFO L78 Accepts]: Start accepts. Automaton has 6571 states and 18472 transitions. Word has length 56 [2022-09-16 10:47:51,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:51,488 INFO L495 AbstractCegarLoop]: Abstraction has 6571 states and 18472 transitions. [2022-09-16 10:47:51,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 12 states have internal predecessors, (81), 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 10:47:51,489 INFO L276 IsEmpty]: Start isEmpty. Operand 6571 states and 18472 transitions. [2022-09-16 10:47:51,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-09-16 10:47:51,489 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:51,490 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] [2022-09-16 10:47:51,515 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 10:47:51,711 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 10:47:51,711 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:47:51,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:51,712 INFO L85 PathProgramCache]: Analyzing trace with hash 2058731751, now seen corresponding path program 1 times [2022-09-16 10:47:51,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:51,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57095662] [2022-09-16 10:47:51,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:51,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:51,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:51,770 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 10:47:51,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:51,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57095662] [2022-09-16 10:47:51,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57095662] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:47:51,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589794525] [2022-09-16 10:47:51,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:51,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:47:51,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:47:51,772 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:47:51,773 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 10:47:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:51,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:47:51,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:47:51,852 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 10:47:51,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:47:51,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589794525] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:51,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:47:51,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:47:51,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124406636] [2022-09-16 10:47:51,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:51,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:47:51,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:51,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:47:51,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:47:51,854 INFO L87 Difference]: Start difference. First operand 6571 states and 18472 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:51,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:51,984 INFO L93 Difference]: Finished difference Result 12994 states and 36778 transitions. [2022-09-16 10:47:51,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:47:51,985 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-09-16 10:47:51,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:52,086 INFO L225 Difference]: With dead ends: 12994 [2022-09-16 10:47:52,087 INFO L226 Difference]: Without dead ends: 12994 [2022-09-16 10:47:52,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 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 10:47:52,088 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 286 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:52,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 1101 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:47:52,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12994 states. [2022-09-16 10:47:52,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12994 to 6569. [2022-09-16 10:47:52,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6569 states, 6553 states have (on average 2.817945978940943) internal successors, (18466), 6568 states have internal predecessors, (18466), 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 10:47:52,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6569 states to 6569 states and 18466 transitions. [2022-09-16 10:47:52,321 INFO L78 Accepts]: Start accepts. Automaton has 6569 states and 18466 transitions. Word has length 57 [2022-09-16 10:47:52,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:52,322 INFO L495 AbstractCegarLoop]: Abstraction has 6569 states and 18466 transitions. [2022-09-16 10:47:52,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:47:52,322 INFO L276 IsEmpty]: Start isEmpty. Operand 6569 states and 18466 transitions. [2022-09-16 10:47:52,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-09-16 10:47:52,326 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:52,326 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] [2022-09-16 10:47:52,344 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 10:47:52,542 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 10:47:52,542 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:47:52,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:52,543 INFO L85 PathProgramCache]: Analyzing trace with hash -777088423, now seen corresponding path program 2 times [2022-09-16 10:47:52,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:52,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558430159] [2022-09-16 10:47:52,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:52,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:52,645 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 10:47:52,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:52,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558430159] [2022-09-16 10:47:52,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558430159] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:47:52,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848095683] [2022-09-16 10:47:52,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:47:52,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:47:52,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:47:52,647 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 10:47:52,648 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 10:47:52,702 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 10:47:52,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:47:52,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:47:52,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:47:52,775 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 10:47:52,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:47:52,865 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 10:47:52,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848095683] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:47:52,866 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:47:52,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 17 [2022-09-16 10:47:52,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202586713] [2022-09-16 10:47:52,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:47:52,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 10:47:52,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:52,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 10:47:52,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-09-16 10:47:52,867 INFO L87 Difference]: Start difference. First operand 6569 states and 18466 transitions. Second operand has 18 states, 17 states have (on average 8.705882352941176) internal successors, (148), 18 states have internal predecessors, (148), 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 10:47:53,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:53,435 INFO L93 Difference]: Finished difference Result 38700 states and 110034 transitions. [2022-09-16 10:47:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:47:53,435 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 8.705882352941176) internal successors, (148), 18 states have internal predecessors, (148), 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 83 [2022-09-16 10:47:53,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:53,528 INFO L225 Difference]: With dead ends: 38700 [2022-09-16 10:47:53,528 INFO L226 Difference]: Without dead ends: 38700 [2022-09-16 10:47:53,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=374, Invalid=816, Unknown=0, NotChecked=0, Total=1190 [2022-09-16 10:47:53,529 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 3762 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3762 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:53,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3762 Valid, 1355 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:47:53,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38700 states. [2022-09-16 10:47:53,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38700 to 6501. [2022-09-16 10:47:53,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6501 states, 6487 states have (on average 2.8349005703715124) internal successors, (18390), 6500 states have internal predecessors, (18390), 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 10:47:53,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6501 states to 6501 states and 18390 transitions. [2022-09-16 10:47:53,920 INFO L78 Accepts]: Start accepts. Automaton has 6501 states and 18390 transitions. Word has length 83 [2022-09-16 10:47:53,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:53,920 INFO L495 AbstractCegarLoop]: Abstraction has 6501 states and 18390 transitions. [2022-09-16 10:47:53,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 8.705882352941176) internal successors, (148), 18 states have internal predecessors, (148), 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 10:47:53,921 INFO L276 IsEmpty]: Start isEmpty. Operand 6501 states and 18390 transitions. [2022-09-16 10:47:53,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-09-16 10:47:53,924 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:53,924 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:53,943 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 10:47:54,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:47:54,140 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:47:54,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:54,140 INFO L85 PathProgramCache]: Analyzing trace with hash -277098219, now seen corresponding path program 1 times [2022-09-16 10:47:54,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:54,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573875256] [2022-09-16 10:47:54,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:54,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:54,214 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 10:47:54,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:54,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573875256] [2022-09-16 10:47:54,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573875256] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:54,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:54,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:47:54,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704236865] [2022-09-16 10:47:54,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:54,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:47:54,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:54,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:47:54,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:47:54,215 INFO L87 Difference]: Start difference. First operand 6501 states and 18390 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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 10:47:54,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:54,269 INFO L93 Difference]: Finished difference Result 8548 states and 23862 transitions. [2022-09-16 10:47:54,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:47:54,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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 10:47:54,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:54,291 INFO L225 Difference]: With dead ends: 8548 [2022-09-16 10:47:54,291 INFO L226 Difference]: Without dead ends: 8512 [2022-09-16 10:47:54,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 10:47:54,292 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 168 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:54,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 799 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:47:54,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8512 states. [2022-09-16 10:47:54,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8512 to 7761. [2022-09-16 10:47:54,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7761 states, 7747 states have (on average 2.828320640247838) internal successors, (21911), 7760 states have internal predecessors, (21911), 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 10:47:54,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7761 states to 7761 states and 21911 transitions. [2022-09-16 10:47:54,460 INFO L78 Accepts]: Start accepts. Automaton has 7761 states and 21911 transitions. Word has length 107 [2022-09-16 10:47:54,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:54,460 INFO L495 AbstractCegarLoop]: Abstraction has 7761 states and 21911 transitions. [2022-09-16 10:47:54,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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 10:47:54,460 INFO L276 IsEmpty]: Start isEmpty. Operand 7761 states and 21911 transitions. [2022-09-16 10:47:54,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-09-16 10:47:54,464 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:54,465 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:54,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:47:54,465 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:47:54,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:54,465 INFO L85 PathProgramCache]: Analyzing trace with hash 90993818, now seen corresponding path program 1 times [2022-09-16 10:47:54,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:54,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189462881] [2022-09-16 10:47:54,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:54,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:54,508 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 10:47:54,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:54,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189462881] [2022-09-16 10:47:54,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189462881] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:54,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:54,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:47:54,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838558953] [2022-09-16 10:47:54,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:54,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:47:54,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:54,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:47:54,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:47:54,509 INFO L87 Difference]: Start difference. First operand 7761 states and 21911 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 10:47:54,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:54,640 INFO L93 Difference]: Finished difference Result 9970 states and 27836 transitions. [2022-09-16 10:47:54,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:47:54,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 111 [2022-09-16 10:47:54,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:54,659 INFO L225 Difference]: With dead ends: 9970 [2022-09-16 10:47:54,660 INFO L226 Difference]: Without dead ends: 9930 [2022-09-16 10:47:54,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:47:54,661 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 277 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:54,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 1214 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:47:54,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9930 states. [2022-09-16 10:47:54,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9930 to 7915. [2022-09-16 10:47:54,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7915 states, 7901 states have (on average 2.8272370586001774) internal successors, (22338), 7914 states have internal predecessors, (22338), 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 10:47:54,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7915 states to 7915 states and 22338 transitions. [2022-09-16 10:47:54,812 INFO L78 Accepts]: Start accepts. Automaton has 7915 states and 22338 transitions. Word has length 111 [2022-09-16 10:47:54,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:54,812 INFO L495 AbstractCegarLoop]: Abstraction has 7915 states and 22338 transitions. [2022-09-16 10:47:54,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 10:47:54,812 INFO L276 IsEmpty]: Start isEmpty. Operand 7915 states and 22338 transitions. [2022-09-16 10:47:54,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-09-16 10:47:54,816 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:54,817 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:54,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:47:54,817 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:47:54,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:54,817 INFO L85 PathProgramCache]: Analyzing trace with hash -73326470, now seen corresponding path program 1 times [2022-09-16 10:47:54,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:54,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404281059] [2022-09-16 10:47:54,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:54,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:54,894 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 10:47:54,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:54,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404281059] [2022-09-16 10:47:54,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404281059] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:54,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:54,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:47:54,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714192976] [2022-09-16 10:47:54,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:54,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:47:54,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:54,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:47:54,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:47:54,895 INFO L87 Difference]: Start difference. First operand 7915 states and 22338 transitions. Second operand has 4 states, 3 states have (on average 37.0) internal successors, (111), 4 states have internal predecessors, (111), 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 10:47:54,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:54,976 INFO L93 Difference]: Finished difference Result 13968 states and 39650 transitions. [2022-09-16 10:47:54,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:47:54,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 37.0) internal successors, (111), 4 states have internal predecessors, (111), 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 111 [2022-09-16 10:47:54,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:55,010 INFO L225 Difference]: With dead ends: 13968 [2022-09-16 10:47:55,010 INFO L226 Difference]: Without dead ends: 13968 [2022-09-16 10:47:55,010 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 10:47:55,011 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 176 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:55,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 757 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:47:55,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13968 states. [2022-09-16 10:47:55,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13968 to 11155. [2022-09-16 10:47:55,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11155 states, 11141 states have (on average 2.8749663405439367) internal successors, (32030), 11154 states have internal predecessors, (32030), 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 10:47:55,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11155 states to 11155 states and 32030 transitions. [2022-09-16 10:47:55,231 INFO L78 Accepts]: Start accepts. Automaton has 11155 states and 32030 transitions. Word has length 111 [2022-09-16 10:47:55,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:55,232 INFO L495 AbstractCegarLoop]: Abstraction has 11155 states and 32030 transitions. [2022-09-16 10:47:55,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 37.0) internal successors, (111), 4 states have internal predecessors, (111), 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 10:47:55,232 INFO L276 IsEmpty]: Start isEmpty. Operand 11155 states and 32030 transitions. [2022-09-16 10:47:55,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-09-16 10:47:55,237 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:55,237 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:55,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 10:47:55,238 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:47:55,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:55,238 INFO L85 PathProgramCache]: Analyzing trace with hash 19058436, now seen corresponding path program 1 times [2022-09-16 10:47:55,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:55,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625623342] [2022-09-16 10:47:55,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:55,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:55,268 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 10:47:55,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:55,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625623342] [2022-09-16 10:47:55,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625623342] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:55,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:55,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:47:55,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228186850] [2022-09-16 10:47:55,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:55,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:47:55,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:55,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:47:55,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:47:55,269 INFO L87 Difference]: Start difference. First operand 11155 states and 32030 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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 10:47:55,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:55,344 INFO L93 Difference]: Finished difference Result 14444 states and 41100 transitions. [2022-09-16 10:47:55,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:47:55,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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 10:47:55,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:55,378 INFO L225 Difference]: With dead ends: 14444 [2022-09-16 10:47:55,378 INFO L226 Difference]: Without dead ends: 14408 [2022-09-16 10:47:55,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 10:47:55,379 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 156 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:55,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 783 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:47:55,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14408 states. [2022-09-16 10:47:55,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14408 to 13319. [2022-09-16 10:47:55,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13319 states, 13305 states have (on average 2.869823374671176) internal successors, (38183), 13318 states have internal predecessors, (38183), 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 10:47:55,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13319 states to 13319 states and 38183 transitions. [2022-09-16 10:47:55,678 INFO L78 Accepts]: Start accepts. Automaton has 13319 states and 38183 transitions. Word has length 113 [2022-09-16 10:47:55,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:55,679 INFO L495 AbstractCegarLoop]: Abstraction has 13319 states and 38183 transitions. [2022-09-16 10:47:55,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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 10:47:55,679 INFO L276 IsEmpty]: Start isEmpty. Operand 13319 states and 38183 transitions. [2022-09-16 10:47:55,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-09-16 10:47:55,689 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:55,689 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:55,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 10:47:55,689 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:47:55,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:55,690 INFO L85 PathProgramCache]: Analyzing trace with hash -829846007, now seen corresponding path program 1 times [2022-09-16 10:47:55,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:55,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663434268] [2022-09-16 10:47:55,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:55,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:55,733 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 10:47:55,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:55,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663434268] [2022-09-16 10:47:55,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663434268] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:55,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:55,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:47:55,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132794272] [2022-09-16 10:47:55,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:55,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:47:55,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:55,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:47:55,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:47:55,734 INFO L87 Difference]: Start difference. First operand 13319 states and 38183 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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 10:47:55,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:55,830 INFO L93 Difference]: Finished difference Result 16883 states and 48035 transitions. [2022-09-16 10:47:55,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:47:55,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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 10:47:55,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:55,866 INFO L225 Difference]: With dead ends: 16883 [2022-09-16 10:47:55,866 INFO L226 Difference]: Without dead ends: 16843 [2022-09-16 10:47:55,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:47:55,868 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 259 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:55,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 1184 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:47:55,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16843 states. [2022-09-16 10:47:56,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16843 to 13586. [2022-09-16 10:47:56,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13586 states, 13572 states have (on average 2.869068670792809) internal successors, (38939), 13585 states have internal predecessors, (38939), 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 10:47:56,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13586 states to 13586 states and 38939 transitions. [2022-09-16 10:47:56,118 INFO L78 Accepts]: Start accepts. Automaton has 13586 states and 38939 transitions. Word has length 117 [2022-09-16 10:47:56,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:56,119 INFO L495 AbstractCegarLoop]: Abstraction has 13586 states and 38939 transitions. [2022-09-16 10:47:56,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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 10:47:56,119 INFO L276 IsEmpty]: Start isEmpty. Operand 13586 states and 38939 transitions. [2022-09-16 10:47:56,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-09-16 10:47:56,127 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:56,127 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:47:56,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 10:47:56,127 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:47:56,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:56,127 INFO L85 PathProgramCache]: Analyzing trace with hash -994166295, now seen corresponding path program 1 times [2022-09-16 10:47:56,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:56,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934487358] [2022-09-16 10:47:56,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:56,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:56,169 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 10:47:56,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:56,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934487358] [2022-09-16 10:47:56,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934487358] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:56,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:56,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:47:56,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139937610] [2022-09-16 10:47:56,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:56,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:47:56,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:56,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:47:56,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:47:56,171 INFO L87 Difference]: Start difference. First operand 13586 states and 38939 transitions. Second operand has 4 states, 3 states have (on average 39.0) internal successors, (117), 4 states have internal predecessors, (117), 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 10:47:56,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:56,287 INFO L93 Difference]: Finished difference Result 23706 states and 68526 transitions. [2022-09-16 10:47:56,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:47:56,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 39.0) internal successors, (117), 4 states have internal predecessors, (117), 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 10:47:56,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:56,347 INFO L225 Difference]: With dead ends: 23706 [2022-09-16 10:47:56,348 INFO L226 Difference]: Without dead ends: 23706 [2022-09-16 10:47:56,348 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 10:47:56,348 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 164 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:56,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 745 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:47:56,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23706 states. [2022-09-16 10:47:56,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23706 to 19086. [2022-09-16 10:47:56,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19086 states, 19072 states have (on average 2.9185717281879193) internal successors, (55663), 19085 states have internal predecessors, (55663), 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 10:47:56,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19086 states to 19086 states and 55663 transitions. [2022-09-16 10:47:56,991 INFO L78 Accepts]: Start accepts. Automaton has 19086 states and 55663 transitions. Word has length 117 [2022-09-16 10:47:56,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:56,991 INFO L495 AbstractCegarLoop]: Abstraction has 19086 states and 55663 transitions. [2022-09-16 10:47:56,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 39.0) internal successors, (117), 4 states have internal predecessors, (117), 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 10:47:56,992 INFO L276 IsEmpty]: Start isEmpty. Operand 19086 states and 55663 transitions. [2022-09-16 10:47:57,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-09-16 10:47:57,000 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:57,001 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, 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 10:47:57,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-09-16 10:47:57,001 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:47:57,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:57,001 INFO L85 PathProgramCache]: Analyzing trace with hash 75095103, now seen corresponding path program 1 times [2022-09-16 10:47:57,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:57,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626117430] [2022-09-16 10:47:57,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:57,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:57,035 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 10:47:57,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:57,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626117430] [2022-09-16 10:47:57,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626117430] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:57,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:57,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:47:57,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989405705] [2022-09-16 10:47:57,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:57,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:47:57,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:57,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:47:57,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:47:57,036 INFO L87 Difference]: Start difference. First operand 19086 states and 55663 transitions. Second operand has 3 states, 2 states have (on average 60.5) internal successors, (121), 3 states have internal predecessors, (121), 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 10:47:57,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:57,126 INFO L93 Difference]: Finished difference Result 19902 states and 57708 transitions. [2022-09-16 10:47:57,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:47:57,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 60.5) internal successors, (121), 3 states have internal predecessors, (121), 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 121 [2022-09-16 10:47:57,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:57,171 INFO L225 Difference]: With dead ends: 19902 [2022-09-16 10:47:57,171 INFO L226 Difference]: Without dead ends: 19710 [2022-09-16 10:47:57,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:47:57,172 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 80 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:57,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 258 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:47:57,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19710 states. [2022-09-16 10:47:57,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19710 to 19686. [2022-09-16 10:47:57,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19686 states, 19672 states have (on average 2.8980784871899146) internal successors, (57011), 19685 states have internal predecessors, (57011), 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 10:47:57,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19686 states to 19686 states and 57011 transitions. [2022-09-16 10:47:57,764 INFO L78 Accepts]: Start accepts. Automaton has 19686 states and 57011 transitions. Word has length 121 [2022-09-16 10:47:57,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:57,765 INFO L495 AbstractCegarLoop]: Abstraction has 19686 states and 57011 transitions. [2022-09-16 10:47:57,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 60.5) internal successors, (121), 3 states have internal predecessors, (121), 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 10:47:57,765 INFO L276 IsEmpty]: Start isEmpty. Operand 19686 states and 57011 transitions. [2022-09-16 10:47:57,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-09-16 10:47:57,796 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:57,796 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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 10:47:57,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-16 10:47:57,797 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:47:57,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:57,797 INFO L85 PathProgramCache]: Analyzing trace with hash 232762863, now seen corresponding path program 1 times [2022-09-16 10:47:57,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:57,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626868442] [2022-09-16 10:47:57,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:57,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:57,833 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:47:57,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:57,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626868442] [2022-09-16 10:47:57,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626868442] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:57,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:57,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:47:57,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661696248] [2022-09-16 10:47:57,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:57,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:47:57,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:57,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:47:57,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:47:57,835 INFO L87 Difference]: Start difference. First operand 19686 states and 57011 transitions. Second operand has 4 states, 3 states have (on average 44.333333333333336) internal successors, (133), 4 states have internal predecessors, (133), 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 10:47:57,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:57,937 INFO L93 Difference]: Finished difference Result 20436 states and 58666 transitions. [2022-09-16 10:47:57,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:47:57,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 44.333333333333336) internal successors, (133), 4 states have internal predecessors, (133), 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 133 [2022-09-16 10:47:57,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:58,100 INFO L225 Difference]: With dead ends: 20436 [2022-09-16 10:47:58,100 INFO L226 Difference]: Without dead ends: 20436 [2022-09-16 10:47:58,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 10:47:58,101 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 185 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:58,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 733 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:47:58,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20436 states. [2022-09-16 10:47:58,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20436 to 19408. [2022-09-16 10:47:58,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19408 states, 19398 states have (on average 2.897772966285184) internal successors, (56211), 19407 states have internal predecessors, (56211), 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 10:47:58,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19408 states to 19408 states and 56211 transitions. [2022-09-16 10:47:58,532 INFO L78 Accepts]: Start accepts. Automaton has 19408 states and 56211 transitions. Word has length 133 [2022-09-16 10:47:58,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:58,533 INFO L495 AbstractCegarLoop]: Abstraction has 19408 states and 56211 transitions. [2022-09-16 10:47:58,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 44.333333333333336) internal successors, (133), 4 states have internal predecessors, (133), 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 10:47:58,533 INFO L276 IsEmpty]: Start isEmpty. Operand 19408 states and 56211 transitions. [2022-09-16 10:47:58,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-09-16 10:47:58,553 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:58,553 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:47:58,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-09-16 10:47:58,553 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:47:58,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:58,554 INFO L85 PathProgramCache]: Analyzing trace with hash 530237069, now seen corresponding path program 1 times [2022-09-16 10:47:58,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:58,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489638104] [2022-09-16 10:47:58,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:58,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:58,589 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 10:47:58,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:58,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489638104] [2022-09-16 10:47:58,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489638104] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:58,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:58,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:47:58,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884791129] [2022-09-16 10:47:58,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:58,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:47:58,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:58,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:47:58,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:47:58,590 INFO L87 Difference]: Start difference. First operand 19408 states and 56211 transitions. Second operand has 5 states, 4 states have (on average 33.5) internal successors, (134), 5 states have internal predecessors, (134), 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 10:47:58,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:58,709 INFO L93 Difference]: Finished difference Result 24563 states and 70347 transitions. [2022-09-16 10:47:58,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 10:47:58,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 33.5) internal successors, (134), 5 states have internal predecessors, (134), 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 134 [2022-09-16 10:47:58,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:58,754 INFO L225 Difference]: With dead ends: 24563 [2022-09-16 10:47:58,754 INFO L226 Difference]: Without dead ends: 24563 [2022-09-16 10:47:58,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:47:58,755 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 353 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:58,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 840 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:47:58,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24563 states. [2022-09-16 10:47:59,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24563 to 22566. [2022-09-16 10:47:59,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22566 states, 22556 states have (on average 2.881140273098067) internal successors, (64987), 22565 states have internal predecessors, (64987), 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 10:47:59,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22566 states to 22566 states and 64987 transitions. [2022-09-16 10:47:59,253 INFO L78 Accepts]: Start accepts. Automaton has 22566 states and 64987 transitions. Word has length 134 [2022-09-16 10:47:59,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:47:59,253 INFO L495 AbstractCegarLoop]: Abstraction has 22566 states and 64987 transitions. [2022-09-16 10:47:59,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 33.5) internal successors, (134), 5 states have internal predecessors, (134), 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 10:47:59,253 INFO L276 IsEmpty]: Start isEmpty. Operand 22566 states and 64987 transitions. [2022-09-16 10:47:59,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-09-16 10:47:59,272 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:47:59,272 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2022-09-16 10:47:59,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-09-16 10:47:59,273 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:47:59,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:47:59,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1374285200, now seen corresponding path program 1 times [2022-09-16 10:47:59,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:47:59,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797244534] [2022-09-16 10:47:59,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:47:59,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:47:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:47:59,308 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-09-16 10:47:59,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:47:59,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797244534] [2022-09-16 10:47:59,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797244534] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:47:59,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:47:59,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:47:59,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243309112] [2022-09-16 10:47:59,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:47:59,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:47:59,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:47:59,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:47:59,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:47:59,309 INFO L87 Difference]: Start difference. First operand 22566 states and 64987 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 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 10:47:59,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:47:59,425 INFO L93 Difference]: Finished difference Result 22582 states and 65003 transitions. [2022-09-16 10:47:59,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:47:59,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 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 134 [2022-09-16 10:47:59,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:47:59,605 INFO L225 Difference]: With dead ends: 22582 [2022-09-16 10:47:59,605 INFO L226 Difference]: Without dead ends: 22582 [2022-09-16 10:47:59,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:47:59,606 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 368 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:47:59,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 402 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:47:59,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22582 states. [2022-09-16 10:48:00,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22582 to 22568. [2022-09-16 10:48:00,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22568 states, 22558 states have (on average 2.8809734905576736) internal successors, (64989), 22567 states have internal predecessors, (64989), 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 10:48:00,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22568 states to 22568 states and 64989 transitions. [2022-09-16 10:48:00,100 INFO L78 Accepts]: Start accepts. Automaton has 22568 states and 64989 transitions. Word has length 134 [2022-09-16 10:48:00,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:00,100 INFO L495 AbstractCegarLoop]: Abstraction has 22568 states and 64989 transitions. [2022-09-16 10:48:00,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 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 10:48:00,100 INFO L276 IsEmpty]: Start isEmpty. Operand 22568 states and 64989 transitions. [2022-09-16 10:48:00,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-09-16 10:48:00,138 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:00,138 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:00,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-09-16 10:48:00,139 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:48:00,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:00,139 INFO L85 PathProgramCache]: Analyzing trace with hash 625889832, now seen corresponding path program 1 times [2022-09-16 10:48:00,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:00,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318362505] [2022-09-16 10:48:00,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:00,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:00,215 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-09-16 10:48:00,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:00,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318362505] [2022-09-16 10:48:00,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318362505] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:48:00,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715437417] [2022-09-16 10:48:00,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:00,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:48:00,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:48:00,232 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 10:48:00,233 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 10:48:00,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:00,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 10:48:00,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:48:00,391 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-09-16 10:48:00,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:48:00,456 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-09-16 10:48:00,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715437417] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:48:00,456 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:48:00,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-09-16 10:48:00,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479276064] [2022-09-16 10:48:00,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:48:00,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-09-16 10:48:00,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:00,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-09-16 10:48:00,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-09-16 10:48:00,458 INFO L87 Difference]: Start difference. First operand 22568 states and 64989 transitions. Second operand has 15 states, 15 states have (on average 11.6) internal successors, (174), 15 states have internal predecessors, (174), 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 10:48:00,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:00,679 INFO L93 Difference]: Finished difference Result 22604 states and 65025 transitions. [2022-09-16 10:48:00,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 10:48:00,680 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.6) internal successors, (174), 15 states have internal predecessors, (174), 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 152 [2022-09-16 10:48:00,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:00,721 INFO L225 Difference]: With dead ends: 22604 [2022-09-16 10:48:00,722 INFO L226 Difference]: Without dead ends: 22604 [2022-09-16 10:48:00,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-09-16 10:48:00,722 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 908 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:00,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 592 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:48:00,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22604 states. [2022-09-16 10:48:01,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22604 to 22604. [2022-09-16 10:48:01,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22604 states, 22594 states have (on average 2.877976453925821) internal successors, (65025), 22603 states have internal predecessors, (65025), 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 10:48:01,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22604 states to 22604 states and 65025 transitions. [2022-09-16 10:48:01,211 INFO L78 Accepts]: Start accepts. Automaton has 22604 states and 65025 transitions. Word has length 152 [2022-09-16 10:48:01,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:01,211 INFO L495 AbstractCegarLoop]: Abstraction has 22604 states and 65025 transitions. [2022-09-16 10:48:01,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.6) internal successors, (174), 15 states have internal predecessors, (174), 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 10:48:01,212 INFO L276 IsEmpty]: Start isEmpty. Operand 22604 states and 65025 transitions. [2022-09-16 10:48:01,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-09-16 10:48:01,248 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:01,248 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2022-09-16 10:48:01,269 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 10:48:01,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-09-16 10:48:01,464 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:48:01,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:01,465 INFO L85 PathProgramCache]: Analyzing trace with hash 625599144, now seen corresponding path program 2 times [2022-09-16 10:48:01,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:01,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251358603] [2022-09-16 10:48:01,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:01,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:01,564 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-09-16 10:48:01,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:01,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251358603] [2022-09-16 10:48:01,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251358603] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:48:01,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707993067] [2022-09-16 10:48:01,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:48:01,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:48:01,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:48:01,568 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 10:48:01,569 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 10:48:01,657 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:48:01,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:48:01,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:48:01,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:48:01,853 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-09-16 10:48:01,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:48:01,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707993067] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:01,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:48:01,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 14 [2022-09-16 10:48:01,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524702787] [2022-09-16 10:48:01,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:01,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:48:01,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:01,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:48:01,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-09-16 10:48:01,855 INFO L87 Difference]: Start difference. First operand 22604 states and 65025 transitions. Second operand has 5 states, 4 states have (on average 38.0) internal successors, (152), 5 states have internal predecessors, (152), 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 10:48:02,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:02,038 INFO L93 Difference]: Finished difference Result 22326 states and 64177 transitions. [2022-09-16 10:48:02,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:48:02,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 38.0) internal successors, (152), 5 states have internal predecessors, (152), 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 188 [2022-09-16 10:48:02,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:02,096 INFO L225 Difference]: With dead ends: 22326 [2022-09-16 10:48:02,096 INFO L226 Difference]: Without dead ends: 21526 [2022-09-16 10:48:02,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-09-16 10:48:02,103 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 183 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:02,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 674 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:48:02,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21526 states. [2022-09-16 10:48:02,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21526 to 15086. [2022-09-16 10:48:02,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15086 states, 15080 states have (on average 2.821551724137931) internal successors, (42549), 15085 states have internal predecessors, (42549), 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 10:48:02,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15086 states to 15086 states and 42549 transitions. [2022-09-16 10:48:02,537 INFO L78 Accepts]: Start accepts. Automaton has 15086 states and 42549 transitions. Word has length 188 [2022-09-16 10:48:02,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:02,537 INFO L495 AbstractCegarLoop]: Abstraction has 15086 states and 42549 transitions. [2022-09-16 10:48:02,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 38.0) internal successors, (152), 5 states have internal predecessors, (152), 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 10:48:02,537 INFO L276 IsEmpty]: Start isEmpty. Operand 15086 states and 42549 transitions. [2022-09-16 10:48:02,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-09-16 10:48:02,550 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:02,550 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:48:02,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-16 10:48:02,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-09-16 10:48:02,759 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:48:02,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:02,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1124352925, now seen corresponding path program 1 times [2022-09-16 10:48:02,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:02,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900230973] [2022-09-16 10:48:02,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:02,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:02,886 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-09-16 10:48:02,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:02,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900230973] [2022-09-16 10:48:02,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900230973] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:48:02,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515838175] [2022-09-16 10:48:02,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:02,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:48:02,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:48:02,894 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 10:48:02,896 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 10:48:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:02,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-16 10:48:02,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:48:03,136 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-09-16 10:48:03,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:48:03,244 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-09-16 10:48:03,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515838175] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:48:03,244 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:48:03,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-09-16 10:48:03,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569538562] [2022-09-16 10:48:03,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:48:03,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:48:03,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:03,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:48:03,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:48:03,246 INFO L87 Difference]: Start difference. First operand 15086 states and 42549 transitions. Second operand has 22 states, 22 states have (on average 10.454545454545455) internal successors, (230), 22 states have internal predecessors, (230), 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 10:48:03,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:03,582 INFO L93 Difference]: Finished difference Result 15122 states and 42585 transitions. [2022-09-16 10:48:03,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-16 10:48:03,583 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.454545454545455) internal successors, (230), 22 states have internal predecessors, (230), 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 189 [2022-09-16 10:48:03,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:03,612 INFO L225 Difference]: With dead ends: 15122 [2022-09-16 10:48:03,612 INFO L226 Difference]: Without dead ends: 15122 [2022-09-16 10:48:03,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 362 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=370, Invalid=890, Unknown=0, NotChecked=0, Total=1260 [2022-09-16 10:48:03,613 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 546 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:03,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 1303 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:48:03,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15122 states. [2022-09-16 10:48:03,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15122 to 15122. [2022-09-16 10:48:03,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15122 states, 15116 states have (on average 2.8172135485578194) internal successors, (42585), 15121 states have internal predecessors, (42585), 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 10:48:03,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15122 states to 15122 states and 42585 transitions. [2022-09-16 10:48:03,950 INFO L78 Accepts]: Start accepts. Automaton has 15122 states and 42585 transitions. Word has length 189 [2022-09-16 10:48:03,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:03,950 INFO L495 AbstractCegarLoop]: Abstraction has 15122 states and 42585 transitions. [2022-09-16 10:48:03,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.454545454545455) internal successors, (230), 22 states have internal predecessors, (230), 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 10:48:03,950 INFO L276 IsEmpty]: Start isEmpty. Operand 15122 states and 42585 transitions. [2022-09-16 10:48:03,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-09-16 10:48:03,965 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:03,965 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:48:03,982 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 10:48:04,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-09-16 10:48:04,180 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:48:04,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:04,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1679768803, now seen corresponding path program 2 times [2022-09-16 10:48:04,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:04,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967575444] [2022-09-16 10:48:04,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:04,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:04,247 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-09-16 10:48:04,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:04,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967575444] [2022-09-16 10:48:04,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967575444] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:04,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:04,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:48:04,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592034107] [2022-09-16 10:48:04,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:04,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:48:04,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:04,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:48:04,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:48:04,249 INFO L87 Difference]: Start difference. First operand 15122 states and 42585 transitions. Second operand has 5 states, 4 states have (on average 38.25) internal successors, (153), 5 states have internal predecessors, (153), 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 10:48:04,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:04,341 INFO L93 Difference]: Finished difference Result 15123 states and 42585 transitions. [2022-09-16 10:48:04,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:48:04,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 38.25) internal successors, (153), 5 states have internal predecessors, (153), 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 225 [2022-09-16 10:48:04,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:04,366 INFO L225 Difference]: With dead ends: 15123 [2022-09-16 10:48:04,366 INFO L226 Difference]: Without dead ends: 12741 [2022-09-16 10:48:04,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:48:04,366 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 181 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:04,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1109 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:48:04,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12741 states. [2022-09-16 10:48:04,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12741 to 12741. [2022-09-16 10:48:04,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12741 states, 12735 states have (on average 2.8056537102473498) internal successors, (35730), 12740 states have internal predecessors, (35730), 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 10:48:04,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12741 states to 12741 states and 35730 transitions. [2022-09-16 10:48:04,575 INFO L78 Accepts]: Start accepts. Automaton has 12741 states and 35730 transitions. Word has length 225 [2022-09-16 10:48:04,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:04,575 INFO L495 AbstractCegarLoop]: Abstraction has 12741 states and 35730 transitions. [2022-09-16 10:48:04,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 38.25) internal successors, (153), 5 states have internal predecessors, (153), 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 10:48:04,575 INFO L276 IsEmpty]: Start isEmpty. Operand 12741 states and 35730 transitions. [2022-09-16 10:48:04,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-09-16 10:48:04,588 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:04,588 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:48:04,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-09-16 10:48:04,589 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:48:04,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:04,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1870036726, now seen corresponding path program 1 times [2022-09-16 10:48:04,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:04,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593598025] [2022-09-16 10:48:04,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:04,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:04,645 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-09-16 10:48:04,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:04,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593598025] [2022-09-16 10:48:04,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593598025] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:04,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:04,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:48:04,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990377605] [2022-09-16 10:48:04,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:04,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:48:04,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:04,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:48:04,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:48:04,647 INFO L87 Difference]: Start difference. First operand 12741 states and 35730 transitions. Second operand has 6 states, 5 states have (on average 31.2) internal successors, (156), 6 states have internal predecessors, (156), 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 10:48:04,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:04,870 INFO L93 Difference]: Finished difference Result 13476 states and 37602 transitions. [2022-09-16 10:48:04,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:48:04,871 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 31.2) internal successors, (156), 6 states have internal predecessors, (156), 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 228 [2022-09-16 10:48:04,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:04,888 INFO L225 Difference]: With dead ends: 13476 [2022-09-16 10:48:04,889 INFO L226 Difference]: Without dead ends: 10911 [2022-09-16 10:48:04,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:48:04,889 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 286 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:04,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 1549 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:48:04,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10911 states. [2022-09-16 10:48:05,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10911 to 10911. [2022-09-16 10:48:05,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10911 states, 10905 states have (on average 2.772489683631362) internal successors, (30234), 10910 states have internal predecessors, (30234), 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 10:48:05,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10911 states to 10911 states and 30234 transitions. [2022-09-16 10:48:05,065 INFO L78 Accepts]: Start accepts. Automaton has 10911 states and 30234 transitions. Word has length 228 [2022-09-16 10:48:05,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:05,066 INFO L495 AbstractCegarLoop]: Abstraction has 10911 states and 30234 transitions. [2022-09-16 10:48:05,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 31.2) internal successors, (156), 6 states have internal predecessors, (156), 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 10:48:05,066 INFO L276 IsEmpty]: Start isEmpty. Operand 10911 states and 30234 transitions. [2022-09-16 10:48:05,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-09-16 10:48:05,076 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:05,077 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:48:05,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-09-16 10:48:05,077 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:48:05,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:05,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1521312086, now seen corresponding path program 1 times [2022-09-16 10:48:05,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:05,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616242064] [2022-09-16 10:48:05,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:05,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:05,126 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-09-16 10:48:05,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:05,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616242064] [2022-09-16 10:48:05,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616242064] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:05,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:05,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:48:05,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77638820] [2022-09-16 10:48:05,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:05,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:48:05,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:05,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:48:05,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:48:05,128 INFO L87 Difference]: Start difference. First operand 10911 states and 30234 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 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 10:48:05,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:05,187 INFO L93 Difference]: Finished difference Result 10174 states and 27994 transitions. [2022-09-16 10:48:05,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:48:05,188 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 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 228 [2022-09-16 10:48:05,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:05,204 INFO L225 Difference]: With dead ends: 10174 [2022-09-16 10:48:05,204 INFO L226 Difference]: Without dead ends: 10174 [2022-09-16 10:48:05,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:48:05,206 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 257 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:05,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 1079 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:48:05,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10174 states. [2022-09-16 10:48:05,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10174 to 10174. [2022-09-16 10:48:05,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10174 states, 10170 states have (on average 2.752605703048181) internal successors, (27994), 10173 states have internal predecessors, (27994), 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 10:48:05,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10174 states to 10174 states and 27994 transitions. [2022-09-16 10:48:05,428 INFO L78 Accepts]: Start accepts. Automaton has 10174 states and 27994 transitions. Word has length 228 [2022-09-16 10:48:05,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:05,429 INFO L495 AbstractCegarLoop]: Abstraction has 10174 states and 27994 transitions. [2022-09-16 10:48:05,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 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 10:48:05,429 INFO L276 IsEmpty]: Start isEmpty. Operand 10174 states and 27994 transitions. [2022-09-16 10:48:05,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-09-16 10:48:05,439 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:05,439 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:05,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-09-16 10:48:05,439 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:48:05,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:05,440 INFO L85 PathProgramCache]: Analyzing trace with hash 682256614, now seen corresponding path program 1 times [2022-09-16 10:48:05,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:05,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482346685] [2022-09-16 10:48:05,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:05,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:05,490 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-09-16 10:48:05,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:05,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482346685] [2022-09-16 10:48:05,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482346685] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:05,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:48:05,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:48:05,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605386883] [2022-09-16 10:48:05,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:05,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:48:05,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:05,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:48:05,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:48:05,492 INFO L87 Difference]: Start difference. First operand 10174 states and 27994 transitions. Second operand has 4 states, 3 states have (on average 52.333333333333336) internal successors, (157), 4 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 10:48:05,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:05,545 INFO L93 Difference]: Finished difference Result 9987 states and 27470 transitions. [2022-09-16 10:48:05,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:48:05,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 52.333333333333336) internal successors, (157), 4 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 229 [2022-09-16 10:48:05,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:05,564 INFO L225 Difference]: With dead ends: 9987 [2022-09-16 10:48:05,564 INFO L226 Difference]: Without dead ends: 9987 [2022-09-16 10:48:05,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 10:48:05,564 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 152 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:05,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 675 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:48:05,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9987 states. [2022-09-16 10:48:05,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9987 to 9987. [2022-09-16 10:48:05,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9987 states, 9985 states have (on average 2.7511266900350524) internal successors, (27470), 9986 states have internal predecessors, (27470), 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 10:48:05,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9987 states to 9987 states and 27470 transitions. [2022-09-16 10:48:05,751 INFO L78 Accepts]: Start accepts. Automaton has 9987 states and 27470 transitions. Word has length 229 [2022-09-16 10:48:05,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:05,751 INFO L495 AbstractCegarLoop]: Abstraction has 9987 states and 27470 transitions. [2022-09-16 10:48:05,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 52.333333333333336) internal successors, (157), 4 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 10:48:05,751 INFO L276 IsEmpty]: Start isEmpty. Operand 9987 states and 27470 transitions. [2022-09-16 10:48:05,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-09-16 10:48:05,762 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:48:05,763 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2022-09-16 10:48:05,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-09-16 10:48:05,763 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:48:05,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:48:05,763 INFO L85 PathProgramCache]: Analyzing trace with hash -324880763, now seen corresponding path program 1 times [2022-09-16 10:48:05,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:48:05,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423968066] [2022-09-16 10:48:05,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:05,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:48:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:05,834 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-09-16 10:48:05,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:48:05,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423968066] [2022-09-16 10:48:05,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423968066] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:48:05,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605909497] [2022-09-16 10:48:05,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:48:05,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:48:05,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:48:05,852 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 10:48:05,899 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 10:48:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:48:05,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:48:05,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:48:06,052 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-09-16 10:48:06,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:48:06,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605909497] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:48:06,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:48:06,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:48:06,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162990560] [2022-09-16 10:48:06,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:48:06,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:48:06,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:48:06,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:48:06,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:48:06,054 INFO L87 Difference]: Start difference. First operand 9987 states and 27470 transitions. Second operand has 6 states, 5 states have (on average 31.6) internal successors, (158), 6 states have internal predecessors, (158), 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 10:48:06,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:48:06,203 INFO L93 Difference]: Finished difference Result 10174 states and 27994 transitions. [2022-09-16 10:48:06,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:48:06,203 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 31.6) internal successors, (158), 6 states have internal predecessors, (158), 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 230 [2022-09-16 10:48:06,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:48:06,204 INFO L225 Difference]: With dead ends: 10174 [2022-09-16 10:48:06,204 INFO L226 Difference]: Without dead ends: 0 [2022-09-16 10:48:06,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 228 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 10:48:06,205 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 238 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:48:06,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 1216 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:48:06,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-09-16 10:48:06,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-09-16 10:48:06,205 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 10:48:06,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-09-16 10:48:06,206 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 230 [2022-09-16 10:48:06,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:48:06,206 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-16 10:48:06,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 31.6) internal successors, (158), 6 states have internal predecessors, (158), 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 10:48:06,206 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-09-16 10:48:06,206 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-09-16 10:48:06,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2022-09-16 10:48:06,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2022-09-16 10:48:06,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2022-09-16 10:48:06,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2022-09-16 10:48:06,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2022-09-16 10:48:06,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2022-09-16 10:48:06,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2022-09-16 10:48:06,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2022-09-16 10:48:06,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2022-09-16 10:48:06,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2022-09-16 10:48:06,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 16 remaining) [2022-09-16 10:48:06,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-09-16 10:48:06,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2022-09-16 10:48:06,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2022-09-16 10:48:06,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2022-09-16 10:48:06,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2022-09-16 10:48:06,251 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 10:48:06,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:48:06,428 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:48:06,431 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 10:48:06,431 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 10:48:06,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 10:48:06 BasicIcfg [2022-09-16 10:48:06,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 10:48:06,433 INFO L158 Benchmark]: Toolchain (without parser) took 18165.65ms. Allocated memory was 191.9MB in the beginning and 4.8GB in the end (delta: 4.6GB). Free memory was 166.9MB in the beginning and 4.0GB in the end (delta: -3.9GB). Peak memory consumption was 729.0MB. Max. memory is 8.0GB. [2022-09-16 10:48:06,433 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 191.9MB. Free memory is still 153.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 10:48:06,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.07ms. Allocated memory is still 191.9MB. Free memory was 166.7MB in the beginning and 165.3MB in the end (delta: 1.5MB). Peak memory consumption was 10.4MB. Max. memory is 8.0GB. [2022-09-16 10:48:06,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.61ms. Allocated memory is still 191.9MB. Free memory was 165.3MB in the beginning and 163.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 10:48:06,434 INFO L158 Benchmark]: Boogie Preprocessor took 34.32ms. Allocated memory is still 191.9MB. Free memory was 163.3MB in the beginning and 161.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 10:48:06,434 INFO L158 Benchmark]: RCFGBuilder took 393.86ms. Allocated memory is still 191.9MB. Free memory was 161.2MB in the beginning and 143.0MB in the end (delta: 18.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-09-16 10:48:06,434 INFO L158 Benchmark]: TraceAbstraction took 17487.99ms. Allocated memory was 191.9MB in the beginning and 4.8GB in the end (delta: 4.6GB). Free memory was 141.9MB in the beginning and 4.0GB in the end (delta: -3.9GB). Peak memory consumption was 703.9MB. Max. memory is 8.0GB. [2022-09-16 10:48:06,436 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 191.9MB. Free memory is still 153.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 201.07ms. Allocated memory is still 191.9MB. Free memory was 166.7MB in the beginning and 165.3MB in the end (delta: 1.5MB). Peak memory consumption was 10.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.61ms. Allocated memory is still 191.9MB. Free memory was 165.3MB in the beginning and 163.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.32ms. Allocated memory is still 191.9MB. Free memory was 163.3MB in the beginning and 161.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 393.86ms. Allocated memory is still 191.9MB. Free memory was 161.2MB in the beginning and 143.0MB in the end (delta: 18.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 17487.99ms. Allocated memory was 191.9MB in the beginning and 4.8GB in the end (delta: 4.6GB). Free memory was 141.9MB in the beginning and 4.0GB in the end (delta: -3.9GB). Peak memory consumption was 703.9MB. 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: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: 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 5 procedures, 301 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 17.4s, OverallIterations: 22, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.3s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9842 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9842 mSDsluCounter, 20291 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14579 mSDsCounter, 257 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1643 IncrementalHoareTripleChecker+Invalid, 1900 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 257 mSolverCounterUnsat, 5994 mSDtfsCounter, 1643 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1636 GetRequests, 1428 SyntacticMatches, 5 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22604occurred in iteration=15, InterpolantAutomatonStates: 169, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.1s AutomataMinimizationTime, 22 MinimizatonAttempts, 94811 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 4065 NumberOfCodeBlocks, 4029 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 4512 ConstructedInterpolants, 0 QuantifiedInterpolants, 7008 SizeOfPredicates, 29 NumberOfNonLiveVariables, 1883 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 33 InterpolantComputations, 18 PerfectInterpolantSequences, 1624/1910 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 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 10:48:06,468 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...