/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/pthread-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:18:12,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:18:12,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:18:12,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:18:12,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:18:12,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:18:12,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:18:12,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:18:12,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:18:12,546 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:18:12,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:18:12,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:18:12,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:18:12,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:18:12,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:18:12,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:18:12,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:18:12,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:18:12,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:18:12,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:18:12,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:18:12,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:18:12,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:18:12,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:18:12,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:18:12,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:18:12,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:18:12,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:18:12,565 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:18:12,566 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:18:12,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:18:12,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:18:12,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:18:12,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:18:12,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:18:12,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:18:12,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:18:12,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:18:12,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:18:12,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:18:12,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:18:12,577 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 10:18:12,608 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:18:12,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:18:12,609 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:18:12,609 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:18:12,610 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:18:12,610 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:18:12,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:18:12,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:18:12,610 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:18:12,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:18:12,611 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:18:12,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:18:12,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:18:12,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:18:12,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:18:12,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:18:12,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:18:12,612 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:18:12,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:18:12,612 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:18:12,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:18:12,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:18:12,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:18:12,613 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:18:12,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:18:12,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:18:12,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:18:12,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:18:12,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:18:12,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:18:12,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:18:12,614 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:18:12,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:18:12,614 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:18:12,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:18:12,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:18:12,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:18:12,871 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:18:12,872 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:18:12,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2022-09-16 10:18:12,918 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ce15166/cd11f0bc30014d9db31922474177311f/FLAGd9c9e791f [2022-09-16 10:18:13,378 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:18:13,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2022-09-16 10:18:13,388 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ce15166/cd11f0bc30014d9db31922474177311f/FLAGd9c9e791f [2022-09-16 10:18:13,398 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ce15166/cd11f0bc30014d9db31922474177311f [2022-09-16 10:18:13,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:18:13,401 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:18:13,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:18:13,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:18:13,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:18:13,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:18:13" (1/1) ... [2022-09-16 10:18:13,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18b1067c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:18:13, skipping insertion in model container [2022-09-16 10:18:13,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:18:13" (1/1) ... [2022-09-16 10:18:13,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:18:13,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:18:13,629 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-09-16 10:18:13,750 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i[31246,31259] [2022-09-16 10:18:13,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:18:13,773 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:18:13,800 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-09-16 10:18:13,825 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i[31246,31259] [2022-09-16 10:18:13,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:18:13,859 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:18:13,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:18:13 WrapperNode [2022-09-16 10:18:13,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:18:13,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:18:13,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:18:13,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:18:13,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:18:13" (1/1) ... [2022-09-16 10:18:13,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:18:13" (1/1) ... [2022-09-16 10:18:13,938 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 118 [2022-09-16 10:18:13,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:18:13,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:18:13,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:18:13,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:18:13,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:18:13" (1/1) ... [2022-09-16 10:18:13,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:18:13" (1/1) ... [2022-09-16 10:18:13,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:18:13" (1/1) ... [2022-09-16 10:18:13,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:18:13" (1/1) ... [2022-09-16 10:18:13,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:18:13" (1/1) ... [2022-09-16 10:18:13,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:18:13" (1/1) ... [2022-09-16 10:18:13,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:18:13" (1/1) ... [2022-09-16 10:18:13,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:18:13,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:18:13,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:18:13,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:18:14,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:18:13" (1/1) ... [2022-09-16 10:18:14,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:18:14,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:18:14,034 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 10:18:14,058 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 10:18:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:18:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:18:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:18:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:18:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2022-09-16 10:18:14,075 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2022-09-16 10:18:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:18:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:18:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:18:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:18:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:18:14,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:18:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2022-09-16 10:18:14,075 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2022-09-16 10:18:14,077 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 10:18:14,247 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:18:14,248 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:18:14,415 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:18:14,456 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:18:14,456 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 10:18:14,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:18:14 BoogieIcfgContainer [2022-09-16 10:18:14,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:18:14,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:18:14,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:18:14,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:18:14,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:18:13" (1/3) ... [2022-09-16 10:18:14,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47ccefa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:18:14, skipping insertion in model container [2022-09-16 10:18:14,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:18:13" (2/3) ... [2022-09-16 10:18:14,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47ccefa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:18:14, skipping insertion in model container [2022-09-16 10:18:14,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:18:14" (3/3) ... [2022-09-16 10:18:14,467 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2022-09-16 10:18:14,473 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:18:14,481 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:18:14,481 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-09-16 10:18:14,481 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:18:14,544 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-09-16 10:18:14,569 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 129 places, 118 transitions, 268 flow [2022-09-16 10:18:16,880 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 66874 states, 66850 states have (on average 4.327748691099476) internal successors, (289310), 66873 states have internal predecessors, (289310), 0 states have call successors, (0), 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 10:18:16,895 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:18:16,901 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;@294f606c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:18:16,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-09-16 10:18:17,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 66874 states, 66850 states have (on average 4.327748691099476) internal successors, (289310), 66873 states have internal predecessors, (289310), 0 states have call successors, (0), 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 10:18:17,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-09-16 10:18:17,017 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:18:17,018 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] [2022-09-16 10:18:17,018 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:18:17,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:18:17,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1648259656, now seen corresponding path program 1 times [2022-09-16 10:18:17,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:18:17,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047369926] [2022-09-16 10:18:17,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:18:17,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:18:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:18:17,432 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 10:18:17,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:18:17,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047369926] [2022-09-16 10:18:17,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047369926] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:18:17,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:18:17,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:18:17,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323979754] [2022-09-16 10:18:17,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:18:17,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:18:17,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:18:17,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:18:17,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:18:17,616 INFO L87 Difference]: Start difference. First operand has 66874 states, 66850 states have (on average 4.327748691099476) internal successors, (289310), 66873 states have internal predecessors, (289310), 0 states have call successors, (0), 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 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 10:18:19,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:18:19,482 INFO L93 Difference]: Finished difference Result 117921 states and 470966 transitions. [2022-09-16 10:18:19,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:18:19,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-09-16 10:18:19,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:18:20,692 INFO L225 Difference]: With dead ends: 117921 [2022-09-16 10:18:20,693 INFO L226 Difference]: Without dead ends: 105155 [2022-09-16 10:18:20,694 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 10:18:20,697 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 54 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:18:20,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 155 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:18:21,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105155 states. [2022-09-16 10:18:24,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105155 to 96215. [2022-09-16 10:18:25,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96215 states, 96187 states have (on average 4.076683959370809) internal successors, (392124), 96214 states have internal predecessors, (392124), 0 states have call successors, (0), 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 10:18:26,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96215 states to 96215 states and 392124 transitions. [2022-09-16 10:18:26,099 INFO L78 Accepts]: Start accepts. Automaton has 96215 states and 392124 transitions. Word has length 33 [2022-09-16 10:18:26,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:18:26,100 INFO L495 AbstractCegarLoop]: Abstraction has 96215 states and 392124 transitions. [2022-09-16 10:18:26,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 10:18:26,100 INFO L276 IsEmpty]: Start isEmpty. Operand 96215 states and 392124 transitions. [2022-09-16 10:18:26,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-09-16 10:18:26,114 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:18:26,114 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] [2022-09-16 10:18:26,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:18:26,115 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:18:26,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:18:26,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1263268001, now seen corresponding path program 1 times [2022-09-16 10:18:26,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:18:26,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288934719] [2022-09-16 10:18:26,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:18:26,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:18:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:18:26,224 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 10:18:26,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:18:26,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288934719] [2022-09-16 10:18:26,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288934719] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:18:26,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:18:26,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:18:26,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454432893] [2022-09-16 10:18:26,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:18:26,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:18:26,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:18:26,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:18:26,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:18:26,229 INFO L87 Difference]: Start difference. First operand 96215 states and 392124 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 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 10:18:27,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:18:27,158 INFO L93 Difference]: Finished difference Result 71062 states and 272515 transitions. [2022-09-16 10:18:27,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:18:27,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-09-16 10:18:27,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:18:27,717 INFO L225 Difference]: With dead ends: 71062 [2022-09-16 10:18:27,717 INFO L226 Difference]: Without dead ends: 71062 [2022-09-16 10:18:27,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:18:27,719 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 95 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:18:27,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 266 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:18:28,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71062 states. [2022-09-16 10:18:30,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71062 to 64726. [2022-09-16 10:18:30,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64726 states, 64678 states have (on average 3.9199573270663906) internal successors, (253535), 64725 states have internal predecessors, (253535), 0 states have call successors, (0), 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 10:18:30,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64726 states to 64726 states and 253535 transitions. [2022-09-16 10:18:30,806 INFO L78 Accepts]: Start accepts. Automaton has 64726 states and 253535 transitions. Word has length 39 [2022-09-16 10:18:30,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:18:30,808 INFO L495 AbstractCegarLoop]: Abstraction has 64726 states and 253535 transitions. [2022-09-16 10:18:30,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 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 10:18:30,811 INFO L276 IsEmpty]: Start isEmpty. Operand 64726 states and 253535 transitions. [2022-09-16 10:18:30,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-09-16 10:18:30,815 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:18:30,816 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] [2022-09-16 10:18:30,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:18:30,816 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:18:30,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:18:30,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1263268002, now seen corresponding path program 1 times [2022-09-16 10:18:30,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:18:30,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429683111] [2022-09-16 10:18:30,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:18:30,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:18:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:18:30,925 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 10:18:30,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:18:30,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429683111] [2022-09-16 10:18:30,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429683111] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:18:30,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:18:30,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:18:30,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742077912] [2022-09-16 10:18:30,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:18:30,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:18:30,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:18:30,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:18:30,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:18:30,928 INFO L87 Difference]: Start difference. First operand 64726 states and 253535 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 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 10:18:31,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:18:31,739 INFO L93 Difference]: Finished difference Result 61362 states and 235600 transitions. [2022-09-16 10:18:31,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:18:31,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-09-16 10:18:31,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:18:32,037 INFO L225 Difference]: With dead ends: 61362 [2022-09-16 10:18:32,037 INFO L226 Difference]: Without dead ends: 49392 [2022-09-16 10:18:32,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:18:32,039 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 152 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:18:32,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 176 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:18:32,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49392 states. [2022-09-16 10:18:33,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49392 to 45702. [2022-09-16 10:18:33,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45702 states, 45678 states have (on average 3.907285783090328) internal successors, (178477), 45701 states have internal predecessors, (178477), 0 states have call successors, (0), 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 10:18:33,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45702 states to 45702 states and 178477 transitions. [2022-09-16 10:18:33,710 INFO L78 Accepts]: Start accepts. Automaton has 45702 states and 178477 transitions. Word has length 39 [2022-09-16 10:18:33,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:18:33,711 INFO L495 AbstractCegarLoop]: Abstraction has 45702 states and 178477 transitions. [2022-09-16 10:18:33,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 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 10:18:33,711 INFO L276 IsEmpty]: Start isEmpty. Operand 45702 states and 178477 transitions. [2022-09-16 10:18:33,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-09-16 10:18:33,739 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:18:33,740 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] [2022-09-16 10:18:33,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 10:18:33,740 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:18:33,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:18:33,741 INFO L85 PathProgramCache]: Analyzing trace with hash -543916280, now seen corresponding path program 1 times [2022-09-16 10:18:33,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:18:33,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201485565] [2022-09-16 10:18:33,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:18:33,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:18:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:18:33,812 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 10:18:33,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:18:33,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201485565] [2022-09-16 10:18:33,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201485565] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:18:33,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:18:33,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:18:33,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026787089] [2022-09-16 10:18:33,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:18:33,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:18:33,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:18:33,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:18:33,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:18:33,817 INFO L87 Difference]: Start difference. First operand 45702 states and 178477 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 10:18:34,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:18:34,451 INFO L93 Difference]: Finished difference Result 40503 states and 158031 transitions. [2022-09-16 10:18:34,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:18:34,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-09-16 10:18:34,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:18:34,701 INFO L225 Difference]: With dead ends: 40503 [2022-09-16 10:18:34,701 INFO L226 Difference]: Without dead ends: 36261 [2022-09-16 10:18:34,702 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 10:18:34,703 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 79 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:18:34,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 86 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:18:34,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36261 states. [2022-09-16 10:18:35,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36261 to 36261. [2022-09-16 10:18:35,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36261 states, 36257 states have (on average 3.894337645144386) internal successors, (141197), 36260 states have internal predecessors, (141197), 0 states have call successors, (0), 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 10:18:36,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36261 states to 36261 states and 141197 transitions. [2022-09-16 10:18:36,126 INFO L78 Accepts]: Start accepts. Automaton has 36261 states and 141197 transitions. Word has length 54 [2022-09-16 10:18:36,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:18:36,128 INFO L495 AbstractCegarLoop]: Abstraction has 36261 states and 141197 transitions. [2022-09-16 10:18:36,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 10:18:36,128 INFO L276 IsEmpty]: Start isEmpty. Operand 36261 states and 141197 transitions. [2022-09-16 10:18:36,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-09-16 10:18:36,170 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:18:36,170 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] [2022-09-16 10:18:36,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 10:18:36,171 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:18:36,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:18:36,171 INFO L85 PathProgramCache]: Analyzing trace with hash -543894079, now seen corresponding path program 1 times [2022-09-16 10:18:36,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:18:36,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497335508] [2022-09-16 10:18:36,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:18:36,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:18:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:18:36,209 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 10:18:36,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:18:36,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497335508] [2022-09-16 10:18:36,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497335508] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:18:36,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:18:36,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:18:36,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384908795] [2022-09-16 10:18:36,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:18:36,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:18:36,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:18:36,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:18:36,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:18:36,212 INFO L87 Difference]: Start difference. First operand 36261 states and 141197 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 10:18:36,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:18:36,553 INFO L93 Difference]: Finished difference Result 34935 states and 135829 transitions. [2022-09-16 10:18:36,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:18:36,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-09-16 10:18:36,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:18:36,668 INFO L225 Difference]: With dead ends: 34935 [2022-09-16 10:18:36,669 INFO L226 Difference]: Without dead ends: 34935 [2022-09-16 10:18:36,669 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 10:18:36,670 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 76 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:18:36,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 84 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:18:36,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34935 states. [2022-09-16 10:18:37,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34935 to 34935. [2022-09-16 10:18:37,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34935 states, 34933 states have (on average 3.888271834654911) internal successors, (135829), 34934 states have internal predecessors, (135829), 0 states have call successors, (0), 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 10:18:38,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34935 states to 34935 states and 135829 transitions. [2022-09-16 10:18:38,084 INFO L78 Accepts]: Start accepts. Automaton has 34935 states and 135829 transitions. Word has length 54 [2022-09-16 10:18:38,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:18:38,085 INFO L495 AbstractCegarLoop]: Abstraction has 34935 states and 135829 transitions. [2022-09-16 10:18:38,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 10:18:38,085 INFO L276 IsEmpty]: Start isEmpty. Operand 34935 states and 135829 transitions. [2022-09-16 10:18:38,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-09-16 10:18:38,131 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:18:38,131 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] [2022-09-16 10:18:38,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:18:38,132 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:18:38,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:18:38,132 INFO L85 PathProgramCache]: Analyzing trace with hash -461862961, now seen corresponding path program 1 times [2022-09-16 10:18:38,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:18:38,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335819783] [2022-09-16 10:18:38,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:18:38,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:18:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:18:38,217 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 10:18:38,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:18:38,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335819783] [2022-09-16 10:18:38,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335819783] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:18:38,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:18:38,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:18:38,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730730085] [2022-09-16 10:18:38,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:18:38,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:18:38,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:18:38,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:18:38,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:18:38,219 INFO L87 Difference]: Start difference. First operand 34935 states and 135829 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 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 10:18:38,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:18:38,841 INFO L93 Difference]: Finished difference Result 44121 states and 168283 transitions. [2022-09-16 10:18:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:18:38,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2022-09-16 10:18:38,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:18:38,962 INFO L225 Difference]: With dead ends: 44121 [2022-09-16 10:18:38,962 INFO L226 Difference]: Without dead ends: 28353 [2022-09-16 10:18:38,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:18:38,963 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 96 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:18:38,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 363 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:18:39,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28353 states. [2022-09-16 10:18:39,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28353 to 27123. [2022-09-16 10:18:39,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27123 states, 27121 states have (on average 3.721581062645183) internal successors, (100933), 27122 states have internal predecessors, (100933), 0 states have call successors, (0), 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 10:18:39,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27123 states to 27123 states and 100933 transitions. [2022-09-16 10:18:39,761 INFO L78 Accepts]: Start accepts. Automaton has 27123 states and 100933 transitions. Word has length 60 [2022-09-16 10:18:39,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:18:39,761 INFO L495 AbstractCegarLoop]: Abstraction has 27123 states and 100933 transitions. [2022-09-16 10:18:39,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 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 10:18:39,762 INFO L276 IsEmpty]: Start isEmpty. Operand 27123 states and 100933 transitions. [2022-09-16 10:18:39,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-09-16 10:18:39,796 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:18:39,796 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] [2022-09-16 10:18:39,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:18:39,797 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-09-16 10:18:39,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:18:39,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1445544711, now seen corresponding path program 1 times [2022-09-16 10:18:39,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:18:39,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132881427] [2022-09-16 10:18:39,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:18:39,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:18:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:18:39,852 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 10:18:39,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:18:39,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132881427] [2022-09-16 10:18:39,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132881427] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:18:39,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:18:39,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:18:39,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673243036] [2022-09-16 10:18:39,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:18:39,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:18:39,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:18:39,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:18:39,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:18:39,854 INFO L87 Difference]: Start difference. First operand 27123 states and 100933 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 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 10:18:40,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:18:40,054 INFO L93 Difference]: Finished difference Result 25797 states and 95565 transitions. [2022-09-16 10:18:40,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:18:40,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2022-09-16 10:18:40,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:18:40,056 INFO L225 Difference]: With dead ends: 25797 [2022-09-16 10:18:40,056 INFO L226 Difference]: Without dead ends: 0 [2022-09-16 10:18:40,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:18:40,057 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 198 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:18:40,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 231 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:18:40,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-09-16 10:18:40,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-09-16 10:18:40,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:18:40,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-09-16 10:18:40,058 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2022-09-16 10:18:40,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:18:40,058 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-16 10:18:40,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 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 10:18:40,058 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-09-16 10:18:40,058 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-09-16 10:18:40,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2022-09-16 10:18:40,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2022-09-16 10:18:40,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2022-09-16 10:18:40,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2022-09-16 10:18:40,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 16 remaining) [2022-09-16 10:18:40,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 16 remaining) [2022-09-16 10:18:40,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 16 remaining) [2022-09-16 10:18:40,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2022-09-16 10:18:40,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2022-09-16 10:18:40,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2022-09-16 10:18:40,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2022-09-16 10:18:40,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2022-09-16 10:18:40,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2022-09-16 10:18:40,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2022-09-16 10:18:40,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2022-09-16 10:18:40,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2022-09-16 10:18:40,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 10:18:40,066 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:18:40,070 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 10:18:40,070 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 10:18:40,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 10:18:40 BasicIcfg [2022-09-16 10:18:40,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 10:18:40,073 INFO L158 Benchmark]: Toolchain (without parser) took 26671.99ms. Allocated memory was 185.6MB in the beginning and 7.5GB in the end (delta: 7.3GB). Free memory was 161.5MB in the beginning and 4.8GB in the end (delta: -4.6GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. [2022-09-16 10:18:40,073 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 185.6MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 10:18:40,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.21ms. Allocated memory was 185.6MB in the beginning and 223.3MB in the end (delta: 37.7MB). Free memory was 161.2MB in the beginning and 188.4MB in the end (delta: -27.2MB). Peak memory consumption was 13.8MB. Max. memory is 8.0GB. [2022-09-16 10:18:40,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.53ms. Allocated memory is still 223.3MB. Free memory was 188.4MB in the beginning and 185.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 10:18:40,074 INFO L158 Benchmark]: Boogie Preprocessor took 48.58ms. Allocated memory is still 223.3MB. Free memory was 185.9MB in the beginning and 184.7MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 10:18:40,075 INFO L158 Benchmark]: RCFGBuilder took 469.65ms. Allocated memory is still 223.3MB. Free memory was 184.7MB in the beginning and 167.2MB in the end (delta: 17.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-09-16 10:18:40,075 INFO L158 Benchmark]: TraceAbstraction took 25612.49ms. Allocated memory was 223.3MB in the beginning and 7.5GB in the end (delta: 7.2GB). Free memory was 166.5MB in the beginning and 4.8GB in the end (delta: -4.6GB). Peak memory consumption was 2.6GB. Max. memory is 8.0GB. [2022-09-16 10:18:40,076 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 185.6MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 458.21ms. Allocated memory was 185.6MB in the beginning and 223.3MB in the end (delta: 37.7MB). Free memory was 161.2MB in the beginning and 188.4MB in the end (delta: -27.2MB). Peak memory consumption was 13.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 77.53ms. Allocated memory is still 223.3MB. Free memory was 188.4MB in the beginning and 185.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.58ms. Allocated memory is still 223.3MB. Free memory was 185.9MB in the beginning and 184.7MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 469.65ms. Allocated memory is still 223.3MB. Free memory was 184.7MB in the beginning and 167.2MB in the end (delta: 17.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 25612.49ms. Allocated memory was 223.3MB in the beginning and 7.5GB in the end (delta: 7.2GB). Free memory was 166.5MB in the beginning and 4.8GB in the end (delta: -4.6GB). Peak memory consumption was 2.6GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 711]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 711]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 714]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 714]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 145 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 25.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 750 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 750 mSDsluCounter, 1361 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 716 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 300 IncrementalHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 709 mSDtfsCounter, 300 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96215occurred in iteration=1, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 13.8s AutomataMinimizationTime, 7 MinimizatonAttempts, 20196 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 339 NumberOfCodeBlocks, 339 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 332 ConstructedInterpolants, 0 QuantifiedInterpolants, 702 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 10:18:40,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...