/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-more-array-sum2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:05:30,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:05:30,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:05:30,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:05:30,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:05:30,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:05:30,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:05:30,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:05:30,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:05:30,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:05:30,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:05:30,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:05:30,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:05:30,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:05:30,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:05:30,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:05:30,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:05:30,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:05:30,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:05:30,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:05:30,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:05:30,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:05:30,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:05:30,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:05:30,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:05:30,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:05:30,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:05:30,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:05:30,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:05:30,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:05:30,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:05:30,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:05:30,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:05:30,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:05:30,671 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:05:30,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:05:30,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:05:30,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:05:30,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:05:30,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:05:30,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:05:30,675 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 11:05:30,709 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:05:30,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:05:30,709 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 11:05:30,709 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 11:05:30,710 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:05:30,710 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:05:30,711 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:05:30,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:05:30,714 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:05:30,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:05:30,715 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:05:30,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:05:30,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:05:30,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:05:30,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:05:30,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:05:30,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:05:30,716 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:05:30,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:05:30,716 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:05:30,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:05:30,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:05:30,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:05:30,717 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:05:30,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:05:30,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:05:30,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:05:30,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:05:30,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:05:30,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:05:30,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:05:30,719 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:05:30,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 11:05:30,719 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:05:30,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:05:30,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:05:30,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:05:30,953 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:05:30,954 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:05:30,955 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-array-sum2.wvr.c [2022-09-16 11:05:31,015 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf0478f79/accd11ac6856458e87c17dee01a78465/FLAG920663393 [2022-09-16 11:05:31,496 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:05:31,496 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum2.wvr.c [2022-09-16 11:05:31,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf0478f79/accd11ac6856458e87c17dee01a78465/FLAG920663393 [2022-09-16 11:05:31,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf0478f79/accd11ac6856458e87c17dee01a78465 [2022-09-16 11:05:31,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:05:31,872 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:05:31,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:05:31,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:05:31,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:05:31,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:05:31" (1/1) ... [2022-09-16 11:05:31,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b772bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:05:31, skipping insertion in model container [2022-09-16 11:05:31,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:05:31" (1/1) ... [2022-09-16 11:05:31,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:05:31,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:05:32,086 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-more-array-sum2.wvr.c[2599,2612] [2022-09-16 11:05:32,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:05:32,109 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:05:32,127 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-more-array-sum2.wvr.c[2599,2612] [2022-09-16 11:05:32,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:05:32,142 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:05:32,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:05:32 WrapperNode [2022-09-16 11:05:32,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:05:32,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:05:32,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:05:32,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:05:32,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:05:32" (1/1) ... [2022-09-16 11:05:32,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:05:32" (1/1) ... [2022-09-16 11:05:32,208 INFO L138 Inliner]: procedures = 25, calls = 52, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 365 [2022-09-16 11:05:32,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:05:32,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:05:32,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:05:32,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:05:32,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:05:32" (1/1) ... [2022-09-16 11:05:32,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:05:32" (1/1) ... [2022-09-16 11:05:32,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:05:32" (1/1) ... [2022-09-16 11:05:32,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:05:32" (1/1) ... [2022-09-16 11:05:32,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:05:32" (1/1) ... [2022-09-16 11:05:32,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:05:32" (1/1) ... [2022-09-16 11:05:32,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:05:32" (1/1) ... [2022-09-16 11:05:32,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:05:32,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:05:32,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:05:32,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:05:32,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:05:32" (1/1) ... [2022-09-16 11:05:32,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:05:32,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:05:32,303 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 11:05:32,311 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 11:05:32,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:05:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:05:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:05:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:05:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 11:05:32,343 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 11:05:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 11:05:32,343 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 11:05:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 11:05:32,344 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 11:05:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:05:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:05:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:05:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 11:05:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:05:32,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:05:32,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:05:32,346 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 11:05:32,471 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:05:32,473 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:05:33,156 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:05:34,202 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:05:34,203 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-09-16 11:05:34,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:05:34 BoogieIcfgContainer [2022-09-16 11:05:34,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:05:34,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:05:34,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:05:34,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:05:34,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:05:31" (1/3) ... [2022-09-16 11:05:34,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af8e07f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:05:34, skipping insertion in model container [2022-09-16 11:05:34,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:05:32" (2/3) ... [2022-09-16 11:05:34,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af8e07f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:05:34, skipping insertion in model container [2022-09-16 11:05:34,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:05:34" (3/3) ... [2022-09-16 11:05:34,217 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum2.wvr.c [2022-09-16 11:05:34,226 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 11:05:34,236 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:05:34,236 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2022-09-16 11:05:34,236 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:05:34,584 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-16 11:05:34,634 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 242 places, 248 transitions, 520 flow [2022-09-16 11:05:36,606 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 68322 states, 64944 states have (on average 3.9903763242177877) internal successors, (259151), 68321 states have internal predecessors, (259151), 0 states have call successors, (0), 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 11:05:36,633 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:05:36,644 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;@44c5bf88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:05:36,644 INFO L358 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2022-09-16 11:05:36,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 68322 states, 64944 states have (on average 3.9903763242177877) internal successors, (259151), 68321 states have internal predecessors, (259151), 0 states have call successors, (0), 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 11:05:36,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-09-16 11:05:36,772 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:05:36,773 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 11:05:36,774 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:05:36,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:05:36,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1294000257, now seen corresponding path program 1 times [2022-09-16 11:05:36,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:05:36,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318540437] [2022-09-16 11:05:36,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:36,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:05:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:37,073 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 11:05:37,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:05:37,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318540437] [2022-09-16 11:05:37,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318540437] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:05:37,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:05:37,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:05:37,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830409098] [2022-09-16 11:05:37,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:05:37,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:05:37,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:05:37,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:05:37,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:05:37,264 INFO L87 Difference]: Start difference. First operand has 68322 states, 64944 states have (on average 3.9903763242177877) internal successors, (259151), 68321 states have internal predecessors, (259151), 0 states have call successors, (0), 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 18.0) internal successors, (54), 4 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 11:05:39,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:05:39,028 INFO L93 Difference]: Finished difference Result 61583 states and 225103 transitions. [2022-09-16 11:05:39,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:05:39,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 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 11:05:39,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:05:39,686 INFO L225 Difference]: With dead ends: 61583 [2022-09-16 11:05:39,687 INFO L226 Difference]: Without dead ends: 61577 [2022-09-16 11:05:39,692 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 11:05:39,699 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 118 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 11:05:39,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 460 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 11:05:39,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61577 states. [2022-09-16 11:05:41,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61577 to 30837. [2022-09-16 11:05:41,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30837 states, 30105 states have (on average 3.7402092675635275) internal successors, (112599), 30836 states have internal predecessors, (112599), 0 states have call successors, (0), 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 11:05:41,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30837 states to 30837 states and 112599 transitions. [2022-09-16 11:05:41,773 INFO L78 Accepts]: Start accepts. Automaton has 30837 states and 112599 transitions. Word has length 54 [2022-09-16 11:05:41,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:05:41,774 INFO L495 AbstractCegarLoop]: Abstraction has 30837 states and 112599 transitions. [2022-09-16 11:05:41,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 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 11:05:41,775 INFO L276 IsEmpty]: Start isEmpty. Operand 30837 states and 112599 transitions. [2022-09-16 11:05:41,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-09-16 11:05:41,776 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:05:41,777 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] [2022-09-16 11:05:41,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:05:41,777 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:05:41,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:05:41,778 INFO L85 PathProgramCache]: Analyzing trace with hash 300114495, now seen corresponding path program 1 times [2022-09-16 11:05:41,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:05:41,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043164757] [2022-09-16 11:05:41,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:41,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:05:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:41,907 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 11:05:41,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:05:41,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043164757] [2022-09-16 11:05:41,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043164757] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:05:41,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343563249] [2022-09-16 11:05:41,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:41,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:05:41,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:05:41,911 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 11:05:41,917 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 11:05:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:42,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:05:42,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:05:42,312 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 11:05:42,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:05:42,369 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 11:05:42,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343563249] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:05:42,373 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:05:42,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 11:05:42,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479512944] [2022-09-16 11:05:42,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:05:42,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 11:05:42,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:05:42,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 11:05:42,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 11:05:42,380 INFO L87 Difference]: Start difference. First operand 30837 states and 112599 transitions. Second operand has 12 states, 11 states have (on average 8.0) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 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 11:05:44,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:05:44,282 INFO L93 Difference]: Finished difference Result 153843 states and 562643 transitions. [2022-09-16 11:05:44,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 11:05:44,283 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 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 63 [2022-09-16 11:05:44,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:05:46,433 INFO L225 Difference]: With dead ends: 153843 [2022-09-16 11:05:46,433 INFO L226 Difference]: Without dead ends: 153843 [2022-09-16 11:05:46,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 119 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 11:05:46,434 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 1058 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 11:05:46,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 968 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 11:05:46,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153843 states. [2022-09-16 11:05:48,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153843 to 30889. [2022-09-16 11:05:49,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30889 states, 30157 states have (on average 3.7358158968067117) internal successors, (112661), 30888 states have internal predecessors, (112661), 0 states have call successors, (0), 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 11:05:49,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30889 states to 30889 states and 112661 transitions. [2022-09-16 11:05:49,465 INFO L78 Accepts]: Start accepts. Automaton has 30889 states and 112661 transitions. Word has length 63 [2022-09-16 11:05:49,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:05:49,465 INFO L495 AbstractCegarLoop]: Abstraction has 30889 states and 112661 transitions. [2022-09-16 11:05:49,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 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 11:05:49,465 INFO L276 IsEmpty]: Start isEmpty. Operand 30889 states and 112661 transitions. [2022-09-16 11:05:49,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-09-16 11:05:49,467 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:05:49,467 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] [2022-09-16 11:05:49,486 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 11:05:49,679 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 11:05:49,680 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:05:49,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:05:49,680 INFO L85 PathProgramCache]: Analyzing trace with hash 713616129, now seen corresponding path program 1 times [2022-09-16 11:05:49,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:05:49,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337756830] [2022-09-16 11:05:49,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:49,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:05:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:49,780 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 11:05:49,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:05:49,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337756830] [2022-09-16 11:05:49,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337756830] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:05:49,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526334280] [2022-09-16 11:05:49,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:49,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:05:49,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:05:49,782 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 11:05:49,809 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 11:05:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:50,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:05:50,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:05:50,170 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 11:05:50,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:05:50,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526334280] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:05:50,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:05:50,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 11:05:50,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911127099] [2022-09-16 11:05:50,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:05:50,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:05:50,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:05:50,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:05:50,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:05:50,174 INFO L87 Difference]: Start difference. First operand 30889 states and 112661 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 11:05:51,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:05:51,147 INFO L93 Difference]: Finished difference Result 61623 states and 225149 transitions. [2022-09-16 11:05:51,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:05:51,148 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-09-16 11:05:51,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:05:51,575 INFO L225 Difference]: With dead ends: 61623 [2022-09-16 11:05:51,575 INFO L226 Difference]: Without dead ends: 61623 [2022-09-16 11:05:51,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 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 11:05:51,577 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 239 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 11:05:51,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 654 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 11:05:51,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61623 states. [2022-09-16 11:05:52,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61623 to 30887. [2022-09-16 11:05:52,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30887 states, 30157 states have (on average 3.7356169380243394) internal successors, (112655), 30886 states have internal predecessors, (112655), 0 states have call successors, (0), 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 11:05:53,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30887 states to 30887 states and 112655 transitions. [2022-09-16 11:05:53,063 INFO L78 Accepts]: Start accepts. Automaton has 30887 states and 112655 transitions. Word has length 64 [2022-09-16 11:05:53,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:05:53,063 INFO L495 AbstractCegarLoop]: Abstraction has 30887 states and 112655 transitions. [2022-09-16 11:05:53,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 11:05:53,064 INFO L276 IsEmpty]: Start isEmpty. Operand 30887 states and 112655 transitions. [2022-09-16 11:05:53,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-09-16 11:05:53,065 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:05:53,065 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] [2022-09-16 11:05:53,082 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 11:05:53,266 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 11:05:53,266 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:05:53,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:05:53,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1345892481, now seen corresponding path program 2 times [2022-09-16 11:05:53,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:05:53,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36876999] [2022-09-16 11:05:53,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:53,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:05:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:53,437 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 11:05:53,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:05:53,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36876999] [2022-09-16 11:05:53,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36876999] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:05:53,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763853975] [2022-09-16 11:05:53,442 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 11:05:53,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:05:53,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:05:53,444 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 11:05:53,446 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 11:05:53,680 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 11:05:53,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 11:05:53,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 11:05:53,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:05:53,834 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 11:05:53,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:05:53,964 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 11:05:53,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763853975] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:05:53,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:05:53,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-09-16 11:05:53,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398129935] [2022-09-16 11:05:53,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:05:53,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 11:05:53,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:05:53,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 11:05:53,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-09-16 11:05:53,966 INFO L87 Difference]: Start difference. First operand 30887 states and 112655 transitions. Second operand has 18 states, 17 states have (on average 7.588235294117647) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 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 11:05:57,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:05:57,840 INFO L93 Difference]: Finished difference Result 215327 states and 787647 transitions. [2022-09-16 11:05:57,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 11:05:57,841 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.588235294117647) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 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 90 [2022-09-16 11:05:57,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:05:59,660 INFO L225 Difference]: With dead ends: 215327 [2022-09-16 11:05:59,660 INFO L226 Difference]: Without dead ends: 215327 [2022-09-16 11:05:59,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 170 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=419, Invalid=1063, Unknown=0, NotChecked=0, Total=1482 [2022-09-16 11:05:59,661 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 3883 mSDsluCounter, 1693 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3883 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 11:05:59,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3883 Valid, 1512 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 11:06:00,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215327 states. [2022-09-16 11:06:03,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215327 to 30819. [2022-09-16 11:06:03,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30819 states, 30091 states have (on average 3.7412847695324185) internal successors, (112579), 30818 states have internal predecessors, (112579), 0 states have call successors, (0), 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 11:06:03,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30819 states to 30819 states and 112579 transitions. [2022-09-16 11:06:03,204 INFO L78 Accepts]: Start accepts. Automaton has 30819 states and 112579 transitions. Word has length 90 [2022-09-16 11:06:03,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:06:03,204 INFO L495 AbstractCegarLoop]: Abstraction has 30819 states and 112579 transitions. [2022-09-16 11:06:03,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.588235294117647) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 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 11:06:03,205 INFO L276 IsEmpty]: Start isEmpty. Operand 30819 states and 112579 transitions. [2022-09-16 11:06:03,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-09-16 11:06:03,206 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:06:03,206 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] [2022-09-16 11:06:03,224 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 11:06:03,408 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 11:06:03,408 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:06:03,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:06:03,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1599506779, now seen corresponding path program 1 times [2022-09-16 11:06:03,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:06:03,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802115059] [2022-09-16 11:06:03,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:03,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:06:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:03,517 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 11:06:03,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:06:03,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802115059] [2022-09-16 11:06:03,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802115059] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:06:03,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:06:03,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 11:06:03,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676661766] [2022-09-16 11:06:03,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:06:03,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 11:06:03,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:06:03,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 11:06:03,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-09-16 11:06:03,519 INFO L87 Difference]: Start difference. First operand 30819 states and 112579 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 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 11:06:04,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:06:04,748 INFO L93 Difference]: Finished difference Result 48540 states and 172952 transitions. [2022-09-16 11:06:04,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 11:06:04,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 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 11:06:04,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:06:04,972 INFO L225 Difference]: With dead ends: 48540 [2022-09-16 11:06:04,973 INFO L226 Difference]: Without dead ends: 48396 [2022-09-16 11:06:04,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-09-16 11:06:04,974 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 1095 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 11:06:04,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1095 Valid, 623 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 11:06:05,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48396 states. [2022-09-16 11:06:06,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48396 to 33927. [2022-09-16 11:06:06,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33927 states, 33199 states have (on average 3.7321003644688093) internal successors, (123902), 33926 states have internal predecessors, (123902), 0 states have call successors, (0), 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 11:06:06,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33927 states to 33927 states and 123902 transitions. [2022-09-16 11:06:06,762 INFO L78 Accepts]: Start accepts. Automaton has 33927 states and 123902 transitions. Word has length 94 [2022-09-16 11:06:06,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:06:06,762 INFO L495 AbstractCegarLoop]: Abstraction has 33927 states and 123902 transitions. [2022-09-16 11:06:06,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 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 11:06:06,763 INFO L276 IsEmpty]: Start isEmpty. Operand 33927 states and 123902 transitions. [2022-09-16 11:06:06,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-09-16 11:06:06,764 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:06:06,764 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] [2022-09-16 11:06:06,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:06:06,765 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:06:06,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:06:06,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1962345758, now seen corresponding path program 1 times [2022-09-16 11:06:06,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:06:06,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234753920] [2022-09-16 11:06:06,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:06,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:06:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:06,933 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 11:06:06,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:06:06,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234753920] [2022-09-16 11:06:06,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234753920] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:06:06,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:06:06,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 11:06:06,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021096216] [2022-09-16 11:06:06,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:06:06,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-09-16 11:06:06,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:06:06,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-09-16 11:06:06,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-09-16 11:06:06,936 INFO L87 Difference]: Start difference. First operand 33927 states and 123902 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 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 11:06:07,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:06:07,628 INFO L93 Difference]: Finished difference Result 35320 states and 126638 transitions. [2022-09-16 11:06:07,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-16 11:06:07,628 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-09-16 11:06:07,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:06:08,137 INFO L225 Difference]: With dead ends: 35320 [2022-09-16 11:06:08,137 INFO L226 Difference]: Without dead ends: 35044 [2022-09-16 11:06:08,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=334, Unknown=0, NotChecked=0, Total=506 [2022-09-16 11:06:08,138 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 1190 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 11:06:08,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1190 Valid, 762 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 11:06:08,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35044 states. [2022-09-16 11:06:08,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35044 to 32117. [2022-09-16 11:06:09,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32117 states, 31389 states have (on average 3.72181337411195) internal successors, (116824), 32116 states have internal predecessors, (116824), 0 states have call successors, (0), 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 11:06:09,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32117 states to 32117 states and 116824 transitions. [2022-09-16 11:06:09,124 INFO L78 Accepts]: Start accepts. Automaton has 32117 states and 116824 transitions. Word has length 100 [2022-09-16 11:06:09,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:06:09,125 INFO L495 AbstractCegarLoop]: Abstraction has 32117 states and 116824 transitions. [2022-09-16 11:06:09,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 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 11:06:09,125 INFO L276 IsEmpty]: Start isEmpty. Operand 32117 states and 116824 transitions. [2022-09-16 11:06:09,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-09-16 11:06:09,126 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:06:09,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:06:09,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 11:06:09,127 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:06:09,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:06:09,128 INFO L85 PathProgramCache]: Analyzing trace with hash -635900058, now seen corresponding path program 1 times [2022-09-16 11:06:09,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:06:09,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664553538] [2022-09-16 11:06:09,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:09,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:06:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:09,346 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 11:06:09,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:06:09,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664553538] [2022-09-16 11:06:09,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664553538] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:06:09,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:06:09,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-09-16 11:06:09,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898652773] [2022-09-16 11:06:09,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:06:09,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-09-16 11:06:09,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:06:09,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-09-16 11:06:09,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-09-16 11:06:09,348 INFO L87 Difference]: Start difference. First operand 32117 states and 116824 transitions. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 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 11:06:10,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:06:10,064 INFO L93 Difference]: Finished difference Result 30880 states and 112642 transitions. [2022-09-16 11:06:10,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 11:06:10,065 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-09-16 11:06:10,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:06:10,247 INFO L225 Difference]: With dead ends: 30880 [2022-09-16 11:06:10,248 INFO L226 Difference]: Without dead ends: 30835 [2022-09-16 11:06:10,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-09-16 11:06:10,249 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 528 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 11:06:10,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 679 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 11:06:10,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30835 states. [2022-09-16 11:06:11,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30835 to 30821. [2022-09-16 11:06:11,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30821 states, 30093 states have (on average 3.741102581995813) internal successors, (112581), 30820 states have internal predecessors, (112581), 0 states have call successors, (0), 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 11:06:11,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30821 states to 30821 states and 112581 transitions. [2022-09-16 11:06:11,216 INFO L78 Accepts]: Start accepts. Automaton has 30821 states and 112581 transitions. Word has length 106 [2022-09-16 11:06:11,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:06:11,216 INFO L495 AbstractCegarLoop]: Abstraction has 30821 states and 112581 transitions. [2022-09-16 11:06:11,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 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 11:06:11,217 INFO L276 IsEmpty]: Start isEmpty. Operand 30821 states and 112581 transitions. [2022-09-16 11:06:11,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-09-16 11:06:11,217 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:06:11,217 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] [2022-09-16 11:06:11,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 11:06:11,217 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:06:11,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:06:11,218 INFO L85 PathProgramCache]: Analyzing trace with hash -495764048, now seen corresponding path program 1 times [2022-09-16 11:06:11,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:06:11,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119739182] [2022-09-16 11:06:11,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:11,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:06:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:11,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-16 11:06:11,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:06:11,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119739182] [2022-09-16 11:06:11,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119739182] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:06:11,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:06:11,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:06:11,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549158780] [2022-09-16 11:06:11,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:06:11,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:06:11,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:06:11,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:06:11,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:06:11,325 INFO L87 Difference]: Start difference. First operand 30821 states and 112581 transitions. Second operand has 3 states, 2 states have (on average 56.0) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 11:06:12,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:06:12,037 INFO L93 Difference]: Finished difference Result 45893 states and 167361 transitions. [2022-09-16 11:06:12,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:06:12,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 56.0) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2022-09-16 11:06:12,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:06:12,280 INFO L225 Difference]: With dead ends: 45893 [2022-09-16 11:06:12,280 INFO L226 Difference]: Without dead ends: 45893 [2022-09-16 11:06:12,280 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 11:06:12,281 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 66 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:06:12,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 223 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:06:12,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45893 states. [2022-09-16 11:06:13,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45893 to 33949. [2022-09-16 11:06:13,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33949 states, 33221 states have (on average 3.970470485536257) internal successors, (131903), 33948 states have internal predecessors, (131903), 0 states have call successors, (0), 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 11:06:13,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33949 states to 33949 states and 131903 transitions. [2022-09-16 11:06:13,785 INFO L78 Accepts]: Start accepts. Automaton has 33949 states and 131903 transitions. Word has length 112 [2022-09-16 11:06:13,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:06:13,786 INFO L495 AbstractCegarLoop]: Abstraction has 33949 states and 131903 transitions. [2022-09-16 11:06:13,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 56.0) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 11:06:13,786 INFO L276 IsEmpty]: Start isEmpty. Operand 33949 states and 131903 transitions. [2022-09-16 11:06:13,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-09-16 11:06:13,787 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:06:13,796 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:13,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 11:06:13,803 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:06:13,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:06:13,805 INFO L85 PathProgramCache]: Analyzing trace with hash -495764058, now seen corresponding path program 1 times [2022-09-16 11:06:13,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:06:13,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295331208] [2022-09-16 11:06:13,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:13,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:06:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:14,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:06:14,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:06:14,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295331208] [2022-09-16 11:06:14,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295331208] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:06:14,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467257622] [2022-09-16 11:06:14,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:14,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:14,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:06:14,138 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 11:06:14,139 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 11:06:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:14,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 33 conjunts are in the unsatisfiable core [2022-09-16 11:06:14,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:06:14,633 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-09-16 11:06:14,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:06:14,828 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-09-16 11:06:14,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:06:14,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:06:14,925 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_187 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_187) c_~B~0.base) c_~B~0.offset) 9223372039002259456))) is different from false [2022-09-16 11:06:14,954 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_187 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_187) |c_ULTIMATE.start_main_#t~ret19#1.base|) |c_ULTIMATE.start_main_#t~ret19#1.offset|) 9223372039002259456))) is different from false [2022-09-16 11:06:14,962 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_187 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_187) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) 9223372039002259456))) is different from false [2022-09-16 11:06:14,967 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_187 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_187) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) 9223372039002259456))) is different from false [2022-09-16 11:06:14,994 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:14,995 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 25 [2022-09-16 11:06:15,003 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:15,003 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 36 [2022-09-16 11:06:15,025 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-09-16 11:06:15,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2022-09-16 11:06:15,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467257622] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:06:15,215 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:06:15,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 32 [2022-09-16 11:06:15,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589389155] [2022-09-16 11:06:15,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:06:15,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-09-16 11:06:15,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:06:15,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-09-16 11:06:15,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=708, Unknown=4, NotChecked=228, Total=1056 [2022-09-16 11:06:15,217 INFO L87 Difference]: Start difference. First operand 33949 states and 131903 transitions. Second operand has 33 states, 32 states have (on average 7.3125) internal successors, (234), 33 states have internal predecessors, (234), 0 states have call successors, (0), 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 11:06:16,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:06:16,999 INFO L93 Difference]: Finished difference Result 51309 states and 187835 transitions. [2022-09-16 11:06:17,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 11:06:17,000 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 7.3125) internal successors, (234), 33 states have internal predecessors, (234), 0 states have call successors, (0), 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 112 [2022-09-16 11:06:17,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:06:17,256 INFO L225 Difference]: With dead ends: 51309 [2022-09-16 11:06:17,257 INFO L226 Difference]: Without dead ends: 51309 [2022-09-16 11:06:17,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 202 SyntacticMatches, 7 SemanticMatches, 46 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=337, Invalid=1567, Unknown=4, NotChecked=348, Total=2256 [2022-09-16 11:06:17,258 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 1066 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 2140 SdHoareTripleChecker+Invalid, 2163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1205 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 11:06:17,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1066 Valid, 2140 Invalid, 2163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 915 Invalid, 0 Unknown, 1205 Unchecked, 0.6s Time] [2022-09-16 11:06:17,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51309 states. [2022-09-16 11:06:18,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51309 to 33988. [2022-09-16 11:06:18,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33988 states, 33260 states have (on average 3.968069753457607) internal successors, (131978), 33987 states have internal predecessors, (131978), 0 states have call successors, (0), 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 11:06:18,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33988 states to 33988 states and 131978 transitions. [2022-09-16 11:06:18,791 INFO L78 Accepts]: Start accepts. Automaton has 33988 states and 131978 transitions. Word has length 112 [2022-09-16 11:06:18,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:06:18,791 INFO L495 AbstractCegarLoop]: Abstraction has 33988 states and 131978 transitions. [2022-09-16 11:06:18,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 7.3125) internal successors, (234), 33 states have internal predecessors, (234), 0 states have call successors, (0), 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 11:06:18,791 INFO L276 IsEmpty]: Start isEmpty. Operand 33988 states and 131978 transitions. [2022-09-16 11:06:18,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-09-16 11:06:18,792 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:06:18,792 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] [2022-09-16 11:06:18,820 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 11:06:19,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:19,020 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:06:19,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:06:19,021 INFO L85 PathProgramCache]: Analyzing trace with hash -495764055, now seen corresponding path program 1 times [2022-09-16 11:06:19,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:06:19,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248388291] [2022-09-16 11:06:19,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:19,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:06:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:19,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:06:19,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:06:19,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248388291] [2022-09-16 11:06:19,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248388291] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:06:19,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324792206] [2022-09-16 11:06:19,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:19,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:19,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:06:19,317 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 11:06:19,319 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 11:06:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:19,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 27 conjunts are in the unsatisfiable core [2022-09-16 11:06:19,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:06:19,782 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-09-16 11:06:19,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:06:19,944 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-09-16 11:06:19,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:06:19,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:06:20,065 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_222 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_222) c_~B~0.base) c_~B~0.offset) 4294967295)) is different from false [2022-09-16 11:06:20,113 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_222 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_222) |c_ULTIMATE.start_main_#t~ret19#1.base|) |c_ULTIMATE.start_main_#t~ret19#1.offset|) 4294967295)) is different from false [2022-09-16 11:06:20,120 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_222 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_222) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) 4294967295)) is different from false [2022-09-16 11:06:20,126 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_222 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_222) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) 4294967295)) is different from false [2022-09-16 11:06:20,165 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:20,165 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2022-09-16 11:06:20,173 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:20,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 32 [2022-09-16 11:06:20,367 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2022-09-16 11:06:20,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324792206] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:06:20,367 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:06:20,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 34 [2022-09-16 11:06:20,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925021051] [2022-09-16 11:06:20,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:06:20,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-09-16 11:06:20,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:06:20,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-09-16 11:06:20,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=826, Unknown=4, NotChecked=244, Total=1190 [2022-09-16 11:06:20,369 INFO L87 Difference]: Start difference. First operand 33988 states and 131978 transitions. Second operand has 35 states, 34 states have (on average 7.0) internal successors, (238), 35 states have internal predecessors, (238), 0 states have call successors, (0), 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 11:06:22,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:06:22,417 INFO L93 Difference]: Finished difference Result 51304 states and 187825 transitions. [2022-09-16 11:06:22,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 11:06:22,417 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 7.0) internal successors, (238), 35 states have internal predecessors, (238), 0 states have call successors, (0), 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 112 [2022-09-16 11:06:22,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:06:22,685 INFO L225 Difference]: With dead ends: 51304 [2022-09-16 11:06:22,685 INFO L226 Difference]: Without dead ends: 51304 [2022-09-16 11:06:22,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 201 SyntacticMatches, 6 SemanticMatches, 48 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=342, Invalid=1740, Unknown=4, NotChecked=364, Total=2450 [2022-09-16 11:06:22,686 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 1162 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 2920 SdHoareTripleChecker+Invalid, 2368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1013 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:06:22,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 2920 Invalid, 2368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1312 Invalid, 0 Unknown, 1013 Unchecked, 1.0s Time] [2022-09-16 11:06:22,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51304 states. [2022-09-16 11:06:23,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51304 to 33988. [2022-09-16 11:06:23,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33988 states, 33260 states have (on average 3.967919422730006) internal successors, (131973), 33987 states have internal predecessors, (131973), 0 states have call successors, (0), 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 11:06:24,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33988 states to 33988 states and 131973 transitions. [2022-09-16 11:06:24,118 INFO L78 Accepts]: Start accepts. Automaton has 33988 states and 131973 transitions. Word has length 112 [2022-09-16 11:06:24,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:06:24,118 INFO L495 AbstractCegarLoop]: Abstraction has 33988 states and 131973 transitions. [2022-09-16 11:06:24,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 7.0) internal successors, (238), 35 states have internal predecessors, (238), 0 states have call successors, (0), 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 11:06:24,118 INFO L276 IsEmpty]: Start isEmpty. Operand 33988 states and 131973 transitions. [2022-09-16 11:06:24,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-09-16 11:06:24,119 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:06:24,119 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] [2022-09-16 11:06:24,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-16 11:06:24,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-09-16 11:06:24,320 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:06:24,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:06:24,320 INFO L85 PathProgramCache]: Analyzing trace with hash -495764054, now seen corresponding path program 1 times [2022-09-16 11:06:24,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:06:24,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810999009] [2022-09-16 11:06:24,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:24,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:06:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:25,070 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 11:06:25,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:06:25,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810999009] [2022-09-16 11:06:25,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810999009] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:06:25,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336083209] [2022-09-16 11:06:25,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:25,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:25,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:06:25,073 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 11:06:25,074 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 11:06:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:25,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 38 conjunts are in the unsatisfiable core [2022-09-16 11:06:25,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:06:25,411 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-09-16 11:06:25,560 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-09-16 11:06:26,090 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-16 11:06:26,091 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-09-16 11:06:26,204 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-09-16 11:06:26,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:06:26,329 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-09-16 11:06:26,374 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 11:06:26,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:06:28,588 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_259 (Array Int Int)) (~B~0.offset Int) (~B~0.base Int)) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_259))) (let ((.cse0 (select (select .cse1 ~B~0.base) ~B~0.offset))) (or (< (+ 9223372039002259455 .cse0) 0) (<= 0 .cse0) (<= (+ .cse0 (select (select .cse1 c_~A~0.base) c_~A~0.offset)) 2147483647))))) (forall ((v_ArrVal_259 (Array Int Int)) (~B~0.offset Int) (~B~0.base Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_259))) (let ((.cse2 (select (select .cse3 ~B~0.base) ~B~0.offset))) (or (not (<= .cse2 0)) (<= (+ .cse2 (select (select .cse3 c_~A~0.base) c_~A~0.offset)) 2147483647) (not (<= 0 .cse2))))))) is different from false [2022-09-16 11:06:28,944 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_259 (Array Int Int)) (~B~0.offset Int) (~B~0.base Int) (v_ArrVal_258 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_258) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_259))) (let ((.cse0 (select (select .cse1 ~B~0.base) ~B~0.offset))) (or (<= (+ .cse0 (select (select .cse1 c_~A~0.base) c_~A~0.offset)) 2147483647) (< (+ 9223372039002259455 .cse0) 0) (<= 0 .cse0))))) (forall ((v_ArrVal_259 (Array Int Int)) (~B~0.offset Int) (~B~0.base Int) (v_ArrVal_258 (Array Int Int))) (let ((.cse3 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_258) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_259))) (let ((.cse2 (select (select .cse3 ~B~0.base) ~B~0.offset))) (or (not (<= .cse2 0)) (not (<= 0 .cse2)) (<= (+ .cse2 (select (select .cse3 c_~A~0.base) c_~A~0.offset)) 2147483647)))))) is different from false [2022-09-16 11:06:29,038 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_259 (Array Int Int)) (~B~0.offset Int) (~B~0.base Int) (v_ArrVal_258 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.base| v_ArrVal_258) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_259))) (let ((.cse0 (select (select .cse1 ~B~0.base) ~B~0.offset))) (or (< (+ 9223372039002259455 .cse0) 0) (<= (+ .cse0 (select (select .cse1 c_~A~0.base) c_~A~0.offset)) 2147483647) (<= 0 .cse0))))) (forall ((v_ArrVal_259 (Array Int Int)) (~B~0.offset Int) (~B~0.base Int) (v_ArrVal_258 (Array Int Int))) (let ((.cse3 (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.base| v_ArrVal_258) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_259))) (let ((.cse2 (select (select .cse3 ~B~0.base) ~B~0.offset))) (or (<= (+ .cse2 (select (select .cse3 c_~A~0.base) c_~A~0.offset)) 2147483647) (not (<= 0 .cse2)) (not (<= .cse2 0))))))) is different from false [2022-09-16 11:06:38,910 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:38,910 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 217 treesize of output 134 [2022-09-16 11:06:39,055 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:39,056 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2412 treesize of output 2253 [2022-09-16 11:06:39,106 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:39,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2175 treesize of output 2144 [2022-09-16 11:06:39,161 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:39,162 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2135 treesize of output 2064 [2022-09-16 11:06:39,222 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:39,223 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2055 treesize of output 1992 [2022-09-16 11:06:39,283 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:39,284 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1983 treesize of output 1848