/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/popl20-bad-buffer-mult-alt2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:57:12,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:57:12,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:57:12,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:57:12,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:57:12,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:57:12,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:57:12,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:57:12,917 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:57:12,918 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:57:12,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:57:12,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:57:12,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:57:12,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:57:12,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:57:12,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:57:12,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:57:12,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:57:12,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:57:12,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:57:12,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:57:12,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:57:12,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:57:12,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:57:12,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:57:12,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:57:12,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:57:12,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:57:12,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:57:12,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:57:12,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:57:12,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:57:12,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:57:12,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:57:12,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:57:12,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:57:12,949 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:57:12,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:57:12,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:57:12,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:57:12,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:57:12,953 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 10:57:12,973 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:57:12,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:57:12,974 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:57:12,974 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:57:12,974 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:57:12,975 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:57:12,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:57:12,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:57:12,975 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:57:12,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:57:12,976 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:57:12,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:57:12,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:57:12,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:57:12,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:57:12,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:57:12,977 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:57:12,977 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:57:12,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:57:12,977 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:57:12,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:57:12,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:57:12,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:57:12,977 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:57:12,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:57:12,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:57:12,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:57:12,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:57:12,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:57:12,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:57:12,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:57:12,979 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:57:12,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:57:12,980 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:57:13,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:57:13,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:57:13,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:57:13,207 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:57:13,207 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:57:13,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2022-09-16 10:57:13,256 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a82da983a/8197af7b36a24e1aaa9fcd35d2be278d/FLAG3b1377fd2 [2022-09-16 10:57:13,562 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:57:13,562 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2022-09-16 10:57:13,568 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a82da983a/8197af7b36a24e1aaa9fcd35d2be278d/FLAG3b1377fd2 [2022-09-16 10:57:13,980 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a82da983a/8197af7b36a24e1aaa9fcd35d2be278d [2022-09-16 10:57:13,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:57:13,983 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:57:13,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:57:13,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:57:13,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:57:13,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:57:13" (1/1) ... [2022-09-16 10:57:13,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ae55f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:13, skipping insertion in model container [2022-09-16 10:57:13,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:57:13" (1/1) ... [2022-09-16 10:57:13,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:57:14,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:57:14,184 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/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2022-09-16 10:57:14,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:57:14,194 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:57:14,213 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/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2022-09-16 10:57:14,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:57:14,225 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:57:14,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:14 WrapperNode [2022-09-16 10:57:14,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:57:14,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:57:14,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:57:14,227 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:57:14,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:14" (1/1) ... [2022-09-16 10:57:14,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:14" (1/1) ... [2022-09-16 10:57:14,262 INFO L138 Inliner]: procedures = 26, calls = 75, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 361 [2022-09-16 10:57:14,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:57:14,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:57:14,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:57:14,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:57:14,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:14" (1/1) ... [2022-09-16 10:57:14,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:14" (1/1) ... [2022-09-16 10:57:14,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:14" (1/1) ... [2022-09-16 10:57:14,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:14" (1/1) ... [2022-09-16 10:57:14,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:14" (1/1) ... [2022-09-16 10:57:14,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:14" (1/1) ... [2022-09-16 10:57:14,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:14" (1/1) ... [2022-09-16 10:57:14,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:57:14,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:57:14,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:57:14,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:57:14,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:14" (1/1) ... [2022-09-16 10:57:14,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:57:14,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:57:14,330 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 10:57:14,335 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 10:57:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:57:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:57:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:57:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:57:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 10:57:14,369 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 10:57:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 10:57:14,369 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 10:57:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 10:57:14,369 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 10:57:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-09-16 10:57:14,370 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-09-16 10:57:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:57:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:57:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:57:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 10:57:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:57:14,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:57:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:57:14,371 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 10:57:14,467 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:57:14,488 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:57:14,911 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:57:15,266 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:57:15,266 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-09-16 10:57:15,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:57:15 BoogieIcfgContainer [2022-09-16 10:57:15,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:57:15,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:57:15,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:57:15,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:57:15,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:57:13" (1/3) ... [2022-09-16 10:57:15,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4657a6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:57:15, skipping insertion in model container [2022-09-16 10:57:15,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:14" (2/3) ... [2022-09-16 10:57:15,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4657a6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:57:15, skipping insertion in model container [2022-09-16 10:57:15,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:57:15" (3/3) ... [2022-09-16 10:57:15,275 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt2.wvr.c [2022-09-16 10:57:15,286 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:57:15,292 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:57:15,293 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-09-16 10:57:15,293 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:57:15,422 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-09-16 10:57:15,462 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 272 places, 278 transitions, 588 flow [2022-09-16 10:57:19,575 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 151701 states, 148863 states have (on average 4.999623815185775) internal successors, (744259), 151700 states have internal predecessors, (744259), 0 states have call successors, (0), 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 10:57:19,596 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:57:19,600 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;@989c993, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:57:19,601 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2022-09-16 10:57:19,852 INFO L276 IsEmpty]: Start isEmpty. Operand has 151701 states, 148863 states have (on average 4.999623815185775) internal successors, (744259), 151700 states have internal predecessors, (744259), 0 states have call successors, (0), 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 10:57:19,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-09-16 10:57:19,858 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:57:19,858 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] [2022-09-16 10:57:19,859 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:57:19,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:57:19,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1971124914, now seen corresponding path program 1 times [2022-09-16 10:57:19,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:57:19,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14931058] [2022-09-16 10:57:19,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:57:19,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:57:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:57:20,122 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 10:57:20,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:57:20,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14931058] [2022-09-16 10:57:20,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14931058] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:57:20,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:57:20,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:57:20,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554855079] [2022-09-16 10:57:20,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:57:20,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:57:20,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:57:20,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:57:20,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:57:20,787 INFO L87 Difference]: Start difference. First operand has 151701 states, 148863 states have (on average 4.999623815185775) internal successors, (744259), 151700 states have internal predecessors, (744259), 0 states have call successors, (0), 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 28.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 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 10:57:23,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:57:23,870 INFO L93 Difference]: Finished difference Result 167705 states and 770811 transitions. [2022-09-16 10:57:23,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:57:23,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 28.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2022-09-16 10:57:23,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:57:25,691 INFO L225 Difference]: With dead ends: 167705 [2022-09-16 10:57:25,691 INFO L226 Difference]: Without dead ends: 167697 [2022-09-16 10:57:25,693 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 10:57:25,695 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 123 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:57:25,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 556 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:57:26,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167697 states. [2022-09-16 10:57:30,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167697 to 83912. [2022-09-16 10:57:31,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83912 states, 83045 states have (on average 4.641664157986634) internal successors, (385467), 83911 states have internal predecessors, (385467), 0 states have call successors, (0), 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 10:57:31,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83912 states to 83912 states and 385467 transitions. [2022-09-16 10:57:31,999 INFO L78 Accepts]: Start accepts. Automaton has 83912 states and 385467 transitions. Word has length 84 [2022-09-16 10:57:32,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:57:32,000 INFO L495 AbstractCegarLoop]: Abstraction has 83912 states and 385467 transitions. [2022-09-16 10:57:32,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 28.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 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 10:57:32,001 INFO L276 IsEmpty]: Start isEmpty. Operand 83912 states and 385467 transitions. [2022-09-16 10:57:32,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-09-16 10:57:32,014 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:57:32,014 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:57:32,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:57:32,015 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:57:32,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:57:32,016 INFO L85 PathProgramCache]: Analyzing trace with hash 961121185, now seen corresponding path program 1 times [2022-09-16 10:57:32,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:57:32,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306660694] [2022-09-16 10:57:32,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:57:32,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:57:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:57:32,119 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 10:57:32,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:57:32,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306660694] [2022-09-16 10:57:32,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306660694] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:57:32,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108587248] [2022-09-16 10:57:32,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:57:32,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:57:32,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:57:32,123 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 10:57:32,126 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 10:57:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:57:32,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:57:32,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:57:32,415 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 10:57:32,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:57:32,468 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 10:57:32,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108587248] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:57:32,471 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:57:32,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 10:57:32,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304801836] [2022-09-16 10:57:32,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:57:32,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 10:57:32,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:57:32,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 10:57:32,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 10:57:32,480 INFO L87 Difference]: Start difference. First operand 83912 states and 385467 transitions. Second operand has 12 states, 11 states have (on average 10.727272727272727) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 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 10:57:39,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:57:39,072 INFO L93 Difference]: Finished difference Result 419098 states and 1926863 transitions. [2022-09-16 10:57:39,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 10:57:39,073 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.727272727272727) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 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 93 [2022-09-16 10:57:39,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:57:43,941 INFO L225 Difference]: With dead ends: 419098 [2022-09-16 10:57:43,942 INFO L226 Difference]: Without dead ends: 419098 [2022-09-16 10:57:43,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 179 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 10:57:43,943 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 631 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:57:43,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 1222 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:57:45,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419098 states. [2022-09-16 10:57:54,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419098 to 83964. [2022-09-16 10:57:54,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83964 states, 83097 states have (on average 4.639505637989338) internal successors, (385529), 83963 states have internal predecessors, (385529), 0 states have call successors, (0), 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 10:57:54,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83964 states to 83964 states and 385529 transitions. [2022-09-16 10:57:54,868 INFO L78 Accepts]: Start accepts. Automaton has 83964 states and 385529 transitions. Word has length 93 [2022-09-16 10:57:54,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:57:54,869 INFO L495 AbstractCegarLoop]: Abstraction has 83964 states and 385529 transitions. [2022-09-16 10:57:54,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.727272727272727) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 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 10:57:54,869 INFO L276 IsEmpty]: Start isEmpty. Operand 83964 states and 385529 transitions. [2022-09-16 10:57:54,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-09-16 10:57:54,870 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:57:54,870 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:57:54,888 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-09-16 10:57:55,083 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 10:57:55,084 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:57:55,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:57:55,084 INFO L85 PathProgramCache]: Analyzing trace with hash -270013192, now seen corresponding path program 1 times [2022-09-16 10:57:55,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:57:55,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852793103] [2022-09-16 10:57:55,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:57:55,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:57:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:57:55,181 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 10:57:55,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:57:55,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852793103] [2022-09-16 10:57:55,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852793103] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:57:55,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836521795] [2022-09-16 10:57:55,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:57:55,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:57:55,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:57:55,185 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 10:57:55,186 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 10:57:55,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:57:55,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:57:55,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:57:55,770 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 10:57:55,770 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:57:55,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836521795] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:57:55,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:57:55,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:57:55,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695330145] [2022-09-16 10:57:55,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:57:55,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:57:55,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:57:55,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:57:55,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:57:55,772 INFO L87 Difference]: Start difference. First operand 83964 states and 385529 transitions. Second operand has 6 states, 5 states have (on average 18.8) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 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 10:57:58,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:57:58,172 INFO L93 Difference]: Finished difference Result 167743 states and 770855 transitions. [2022-09-16 10:57:58,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:57:58,173 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.8) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-09-16 10:57:58,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:57:59,999 INFO L225 Difference]: With dead ends: 167743 [2022-09-16 10:57:59,999 INFO L226 Difference]: Without dead ends: 167743 [2022-09-16 10:58:00,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 92 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 10:58:00,000 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 245 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:58:00,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 1033 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:58:00,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167743 states. [2022-09-16 10:58:05,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167743 to 83962. [2022-09-16 10:58:05,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83962 states, 83097 states have (on average 4.6394334332166025) internal successors, (385523), 83961 states have internal predecessors, (385523), 0 states have call successors, (0), 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 10:58:06,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83962 states to 83962 states and 385523 transitions. [2022-09-16 10:58:06,774 INFO L78 Accepts]: Start accepts. Automaton has 83962 states and 385523 transitions. Word has length 94 [2022-09-16 10:58:06,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:58:06,775 INFO L495 AbstractCegarLoop]: Abstraction has 83962 states and 385523 transitions. [2022-09-16 10:58:06,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.8) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 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 10:58:06,799 INFO L276 IsEmpty]: Start isEmpty. Operand 83962 states and 385523 transitions. [2022-09-16 10:58:06,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-09-16 10:58:06,809 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:58:06,809 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:58:06,841 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 10:58:07,009 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 10:58:07,010 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:58:07,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:58:07,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1056392078, now seen corresponding path program 2 times [2022-09-16 10:58:07,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:58:07,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26222708] [2022-09-16 10:58:07,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:07,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:58:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:07,207 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 10:58:07,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:58:07,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26222708] [2022-09-16 10:58:07,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26222708] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:58:07,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407597796] [2022-09-16 10:58:07,209 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:58:07,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:58:07,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:58:07,226 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 10:58:07,266 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 10:58:07,458 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 10:58:07,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:58:07,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 10:58:07,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:58:07,609 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 10:58:07,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:58:07,727 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 10:58:07,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407597796] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:58:07,728 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:58:07,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-09-16 10:58:07,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176777268] [2022-09-16 10:58:07,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:58:07,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 10:58:07,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:58:07,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 10:58:07,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-09-16 10:58:07,729 INFO L87 Difference]: Start difference. First operand 83962 states and 385523 transitions. Second operand has 18 states, 17 states have (on average 9.529411764705882) internal successors, (162), 18 states have internal predecessors, (162), 0 states have call successors, (0), 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 10:58:15,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:58:15,262 INFO L93 Difference]: Finished difference Result 487602 states and 2238575 transitions. [2022-09-16 10:58:15,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-09-16 10:58:15,264 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 9.529411764705882) internal successors, (162), 18 states have internal predecessors, (162), 0 states have call successors, (0), 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 120 [2022-09-16 10:58:15,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:58:20,434 INFO L225 Difference]: With dead ends: 487602 [2022-09-16 10:58:20,434 INFO L226 Difference]: Without dead ends: 487602 [2022-09-16 10:58:20,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 229 SyntacticMatches, 5 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1178 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=991, Invalid=3041, Unknown=0, NotChecked=0, Total=4032 [2022-09-16 10:58:20,435 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 2755 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2755 SdHoareTripleChecker+Valid, 1909 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:58:20,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2755 Valid, 1909 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:58:21,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487602 states. [2022-09-16 10:58:30,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487602 to 69792. [2022-09-16 10:58:30,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69792 states, 69252 states have (on average 4.619895454282909) internal successors, (319937), 69791 states have internal predecessors, (319937), 0 states have call successors, (0), 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 10:58:31,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69792 states to 69792 states and 319937 transitions. [2022-09-16 10:58:31,750 INFO L78 Accepts]: Start accepts. Automaton has 69792 states and 319937 transitions. Word has length 120 [2022-09-16 10:58:31,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:58:31,750 INFO L495 AbstractCegarLoop]: Abstraction has 69792 states and 319937 transitions. [2022-09-16 10:58:31,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 9.529411764705882) internal successors, (162), 18 states have internal predecessors, (162), 0 states have call successors, (0), 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 10:58:31,751 INFO L276 IsEmpty]: Start isEmpty. Operand 69792 states and 319937 transitions. [2022-09-16 10:58:31,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-09-16 10:58:31,753 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:58:31,754 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] [2022-09-16 10:58:31,773 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 10:58:31,967 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 10:58:31,967 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:58:31,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:58:31,968 INFO L85 PathProgramCache]: Analyzing trace with hash -552023126, now seen corresponding path program 1 times [2022-09-16 10:58:31,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:58:31,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033605225] [2022-09-16 10:58:31,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:31,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:58:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:32,064 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 10:58:32,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:58:32,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033605225] [2022-09-16 10:58:32,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033605225] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:58:32,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:58:32,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:58:32,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936177840] [2022-09-16 10:58:32,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:58:32,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:58:32,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:58:32,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:58:32,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:58:32,065 INFO L87 Difference]: Start difference. First operand 69792 states and 319937 transitions. Second operand has 3 states, 2 states have (on average 65.0) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 10:58:33,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:58:33,474 INFO L93 Difference]: Finished difference Result 110565 states and 505703 transitions. [2022-09-16 10:58:33,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:58:33,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 65.0) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2022-09-16 10:58:33,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:58:35,011 INFO L225 Difference]: With dead ends: 110565 [2022-09-16 10:58:35,011 INFO L226 Difference]: Without dead ends: 110565 [2022-09-16 10:58:35,011 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 10:58:35,012 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 87 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:58:35,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 244 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:58:35,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110565 states. [2022-09-16 10:58:38,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110565 to 84204. [2022-09-16 10:58:39,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84204 states, 83664 states have (on average 4.709540543124881) internal successors, (394019), 84203 states have internal predecessors, (394019), 0 states have call successors, (0), 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 10:58:40,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84204 states to 84204 states and 394019 transitions. [2022-09-16 10:58:40,059 INFO L78 Accepts]: Start accepts. Automaton has 84204 states and 394019 transitions. Word has length 130 [2022-09-16 10:58:40,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:58:40,067 INFO L495 AbstractCegarLoop]: Abstraction has 84204 states and 394019 transitions. [2022-09-16 10:58:40,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 65.0) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 10:58:40,067 INFO L276 IsEmpty]: Start isEmpty. Operand 84204 states and 394019 transitions. [2022-09-16 10:58:40,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-09-16 10:58:40,069 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:58:40,069 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:58:40,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:58:40,069 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:58:40,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:58:40,075 INFO L85 PathProgramCache]: Analyzing trace with hash 110017096, now seen corresponding path program 1 times [2022-09-16 10:58:40,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:58:40,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838816648] [2022-09-16 10:58:40,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:40,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:58:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:40,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:40,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:58:40,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838816648] [2022-09-16 10:58:40,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838816648] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:58:40,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154094794] [2022-09-16 10:58:40,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:40,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:58:40,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:58:40,198 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 10:58:40,255 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 10:58:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:40,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:58:40,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:58:40,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:40,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:58:40,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:40,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154094794] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:58:40,735 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:58:40,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-09-16 10:58:40,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250129248] [2022-09-16 10:58:40,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:58:40,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 10:58:40,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:58:40,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 10:58:40,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:58:40,737 INFO L87 Difference]: Start difference. First operand 84204 states and 394019 transitions. Second operand has 7 states, 6 states have (on average 62.666666666666664) internal successors, (376), 7 states have internal predecessors, (376), 0 states have call successors, (0), 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 10:58:45,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:58:45,738 INFO L93 Difference]: Finished difference Result 254502 states and 1185095 transitions. [2022-09-16 10:58:45,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:58:45,738 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 62.666666666666664) internal successors, (376), 7 states have internal predecessors, (376), 0 states have call successors, (0), 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 10:58:45,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:58:49,126 INFO L225 Difference]: With dead ends: 254502 [2022-09-16 10:58:49,126 INFO L226 Difference]: Without dead ends: 254502 [2022-09-16 10:58:49,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:58:49,127 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 554 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:58:49,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 473 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:58:50,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254502 states. [2022-09-16 10:58:57,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254502 to 149058. [2022-09-16 10:58:57,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149058 states, 148518 states have (on average 4.97151187061501) internal successors, (738359), 149057 states have internal predecessors, (738359), 0 states have call successors, (0), 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 10:58:59,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149058 states to 149058 states and 738359 transitions. [2022-09-16 10:58:59,151 INFO L78 Accepts]: Start accepts. Automaton has 149058 states and 738359 transitions. Word has length 133 [2022-09-16 10:58:59,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:58:59,151 INFO L495 AbstractCegarLoop]: Abstraction has 149058 states and 738359 transitions. [2022-09-16 10:58:59,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 62.666666666666664) internal successors, (376), 7 states have internal predecessors, (376), 0 states have call successors, (0), 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 10:58:59,151 INFO L276 IsEmpty]: Start isEmpty. Operand 149058 states and 738359 transitions. [2022-09-16 10:58:59,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-09-16 10:58:59,152 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:58:59,152 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:58:59,176 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 10:58:59,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:58:59,367 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:58:59,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:58:59,368 INFO L85 PathProgramCache]: Analyzing trace with hash 110017097, now seen corresponding path program 1 times [2022-09-16 10:58:59,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:58:59,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429702648] [2022-09-16 10:58:59,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:59,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:58:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:59,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:59,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:58:59,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429702648] [2022-09-16 10:58:59,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429702648] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:58:59,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751961694] [2022-09-16 10:58:59,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:59,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:58:59,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:58:59,411 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 10:58:59,412 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 10:58:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:59,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:58:59,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:58:59,668 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:59,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:58:59,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751961694] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:58:59,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:58:59,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-09-16 10:58:59,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772344506] [2022-09-16 10:58:59,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:58:59,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:58:59,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:58:59,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:58:59,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:58:59,670 INFO L87 Difference]: Start difference. First operand 149058 states and 738359 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 10:59:01,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:59:01,766 INFO L93 Difference]: Finished difference Result 168213 states and 794933 transitions. [2022-09-16 10:59:01,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:59:01,766 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 10:59:01,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:59:03,360 INFO L225 Difference]: With dead ends: 168213 [2022-09-16 10:59:03,360 INFO L226 Difference]: Without dead ends: 168213 [2022-09-16 10:59:03,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 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 10:59:03,361 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 157 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:59:03,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 431 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:59:03,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168213 states. [2022-09-16 10:59:08,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168213 to 141852. [2022-09-16 10:59:08,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141852 states, 141492 states have (on average 4.828887852316739) internal successors, (683249), 141851 states have internal predecessors, (683249), 0 states have call successors, (0), 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 10:59:10,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141852 states to 141852 states and 683249 transitions. [2022-09-16 10:59:10,960 INFO L78 Accepts]: Start accepts. Automaton has 141852 states and 683249 transitions. Word has length 133 [2022-09-16 10:59:10,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:59:10,960 INFO L495 AbstractCegarLoop]: Abstraction has 141852 states and 683249 transitions. [2022-09-16 10:59:10,960 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 10:59:10,960 INFO L276 IsEmpty]: Start isEmpty. Operand 141852 states and 683249 transitions. [2022-09-16 10:59:10,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-09-16 10:59:10,961 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:59:10,961 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, 1, 1] [2022-09-16 10:59:10,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-09-16 10:59:11,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:59:11,177 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:59:11,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:59:11,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1586146470, now seen corresponding path program 1 times [2022-09-16 10:59:11,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:59:11,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488397743] [2022-09-16 10:59:11,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:59:11,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:59:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:59:11,249 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 10:59:11,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:59:11,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488397743] [2022-09-16 10:59:11,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488397743] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:59:11,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:59:11,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:59:11,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348667210] [2022-09-16 10:59:11,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:59:11,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:59:11,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:59:11,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:59:11,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:59:11,251 INFO L87 Difference]: Start difference. First operand 141852 states and 683249 transitions. Second operand has 6 states, 5 states have (on average 27.2) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 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 10:59:14,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:59:14,329 INFO L93 Difference]: Finished difference Result 181254 states and 857846 transitions. [2022-09-16 10:59:14,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:59:14,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.2) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2022-09-16 10:59:14,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:59:16,880 INFO L225 Difference]: With dead ends: 181254 [2022-09-16 10:59:16,881 INFO L226 Difference]: Without dead ends: 179679 [2022-09-16 10:59:16,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:59:16,882 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 490 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:59:16,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 678 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:59:17,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179679 states. [2022-09-16 10:59:22,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179679 to 172191. [2022-09-16 10:59:23,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172191 states, 171804 states have (on average 4.762846033852529) internal successors, (818276), 172190 states have internal predecessors, (818276), 0 states have call successors, (0), 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 10:59:25,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172191 states to 172191 states and 818276 transitions. [2022-09-16 10:59:25,551 INFO L78 Accepts]: Start accepts. Automaton has 172191 states and 818276 transitions. Word has length 136 [2022-09-16 10:59:25,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:59:25,555 INFO L495 AbstractCegarLoop]: Abstraction has 172191 states and 818276 transitions. [2022-09-16 10:59:25,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.2) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 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 10:59:25,555 INFO L276 IsEmpty]: Start isEmpty. Operand 172191 states and 818276 transitions. [2022-09-16 10:59:25,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-09-16 10:59:25,557 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:59:25,558 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:59:25,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 10:59:25,558 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:59:25,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:59:25,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1090486826, now seen corresponding path program 2 times [2022-09-16 10:59:25,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:59:25,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899326407] [2022-09-16 10:59:25,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:59:25,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:59:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:59:25,723 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:59:25,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:59:25,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899326407] [2022-09-16 10:59:25,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899326407] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:59:25,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525398103] [2022-09-16 10:59:25,724 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:59:25,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:59:25,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:59:25,725 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 10:59:25,763 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 10:59:25,935 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 10:59:25,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:59:25,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 11 conjunts are in the unsatisfiable core [2022-09-16 10:59:25,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:59:26,056 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-09-16 10:59:26,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:59:26,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525398103] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:59:26,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:59:26,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-09-16 10:59:26,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885293778] [2022-09-16 10:59:26,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:59:26,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:59:26,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:59:26,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:59:26,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:59:26,057 INFO L87 Difference]: Start difference. First operand 172191 states and 818276 transitions. Second operand has 6 states, 5 states have (on average 26.4) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 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 10:59:29,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:59:29,855 INFO L93 Difference]: Finished difference Result 202937 states and 946209 transitions. [2022-09-16 10:59:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 10:59:29,856 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.4) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 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 142 [2022-09-16 10:59:29,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:59:32,779 INFO L225 Difference]: With dead ends: 202937 [2022-09-16 10:59:32,779 INFO L226 Difference]: Without dead ends: 197426 [2022-09-16 10:59:32,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-09-16 10:59:32,780 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 203 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:59:32,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 661 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:59:33,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197426 states. [2022-09-16 10:59:39,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197426 to 190587. [2022-09-16 10:59:40,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190587 states, 190095 states have (on average 4.724711328546253) internal successors, (898144), 190586 states have internal predecessors, (898144), 0 states have call successors, (0), 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 10:59:42,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190587 states to 190587 states and 898144 transitions. [2022-09-16 10:59:42,480 INFO L78 Accepts]: Start accepts. Automaton has 190587 states and 898144 transitions. Word has length 142 [2022-09-16 10:59:42,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:59:42,495 INFO L495 AbstractCegarLoop]: Abstraction has 190587 states and 898144 transitions. [2022-09-16 10:59:42,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.4) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 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 10:59:42,495 INFO L276 IsEmpty]: Start isEmpty. Operand 190587 states and 898144 transitions. [2022-09-16 10:59:42,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-09-16 10:59:42,497 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:59:42,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:59:42,518 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 10:59:42,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:59:42,711 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:59:42,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:59:42,712 INFO L85 PathProgramCache]: Analyzing trace with hash 75230847, now seen corresponding path program 1 times [2022-09-16 10:59:42,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:59:42,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714327263] [2022-09-16 10:59:42,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:59:42,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:59:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:59:43,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:59:43,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:59:43,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714327263] [2022-09-16 10:59:43,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714327263] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:59:43,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:59:43,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:59:43,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812041993] [2022-09-16 10:59:43,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:59:43,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:59:43,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:59:43,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:59:43,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:59:43,149 INFO L87 Difference]: Start difference. First operand 190587 states and 898144 transitions. Second operand has 5 states, 4 states have (on average 36.25) internal successors, (145), 5 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:46,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:59:46,460 INFO L93 Difference]: Finished difference Result 177189 states and 834136 transitions. [2022-09-16 10:59:46,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:59:46,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 36.25) internal successors, (145), 5 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2022-09-16 10:59:46,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:59:48,425 INFO L225 Difference]: With dead ends: 177189 [2022-09-16 10:59:48,426 INFO L226 Difference]: Without dead ends: 177189 [2022-09-16 10:59:48,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:59:48,426 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 284 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:59:48,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 394 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:59:48,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177189 states. [2022-09-16 10:59:55,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177189 to 177189. [2022-09-16 10:59:56,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177189 states, 176775 states have (on average 4.71863102814312) internal successors, (834136), 177188 states have internal predecessors, (834136), 0 states have call successors, (0), 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 10:59:58,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177189 states to 177189 states and 834136 transitions. [2022-09-16 10:59:58,746 INFO L78 Accepts]: Start accepts. Automaton has 177189 states and 834136 transitions. Word has length 145 [2022-09-16 10:59:58,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:59:58,746 INFO L495 AbstractCegarLoop]: Abstraction has 177189 states and 834136 transitions. [2022-09-16 10:59:58,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 36.25) internal successors, (145), 5 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:59:58,746 INFO L276 IsEmpty]: Start isEmpty. Operand 177189 states and 834136 transitions. [2022-09-16 10:59:58,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-09-16 10:59:58,747 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:59:58,747 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:59:58,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-09-16 10:59:58,748 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 10:59:58,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:59:58,748 INFO L85 PathProgramCache]: Analyzing trace with hash 75230848, now seen corresponding path program 1 times [2022-09-16 10:59:58,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:59:58,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576186642] [2022-09-16 10:59:58,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:59:58,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:59:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:59:58,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:59:58,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:59:58,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576186642] [2022-09-16 10:59:58,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576186642] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:59:58,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:59:58,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:59:58,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136238134] [2022-09-16 10:59:58,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:59:58,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:59:58,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:59:58,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:59:58,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:59:58,784 INFO L87 Difference]: Start difference. First operand 177189 states and 834136 transitions. Second operand has 4 states, 3 states have (on average 48.333333333333336) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:00,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:00:00,862 INFO L93 Difference]: Finished difference Result 163791 states and 770128 transitions. [2022-09-16 11:00:00,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:00:00,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 48.333333333333336) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2022-09-16 11:00:00,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:00:02,536 INFO L225 Difference]: With dead ends: 163791 [2022-09-16 11:00:02,536 INFO L226 Difference]: Without dead ends: 163791 [2022-09-16 11:00:02,536 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 11:00:02,537 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 90 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:00:02,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 390 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:00:03,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163791 states. [2022-09-16 11:00:08,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163791 to 163791. [2022-09-16 11:00:09,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163791 states, 163455 states have (on average 4.711559756507907) internal successors, (770128), 163790 states have internal predecessors, (770128), 0 states have call successors, (0), 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 11:00:11,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163791 states to 163791 states and 770128 transitions. [2022-09-16 11:00:11,560 INFO L78 Accepts]: Start accepts. Automaton has 163791 states and 770128 transitions. Word has length 145 [2022-09-16 11:00:11,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:00:11,560 INFO L495 AbstractCegarLoop]: Abstraction has 163791 states and 770128 transitions. [2022-09-16 11:00:11,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 48.333333333333336) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:11,561 INFO L276 IsEmpty]: Start isEmpty. Operand 163791 states and 770128 transitions. [2022-09-16 11:00:11,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-09-16 11:00:11,562 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:00:11,562 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:00:11,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-16 11:00:11,562 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 11:00:11,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:00:11,563 INFO L85 PathProgramCache]: Analyzing trace with hash 75230849, now seen corresponding path program 1 times [2022-09-16 11:00:11,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:00:11,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113285476] [2022-09-16 11:00:11,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:00:11,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:00:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:00:11,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:00:11,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:00:11,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113285476] [2022-09-16 11:00:11,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113285476] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:00:11,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810851505] [2022-09-16 11:00:11,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:00:11,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:00:11,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:00:11,719 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 11:00:11,720 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 11:00:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:00:11,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-16 11:00:11,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:00:12,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:00:12,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:00:12,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810851505] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:00:12,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:00:12,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2022-09-16 11:00:12,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450971376] [2022-09-16 11:00:12,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:00:12,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:00:12,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:00:12,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:00:12,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-09-16 11:00:12,042 INFO L87 Difference]: Start difference. First operand 163791 states and 770128 transitions. Second operand has 4 states, 3 states have (on average 48.333333333333336) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:14,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:00:14,513 INFO L93 Difference]: Finished difference Result 141474 states and 662752 transitions. [2022-09-16 11:00:14,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:00:14,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 48.333333333333336) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2022-09-16 11:00:14,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:00:15,999 INFO L225 Difference]: With dead ends: 141474 [2022-09-16 11:00:15,999 INFO L226 Difference]: Without dead ends: 141474 [2022-09-16 11:00:15,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:00:16,000 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 104 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:00:16,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 400 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:00:16,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141474 states. [2022-09-16 11:00:20,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141474 to 141474. [2022-09-16 11:00:20,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141474 states, 141255 states have (on average 4.6918834731513925) internal successors, (662752), 141473 states have internal predecessors, (662752), 0 states have call successors, (0), 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 11:00:22,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141474 states to 141474 states and 662752 transitions. [2022-09-16 11:00:22,496 INFO L78 Accepts]: Start accepts. Automaton has 141474 states and 662752 transitions. Word has length 145 [2022-09-16 11:00:22,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:00:22,497 INFO L495 AbstractCegarLoop]: Abstraction has 141474 states and 662752 transitions. [2022-09-16 11:00:22,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 48.333333333333336) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:22,497 INFO L276 IsEmpty]: Start isEmpty. Operand 141474 states and 662752 transitions. [2022-09-16 11:00:22,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-09-16 11:00:22,503 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:00:22,503 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:00:22,520 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 11:00:22,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:00:22,720 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 11:00:22,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:00:22,720 INFO L85 PathProgramCache]: Analyzing trace with hash 75230851, now seen corresponding path program 1 times [2022-09-16 11:00:22,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:00:22,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590153800] [2022-09-16 11:00:22,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:00:22,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:00:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:00:22,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:00:22,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:00:22,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590153800] [2022-09-16 11:00:22,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590153800] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:00:22,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:00:22,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:00:22,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789853276] [2022-09-16 11:00:22,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:00:22,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:00:22,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:00:22,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:00:22,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:00:22,774 INFO L87 Difference]: Start difference. First operand 141474 states and 662752 transitions. Second operand has 3 states, 2 states have (on average 72.5) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:25,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:00:25,989 INFO L93 Difference]: Finished difference Result 202508 states and 953024 transitions. [2022-09-16 11:00:25,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:00:25,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 72.5) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2022-09-16 11:00:25,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:00:29,176 INFO L225 Difference]: With dead ends: 202508 [2022-09-16 11:00:29,176 INFO L226 Difference]: Without dead ends: 202508 [2022-09-16 11:00:29,176 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 11:00:29,177 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 67 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:00:29,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 240 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:00:30,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202508 states. [2022-09-16 11:00:36,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202508 to 166298. [2022-09-16 11:00:37,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166298 states, 166079 states have (on average 4.7753538978437975) internal successors, (793086), 166297 states have internal predecessors, (793086), 0 states have call successors, (0), 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 11:00:39,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166298 states to 166298 states and 793086 transitions. [2022-09-16 11:00:39,310 INFO L78 Accepts]: Start accepts. Automaton has 166298 states and 793086 transitions. Word has length 145 [2022-09-16 11:00:39,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:00:39,310 INFO L495 AbstractCegarLoop]: Abstraction has 166298 states and 793086 transitions. [2022-09-16 11:00:39,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 72.5) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:00:39,310 INFO L276 IsEmpty]: Start isEmpty. Operand 166298 states and 793086 transitions. [2022-09-16 11:00:39,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-09-16 11:00:39,312 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:00:39,312 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:00:39,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-09-16 11:00:39,312 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 11:00:39,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:00:39,313 INFO L85 PathProgramCache]: Analyzing trace with hash -769445153, now seen corresponding path program 1 times [2022-09-16 11:00:39,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:00:39,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228870346] [2022-09-16 11:00:39,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:00:39,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:00:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:00:39,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:00:39,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:00:39,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228870346] [2022-09-16 11:00:39,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228870346] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:00:39,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024274455] [2022-09-16 11:00:39,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:00:39,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:00:39,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:00:39,427 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:00:39,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-16 11:00:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:00:39,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 11:00:39,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:00:39,855 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:00:39,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:00:40,454 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:00:40,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024274455] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:00:40,455 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:00:40,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-09-16 11:00:40,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781156858] [2022-09-16 11:00:40,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:00:40,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 11:00:40,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:00:40,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 11:00:40,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-09-16 11:00:40,457 INFO L87 Difference]: Start difference. First operand 166298 states and 793086 transitions. Second operand has 7 states, 6 states have (on average 69.83333333333333) internal successors, (419), 7 states have internal predecessors, (419), 0 states have call successors, (0), 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 11:00:49,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:00:49,496 INFO L93 Difference]: Finished difference Result 422846 states and 2038688 transitions. [2022-09-16 11:00:49,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:00:49,497 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 69.83333333333333) internal successors, (419), 7 states have internal predecessors, (419), 0 states have call successors, (0), 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 148 [2022-09-16 11:00:49,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:00:56,787 INFO L225 Difference]: With dead ends: 422846 [2022-09-16 11:00:56,787 INFO L226 Difference]: Without dead ends: 422846 [2022-09-16 11:00:56,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-09-16 11:00:56,788 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 420 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 11:00:56,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 459 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 11:00:58,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422846 states. [2022-09-16 11:01:11,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422846 to 278006. [2022-09-16 11:01:11,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278006 states, 277787 states have (on average 5.036002404720163) internal successors, (1398936), 278005 states have internal predecessors, (1398936), 0 states have call successors, (0), 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 11:01:16,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278006 states to 278006 states and 1398936 transitions. [2022-09-16 11:01:16,308 INFO L78 Accepts]: Start accepts. Automaton has 278006 states and 1398936 transitions. Word has length 148 [2022-09-16 11:01:16,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:01:16,308 INFO L495 AbstractCegarLoop]: Abstraction has 278006 states and 1398936 transitions. [2022-09-16 11:01:16,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 69.83333333333333) internal successors, (419), 7 states have internal predecessors, (419), 0 states have call successors, (0), 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 11:01:16,309 INFO L276 IsEmpty]: Start isEmpty. Operand 278006 states and 1398936 transitions. [2022-09-16 11:01:16,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-09-16 11:01:16,318 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:01:16,318 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:01:16,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-09-16 11:01:16,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-09-16 11:01:16,531 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2022-09-16 11:01:16,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:01:16,532 INFO L85 PathProgramCache]: Analyzing trace with hash -769445152, now seen corresponding path program 1 times [2022-09-16 11:01:16,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:01:16,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141550379] [2022-09-16 11:01:16,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:01:16,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:01:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:01:16,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:01:16,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:01:16,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141550379] [2022-09-16 11:01:16,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141550379] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:01:16,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529101582] [2022-09-16 11:01:16,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:01:16,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:01:16,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:01:16,623 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:01:16,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-09-16 11:01:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:01:16,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 11:01:16,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:01:17,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:01:17,076 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:01:17,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529101582] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:01:17,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:01:17,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-09-16 11:01:17,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339840688] [2022-09-16 11:01:17,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:01:17,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:01:17,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:01:17,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:01:17,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:01:17,079 INFO L87 Difference]: Start difference. First operand 278006 states and 1398936 transitions. Second operand has 4 states, 3 states have (on average 49.333333333333336) internal successors, (148), 4 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 11:01:23,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:01:23,311 INFO L93 Difference]: Finished difference Result 301804 states and 1462434 transitions. [2022-09-16 11:01:23,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:01:23,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 49.333333333333336) internal successors, (148), 4 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 148 [2022-09-16 11:01:23,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:01:28,218 INFO L225 Difference]: With dead ends: 301804 [2022-09-16 11:01:28,221 INFO L226 Difference]: Without dead ends: 301804 [2022-09-16 11:01:28,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 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 11:01:28,221 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 127 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:01:28,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 416 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:01:29,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301804 states.