/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-sum.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:04:06,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:04:06,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:04:06,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:04:06,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:04:06,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:04:06,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:04:06,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:04:06,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:04:06,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:04:06,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:04:06,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:04:06,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:04:06,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:04:06,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:04:06,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:04:06,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:04:06,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:04:06,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:04:06,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:04:06,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:04:06,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:04:06,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:04:06,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:04:06,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:04:06,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:04:06,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:04:06,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:04:06,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:04:06,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:04:06,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:04:06,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:04:06,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:04:06,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:04:06,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:04:06,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:04:06,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:04:06,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:04:06,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:04:06,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:04:06,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:04:06,325 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 11:04:06,354 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:04:06,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:04:06,355 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 11:04:06,355 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 11:04:06,356 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:04:06,356 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:04:06,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:04:06,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:04:06,357 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:04:06,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:04:06,358 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:04:06,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:04:06,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:04:06,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:04:06,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:04:06,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:04:06,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:04:06,359 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:04:06,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:04:06,359 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:04:06,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:04:06,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:04:06,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:04:06,360 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:04:06,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:04:06,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:04:06,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:04:06,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:04:06,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:04:06,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:04:06,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:04:06,361 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:04:06,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 11:04:06,361 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:04:06,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:04:06,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:04:06,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:04:06,623 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:04:06,624 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:04:06,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-array-sum.wvr.c [2022-09-16 11:04:06,683 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759c8262d/a68d99afcd0245aea375171514bb5385/FLAG880badcee [2022-09-16 11:04:07,104 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:04:07,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum.wvr.c [2022-09-16 11:04:07,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759c8262d/a68d99afcd0245aea375171514bb5385/FLAG880badcee [2022-09-16 11:04:07,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759c8262d/a68d99afcd0245aea375171514bb5385 [2022-09-16 11:04:07,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:04:07,518 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:04:07,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:04:07,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:04:07,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:04:07,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:04:07" (1/1) ... [2022-09-16 11:04:07,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77bdb961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:04:07, skipping insertion in model container [2022-09-16 11:04:07,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:04:07" (1/1) ... [2022-09-16 11:04:07,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:04:07,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:04:07,753 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-sum.wvr.c[2835,2848] [2022-09-16 11:04:07,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:04:07,769 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:04:07,804 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-sum.wvr.c[2835,2848] [2022-09-16 11:04:07,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:04:07,822 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:04:07,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:04:07 WrapperNode [2022-09-16 11:04:07,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:04:07,825 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:04:07,825 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:04:07,825 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:04:07,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:04:07" (1/1) ... [2022-09-16 11:04:07,850 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:04:07" (1/1) ... [2022-09-16 11:04:07,888 INFO L138 Inliner]: procedures = 25, calls = 58, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 374 [2022-09-16 11:04:07,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:04:07,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:04:07,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:04:07,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:04:07,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:04:07" (1/1) ... [2022-09-16 11:04:07,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:04:07" (1/1) ... [2022-09-16 11:04:07,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:04:07" (1/1) ... [2022-09-16 11:04:07,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:04:07" (1/1) ... [2022-09-16 11:04:07,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:04:07" (1/1) ... [2022-09-16 11:04:07,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:04:07" (1/1) ... [2022-09-16 11:04:07,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:04:07" (1/1) ... [2022-09-16 11:04:07,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:04:07,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:04:07,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:04:07,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:04:07,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:04:07" (1/1) ... [2022-09-16 11:04:07,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:04:07,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:04:07,985 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 11:04:08,007 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 11:04:08,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:04:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:04:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:04:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:04:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 11:04:08,026 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 11:04:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 11:04:08,026 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 11:04:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 11:04:08,026 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 11:04:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:04:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:04:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:04:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 11:04:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:04:08,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:04:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:04:08,029 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 11:04:08,158 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:04:08,160 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:04:08,720 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:04:10,098 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:04:10,099 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-09-16 11:04:10,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:04:10 BoogieIcfgContainer [2022-09-16 11:04:10,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:04:10,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:04:10,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:04:10,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:04:10,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:04:07" (1/3) ... [2022-09-16 11:04:10,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567781a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:04:10, skipping insertion in model container [2022-09-16 11:04:10,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:04:07" (2/3) ... [2022-09-16 11:04:10,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567781a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:04:10, skipping insertion in model container [2022-09-16 11:04:10,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:04:10" (3/3) ... [2022-09-16 11:04:10,110 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum.wvr.c [2022-09-16 11:04:10,119 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 11:04:10,127 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:04:10,127 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2022-09-16 11:04:10,127 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:04:10,515 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-16 11:04:10,558 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 245 places, 251 transitions, 526 flow [2022-09-16 11:04:12,664 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 76594 states, 73216 states have (on average 3.966906140734266) internal successors, (290441), 76593 states have internal predecessors, (290441), 0 states have call successors, (0), 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 11:04:12,687 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:04:12,692 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;@153c0fe2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:04:12,693 INFO L358 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2022-09-16 11:04:12,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 76594 states, 73216 states have (on average 3.966906140734266) internal successors, (290441), 76593 states have internal predecessors, (290441), 0 states have call successors, (0), 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 11:04:12,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-09-16 11:04:12,887 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:04:12,887 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 11:04:12,888 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 11:04:12,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:04:12,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1654529998, now seen corresponding path program 1 times [2022-09-16 11:04:12,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:04:12,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289915246] [2022-09-16 11:04:12,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:04:12,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:04:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:04:13,152 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 11:04:13,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:04:13,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289915246] [2022-09-16 11:04:13,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289915246] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:04:13,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:04:13,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:04:13,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481654250] [2022-09-16 11:04:13,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:04:13,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:04:13,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:04:13,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:04:13,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:04:13,344 INFO L87 Difference]: Start difference. First operand has 76594 states, 73216 states have (on average 3.966906140734266) internal successors, (290441), 76593 states have internal predecessors, (290441), 0 states have call successors, (0), 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 11:04:15,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:04:15,080 INFO L93 Difference]: Finished difference Result 71431 states and 261475 transitions. [2022-09-16 11:04:15,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:04:15,083 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 11:04:15,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:04:15,742 INFO L225 Difference]: With dead ends: 71431 [2022-09-16 11:04:15,742 INFO L226 Difference]: Without dead ends: 71425 [2022-09-16 11:04:15,744 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 11:04:15,746 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 121 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 11:04:15,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 469 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 11:04:16,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71425 states. [2022-09-16 11:04:17,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71425 to 35761. [2022-09-16 11:04:17,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35761 states, 35029 states have (on average 3.733620714265323) internal successors, (130785), 35760 states have internal predecessors, (130785), 0 states have call successors, (0), 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 11:04:17,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35761 states to 35761 states and 130785 transitions. [2022-09-16 11:04:17,996 INFO L78 Accepts]: Start accepts. Automaton has 35761 states and 130785 transitions. Word has length 54 [2022-09-16 11:04:17,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:04:17,998 INFO L495 AbstractCegarLoop]: Abstraction has 35761 states and 130785 transitions. [2022-09-16 11:04:17,999 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 11:04:17,999 INFO L276 IsEmpty]: Start isEmpty. Operand 35761 states and 130785 transitions. [2022-09-16 11:04:18,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-09-16 11:04:18,003 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:04:18,004 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 11:04:18,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:04:18,005 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 11:04:18,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:04:18,006 INFO L85 PathProgramCache]: Analyzing trace with hash -457926940, now seen corresponding path program 1 times [2022-09-16 11:04:18,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:04:18,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318218729] [2022-09-16 11:04:18,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:04:18,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:04:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:04:18,100 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 11:04:18,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:04:18,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318218729] [2022-09-16 11:04:18,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318218729] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:04:18,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788638187] [2022-09-16 11:04:18,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:04:18,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:04:18,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:04:18,107 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 11:04:18,109 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 11:04:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:04:18,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:04:18,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:04:18,643 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 11:04:18,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:04:18,717 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 11:04:18,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788638187] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:04:18,718 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:04:18,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 11:04:18,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805513778] [2022-09-16 11:04:18,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:04:18,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 11:04:18,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:04:18,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 11:04:18,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 11:04:18,721 INFO L87 Difference]: Start difference. First operand 35761 states and 130785 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 11:04:21,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:04:21,653 INFO L93 Difference]: Finished difference Result 178463 states and 653573 transitions. [2022-09-16 11:04:21,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 11:04:21,654 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 11:04:21,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:04:23,099 INFO L225 Difference]: With dead ends: 178463 [2022-09-16 11:04:23,099 INFO L226 Difference]: Without dead ends: 178463 [2022-09-16 11:04:23,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2022-09-16 11:04:23,102 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 621 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 11:04:23,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 1038 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 11:04:23,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178463 states. [2022-09-16 11:04:26,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178463 to 35813. [2022-09-16 11:04:26,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35813 states, 35081 states have (on average 3.7298537669963796) internal successors, (130847), 35812 states have internal predecessors, (130847), 0 states have call successors, (0), 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 11:04:26,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35813 states to 35813 states and 130847 transitions. [2022-09-16 11:04:26,490 INFO L78 Accepts]: Start accepts. Automaton has 35813 states and 130847 transitions. Word has length 63 [2022-09-16 11:04:26,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:04:26,490 INFO L495 AbstractCegarLoop]: Abstraction has 35813 states and 130847 transitions. [2022-09-16 11:04:26,490 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 11:04:26,491 INFO L276 IsEmpty]: Start isEmpty. Operand 35813 states and 130847 transitions. [2022-09-16 11:04:26,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-09-16 11:04:26,491 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:04:26,491 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 11:04:26,513 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 11:04:26,700 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 11:04:26,701 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 11:04:26,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:04:26,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1310831756, now seen corresponding path program 1 times [2022-09-16 11:04:26,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:04:26,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718327461] [2022-09-16 11:04:26,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:04:26,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:04:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:04:26,812 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 11:04:26,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:04:26,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718327461] [2022-09-16 11:04:26,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718327461] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:04:26,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993511054] [2022-09-16 11:04:26,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:04:26,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:04:26,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:04:26,816 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 11:04:26,836 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 11:04:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:04:27,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:04:27,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:04:27,337 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 11:04:27,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:04:27,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993511054] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:04:27,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:04:27,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 11:04:27,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195015265] [2022-09-16 11:04:27,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:04:27,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:04:27,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:04:27,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:04:27,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:04:27,340 INFO L87 Difference]: Start difference. First operand 35813 states and 130847 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 11:04:28,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:04:28,415 INFO L93 Difference]: Finished difference Result 71471 states and 261521 transitions. [2022-09-16 11:04:28,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:04:28,416 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 11:04:28,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:04:29,361 INFO L225 Difference]: With dead ends: 71471 [2022-09-16 11:04:29,361 INFO L226 Difference]: Without dead ends: 71471 [2022-09-16 11:04:29,361 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 11:04:29,363 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 245 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 669 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 11:04:29,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 669 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 11:04:29,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71471 states. [2022-09-16 11:04:30,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71471 to 35811. [2022-09-16 11:04:30,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35811 states, 35081 states have (on average 3.7296827342436076) internal successors, (130841), 35810 states have internal predecessors, (130841), 0 states have call successors, (0), 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 11:04:31,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35811 states to 35811 states and 130841 transitions. [2022-09-16 11:04:31,034 INFO L78 Accepts]: Start accepts. Automaton has 35811 states and 130841 transitions. Word has length 64 [2022-09-16 11:04:31,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:04:31,035 INFO L495 AbstractCegarLoop]: Abstraction has 35811 states and 130841 transitions. [2022-09-16 11:04:31,035 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 11:04:31,035 INFO L276 IsEmpty]: Start isEmpty. Operand 35811 states and 130841 transitions. [2022-09-16 11:04:31,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-09-16 11:04:31,037 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:04:31,037 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 11:04:31,061 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 11:04:31,255 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 11:04:31,256 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 11:04:31,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:04:31,256 INFO L85 PathProgramCache]: Analyzing trace with hash -2048188238, now seen corresponding path program 2 times [2022-09-16 11:04:31,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:04:31,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779294278] [2022-09-16 11:04:31,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:04:31,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:04:31,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:04:31,411 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 11:04:31,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:04:31,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779294278] [2022-09-16 11:04:31,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779294278] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:04:31,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395777620] [2022-09-16 11:04:31,413 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 11:04:31,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:04:31,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:04:31,414 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 11:04:31,415 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 11:04:31,826 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 11:04:31,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 11:04:31,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 11:04:31,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:04:31,971 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 11:04:31,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:04:32,120 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 11:04:32,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395777620] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:04:32,121 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:04:32,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-09-16 11:04:32,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372520281] [2022-09-16 11:04:32,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:04:32,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 11:04:32,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:04:32,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 11:04:32,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-09-16 11:04:32,125 INFO L87 Difference]: Start difference. First operand 35811 states and 130841 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 11:04:36,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:04:36,146 INFO L93 Difference]: Finished difference Result 249795 states and 914949 transitions. [2022-09-16 11:04:36,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 11:04:36,147 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 11:04:36,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:04:38,195 INFO L225 Difference]: With dead ends: 249795 [2022-09-16 11:04:38,195 INFO L226 Difference]: Without dead ends: 249795 [2022-09-16 11:04:38,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 170 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=419, Invalid=1063, Unknown=0, NotChecked=0, Total=1482 [2022-09-16 11:04:38,197 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 3639 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3639 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 11:04:38,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3639 Valid, 1343 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-09-16 11:04:38,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249795 states. [2022-09-16 11:04:41,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249795 to 35743. [2022-09-16 11:04:41,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35743 states, 35015 states have (on average 3.7345423389975725) internal successors, (130765), 35742 states have internal predecessors, (130765), 0 states have call successors, (0), 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 11:04:42,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35743 states to 35743 states and 130765 transitions. [2022-09-16 11:04:42,544 INFO L78 Accepts]: Start accepts. Automaton has 35743 states and 130765 transitions. Word has length 90 [2022-09-16 11:04:42,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:04:42,548 INFO L495 AbstractCegarLoop]: Abstraction has 35743 states and 130765 transitions. [2022-09-16 11:04:42,550 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 11:04:42,550 INFO L276 IsEmpty]: Start isEmpty. Operand 35743 states and 130765 transitions. [2022-09-16 11:04:42,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-09-16 11:04:42,557 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:04:42,557 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 11:04:42,585 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 11:04:42,779 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 11:04:42,780 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:04:42,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:04:42,780 INFO L85 PathProgramCache]: Analyzing trace with hash -2050201646, now seen corresponding path program 1 times [2022-09-16 11:04:42,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:04:42,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585570689] [2022-09-16 11:04:42,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:04:42,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:04:42,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:04:42,876 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 11:04:42,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:04:42,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585570689] [2022-09-16 11:04:42,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585570689] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:04:42,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:04:42,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 11:04:42,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109688514] [2022-09-16 11:04:42,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:04:42,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 11:04:42,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:04:42,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 11:04:42,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-09-16 11:04:42,878 INFO L87 Difference]: Start difference. First operand 35743 states and 130765 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 11:04:43,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:04:43,589 INFO L93 Difference]: Finished difference Result 55324 states and 197558 transitions. [2022-09-16 11:04:43,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 11:04:43,590 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 11:04:43,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:04:44,302 INFO L225 Difference]: With dead ends: 55324 [2022-09-16 11:04:44,302 INFO L226 Difference]: Without dead ends: 55180 [2022-09-16 11:04:44,302 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 11:04:44,303 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 1137 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 11:04:44,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 591 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 11:04:44,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55180 states. [2022-09-16 11:04:45,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55180 to 39175. [2022-09-16 11:04:45,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39175 states, 38447 states have (on average 3.727052825968216) internal successors, (143294), 39174 states have internal predecessors, (143294), 0 states have call successors, (0), 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 11:04:45,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39175 states to 39175 states and 143294 transitions. [2022-09-16 11:04:45,436 INFO L78 Accepts]: Start accepts. Automaton has 39175 states and 143294 transitions. Word has length 94 [2022-09-16 11:04:45,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:04:45,436 INFO L495 AbstractCegarLoop]: Abstraction has 39175 states and 143294 transitions. [2022-09-16 11:04:45,436 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 11:04:45,436 INFO L276 IsEmpty]: Start isEmpty. Operand 39175 states and 143294 transitions. [2022-09-16 11:04:45,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-09-16 11:04:45,438 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:04:45,438 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 11:04:45,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:04:45,438 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:04:45,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:04:45,439 INFO L85 PathProgramCache]: Analyzing trace with hash -186796936, now seen corresponding path program 1 times [2022-09-16 11:04:45,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:04:45,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877428792] [2022-09-16 11:04:45,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:04:45,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:04:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:04:45,581 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 11:04:45,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:04:45,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877428792] [2022-09-16 11:04:45,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877428792] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:04:45,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:04:45,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-09-16 11:04:45,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543197384] [2022-09-16 11:04:45,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:04:45,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-09-16 11:04:45,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:04:45,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-09-16 11:04:45,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-09-16 11:04:45,584 INFO L87 Difference]: Start difference. First operand 39175 states and 143294 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 11:04:46,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:04:46,591 INFO L93 Difference]: Finished difference Result 40480 states and 145590 transitions. [2022-09-16 11:04:46,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-16 11:04:46,592 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 11:04:46,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:04:46,760 INFO L225 Difference]: With dead ends: 40480 [2022-09-16 11:04:46,760 INFO L226 Difference]: Without dead ends: 40204 [2022-09-16 11:04:46,760 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 11:04:46,761 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 1135 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 11:04:46,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1135 Valid, 889 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 11:04:46,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40204 states. [2022-09-16 11:04:47,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40204 to 37111. [2022-09-16 11:04:47,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37111 states, 36383 states have (on average 3.7174504576313114) internal successors, (135252), 37110 states have internal predecessors, (135252), 0 states have call successors, (0), 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 11:04:48,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37111 states to 37111 states and 135252 transitions. [2022-09-16 11:04:48,206 INFO L78 Accepts]: Start accepts. Automaton has 37111 states and 135252 transitions. Word has length 100 [2022-09-16 11:04:48,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:04:48,207 INFO L495 AbstractCegarLoop]: Abstraction has 37111 states and 135252 transitions. [2022-09-16 11:04:48,207 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 11:04:48,207 INFO L276 IsEmpty]: Start isEmpty. Operand 37111 states and 135252 transitions. [2022-09-16 11:04:48,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-09-16 11:04:48,209 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:04:48,209 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 11:04:48,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 11:04:48,209 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:04:48,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:04:48,210 INFO L85 PathProgramCache]: Analyzing trace with hash 2037525082, now seen corresponding path program 1 times [2022-09-16 11:04:48,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:04:48,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005043087] [2022-09-16 11:04:48,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:04:48,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:04:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:04:48,435 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 11:04:48,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:04:48,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005043087] [2022-09-16 11:04:48,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005043087] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:04:48,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:04:48,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-09-16 11:04:48,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166828969] [2022-09-16 11:04:48,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:04:48,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-09-16 11:04:48,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:04:48,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-09-16 11:04:48,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-09-16 11:04:48,437 INFO L87 Difference]: Start difference. First operand 37111 states and 135252 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 11:04:48,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:04:48,875 INFO L93 Difference]: Finished difference Result 35804 states and 130828 transitions. [2022-09-16 11:04:48,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 11:04:48,876 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 11:04:48,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:04:49,359 INFO L225 Difference]: With dead ends: 35804 [2022-09-16 11:04:49,359 INFO L226 Difference]: Without dead ends: 35759 [2022-09-16 11:04:49,361 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 11:04:49,362 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 515 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 11:04:49,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 716 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 11:04:49,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35759 states. [2022-09-16 11:04:50,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35759 to 35745. [2022-09-16 11:04:50,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35745 states, 35017 states have (on average 3.734386155295999) internal successors, (130767), 35744 states have internal predecessors, (130767), 0 states have call successors, (0), 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 11:04:50,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35745 states to 35745 states and 130767 transitions. [2022-09-16 11:04:50,309 INFO L78 Accepts]: Start accepts. Automaton has 35745 states and 130767 transitions. Word has length 106 [2022-09-16 11:04:50,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:04:50,310 INFO L495 AbstractCegarLoop]: Abstraction has 35745 states and 130767 transitions. [2022-09-16 11:04:50,310 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 11:04:50,310 INFO L276 IsEmpty]: Start isEmpty. Operand 35745 states and 130767 transitions. [2022-09-16 11:04:50,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-09-16 11:04:50,310 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:04:50,310 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 11:04:50,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 11:04:50,311 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:04:50,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:04:50,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1320537517, now seen corresponding path program 1 times [2022-09-16 11:04:50,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:04:50,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524299441] [2022-09-16 11:04:50,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:04:50,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:04:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:04:50,413 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 11:04:50,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:04:50,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524299441] [2022-09-16 11:04:50,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524299441] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:04:50,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:04:50,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:04:50,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828184330] [2022-09-16 11:04:50,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:04:50,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:04:50,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:04:50,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:04:50,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:04:50,415 INFO L87 Difference]: Start difference. First operand 35745 states and 130767 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 11:04:51,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:04:51,130 INFO L93 Difference]: Finished difference Result 54121 states and 197703 transitions. [2022-09-16 11:04:51,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:04:51,131 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 11:04:51,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:04:51,392 INFO L225 Difference]: With dead ends: 54121 [2022-09-16 11:04:51,392 INFO L226 Difference]: Without dead ends: 54121 [2022-09-16 11:04:51,392 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 11:04:51,393 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 69 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:04:51,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 228 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:04:51,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54121 states. [2022-09-16 11:04:52,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54121 to 39197. [2022-09-16 11:04:52,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39197 states, 38469 states have (on average 3.9539629311913487) internal successors, (152105), 39196 states have internal predecessors, (152105), 0 states have call successors, (0), 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 11:04:52,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39197 states to 39197 states and 152105 transitions. [2022-09-16 11:04:52,903 INFO L78 Accepts]: Start accepts. Automaton has 39197 states and 152105 transitions. Word has length 112 [2022-09-16 11:04:52,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:04:52,904 INFO L495 AbstractCegarLoop]: Abstraction has 39197 states and 152105 transitions. [2022-09-16 11:04:52,904 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 11:04:52,905 INFO L276 IsEmpty]: Start isEmpty. Operand 39197 states and 152105 transitions. [2022-09-16 11:04:52,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-09-16 11:04:52,905 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:04:52,906 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 11:04:52,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 11:04:52,906 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:04:52,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:04:52,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1320537527, now seen corresponding path program 1 times [2022-09-16 11:04:52,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:04:52,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650475959] [2022-09-16 11:04:52,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:04:52,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:04:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:04:53,181 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 11:04:53,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:04:53,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650475959] [2022-09-16 11:04:53,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650475959] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:04:53,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80368320] [2022-09-16 11:04:53,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:04:53,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:04:53,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:04:53,183 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 11:04:53,184 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 11:04:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:04:53,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 33 conjunts are in the unsatisfiable core [2022-09-16 11:04:53,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:04:53,813 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 11:04:53,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:04:53,999 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 11:04:54,035 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 11:04:54,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:04:54,080 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 11:04:54,108 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 11:04:54,115 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 11:04:54,119 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 11:04:54,143 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:04:54,144 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 11:04:54,151 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:04:54,151 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 11:04:54,169 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 11:04:54,341 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 11:04:54,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80368320] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:04:54,342 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:04:54,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 32 [2022-09-16 11:04:54,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564086354] [2022-09-16 11:04:54,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:04:54,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-09-16 11:04:54,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:04:54,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-09-16 11:04:54,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=708, Unknown=4, NotChecked=228, Total=1056 [2022-09-16 11:04:54,344 INFO L87 Difference]: Start difference. First operand 39197 states and 152105 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 11:04:56,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:04:56,137 INFO L93 Difference]: Finished difference Result 60070 states and 220242 transitions. [2022-09-16 11:04:56,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 11:04:56,138 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 11:04:56,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:04:56,379 INFO L225 Difference]: With dead ends: 60070 [2022-09-16 11:04:56,379 INFO L226 Difference]: Without dead ends: 60070 [2022-09-16 11:04:56,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 202 SyntacticMatches, 7 SemanticMatches, 46 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=337, Invalid=1567, Unknown=4, NotChecked=348, Total=2256 [2022-09-16 11:04:56,381 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 927 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 2590 SdHoareTripleChecker+Invalid, 1971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 858 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 11:04:56,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 2590 Invalid, 1971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1074 Invalid, 0 Unknown, 858 Unchecked, 0.9s Time] [2022-09-16 11:04:56,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60070 states. [2022-09-16 11:04:57,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60070 to 39236. [2022-09-16 11:04:57,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39236 states, 38508 states have (on average 3.9519060974342994) internal successors, (152180), 39235 states have internal predecessors, (152180), 0 states have call successors, (0), 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 11:04:57,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39236 states to 39236 states and 152180 transitions. [2022-09-16 11:04:57,930 INFO L78 Accepts]: Start accepts. Automaton has 39236 states and 152180 transitions. Word has length 112 [2022-09-16 11:04:57,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:04:57,931 INFO L495 AbstractCegarLoop]: Abstraction has 39236 states and 152180 transitions. [2022-09-16 11:04:57,931 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 11:04:57,931 INFO L276 IsEmpty]: Start isEmpty. Operand 39236 states and 152180 transitions. [2022-09-16 11:04:57,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-09-16 11:04:57,932 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:04:57,932 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 11:04:57,950 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-09-16 11:04:58,133 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 11:04:58,134 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:04:58,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:04:58,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1320537524, now seen corresponding path program 1 times [2022-09-16 11:04:58,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:04:58,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743036533] [2022-09-16 11:04:58,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:04:58,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:04:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:04:58,377 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 11:04:58,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:04:58,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743036533] [2022-09-16 11:04:58,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743036533] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:04:58,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559759296] [2022-09-16 11:04:58,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:04:58,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:04:58,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:04:58,379 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 11:04:58,380 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 11:04:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:04:58,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 29 conjunts are in the unsatisfiable core [2022-09-16 11:04:58,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:04:58,877 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 11:04:59,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:04:59,279 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 11:04:59,342 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 11:04:59,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:04:59,392 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) 4294967296)) is different from false [2022-09-16 11:04:59,418 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|) 4294967296)) is different from false [2022-09-16 11:04:59,425 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|) 4294967296)) is different from false [2022-09-16 11:04:59,429 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|) 4294967296)) is different from false [2022-09-16 11:04:59,465 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:04:59,465 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 11:04:59,473 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:04:59,473 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 11:04:59,673 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 11:04:59,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559759296] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:04:59,674 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:04:59,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 34 [2022-09-16 11:04:59,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572261773] [2022-09-16 11:04:59,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:04:59,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-09-16 11:04:59,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:04:59,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-09-16 11:04:59,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=826, Unknown=4, NotChecked=244, Total=1190 [2022-09-16 11:04:59,675 INFO L87 Difference]: Start difference. First operand 39236 states and 152180 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 11:05:01,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:05:01,619 INFO L93 Difference]: Finished difference Result 60065 states and 220232 transitions. [2022-09-16 11:05:01,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 11:05:01,620 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 11:05:01,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:05:01,875 INFO L225 Difference]: With dead ends: 60065 [2022-09-16 11:05:01,876 INFO L226 Difference]: Without dead ends: 60065 [2022-09-16 11:05:01,876 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 11:05:01,877 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 1143 mSDsluCounter, 2866 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 2866 SdHoareTripleChecker+Invalid, 2327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1073 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 11:05:01,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 2866 Invalid, 2327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1210 Invalid, 0 Unknown, 1073 Unchecked, 0.7s Time] [2022-09-16 11:05:01,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60065 states. [2022-09-16 11:05:02,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60065 to 39236. [2022-09-16 11:05:03,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39236 states, 38508 states have (on average 3.951776254284824) internal successors, (152175), 39235 states have internal predecessors, (152175), 0 states have call successors, (0), 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 11:05:03,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39236 states to 39236 states and 152175 transitions. [2022-09-16 11:05:03,479 INFO L78 Accepts]: Start accepts. Automaton has 39236 states and 152175 transitions. Word has length 112 [2022-09-16 11:05:03,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:05:03,479 INFO L495 AbstractCegarLoop]: Abstraction has 39236 states and 152175 transitions. [2022-09-16 11:05:03,480 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 11:05:03,480 INFO L276 IsEmpty]: Start isEmpty. Operand 39236 states and 152175 transitions. [2022-09-16 11:05:03,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-09-16 11:05:03,480 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:05:03,480 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 11:05:03,502 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 11:05:03,693 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 11:05:03,693 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:05:03,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:05:03,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1320537523, now seen corresponding path program 1 times [2022-09-16 11:05:03,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:05:03,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54721346] [2022-09-16 11:05:03,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:03,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:05:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:04,062 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 11:05:04,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:05:04,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54721346] [2022-09-16 11:05:04,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54721346] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:05:04,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936369315] [2022-09-16 11:05:04,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:04,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:05:04,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:05:04,065 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 11:05:04,066 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 11:05:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:04,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 39 conjunts are in the unsatisfiable core [2022-09-16 11:05:04,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:05:04,508 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 11:05:04,608 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 11:05:04,824 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-16 11:05:04,825 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 11:05:04,914 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 11:05:05,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:05:05,005 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 11:05:05,058 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 11:05:05,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:05:05,224 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_259 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_259) c_~A~0.base) c_~A~0.offset) 2147483647)) is different from false [2022-09-16 11:05:05,270 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_259 (Array Int Int)) (v_ArrVal_258 (Array Int Int))) (<= (select (select (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) c_~A~0.base) c_~A~0.offset) 2147483647)) is different from false [2022-09-16 11:05:05,288 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_259 (Array Int Int)) (v_ArrVal_258 (Array Int Int))) (<= (select (select (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) c_~A~0.base) c_~A~0.offset) 2147483647)) is different from false [2022-09-16 11:05:05,598 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:05,598 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 25 treesize of output 26 [2022-09-16 11:05:05,607 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:05,608 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 64 treesize of output 62 [2022-09-16 11:05:05,614 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 48 treesize of output 44 [2022-09-16 11:05:05,879 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 22 treesize of output 20 [2022-09-16 11:05:06,222 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 10 treesize of output 8 [2022-09-16 11:05:06,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-09-16 11:05:06,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936369315] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:05:06,279 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:05:06,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 42 [2022-09-16 11:05:06,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028118363] [2022-09-16 11:05:06,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:05:06,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-09-16 11:05:06,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:05:06,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-09-16 11:05:06,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1412, Unknown=10, NotChecked=234, Total=1806 [2022-09-16 11:05:06,284 INFO L87 Difference]: Start difference. First operand 39236 states and 152175 transitions. Second operand has 43 states, 42 states have (on average 6.5) internal successors, (273), 43 states have internal predecessors, (273), 0 states have call successors, (0), 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 11:05:08,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:05:08,345 INFO L93 Difference]: Finished difference Result 41186 states and 157212 transitions. [2022-09-16 11:05:08,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 11:05:08,345 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 6.5) internal successors, (273), 43 states have internal predecessors, (273), 0 states have call successors, (0), 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 11:05:08,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:05:08,684 INFO L225 Difference]: With dead ends: 41186 [2022-09-16 11:05:08,685 INFO L226 Difference]: Without dead ends: 41186 [2022-09-16 11:05:08,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 196 SyntacticMatches, 3 SemanticMatches, 61 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=450, Invalid=3092, Unknown=10, NotChecked=354, Total=3906 [2022-09-16 11:05:08,686 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 580 mSDsluCounter, 3604 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 3547 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1243 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 11:05:08,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 3547 Invalid, 2127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 868 Invalid, 0 Unknown, 1243 Unchecked, 0.6s Time] [2022-09-16 11:05:08,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41186 states. [2022-09-16 11:05:09,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41186 to 39311. [2022-09-16 11:05:09,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39311 states, 38583 states have (on average 3.9467382007619936) internal successors, (152277), 39310 states have internal predecessors, (152277), 0 states have call successors, (0), 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 11:05:09,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39311 states to 39311 states and 152277 transitions. [2022-09-16 11:05:09,715 INFO L78 Accepts]: Start accepts. Automaton has 39311 states and 152277 transitions. Word has length 112 [2022-09-16 11:05:09,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:05:09,715 INFO L495 AbstractCegarLoop]: Abstraction has 39311 states and 152277 transitions. [2022-09-16 11:05:09,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 6.5) internal successors, (273), 43 states have internal predecessors, (273), 0 states have call successors, (0), 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 11:05:09,716 INFO L276 IsEmpty]: Start isEmpty. Operand 39311 states and 152277 transitions. [2022-09-16 11:05:09,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-09-16 11:05:09,717 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:05:09,717 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 11:05:09,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-09-16 11:05:09,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:05:09,931 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:05:09,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:05:09,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1320537522, now seen corresponding path program 1 times [2022-09-16 11:05:09,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:05:09,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770191313] [2022-09-16 11:05:09,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:09,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:05:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:10,297 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 11:05:10,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:05:10,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770191313] [2022-09-16 11:05:10,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770191313] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:05:10,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810823229] [2022-09-16 11:05:10,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:10,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:05:10,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:05:10,300 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:05:10,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-16 11:05:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:10,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 43 conjunts are in the unsatisfiable core [2022-09-16 11:05:10,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:05:10,687 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 11:05:11,063 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 11:05:11,355 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-16 11:05:11,355 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 11:05:11,442 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 11:05:11,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:05:11,563 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 11:05:11,603 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 11:05:11,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:05:11,695 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_296 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_296) c_~A~0.base) c_~A~0.offset)))) is different from false [2022-09-16 11:05:11,731 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_296 (Array Int Int)) (v_ArrVal_295 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_295) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_296) c_~A~0.base) c_~A~0.offset)))) is different from false [2022-09-16 11:05:11,743 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_296 (Array Int Int)) (v_ArrVal_295 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.base| v_ArrVal_295) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_296) c_~A~0.base) c_~A~0.offset)))) is different from false [2022-09-16 11:05:12,372 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:12,372 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 27 treesize of output 28 [2022-09-16 11:05:12,380 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:12,381 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 142 treesize of output 136 [2022-09-16 11:05:12,385 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 122 treesize of output 118 [2022-09-16 11:05:12,389 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 118 treesize of output 110 [2022-09-16 11:05:12,626 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 10 treesize of output 8 [2022-09-16 11:05:12,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-09-16 11:05:12,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810823229] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:05:12,679 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:05:12,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 41 [2022-09-16 11:05:12,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239815342] [2022-09-16 11:05:12,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:05:12,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-09-16 11:05:12,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:05:12,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-09-16 11:05:12,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1317, Unknown=10, NotChecked=228, Total=1722 [2022-09-16 11:05:12,682 INFO L87 Difference]: Start difference. First operand 39311 states and 152277 transitions. Second operand has 42 states, 41 states have (on average 6.585365853658536) internal successors, (270), 42 states have internal predecessors, (270), 0 states have call successors, (0), 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 11:05:14,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:05:14,057 INFO L93 Difference]: Finished difference Result 41233 states and 157290 transitions. [2022-09-16 11:05:14,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 11:05:14,058 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 6.585365853658536) internal successors, (270), 42 states have internal predecessors, (270), 0 states have call successors, (0), 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 11:05:14,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:05:14,220 INFO L225 Difference]: With dead ends: 41233 [2022-09-16 11:05:14,220 INFO L226 Difference]: Without dead ends: 41233 [2022-09-16 11:05:14,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 195 SyntacticMatches, 6 SemanticMatches, 57 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 883 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=427, Invalid=2655, Unknown=10, NotChecked=330, Total=3422 [2022-09-16 11:05:14,221 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 494 mSDsluCounter, 3574 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 3458 SdHoareTripleChecker+Invalid, 2200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1254 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 11:05:14,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 3458 Invalid, 2200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 929 Invalid, 0 Unknown, 1254 Unchecked, 0.5s Time] [2022-09-16 11:05:14,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41233 states. [2022-09-16 11:05:15,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41233 to 39350. [2022-09-16 11:05:15,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39350 states, 38622 states have (on average 3.9445652736782146) internal successors, (152347), 39349 states have internal predecessors, (152347), 0 states have call successors, (0), 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 11:05:15,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39350 states to 39350 states and 152347 transitions. [2022-09-16 11:05:15,605 INFO L78 Accepts]: Start accepts. Automaton has 39350 states and 152347 transitions. Word has length 112 [2022-09-16 11:05:15,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:05:15,605 INFO L495 AbstractCegarLoop]: Abstraction has 39350 states and 152347 transitions. [2022-09-16 11:05:15,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 6.585365853658536) internal successors, (270), 42 states have internal predecessors, (270), 0 states have call successors, (0), 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 11:05:15,605 INFO L276 IsEmpty]: Start isEmpty. Operand 39350 states and 152347 transitions. [2022-09-16 11:05:15,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-09-16 11:05:15,606 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:05:15,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:05:15,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-09-16 11:05:15,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:05:15,812 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:05:15,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:05:15,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1768820465, now seen corresponding path program 1 times [2022-09-16 11:05:15,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:05:15,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608800714] [2022-09-16 11:05:15,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:15,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:05:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:15,860 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 11:05:15,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:05:15,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608800714] [2022-09-16 11:05:15,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608800714] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:05:15,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:05:15,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:05:15,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713830077] [2022-09-16 11:05:15,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:05:15,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:05:15,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:05:15,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:05:15,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:05:15,862 INFO L87 Difference]: Start difference. First operand 39350 states and 152347 transitions. Second operand has 4 states, 3 states have (on average 38.333333333333336) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:05:16,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:05:16,462 INFO L93 Difference]: Finished difference Result 62904 states and 229805 transitions. [2022-09-16 11:05:16,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:05:16,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 38.333333333333336) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-09-16 11:05:16,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:05:17,080 INFO L225 Difference]: With dead ends: 62904 [2022-09-16 11:05:17,080 INFO L226 Difference]: Without dead ends: 62904 [2022-09-16 11:05:17,080 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 11:05:17,080 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 183 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 11:05:17,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 628 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 11:05:17,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62904 states. [2022-09-16 11:05:18,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62904 to 46254. [2022-09-16 11:05:18,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46254 states, 45526 states have (on average 3.9062294073716117) internal successors, (177835), 46253 states have internal predecessors, (177835), 0 states have call successors, (0), 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 11:05:18,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46254 states to 46254 states and 177835 transitions. [2022-09-16 11:05:18,734 INFO L78 Accepts]: Start accepts. Automaton has 46254 states and 177835 transitions. Word has length 115 [2022-09-16 11:05:18,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:05:18,734 INFO L495 AbstractCegarLoop]: Abstraction has 46254 states and 177835 transitions. [2022-09-16 11:05:18,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 38.333333333333336) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:05:18,734 INFO L276 IsEmpty]: Start isEmpty. Operand 46254 states and 177835 transitions. [2022-09-16 11:05:18,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-09-16 11:05:18,735 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:05:18,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:05:18,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-09-16 11:05:18,735 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:05:18,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:05:18,736 INFO L85 PathProgramCache]: Analyzing trace with hash 610313128, now seen corresponding path program 1 times [2022-09-16 11:05:18,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:05:18,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309335014] [2022-09-16 11:05:18,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:18,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:05:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:18,994 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 11:05:18,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:05:18,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309335014] [2022-09-16 11:05:18,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309335014] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:05:18,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556638756] [2022-09-16 11:05:18,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:18,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:05:18,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:05:19,000 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:05:19,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-16 11:05:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:19,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 35 conjunts are in the unsatisfiable core [2022-09-16 11:05:19,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:05:19,615 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 11:05:19,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:05:19,841 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 11:05:19,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:05:19,927 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 11:05:19,938 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 11:05:19,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:05:19,957 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_352 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_352) c_~B~0.base) (+ (* |c_thread1Thread1of1ForFork1_~i~0#1| 4) c_~B~0.offset)) 9223372039002259456))) is different from false [2022-09-16 11:05:19,972 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_352 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_352) c_~B~0.base) c_~B~0.offset) 9223372039002259456))) is different from false [2022-09-16 11:05:19,976 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_351 (Array Int Int)) (v_ArrVal_352 (Array Int Int))) (< 0 (+ 9223372039002259456 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_351) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_352) c_~B~0.base) c_~B~0.offset)))) is different from false [2022-09-16 11:05:20,012 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_351 (Array Int Int)) (v_ArrVal_352 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_351) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_352) |c_ULTIMATE.start_main_#t~ret19#1.base|) |c_ULTIMATE.start_main_#t~ret19#1.offset|) 9223372039002259456))) is different from false [2022-09-16 11:05:20,017 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_351 (Array Int Int)) (v_ArrVal_352 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_351) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_352) |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 11:05:20,022 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_351 (Array Int Int)) (v_ArrVal_352 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_351) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_352) |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 11:05:20,062 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:20,063 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 27 treesize of output 28 [2022-09-16 11:05:20,069 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:20,069 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 72 treesize of output 70 [2022-09-16 11:05:20,073 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 28 treesize of output 26 [2022-09-16 11:05:20,076 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 54 treesize of output 50 [2022-09-16 11:05:20,361 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 11:05:20,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556638756] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:05:20,361 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:05:20,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14] total 38 [2022-09-16 11:05:20,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055502558] [2022-09-16 11:05:20,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:05:20,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-09-16 11:05:20,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:05:20,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-09-16 11:05:20,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=937, Unknown=6, NotChecked=402, Total=1482 [2022-09-16 11:05:20,363 INFO L87 Difference]: Start difference. First operand 46254 states and 177835 transitions. Second operand has 39 states, 38 states have (on average 6.631578947368421) internal successors, (252), 39 states have internal predecessors, (252), 0 states have call successors, (0), 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 11:05:22,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:05:22,624 INFO L93 Difference]: Finished difference Result 77274 states and 281269 transitions. [2022-09-16 11:05:22,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 11:05:22,625 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 6.631578947368421) internal successors, (252), 39 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-09-16 11:05:22,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:05:22,971 INFO L225 Difference]: With dead ends: 77274 [2022-09-16 11:05:22,972 INFO L226 Difference]: Without dead ends: 77274 [2022-09-16 11:05:22,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 209 SyntacticMatches, 8 SemanticMatches, 52 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=390, Invalid=1884, Unknown=6, NotChecked=582, Total=2862 [2022-09-16 11:05:22,973 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 1693 mSDsluCounter, 3119 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1693 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 3133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1701 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 11:05:22,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1693 Valid, 3134 Invalid, 3133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1372 Invalid, 0 Unknown, 1701 Unchecked, 0.8s Time] [2022-09-16 11:05:23,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77274 states. [2022-09-16 11:05:24,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77274 to 46557. [2022-09-16 11:05:24,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46557 states, 45829 states have (on average 3.9089877588426543) internal successors, (179145), 46556 states have internal predecessors, (179145), 0 states have call successors, (0), 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 11:05:24,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46557 states to 46557 states and 179145 transitions. [2022-09-16 11:05:24,735 INFO L78 Accepts]: Start accepts. Automaton has 46557 states and 179145 transitions. Word has length 117 [2022-09-16 11:05:24,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:05:24,736 INFO L495 AbstractCegarLoop]: Abstraction has 46557 states and 179145 transitions. [2022-09-16 11:05:24,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 6.631578947368421) internal successors, (252), 39 states have internal predecessors, (252), 0 states have call successors, (0), 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 11:05:24,736 INFO L276 IsEmpty]: Start isEmpty. Operand 46557 states and 179145 transitions. [2022-09-16 11:05:24,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-09-16 11:05:24,736 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:05:24,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:05:24,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-09-16 11:05:24,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-09-16 11:05:24,938 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:05:24,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:05:24,939 INFO L85 PathProgramCache]: Analyzing trace with hash 610313131, now seen corresponding path program 1 times [2022-09-16 11:05:24,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:05:24,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988046422] [2022-09-16 11:05:24,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:24,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:05:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:25,198 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 11:05:25,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:05:25,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988046422] [2022-09-16 11:05:25,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988046422] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:05:25,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117206985] [2022-09-16 11:05:25,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:25,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:05:25,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:05:25,200 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:05:25,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-09-16 11:05:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:25,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 35 conjunts are in the unsatisfiable core [2022-09-16 11:05:25,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:05:25,803 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 11:05:26,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:05:26,006 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 11:05:26,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:05:26,341 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 11:05:26,353 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 11:05:26,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:05:26,372 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_392 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_392) c_~B~0.base) (+ (* |c_thread1Thread1of1ForFork1_~i~0#1| 4) c_~B~0.offset)) 4294967296)) is different from false [2022-09-16 11:05:26,386 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_392 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_392) c_~B~0.base) c_~B~0.offset) 4294967296)) is different from false [2022-09-16 11:05:26,391 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_391 (Array Int Int)) (v_ArrVal_392 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_391) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_392) c_~B~0.base) c_~B~0.offset) 4294967296)) is different from false [2022-09-16 11:05:26,414 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_391 (Array Int Int)) (v_ArrVal_392 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_391) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_392) |c_ULTIMATE.start_main_#t~ret19#1.base|) |c_ULTIMATE.start_main_#t~ret19#1.offset|) 4294967296)) is different from false [2022-09-16 11:05:26,420 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_391 (Array Int Int)) (v_ArrVal_392 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_391) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_392) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) 4294967296)) is different from false [2022-09-16 11:05:26,425 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_391 (Array Int Int)) (v_ArrVal_392 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_391) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_392) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) 4294967296)) is different from false [2022-09-16 11:05:26,445 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:26,445 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 25 treesize of output 26 [2022-09-16 11:05:26,453 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:26,453 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 126 treesize of output 120 [2022-09-16 11:05:26,456 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 106 treesize of output 102 [2022-09-16 11:05:26,459 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 102 treesize of output 94 [2022-09-16 11:05:26,743 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 11:05:26,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117206985] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:05:26,744 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:05:26,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14] total 38 [2022-09-16 11:05:26,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022061275] [2022-09-16 11:05:26,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:05:26,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-09-16 11:05:26,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:05:26,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-09-16 11:05:26,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=937, Unknown=6, NotChecked=402, Total=1482 [2022-09-16 11:05:26,746 INFO L87 Difference]: Start difference. First operand 46557 states and 179145 transitions. Second operand has 39 states, 38 states have (on average 6.631578947368421) internal successors, (252), 39 states have internal predecessors, (252), 0 states have call successors, (0), 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 11:05:28,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:05:28,477 INFO L93 Difference]: Finished difference Result 77173 states and 280967 transitions. [2022-09-16 11:05:28,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 11:05:28,478 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 6.631578947368421) internal successors, (252), 39 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-09-16 11:05:28,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:05:28,807 INFO L225 Difference]: With dead ends: 77173 [2022-09-16 11:05:28,807 INFO L226 Difference]: Without dead ends: 77173 [2022-09-16 11:05:28,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 209 SyntacticMatches, 8 SemanticMatches, 52 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=390, Invalid=1884, Unknown=6, NotChecked=582, Total=2862 [2022-09-16 11:05:28,808 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 1720 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 2437 SdHoareTripleChecker+Invalid, 3176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2106 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 11:05:28,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1720 Valid, 2437 Invalid, 3176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1007 Invalid, 0 Unknown, 2106 Unchecked, 0.6s Time] [2022-09-16 11:05:28,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77173 states. [2022-09-16 11:05:30,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77173 to 46557. [2022-09-16 11:05:30,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46557 states, 45829 states have (on average 3.9067839141155165) internal successors, (179044), 46556 states have internal predecessors, (179044), 0 states have call successors, (0), 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 11:05:30,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46557 states to 46557 states and 179044 transitions. [2022-09-16 11:05:30,525 INFO L78 Accepts]: Start accepts. Automaton has 46557 states and 179044 transitions. Word has length 117 [2022-09-16 11:05:30,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:05:30,525 INFO L495 AbstractCegarLoop]: Abstraction has 46557 states and 179044 transitions. [2022-09-16 11:05:30,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 6.631578947368421) internal successors, (252), 39 states have internal predecessors, (252), 0 states have call successors, (0), 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 11:05:30,525 INFO L276 IsEmpty]: Start isEmpty. Operand 46557 states and 179044 transitions. [2022-09-16 11:05:30,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-09-16 11:05:30,526 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:05:30,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:05:30,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-09-16 11:05:30,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-09-16 11:05:30,727 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:05:30,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:05:30,727 INFO L85 PathProgramCache]: Analyzing trace with hash 610313132, now seen corresponding path program 1 times [2022-09-16 11:05:30,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:05:30,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24522173] [2022-09-16 11:05:30,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:30,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:05:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:31,897 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 11:05:31,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:05:31,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24522173] [2022-09-16 11:05:31,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24522173] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:05:31,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969046376] [2022-09-16 11:05:31,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:31,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:05:31,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:05:31,900 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:05:31,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-09-16 11:05:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:32,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 42 conjunts are in the unsatisfiable core [2022-09-16 11:05:32,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:05:32,395 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 11:05:32,512 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 11:05:32,804 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-16 11:05:32,804 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 11:05:32,909 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 11:05:33,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:05:33,049 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 11:05:33,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:05:33,136 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 11:05:33,163 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 11:05:33,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:05:33,290 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_434 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_434) c_~A~0.base) (+ (* |c_thread1Thread1of1ForFork1_~i~0#1| 4) c_~A~0.offset)) 2147483648)) is different from false [2022-09-16 11:05:33,304 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_434 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_434) c_~A~0.base) c_~A~0.offset) 2147483648)) is different from false [2022-09-16 11:05:33,310 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_434 (Array Int Int)) (v_ArrVal_433 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_433) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_434) c_~A~0.base) c_~A~0.offset) 2147483648)) is different from false [2022-09-16 11:05:33,348 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_432 (Array Int Int)) (v_ArrVal_434 (Array Int Int)) (v_ArrVal_433 (Array Int Int))) (< (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_432) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_433) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_434) c_~A~0.base) c_~A~0.offset) 2147483648)) is different from false [2022-09-16 11:05:33,376 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_432 (Array Int Int)) (v_ArrVal_434 (Array Int Int)) (v_ArrVal_433 (Array Int Int))) (< (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.base| v_ArrVal_432) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_433) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_434) c_~A~0.base) c_~A~0.offset) 2147483648)) is different from false [2022-09-16 11:05:33,720 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:33,720 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 28 treesize of output 29 [2022-09-16 11:05:33,734 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:33,734 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 978 treesize of output 948 [2022-09-16 11:05:33,750 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 934 treesize of output 918 [2022-09-16 11:05:33,761 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 918 treesize of output 886 [2022-09-16 11:05:33,975 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 886 treesize of output 822 [2022-09-16 11:05:37,643 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:37,643 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 29 treesize of output 34 [2022-09-16 11:05:37,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-09-16 11:05:37,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969046376] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:05:37,771 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:05:37,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 17, 17] total 53 [2022-09-16 11:05:37,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558543633] [2022-09-16 11:05:37,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:05:37,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-09-16 11:05:37,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:05:37,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-09-16 11:05:37,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=2179, Unknown=14, NotChecked=490, Total=2862 [2022-09-16 11:05:37,773 INFO L87 Difference]: Start difference. First operand 46557 states and 179044 transitions. Second operand has 54 states, 53 states have (on average 5.528301886792453) internal successors, (293), 54 states have internal predecessors, (293), 0 states have call successors, (0), 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 11:05:41,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:05:41,029 INFO L93 Difference]: Finished difference Result 52061 states and 195031 transitions. [2022-09-16 11:05:41,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-16 11:05:41,030 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 5.528301886792453) internal successors, (293), 54 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-09-16 11:05:41,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:05:41,244 INFO L225 Difference]: With dead ends: 52061 [2022-09-16 11:05:41,244 INFO L226 Difference]: Without dead ends: 52061 [2022-09-16 11:05:41,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 203 SyntacticMatches, 6 SemanticMatches, 76 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 1206 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=662, Invalid=4600, Unknown=14, NotChecked=730, Total=6006 [2022-09-16 11:05:41,246 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 1073 mSDsluCounter, 4454 mSDsCounter, 0 mSdLazyCounter, 1614 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 4355 SdHoareTripleChecker+Invalid, 3770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2103 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 11:05:41,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 4355 Invalid, 3770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1614 Invalid, 0 Unknown, 2103 Unchecked, 0.9s Time] [2022-09-16 11:05:41,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52061 states. [2022-09-16 11:05:42,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52061 to 47163. [2022-09-16 11:05:42,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47163 states, 46435 states have (on average 3.907763540432863) internal successors, (181457), 47162 states have internal predecessors, (181457), 0 states have call successors, (0), 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 11:05:42,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47163 states to 47163 states and 181457 transitions. [2022-09-16 11:05:42,404 INFO L78 Accepts]: Start accepts. Automaton has 47163 states and 181457 transitions. Word has length 117 [2022-09-16 11:05:42,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:05:42,404 INFO L495 AbstractCegarLoop]: Abstraction has 47163 states and 181457 transitions. [2022-09-16 11:05:42,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 5.528301886792453) internal successors, (293), 54 states have internal predecessors, (293), 0 states have call successors, (0), 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 11:05:42,404 INFO L276 IsEmpty]: Start isEmpty. Operand 47163 states and 181457 transitions. [2022-09-16 11:05:42,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-09-16 11:05:42,405 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:05:42,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:05:42,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-09-16 11:05:42,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-09-16 11:05:42,606 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:05:42,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:05:42,606 INFO L85 PathProgramCache]: Analyzing trace with hash 610313133, now seen corresponding path program 1 times [2022-09-16 11:05:42,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:05:42,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878564136] [2022-09-16 11:05:42,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:42,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:05:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:43,353 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 11:05:43,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:05:43,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878564136] [2022-09-16 11:05:43,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878564136] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:05:43,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428283040] [2022-09-16 11:05:43,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:43,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:05:43,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:05:43,355 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:05:43,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-09-16 11:05:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:43,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 41 conjunts are in the unsatisfiable core [2022-09-16 11:05:43,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:05:43,784 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 11:05:43,903 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 11:05:44,171 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-16 11:05:44,171 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 11:05:44,264 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 11:05:44,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:05:44,375 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 11:05:44,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:05:44,458 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 11:05:44,486 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 11:05:44,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:05:44,548 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_476 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_476) c_~A~0.base) (+ (* |c_thread1Thread1of1ForFork1_~i~0#1| 4) c_~A~0.offset))))) is different from false [2022-09-16 11:05:44,565 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_476 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_476) c_~A~0.base) c_~A~0.offset) 2147483649))) is different from false [2022-09-16 11:05:44,571 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_476 (Array Int Int)) (v_ArrVal_475 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_475) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_476) c_~A~0.base) c_~A~0.offset)))) is different from false [2022-09-16 11:05:44,613 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_474 (Array Int Int)) (v_ArrVal_476 (Array Int Int)) (v_ArrVal_475 (Array Int Int))) (< 0 (+ (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_474) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_475) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_476) c_~A~0.base) c_~A~0.offset) 2147483649))) is different from false [2022-09-16 11:05:44,627 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_474 (Array Int Int)) (v_ArrVal_476 (Array Int Int)) (v_ArrVal_475 (Array Int Int))) (< 0 (+ (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.base| v_ArrVal_474) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_475) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_476) c_~A~0.base) c_~A~0.offset) 2147483649))) is different from false [2022-09-16 11:05:44,953 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:44,953 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 30 treesize of output 31 [2022-09-16 11:05:44,962 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:44,963 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 554 treesize of output 540 [2022-09-16 11:05:44,974 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 526 treesize of output 510 [2022-09-16 11:05:44,980 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 510 treesize of output 478 [2022-09-16 11:05:44,988 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 243 treesize of output 235 [2022-09-16 11:05:45,353 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:45,353 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 29 treesize of output 34 [2022-09-16 11:05:45,479 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-09-16 11:05:45,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428283040] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:05:45,479 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:05:45,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 17, 17] total 53 [2022-09-16 11:05:45,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049919276] [2022-09-16 11:05:45,480 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:05:45,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-09-16 11:05:45,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:05:45,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-09-16 11:05:45,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=2178, Unknown=15, NotChecked=490, Total=2862 [2022-09-16 11:05:45,482 INFO L87 Difference]: Start difference. First operand 47163 states and 181457 transitions. Second operand has 54 states, 53 states have (on average 5.528301886792453) internal successors, (293), 54 states have internal predecessors, (293), 0 states have call successors, (0), 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 11:05:52,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:05:52,861 INFO L93 Difference]: Finished difference Result 54887 states and 204601 transitions. [2022-09-16 11:05:52,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-09-16 11:05:52,862 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 5.528301886792453) internal successors, (293), 54 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-09-16 11:05:52,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:05:53,085 INFO L225 Difference]: With dead ends: 54887 [2022-09-16 11:05:53,085 INFO L226 Difference]: Without dead ends: 54887 [2022-09-16 11:05:53,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 205 SyntacticMatches, 11 SemanticMatches, 111 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 3267 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=1572, Invalid=9989, Unknown=15, NotChecked=1080, Total=12656 [2022-09-16 11:05:53,088 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 2337 mSDsluCounter, 3756 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2337 SdHoareTripleChecker+Valid, 3681 SdHoareTripleChecker+Invalid, 3857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2454 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 11:05:53,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2337 Valid, 3681 Invalid, 3857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1256 Invalid, 0 Unknown, 2454 Unchecked, 0.9s Time] [2022-09-16 11:05:53,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54887 states. [2022-09-16 11:05:53,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54887 to 47563. [2022-09-16 11:05:54,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47563 states, 46835 states have (on average 3.9085085940002133) internal successors, (183055), 47562 states have internal predecessors, (183055), 0 states have call successors, (0), 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 11:05:54,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47563 states to 47563 states and 183055 transitions. [2022-09-16 11:05:54,629 INFO L78 Accepts]: Start accepts. Automaton has 47563 states and 183055 transitions. Word has length 117 [2022-09-16 11:05:54,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:05:54,630 INFO L495 AbstractCegarLoop]: Abstraction has 47563 states and 183055 transitions. [2022-09-16 11:05:54,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 5.528301886792453) internal successors, (293), 54 states have internal predecessors, (293), 0 states have call successors, (0), 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 11:05:54,630 INFO L276 IsEmpty]: Start isEmpty. Operand 47563 states and 183055 transitions. [2022-09-16 11:05:54,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-09-16 11:05:54,631 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:05:54,631 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:05:54,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-09-16 11:05:54,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-09-16 11:05:54,832 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:05:54,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:05:54,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1739841795, now seen corresponding path program 1 times [2022-09-16 11:05:54,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:05:54,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035273223] [2022-09-16 11:05:54,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:54,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:05:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:55,256 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 11:05:55,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:05:55,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035273223] [2022-09-16 11:05:55,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035273223] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:05:55,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243552657] [2022-09-16 11:05:55,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:05:55,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:05:55,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:05:55,258 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:05:55,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-09-16 11:05:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:05:55,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 41 conjunts are in the unsatisfiable core [2022-09-16 11:05:55,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:05:55,673 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 11:05:55,774 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 11:05:56,331 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-16 11:05:56,331 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 11:05:56,418 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 11:05:56,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:05:56,556 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 11:05:56,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:05:56,652 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 11:05:56,679 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 11:05:56,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:05:56,735 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_518 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_518) c_~A~0.base) (+ (* |c_thread1Thread1of1ForFork1_~i~0#1| 4) c_~A~0.offset))))) is different from false [2022-09-16 11:05:56,748 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_518 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_518) c_~A~0.base) c_~A~0.offset)))) is different from false [2022-09-16 11:05:56,752 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_517 (Array Int Int)) (v_ArrVal_518 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_517) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_518) c_~A~0.base) c_~A~0.offset)))) is different from false [2022-09-16 11:05:56,792 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_517 (Array Int Int)) (v_ArrVal_516 (Array Int Int)) (v_ArrVal_518 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_516) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_517) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_518) c_~A~0.base) c_~A~0.offset)))) is different from false [2022-09-16 11:05:56,806 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_517 (Array Int Int)) (v_ArrVal_516 (Array Int Int)) (v_ArrVal_518 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.base| v_ArrVal_516) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_517) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_518) c_~A~0.base) c_~A~0.offset)))) is different from false [2022-09-16 11:05:57,063 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:57,063 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 30 treesize of output 31 [2022-09-16 11:05:57,072 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:57,072 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 278 treesize of output 272 [2022-09-16 11:05:57,076 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 258 treesize of output 242 [2022-09-16 11:05:57,080 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 125 treesize of output 117 [2022-09-16 11:05:57,084 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 234 treesize of output 230 [2022-09-16 11:05:57,434 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:05:57,435 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 29 treesize of output 34 [2022-09-16 11:05:57,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-09-16 11:05:57,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243552657] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:05:57,551 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:05:57,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 48 [2022-09-16 11:05:57,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095139283] [2022-09-16 11:05:57,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:05:57,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-09-16 11:05:57,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:05:57,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-09-16 11:05:57,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=1735, Unknown=12, NotChecked=440, Total=2352 [2022-09-16 11:05:57,552 INFO L87 Difference]: Start difference. First operand 47563 states and 183055 transitions. Second operand has 49 states, 48 states have (on average 6.083333333333333) internal successors, (292), 49 states have internal predecessors, (292), 0 states have call successors, (0), 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 11:05:59,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:05:59,374 INFO L93 Difference]: Finished difference Result 52360 states and 196228 transitions. [2022-09-16 11:05:59,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-16 11:05:59,374 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 6.083333333333333) internal successors, (292), 49 states have internal predecessors, (292), 0 states have call successors, (0), 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 118 [2022-09-16 11:05:59,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:05:59,584 INFO L225 Difference]: With dead ends: 52360 [2022-09-16 11:05:59,584 INFO L226 Difference]: Without dead ends: 52360 [2022-09-16 11:05:59,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 205 SyntacticMatches, 6 SemanticMatches, 64 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=377, Invalid=3278, Unknown=25, NotChecked=610, Total=4290 [2022-09-16 11:05:59,586 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 661 mSDsluCounter, 4546 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 4499 SdHoareTripleChecker+Invalid, 2828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1728 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 11:05:59,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 4499 Invalid, 2828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1075 Invalid, 0 Unknown, 1728 Unchecked, 0.6s Time] [2022-09-16 11:05:59,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52360 states. [2022-09-16 11:06:00,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52360 to 47163. [2022-09-16 11:06:00,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47163 states, 46435 states have (on average 3.9034133735328953) internal successors, (181255), 47162 states have internal predecessors, (181255), 0 states have call successors, (0), 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 11:06:01,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47163 states to 47163 states and 181255 transitions. [2022-09-16 11:06:01,033 INFO L78 Accepts]: Start accepts. Automaton has 47163 states and 181255 transitions. Word has length 118 [2022-09-16 11:06:01,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:06:01,034 INFO L495 AbstractCegarLoop]: Abstraction has 47163 states and 181255 transitions. [2022-09-16 11:06:01,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 6.083333333333333) internal successors, (292), 49 states have internal predecessors, (292), 0 states have call successors, (0), 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 11:06:01,034 INFO L276 IsEmpty]: Start isEmpty. Operand 47163 states and 181255 transitions. [2022-09-16 11:06:01,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-09-16 11:06:01,035 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:06:01,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:06:01,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-09-16 11:06:01,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-09-16 11:06:01,235 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:06:01,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:06:01,236 INFO L85 PathProgramCache]: Analyzing trace with hash 559929913, now seen corresponding path program 1 times [2022-09-16 11:06:01,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:06:01,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148286975] [2022-09-16 11:06:01,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:01,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:06:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:01,403 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 11:06:01,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:06:01,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148286975] [2022-09-16 11:06:01,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148286975] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:06:01,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530755086] [2022-09-16 11:06:01,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:01,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:01,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:06:01,408 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:06:01,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-09-16 11:06:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:02,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 13 conjunts are in the unsatisfiable core [2022-09-16 11:06:02,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:06:02,317 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 11:06:02,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:06:02,530 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 11:06:02,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530755086] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:06:02,530 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:06:02,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 28 [2022-09-16 11:06:02,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266025997] [2022-09-16 11:06:02,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:06:02,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-09-16 11:06:02,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:06:02,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-09-16 11:06:02,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756 [2022-09-16 11:06:02,532 INFO L87 Difference]: Start difference. First operand 47163 states and 181255 transitions. Second operand has 28 states, 28 states have (on average 8.571428571428571) internal successors, (240), 28 states have internal predecessors, (240), 0 states have call successors, (0), 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 11:06:04,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:06:04,297 INFO L93 Difference]: Finished difference Result 69427 states and 261911 transitions. [2022-09-16 11:06:04,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-09-16 11:06:04,297 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 8.571428571428571) internal successors, (240), 28 states have internal predecessors, (240), 0 states have call successors, (0), 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 118 [2022-09-16 11:06:04,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:06:04,600 INFO L225 Difference]: With dead ends: 69427 [2022-09-16 11:06:04,600 INFO L226 Difference]: Without dead ends: 69247 [2022-09-16 11:06:04,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 218 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=599, Invalid=2053, Unknown=0, NotChecked=0, Total=2652 [2022-09-16 11:06:04,601 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 3068 mSDsluCounter, 1992 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3068 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 11:06:04,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3068 Valid, 1739 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 11:06:04,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69247 states. [2022-09-16 11:06:06,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69247 to 51098. [2022-09-16 11:06:06,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51098 states, 50370 states have (on average 3.8952551121699424) internal successors, (196204), 51097 states have internal predecessors, (196204), 0 states have call successors, (0), 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 11:06:06,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51098 states to 51098 states and 196204 transitions. [2022-09-16 11:06:06,406 INFO L78 Accepts]: Start accepts. Automaton has 51098 states and 196204 transitions. Word has length 118 [2022-09-16 11:06:06,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:06:06,406 INFO L495 AbstractCegarLoop]: Abstraction has 51098 states and 196204 transitions. [2022-09-16 11:06:06,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 8.571428571428571) internal successors, (240), 28 states have internal predecessors, (240), 0 states have call successors, (0), 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 11:06:06,406 INFO L276 IsEmpty]: Start isEmpty. Operand 51098 states and 196204 transitions. [2022-09-16 11:06:06,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-09-16 11:06:06,407 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:06:06,408 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:06:06,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-09-16 11:06:06,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:06,629 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:06:06,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:06:06,630 INFO L85 PathProgramCache]: Analyzing trace with hash 574496005, now seen corresponding path program 1 times [2022-09-16 11:06:06,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:06:06,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233446481] [2022-09-16 11:06:06,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:06,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:06:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:06,739 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:06:06,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:06:06,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233446481] [2022-09-16 11:06:06,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233446481] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:06:06,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678135388] [2022-09-16 11:06:06,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:06,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:06,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:06:06,741 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:06:06,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-09-16 11:06:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:07,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-16 11:06:07,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:06:07,706 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:06:07,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:06:07,892 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:06:07,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678135388] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:06:07,892 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:06:07,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-09-16 11:06:07,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530848237] [2022-09-16 11:06:07,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:06:07,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-09-16 11:06:07,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:06:07,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-09-16 11:06:07,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2022-09-16 11:06:07,894 INFO L87 Difference]: Start difference. First operand 51098 states and 196204 transitions. Second operand has 24 states, 24 states have (on average 7.458333333333333) internal successors, (179), 24 states have internal predecessors, (179), 0 states have call successors, (0), 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 11:06:09,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:06:09,517 INFO L93 Difference]: Finished difference Result 64143 states and 238151 transitions. [2022-09-16 11:06:09,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-09-16 11:06:09,518 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.458333333333333) internal successors, (179), 24 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-09-16 11:06:09,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:06:09,781 INFO L225 Difference]: With dead ends: 64143 [2022-09-16 11:06:09,781 INFO L226 Difference]: Without dead ends: 63303 [2022-09-16 11:06:09,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 225 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=562, Invalid=1694, Unknown=0, NotChecked=0, Total=2256 [2022-09-16 11:06:09,782 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 2879 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2879 SdHoareTripleChecker+Valid, 2498 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 11:06:09,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2879 Valid, 2498 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 11:06:09,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63303 states. [2022-09-16 11:06:11,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63303 to 51611. [2022-09-16 11:06:11,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51611 states, 50883 states have (on average 3.88526619892695) internal successors, (197694), 51610 states have internal predecessors, (197694), 0 states have call successors, (0), 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 11:06:11,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51611 states to 51611 states and 197694 transitions. [2022-09-16 11:06:11,816 INFO L78 Accepts]: Start accepts. Automaton has 51611 states and 197694 transitions. Word has length 120 [2022-09-16 11:06:11,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:06:11,817 INFO L495 AbstractCegarLoop]: Abstraction has 51611 states and 197694 transitions. [2022-09-16 11:06:11,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.458333333333333) internal successors, (179), 24 states have internal predecessors, (179), 0 states have call successors, (0), 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 11:06:11,817 INFO L276 IsEmpty]: Start isEmpty. Operand 51611 states and 197694 transitions. [2022-09-16 11:06:11,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-09-16 11:06:11,818 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:06:11,819 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:06:11,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-09-16 11:06:12,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:12,043 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:06:12,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:06:12,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1145823910, now seen corresponding path program 2 times [2022-09-16 11:06:12,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:06:12,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611414995] [2022-09-16 11:06:12,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:12,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:06:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:12,226 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:06:12,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:06:12,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611414995] [2022-09-16 11:06:12,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611414995] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:06:12,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715550349] [2022-09-16 11:06:12,227 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 11:06:12,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:12,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:06:12,228 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:06:12,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-09-16 11:06:12,738 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 11:06:12,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 11:06:12,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 12 conjunts are in the unsatisfiable core [2022-09-16 11:06:12,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:06:12,942 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:06:12,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:06:13,230 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:06:13,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715550349] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:06:13,231 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:06:13,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2022-09-16 11:06:13,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445609115] [2022-09-16 11:06:13,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:06:13,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 11:06:13,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:06:13,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 11:06:13,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2022-09-16 11:06:13,233 INFO L87 Difference]: Start difference. First operand 51611 states and 197694 transitions. Second operand has 26 states, 26 states have (on average 7.0) internal successors, (182), 26 states have internal predecessors, (182), 0 states have call successors, (0), 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 11:06:14,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:06:14,516 INFO L93 Difference]: Finished difference Result 60249 states and 225997 transitions. [2022-09-16 11:06:14,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 11:06:14,516 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 7.0) internal successors, (182), 26 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-09-16 11:06:14,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:06:14,752 INFO L225 Difference]: With dead ends: 60249 [2022-09-16 11:06:14,752 INFO L226 Difference]: Without dead ends: 60249 [2022-09-16 11:06:14,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 225 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=365, Invalid=1275, Unknown=0, NotChecked=0, Total=1640 [2022-09-16 11:06:14,753 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 2502 mSDsluCounter, 2055 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2502 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 11:06:14,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2502 Valid, 1846 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-09-16 11:06:14,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60249 states. [2022-09-16 11:06:16,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60249 to 51462. [2022-09-16 11:06:16,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51462 states, 50734 states have (on average 3.888457444711633) internal successors, (197277), 51461 states have internal predecessors, (197277), 0 states have call successors, (0), 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 11:06:16,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51462 states to 51462 states and 197277 transitions. [2022-09-16 11:06:16,441 INFO L78 Accepts]: Start accepts. Automaton has 51462 states and 197277 transitions. Word has length 121 [2022-09-16 11:06:16,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:06:16,442 INFO L495 AbstractCegarLoop]: Abstraction has 51462 states and 197277 transitions. [2022-09-16 11:06:16,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 7.0) internal successors, (182), 26 states have internal predecessors, (182), 0 states have call successors, (0), 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 11:06:16,442 INFO L276 IsEmpty]: Start isEmpty. Operand 51462 states and 197277 transitions. [2022-09-16 11:06:16,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-09-16 11:06:16,443 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:06:16,443 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:06:16,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-09-16 11:06:16,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:16,644 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:06:16,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:06:16,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1407859073, now seen corresponding path program 2 times [2022-09-16 11:06:16,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:06:16,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037317845] [2022-09-16 11:06:16,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:16,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:06:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:16,758 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:06:16,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:06:16,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037317845] [2022-09-16 11:06:16,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037317845] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:06:16,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041817655] [2022-09-16 11:06:16,759 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 11:06:16,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:16,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:06:16,760 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:06:16,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-09-16 11:06:17,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 11:06:17,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 11:06:17,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 12 conjunts are in the unsatisfiable core [2022-09-16 11:06:17,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:06:17,596 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:06:17,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:06:17,791 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:06:17,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041817655] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:06:17,792 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:06:17,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2022-09-16 11:06:17,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757288969] [2022-09-16 11:06:17,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:06:17,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 11:06:17,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:06:17,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 11:06:17,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650 [2022-09-16 11:06:17,796 INFO L87 Difference]: Start difference. First operand 51462 states and 197277 transitions. Second operand has 26 states, 26 states have (on average 7.0) internal successors, (182), 26 states have internal predecessors, (182), 0 states have call successors, (0), 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 11:06:18,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:06:18,814 INFO L93 Difference]: Finished difference Result 53171 states and 201740 transitions. [2022-09-16 11:06:18,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 11:06:18,815 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 7.0) internal successors, (182), 26 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-09-16 11:06:18,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:06:19,339 INFO L225 Difference]: With dead ends: 53171 [2022-09-16 11:06:19,339 INFO L226 Difference]: Without dead ends: 53171 [2022-09-16 11:06:19,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 225 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=507, Invalid=1655, Unknown=0, NotChecked=0, Total=2162 [2022-09-16 11:06:19,340 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 1669 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1669 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 11:06:19,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1669 Valid, 1522 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 11:06:19,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53171 states. [2022-09-16 11:06:20,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53171 to 51322. [2022-09-16 11:06:20,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51322 states, 50594 states have (on average 3.8911728663477883) internal successors, (196870), 51321 states have internal predecessors, (196870), 0 states have call successors, (0), 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 11:06:21,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51322 states to 51322 states and 196870 transitions. [2022-09-16 11:06:21,055 INFO L78 Accepts]: Start accepts. Automaton has 51322 states and 196870 transitions. Word has length 121 [2022-09-16 11:06:21,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:06:21,056 INFO L495 AbstractCegarLoop]: Abstraction has 51322 states and 196870 transitions. [2022-09-16 11:06:21,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 7.0) internal successors, (182), 26 states have internal predecessors, (182), 0 states have call successors, (0), 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 11:06:21,056 INFO L276 IsEmpty]: Start isEmpty. Operand 51322 states and 196870 transitions. [2022-09-16 11:06:21,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-09-16 11:06:21,057 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:06:21,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:06:21,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-09-16 11:06:21,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-09-16 11:06:21,272 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:06:21,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:06:21,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1336350840, now seen corresponding path program 1 times [2022-09-16 11:06:21,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:06:21,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501831231] [2022-09-16 11:06:21,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:21,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:06:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:21,591 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 11:06:21,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:06:21,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501831231] [2022-09-16 11:06:21,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501831231] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:06:21,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532165204] [2022-09-16 11:06:21,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:21,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:21,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:06:21,592 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:06:21,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-09-16 11:06:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:21,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 37 conjunts are in the unsatisfiable core [2022-09-16 11:06:21,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:06:22,280 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 11:06:22,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:06:22,510 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 11:06:22,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:06:22,605 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 11:06:22,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:06:22,672 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 11:06:22,688 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 11:06:22,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:06:22,708 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_703 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_703) c_~B~0.base) (+ (* |c_thread1Thread1of1ForFork1_~i~0#1| 4) c_~B~0.offset)) 9223372039002259456))) is different from false [2022-09-16 11:06:22,724 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_702 (Array Int Int)) (v_ArrVal_703 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_702) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_703) c_~B~0.base) (+ (* |c_thread1Thread1of1ForFork1_~i~0#1| 4) c_~B~0.offset)) 9223372039002259456))) is different from false [2022-09-16 11:06:22,738 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_702 (Array Int Int)) (v_ArrVal_703 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_702) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_703) c_~B~0.base) c_~B~0.offset) 9223372039002259456))) is different from false [2022-09-16 11:06:22,743 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_702 (Array Int Int)) (v_ArrVal_701 (Array Int Int)) (v_ArrVal_703 (Array Int Int))) (< 0 (+ (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_701) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_702) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_703) c_~B~0.base) c_~B~0.offset) 9223372039002259456))) is different from false [2022-09-16 11:06:22,765 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_702 (Array Int Int)) (v_ArrVal_701 (Array Int Int)) (v_ArrVal_703 (Array Int Int))) (< 0 (+ (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_701) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_702) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_703) |c_ULTIMATE.start_main_#t~ret19#1.base|) |c_ULTIMATE.start_main_#t~ret19#1.offset|) 9223372039002259456))) is different from false [2022-09-16 11:06:22,771 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_702 (Array Int Int)) (v_ArrVal_701 (Array Int Int)) (v_ArrVal_703 (Array Int Int))) (< 0 (+ 9223372039002259456 (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_701) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_702) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_703) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|)))) is different from false [2022-09-16 11:06:22,775 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_702 (Array Int Int)) (v_ArrVal_701 (Array Int Int)) (v_ArrVal_703 (Array Int Int))) (< 0 (+ (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_701) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_702) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_703) |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 11:06:22,795 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:22,795 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 30 treesize of output 31 [2022-09-16 11:06:22,804 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:22,804 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 140 treesize of output 138 [2022-09-16 11:06:22,807 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 124 treesize of output 116 [2022-09-16 11:06:22,809 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 116 treesize of output 112 [2022-09-16 11:06:22,813 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 56 treesize of output 54 [2022-09-16 11:06:23,429 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 11:06:23,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532165204] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:06:23,429 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:06:23,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 43 [2022-09-16 11:06:23,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065793711] [2022-09-16 11:06:23,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:06:23,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-09-16 11:06:23,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:06:23,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-09-16 11:06:23,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1191, Unknown=7, NotChecked=532, Total=1892 [2022-09-16 11:06:23,431 INFO L87 Difference]: Start difference. First operand 51322 states and 196870 transitions. Second operand has 44 states, 43 states have (on average 6.27906976744186) internal successors, (270), 44 states have internal predecessors, (270), 0 states have call successors, (0), 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 11:06:25,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:06:25,432 INFO L93 Difference]: Finished difference Result 81733 states and 297839 transitions. [2022-09-16 11:06:25,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 11:06:25,433 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 6.27906976744186) internal successors, (270), 44 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2022-09-16 11:06:25,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:06:25,792 INFO L225 Difference]: With dead ends: 81733 [2022-09-16 11:06:25,792 INFO L226 Difference]: Without dead ends: 81733 [2022-09-16 11:06:25,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 217 SyntacticMatches, 10 SemanticMatches, 56 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=421, Invalid=2150, Unknown=7, NotChecked=728, Total=3306 [2022-09-16 11:06:25,792 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 1836 mSDsluCounter, 2894 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1836 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 3222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1872 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-09-16 11:06:25,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1836 Valid, 2906 Invalid, 3222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1284 Invalid, 0 Unknown, 1872 Unchecked, 0.7s Time] [2022-09-16 11:06:25,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81733 states. [2022-09-16 11:06:27,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81733 to 51160. [2022-09-16 11:06:27,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51160 states, 50432 states have (on average 3.8868377220812182) internal successors, (196021), 51159 states have internal predecessors, (196021), 0 states have call successors, (0), 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 11:06:27,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51160 states to 51160 states and 196021 transitions. [2022-09-16 11:06:27,697 INFO L78 Accepts]: Start accepts. Automaton has 51160 states and 196021 transitions. Word has length 123 [2022-09-16 11:06:27,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:06:27,697 INFO L495 AbstractCegarLoop]: Abstraction has 51160 states and 196021 transitions. [2022-09-16 11:06:27,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 6.27906976744186) internal successors, (270), 44 states have internal predecessors, (270), 0 states have call successors, (0), 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 11:06:27,697 INFO L276 IsEmpty]: Start isEmpty. Operand 51160 states and 196021 transitions. [2022-09-16 11:06:27,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-09-16 11:06:27,698 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:06:27,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:06:27,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-09-16 11:06:27,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:27,899 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:06:27,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:06:27,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1336350837, now seen corresponding path program 1 times [2022-09-16 11:06:27,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:06:27,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617762489] [2022-09-16 11:06:27,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:27,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:06:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:28,706 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 11:06:28,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:06:28,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617762489] [2022-09-16 11:06:28,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617762489] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:06:28,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619035689] [2022-09-16 11:06:28,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:28,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:28,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:06:28,708 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:06:28,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-09-16 11:06:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:29,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 45 conjunts are in the unsatisfiable core [2022-09-16 11:06:29,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:06:29,075 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 11:06:29,092 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-09-16 11:06:29,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 12 treesize of output 14 [2022-09-16 11:06:29,117 INFO L356 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-09-16 11:06:29,118 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 22 [2022-09-16 11:06:29,227 INFO L356 Elim1Store]: treesize reduction 66, result has 19.5 percent of original size [2022-09-16 11:06:29,227 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 22 treesize of output 30 [2022-09-16 11:06:29,391 INFO L356 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2022-09-16 11:06:29,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 21 treesize of output 25 [2022-09-16 11:06:29,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 11:06:29,648 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 11:06:29,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 11:06:29,764 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 11:06:29,784 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 11:06:29,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:06:29,810 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_752 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_752) c_~B~0.base) (+ (* |c_thread1Thread1of1ForFork1_~i~0#1| 4) c_~B~0.offset)) 4294967296)) is different from false [2022-09-16 11:06:29,826 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_751 (Array Int Int)) (v_ArrVal_752 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_751) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_752) c_~B~0.base) (+ (* |c_thread1Thread1of1ForFork1_~i~0#1| 4) c_~B~0.offset)) 4294967296)) is different from false [2022-09-16 11:06:29,841 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_751 (Array Int Int)) (v_ArrVal_752 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_751) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_752) c_~B~0.base) c_~B~0.offset) 4294967296)) is different from false [2022-09-16 11:06:29,849 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_751 (Array Int Int)) (v_ArrVal_750 (Array Int Int)) (v_ArrVal_752 (Array Int Int))) (< (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_750) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_751) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_752) c_~B~0.base) c_~B~0.offset) 4294967296)) is different from false [2022-09-16 11:06:29,873 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_751 (Array Int Int)) (v_ArrVal_750 (Array Int Int)) (v_ArrVal_752 (Array Int Int))) (< (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_750) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_751) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_752) |c_ULTIMATE.start_main_#t~ret19#1.base|) |c_ULTIMATE.start_main_#t~ret19#1.offset|) 4294967296)) is different from false [2022-09-16 11:06:29,880 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_751 (Array Int Int)) (v_ArrVal_750 (Array Int Int)) (v_ArrVal_752 (Array Int Int))) (< (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_750) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_751) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_752) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) 4294967296)) is different from false [2022-09-16 11:06:29,884 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_751 (Array Int Int)) (v_ArrVal_750 (Array Int Int)) (v_ArrVal_752 (Array Int Int))) (< (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_750) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_751) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_752) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|) 4294967296)) is different from false [2022-09-16 11:06:29,908 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:29,908 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 28 treesize of output 29 [2022-09-16 11:06:29,915 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:29,915 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 246 treesize of output 240 [2022-09-16 11:06:29,919 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 226 treesize of output 222 [2022-09-16 11:06:29,923 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 222 treesize of output 214 [2022-09-16 11:06:29,927 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 214 treesize of output 198 [2022-09-16 11:06:30,422 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 11:06:30,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619035689] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:06:30,422 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:06:30,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 16] total 45 [2022-09-16 11:06:30,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030995507] [2022-09-16 11:06:30,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:06:30,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-09-16 11:06:30,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:06:30,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-09-16 11:06:30,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=1338, Unknown=7, NotChecked=560, Total=2070 [2022-09-16 11:06:30,424 INFO L87 Difference]: Start difference. First operand 51160 states and 196021 transitions. Second operand has 46 states, 45 states have (on average 7.311111111111111) internal successors, (329), 46 states have internal predecessors, (329), 0 states have call successors, (0), 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 11:06:32,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:06:32,565 INFO L93 Difference]: Finished difference Result 81328 states and 296405 transitions. [2022-09-16 11:06:32,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 11:06:32,565 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 7.311111111111111) internal successors, (329), 46 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2022-09-16 11:06:32,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:06:32,908 INFO L225 Difference]: With dead ends: 81328 [2022-09-16 11:06:32,908 INFO L226 Difference]: Without dead ends: 81328 [2022-09-16 11:06:32,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 214 SyntacticMatches, 12 SemanticMatches, 58 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 881 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=420, Invalid=2357, Unknown=7, NotChecked=756, Total=3540 [2022-09-16 11:06:32,909 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 690 mSDsluCounter, 4015 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 3887 SdHoareTripleChecker+Invalid, 3462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1801 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 11:06:32,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 3887 Invalid, 3462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1617 Invalid, 0 Unknown, 1801 Unchecked, 0.8s Time] [2022-09-16 11:06:33,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81328 states. [2022-09-16 11:06:34,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81328 to 50998. [2022-09-16 11:06:34,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50998 states, 50270 states have (on average 3.882474636960414) internal successors, (195172), 50997 states have internal predecessors, (195172), 0 states have call successors, (0), 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 11:06:34,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50998 states to 50998 states and 195172 transitions. [2022-09-16 11:06:34,730 INFO L78 Accepts]: Start accepts. Automaton has 50998 states and 195172 transitions. Word has length 123 [2022-09-16 11:06:34,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:06:34,731 INFO L495 AbstractCegarLoop]: Abstraction has 50998 states and 195172 transitions. [2022-09-16 11:06:34,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 7.311111111111111) internal successors, (329), 46 states have internal predecessors, (329), 0 states have call successors, (0), 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 11:06:34,731 INFO L276 IsEmpty]: Start isEmpty. Operand 50998 states and 195172 transitions. [2022-09-16 11:06:34,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-09-16 11:06:34,732 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:06:34,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:06:34,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-09-16 11:06:34,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:34,939 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:06:34,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:06:34,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1336350836, now seen corresponding path program 1 times [2022-09-16 11:06:34,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:06:34,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664489035] [2022-09-16 11:06:34,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:34,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:06:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:36,082 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 11:06:36,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:06:36,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664489035] [2022-09-16 11:06:36,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664489035] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:06:36,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841076870] [2022-09-16 11:06:36,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:36,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:36,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:06:36,084 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:06:36,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-09-16 11:06:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:36,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 48 conjunts are in the unsatisfiable core [2022-09-16 11:06:36,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:06:36,471 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 11:06:36,566 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-09-16 11:06:36,567 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-09-16 11:06:36,715 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 11:06:37,107 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-09-16 11:06:37,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-09-16 11:06:37,223 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 11:06:37,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:06:37,374 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 11:06:37,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:06:37,474 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 11:06:37,527 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 11:06:37,557 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 11:06:37,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:06:37,653 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_800 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_800) c_~A~0.base) (+ (* |c_thread1Thread1of1ForFork1_~i~0#1| 4) c_~A~0.offset)) 2147483648)) is different from false [2022-09-16 11:06:37,664 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_799 (Array Int Int)) (v_ArrVal_800 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_799) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_800) c_~A~0.base) (+ (* |c_thread1Thread1of1ForFork1_~i~0#1| 4) c_~A~0.offset)) 2147483648)) is different from false [2022-09-16 11:06:37,676 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_799 (Array Int Int)) (v_ArrVal_800 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_799) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_800) c_~A~0.base) c_~A~0.offset) 2147483648)) is different from false [2022-09-16 11:06:37,680 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_799 (Array Int Int)) (v_ArrVal_798 (Array Int Int)) (v_ArrVal_800 (Array Int Int))) (< (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_798) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_799) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_800) c_~A~0.base) c_~A~0.offset) 2147483648)) is different from false [2022-09-16 11:06:37,728 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_799 (Array Int Int)) (v_ArrVal_798 (Array Int Int)) (v_ArrVal_800 (Array Int Int)) (v_ArrVal_797 (Array Int Int))) (< (select (select (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_797) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_798) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_799) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_800) c_~A~0.base) c_~A~0.offset) 2147483648)) is different from false [2022-09-16 11:06:37,743 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_799 (Array Int Int)) (v_ArrVal_798 (Array Int Int)) (v_ArrVal_800 (Array Int Int)) (v_ArrVal_797 (Array Int Int))) (< (select (select (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.base| v_ArrVal_797) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_798) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_799) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_800) c_~A~0.base) c_~A~0.offset) 2147483648)) is different from false [2022-09-16 11:06:38,171 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:38,172 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 31 treesize of output 32 [2022-09-16 11:06:38,183 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:38,184 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 1938 treesize of output 1908 [2022-09-16 11:06:38,194 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 1894 treesize of output 1862 [2022-09-16 11:06:38,204 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 1862 treesize of output 1734 [2022-09-16 11:06:38,219 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 1734 treesize of output 1670 [2022-09-16 11:06:38,242 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 842 treesize of output 826 [2022-09-16 11:06:42,471 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-09-16 11:06:42,471 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 22 treesize of output 18 [2022-09-16 11:06:42,477 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-09-16 11:06:42,477 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 22 treesize of output 18 [2022-09-16 11:06:42,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-09-16 11:06:42,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841076870] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:06:42,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:06:42,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 19, 19] total 60 [2022-09-16 11:06:42,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206492960] [2022-09-16 11:06:42,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:06:42,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-09-16 11:06:42,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:06:42,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-09-16 11:06:42,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=2775, Unknown=13, NotChecked=666, Total=3660 [2022-09-16 11:06:42,546 INFO L87 Difference]: Start difference. First operand 50998 states and 195172 transitions. Second operand has 61 states, 60 states have (on average 5.333333333333333) internal successors, (320), 61 states have internal predecessors, (320), 0 states have call successors, (0), 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 11:06:46,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:06:46,837 INFO L93 Difference]: Finished difference Result 54492 states and 206131 transitions. [2022-09-16 11:06:46,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-09-16 11:06:46,838 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 60 states have (on average 5.333333333333333) internal successors, (320), 61 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2022-09-16 11:06:46,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:06:47,054 INFO L225 Difference]: With dead ends: 54492 [2022-09-16 11:06:47,054 INFO L226 Difference]: Without dead ends: 54492 [2022-09-16 11:06:47,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 215 SyntacticMatches, 8 SemanticMatches, 90 ConstructedPredicates, 6 IntricatePredicates, 1 DeprecatedPredicates, 1825 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=921, Invalid=6399, Unknown=14, NotChecked=1038, Total=8372 [2022-09-16 11:06:47,055 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 1123 mSDsluCounter, 4825 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 4670 SdHoareTripleChecker+Invalid, 3873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2418 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 11:06:47,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 4670 Invalid, 3873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1402 Invalid, 0 Unknown, 2418 Unchecked, 0.8s Time] [2022-09-16 11:06:47,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54492 states. [2022-09-16 11:06:48,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54492 to 50836. [2022-09-16 11:06:48,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50836 states, 50108 states have (on average 3.878083339985631) internal successors, (194323), 50835 states have internal predecessors, (194323), 0 states have call successors, (0), 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 11:06:48,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50836 states to 50836 states and 194323 transitions. [2022-09-16 11:06:48,772 INFO L78 Accepts]: Start accepts. Automaton has 50836 states and 194323 transitions. Word has length 123 [2022-09-16 11:06:48,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:06:48,772 INFO L495 AbstractCegarLoop]: Abstraction has 50836 states and 194323 transitions. [2022-09-16 11:06:48,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 60 states have (on average 5.333333333333333) internal successors, (320), 61 states have internal predecessors, (320), 0 states have call successors, (0), 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 11:06:48,773 INFO L276 IsEmpty]: Start isEmpty. Operand 50836 states and 194323 transitions. [2022-09-16 11:06:48,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-09-16 11:06:48,774 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:06:48,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:06:48,793 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-09-16 11:06:48,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:48,976 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:06:48,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:06:48,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1336350835, now seen corresponding path program 1 times [2022-09-16 11:06:48,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:06:48,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965851308] [2022-09-16 11:06:48,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:48,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:06:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:49,969 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 11:06:49,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:06:49,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965851308] [2022-09-16 11:06:49,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965851308] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:06:49,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134691884] [2022-09-16 11:06:49,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:49,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:06:49,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:06:49,971 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:06:49,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-09-16 11:06:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:06:50,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 51 conjunts are in the unsatisfiable core [2022-09-16 11:06:50,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:06:50,680 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 11:06:50,800 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-09-16 11:06:50,801 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-09-16 11:06:50,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 11:06:51,458 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-09-16 11:06:51,458 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-09-16 11:06:51,603 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 11:06:51,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:06:51,790 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 11:06:51,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:06:51,915 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 11:06:51,970 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 20 treesize of output 22 [2022-09-16 11:06:51,973 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 11:06:51,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:06:52,040 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_848 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_848) c_~A~0.base) (+ (* |c_thread1Thread1of1ForFork1_~i~0#1| 4) c_~A~0.offset))))) is different from false [2022-09-16 11:06:52,052 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_847 (Array Int Int)) (v_ArrVal_848 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_847) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_848) c_~A~0.base) (+ (* |c_thread1Thread1of1ForFork1_~i~0#1| 4) c_~A~0.offset))))) is different from false [2022-09-16 11:06:52,063 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_847 (Array Int Int)) (v_ArrVal_848 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_847) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_848) c_~A~0.base) c_~A~0.offset)))) is different from false [2022-09-16 11:06:52,068 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_847 (Array Int Int)) (v_ArrVal_846 (Array Int Int)) (v_ArrVal_848 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_846) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_847) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_848) c_~A~0.base) c_~A~0.offset)))) is different from false [2022-09-16 11:06:52,105 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_845 (Array Int Int)) (v_ArrVal_847 (Array Int Int)) (v_ArrVal_846 (Array Int Int)) (v_ArrVal_848 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_845) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_846) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_847) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_848) c_~A~0.base) c_~A~0.offset)))) is different from false [2022-09-16 11:06:52,122 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_845 (Array Int Int)) (v_ArrVal_847 (Array Int Int)) (v_ArrVal_846 (Array Int Int)) (v_ArrVal_848 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_#t~malloc29#1.base| v_ArrVal_845) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_846) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_847) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_848) c_~A~0.base) c_~A~0.offset)))) is different from false [2022-09-16 11:06:52,537 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:52,537 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 33 treesize of output 34 [2022-09-16 11:06:52,549 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:06:52,550 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 550 treesize of output 544 [2022-09-16 11:06:52,556 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 530 treesize of output 498 [2022-09-16 11:06:52,562 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 498 treesize of output 482 [2022-09-16 11:06:52,570 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 245 treesize of output 237 [2022-09-16 11:06:52,576 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 474 treesize of output 470 [2022-09-16 11:06:53,676 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-09-16 11:06:53,676 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 22 treesize of output 18 [2022-09-16 11:06:53,681 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-09-16 11:06:53,681 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 22 treesize of output 18 [2022-09-16 11:06:53,750 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-09-16 11:06:53,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134691884] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:06:53,750 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:06:53,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 19, 19] total 62 [2022-09-16 11:06:53,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96672882] [2022-09-16 11:06:53,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:06:53,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-09-16 11:06:53,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:06:53,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-09-16 11:06:53,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=2958, Unknown=13, NotChecked=690, Total=3906 [2022-09-16 11:06:53,752 INFO L87 Difference]: Start difference. First operand 50836 states and 194323 transitions. Second operand has 63 states, 62 states have (on average 5.225806451612903) internal successors, (324), 63 states have internal predecessors, (324), 0 states have call successors, (0), 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 11:06:57,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:06:57,494 INFO L93 Difference]: Finished difference Result 52822 states and 199971 transitions. [2022-09-16 11:06:57,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-09-16 11:06:57,495 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 5.225806451612903) internal successors, (324), 63 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2022-09-16 11:06:57,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:06:57,764 INFO L225 Difference]: With dead ends: 52822 [2022-09-16 11:06:57,764 INFO L226 Difference]: Without dead ends: 52582 [2022-09-16 11:06:57,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 211 SyntacticMatches, 13 SemanticMatches, 89 ConstructedPredicates, 6 IntricatePredicates, 1 DeprecatedPredicates, 1773 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=926, Invalid=6225, Unknown=13, NotChecked=1026, Total=8190 [2022-09-16 11:06:57,765 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 1112 mSDsluCounter, 3864 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 3695 SdHoareTripleChecker+Invalid, 4421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3089 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-09-16 11:06:57,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1112 Valid, 3695 Invalid, 4421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1236 Invalid, 0 Unknown, 3089 Unchecked, 0.8s Time] [2022-09-16 11:06:57,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52582 states. [2022-09-16 11:06:59,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52582 to 50494. [2022-09-16 11:06:59,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50494 states, 49766 states have (on average 3.8760398665755735) internal successors, (192895), 50493 states have internal predecessors, (192895), 0 states have call successors, (0), 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 11:06:59,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50494 states to 50494 states and 192895 transitions. [2022-09-16 11:06:59,357 INFO L78 Accepts]: Start accepts. Automaton has 50494 states and 192895 transitions. Word has length 123 [2022-09-16 11:06:59,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:06:59,357 INFO L495 AbstractCegarLoop]: Abstraction has 50494 states and 192895 transitions. [2022-09-16 11:06:59,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 5.225806451612903) internal successors, (324), 63 states have internal predecessors, (324), 0 states have call successors, (0), 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 11:06:59,357 INFO L276 IsEmpty]: Start isEmpty. Operand 50494 states and 192895 transitions. [2022-09-16 11:06:59,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-09-16 11:06:59,358 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:06:59,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:06:59,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-09-16 11:06:59,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-09-16 11:06:59,559 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:06:59,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:06:59,560 INFO L85 PathProgramCache]: Analyzing trace with hash -459850917, now seen corresponding path program 1 times [2022-09-16 11:06:59,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:06:59,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250514420] [2022-09-16 11:06:59,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:06:59,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:06:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:07:00,533 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 11:07:00,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:07:00,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250514420] [2022-09-16 11:07:00,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250514420] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:07:00,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657428937] [2022-09-16 11:07:00,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:07:00,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:07:00,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:07:00,537 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:07:00,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-09-16 11:07:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:07:00,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 53 conjunts are in the unsatisfiable core [2022-09-16 11:07:00,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:07:00,921 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 11:07:00,954 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-09-16 11:07:00,954 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 12 treesize of output 14 [2022-09-16 11:07:01,138 INFO L356 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-09-16 11:07:01,139 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 22 [2022-09-16 11:07:01,507 INFO L356 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-09-16 11:07:01,507 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-09-16 11:07:01,646 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 11:07:02,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:07:02,090 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 11:07:02,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 11:07:02,250 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 11:07:02,362 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 11:07:02,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:07:02,478 WARN L833 $PredicateComparison]: unable to prove that (or (not (< c_~M~0 c_~N~0)) (forall ((v_ArrVal_896 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_896) c_~B~0.base) (+ (* 4 c_~M~0) c_~B~0.offset)) 4294967295))) is different from false [2022-09-16 11:07:02,504 WARN L833 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_896 (Array Int Int)) (v_ArrVal_895 (Array Int Int))) (<= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_895) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_896) c_~B~0.base) (+ (* 4 c_~M~0) c_~B~0.offset)) 4294967295)) (not (< c_~M~0 c_~N~0))) is different from false [2022-09-16 11:07:02,524 WARN L833 $PredicateComparison]: unable to prove that (or (not (< c_~M~0 c_~N~0)) (forall ((v_ArrVal_894 (Array Int Int)) (v_ArrVal_896 (Array Int Int)) (v_ArrVal_895 (Array Int Int))) (<= (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_894) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_895) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_896) c_~B~0.base) (+ (* 4 c_~M~0) c_~B~0.offset)) 4294967295))) is different from false [2022-09-16 11:07:03,116 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:07:03,117 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 32 treesize of output 33 [2022-09-16 11:07:03,123 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:07:03,123 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 156 treesize of output 152 [2022-09-16 11:07:03,126 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 136 treesize of output 112 [2022-09-16 11:07:03,129 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 112 treesize of output 100 [2022-09-16 11:07:03,133 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 52 treesize of output 46 [2022-09-16 11:07:05,150 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 13 treesize of output 11 [2022-09-16 11:07:05,184 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 11:07:05,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657428937] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:07:05,184 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:07:05,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 26] total 77 [2022-09-16 11:07:05,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510376553] [2022-09-16 11:07:05,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:07:05,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-09-16 11:07:05,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:07:05,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-09-16 11:07:05,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=383, Invalid=5071, Unknown=108, NotChecked=444, Total=6006 [2022-09-16 11:07:05,186 INFO L87 Difference]: Start difference. First operand 50494 states and 192895 transitions. Second operand has 78 states, 77 states have (on average 4.35064935064935) internal successors, (335), 78 states have internal predecessors, (335), 0 states have call successors, (0), 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 11:07:10,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:07:10,531 INFO L93 Difference]: Finished difference Result 55270 states and 209026 transitions. [2022-09-16 11:07:10,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-09-16 11:07:10,532 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 77 states have (on average 4.35064935064935) internal successors, (335), 78 states have internal predecessors, (335), 0 states have call successors, (0), 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 124 [2022-09-16 11:07:10,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:07:10,758 INFO L225 Difference]: With dead ends: 55270 [2022-09-16 11:07:10,758 INFO L226 Difference]: Without dead ends: 55270 [2022-09-16 11:07:10,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 195 SyntacticMatches, 9 SemanticMatches, 110 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 2907 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=1628, Invalid=10048, Unknown=108, NotChecked=648, Total=12432 [2022-09-16 11:07:10,759 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 3567 mSDsluCounter, 6302 mSDsCounter, 0 mSdLazyCounter, 3510 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3567 SdHoareTripleChecker+Valid, 5831 SdHoareTripleChecker+Invalid, 5853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 3510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2178 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-09-16 11:07:10,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3567 Valid, 5831 Invalid, 5853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 3510 Invalid, 0 Unknown, 2178 Unchecked, 1.8s Time] [2022-09-16 11:07:10,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55270 states. [2022-09-16 11:07:12,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55270 to 51152. [2022-09-16 11:07:12,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51152 states, 50424 states have (on average 3.896834840552118) internal successors, (196494), 51151 states have internal predecessors, (196494), 0 states have call successors, (0), 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 11:07:12,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51152 states to 51152 states and 196494 transitions. [2022-09-16 11:07:12,379 INFO L78 Accepts]: Start accepts. Automaton has 51152 states and 196494 transitions. Word has length 124 [2022-09-16 11:07:12,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:07:12,379 INFO L495 AbstractCegarLoop]: Abstraction has 51152 states and 196494 transitions. [2022-09-16 11:07:12,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 77 states have (on average 4.35064935064935) internal successors, (335), 78 states have internal predecessors, (335), 0 states have call successors, (0), 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 11:07:12,380 INFO L276 IsEmpty]: Start isEmpty. Operand 51152 states and 196494 transitions. [2022-09-16 11:07:12,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-09-16 11:07:12,381 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:07:12,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:07:12,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-09-16 11:07:12,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-09-16 11:07:12,588 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-09-16 11:07:12,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:07:12,589 INFO L85 PathProgramCache]: Analyzing trace with hash -459850916, now seen corresponding path program 1 times [2022-09-16 11:07:12,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:07:12,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284989160] [2022-09-16 11:07:12,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:07:12,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:07:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:07:14,164 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 11:07:14,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:07:14,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284989160] [2022-09-16 11:07:14,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284989160] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:07:14,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162704209] [2022-09-16 11:07:14,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:07:14,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:07:14,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:07:14,166 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:07:14,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-09-16 11:07:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:07:14,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 48 conjunts are in the unsatisfiable core [2022-09-16 11:07:14,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:07:14,750 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 11:07:14,951 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 15 treesize of output 11 [2022-09-16 11:07:15,814 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-16 11:07:15,814 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 11:07:15,984 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 18 treesize of output 20 [2022-09-16 11:07:16,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:07:16,479 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 18 treesize of output 20 [2022-09-16 11:07:16,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:07:16,603 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 18 treesize of output 20 [2022-09-16 11:07:16,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-16 11:07:16,712 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 18 treesize of output 20 [2022-09-16 11:07:16,896 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 11:07:16,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:07:17,203 WARN L833 $PredicateComparison]: unable to prove that (or (not (< c_~M~0 c_~N~0)) (and (forall ((v_ArrVal_943 (Array Int Int)) (~B~0.offset Int) (~B~0.base Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_943)) (.cse1 (* 4 c_~M~0))) (let ((.cse2 (select (select .cse0 ~B~0.base) (+ ~B~0.offset .cse1)))) (or (<= (+ (select (select .cse0 c_~A~0.base) (+ c_~A~0.offset .cse1)) .cse2) 2147483647) (< (+ 9223372039002259455 .cse2) 0) (<= 0 .cse2))))) (forall ((v_ArrVal_943 (Array Int Int)) (~B~0.offset Int) (~B~0.base Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_943)) (.cse4 (* 4 c_~M~0))) (let ((.cse5 (select (select .cse3 ~B~0.base) (+ ~B~0.offset .cse4)))) (or (<= (+ (select (select .cse3 c_~A~0.base) (+ c_~A~0.offset .cse4)) .cse5) 2147483647) (not (<= 0 .cse5)) (not (<= .cse5 0)))))))) is different from false [2022-09-16 11:07:17,296 WARN L833 $PredicateComparison]: unable to prove that (or (and (forall ((v_ArrVal_942 (Array Int Int)) (v_ArrVal_943 (Array Int Int)) (~B~0.offset Int) (~B~0.base Int)) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_942) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_943)) (.cse2 (* 4 c_~M~0))) (let ((.cse0 (select (select .cse1 ~B~0.base) (+ ~B~0.offset .cse2)))) (or (not (<= 0 .cse0)) (<= (+ .cse0 (select (select .cse1 c_~A~0.base) (+ c_~A~0.offset .cse2))) 2147483647) (not (<= .cse0 0)))))) (forall ((v_ArrVal_942 (Array Int Int)) (v_ArrVal_943 (Array Int Int)) (~B~0.offset Int) (~B~0.base Int)) (let ((.cse4 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_942) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_943)) (.cse5 (* 4 c_~M~0))) (let ((.cse3 (select (select .cse4 ~B~0.base) (+ ~B~0.offset .cse5)))) (or (<= (+ .cse3 (select (select .cse4 c_~A~0.base) (+ c_~A~0.offset .cse5))) 2147483647) (<= 0 .cse3) (< (+ .cse3 9223372039002259455) 0)))))) (not (< c_~M~0 c_~N~0))) is different from false [2022-09-16 11:07:17,391 WARN L833 $PredicateComparison]: unable to prove that (or (not (< c_~M~0 c_~N~0)) (and (forall ((v_ArrVal_942 (Array Int Int)) (v_ArrVal_941 (Array Int Int)) (v_ArrVal_943 (Array Int Int)) (~B~0.offset Int) (~B~0.base Int)) (let ((.cse1 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_941) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_942) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_943)) (.cse2 (* 4 c_~M~0))) (let ((.cse0 (select (select .cse1 ~B~0.base) (+ ~B~0.offset .cse2)))) (or (< (+ 9223372039002259455 .cse0) 0) (<= 0 .cse0) (<= (+ (select (select .cse1 c_~A~0.base) (+ c_~A~0.offset .cse2)) .cse0) 2147483647))))) (forall ((v_ArrVal_942 (Array Int Int)) (v_ArrVal_941 (Array Int Int)) (v_ArrVal_943 (Array Int Int)) (~B~0.offset Int) (~B~0.base Int)) (let ((.cse4 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_941) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_942) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_943)) (.cse5 (* 4 c_~M~0))) (let ((.cse3 (select (select .cse4 ~B~0.base) (+ ~B~0.offset .cse5)))) (or (not (<= .cse3 0)) (<= (+ (select (select .cse4 c_~A~0.base) (+ c_~A~0.offset .cse5)) .cse3) 2147483647) (not (<= 0 .cse3)))))))) is different from false [2022-09-16 11:07:17,482 WARN L833 $PredicateComparison]: unable to prove that (or (not (< c_~M~0 c_~N~0)) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (and (forall ((v_ArrVal_942 (Array Int Int)) (v_ArrVal_941 (Array Int Int)) (v_ArrVal_943 (Array Int Int)) (~B~0.offset Int) (~B~0.base Int)) (let ((.cse1 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_941) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_942) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_943)) (.cse2 (* 4 c_~M~0))) (let ((.cse0 (select (select .cse1 ~B~0.base) (+ ~B~0.offset .cse2)))) (or (< (+ 9223372039002259455 .cse0) 0) (<= 0 .cse0) (<= (+ (select (select .cse1 c_~A~0.base) (+ c_~A~0.offset .cse2)) .cse0) 2147483647))))) (forall ((v_ArrVal_942 (Array Int Int)) (v_ArrVal_941 (Array Int Int)) (v_ArrVal_943 (Array Int Int)) (~B~0.offset Int) (~B~0.base Int)) (let ((.cse4 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_941) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_942) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_943)) (.cse5 (* 4 c_~M~0))) (let ((.cse3 (select (select .cse4 ~B~0.base) (+ ~B~0.offset .cse5)))) (or (not (<= .cse3 0)) (<= (+ (select (select .cse4 c_~A~0.base) (+ c_~A~0.offset .cse5)) .cse3) 2147483647) (not (<= 0 .cse3)))))))) is different from false [2022-09-16 11:07:17,503 WARN L833 $PredicateComparison]: unable to prove that (or (not (< c_~M~0 c_~N~0)) (= |c_ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0) (and (forall ((v_ArrVal_942 (Array Int Int)) (v_ArrVal_941 (Array Int Int)) (v_ArrVal_943 (Array Int Int)) (~B~0.offset Int) (~B~0.base Int)) (let ((.cse1 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_941) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_942) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_943)) (.cse2 (* 4 c_~M~0))) (let ((.cse0 (select (select .cse1 ~B~0.base) (+ ~B~0.offset .cse2)))) (or (< (+ 9223372039002259455 .cse0) 0) (<= 0 .cse0) (<= (+ (select (select .cse1 c_~A~0.base) (+ c_~A~0.offset .cse2)) .cse0) 2147483647))))) (forall ((v_ArrVal_942 (Array Int Int)) (v_ArrVal_941 (Array Int Int)) (v_ArrVal_943 (Array Int Int)) (~B~0.offset Int) (~B~0.base Int)) (let ((.cse4 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_941) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_942) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_943)) (.cse5 (* 4 c_~M~0))) (let ((.cse3 (select (select .cse4 ~B~0.base) (+ ~B~0.offset .cse5)))) (or (not (<= .cse3 0)) (<= (+ (select (select .cse4 c_~A~0.base) (+ c_~A~0.offset .cse5)) .cse3) 2147483647) (not (<= 0 .cse3)))))))) is different from false [2022-09-16 11:07:27,600 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:07:27,600 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 311 treesize of output 228 [2022-09-16 11:07:27,747 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:07:27,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 2683914 treesize of output 2585627 [2022-09-16 11:07:32,755 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:07:32,757 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 2585469 treesize of output 2191878 [2022-09-16 11:07:37,800 WARN L233 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 2633 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-09-16 11:07:37,925 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:07:37,928 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 2191869 treesize of output 2142678 [2022-09-16 11:07:42,925 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:07:42,928 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 2142669 treesize of output 1945878 [2022-09-16 11:07:47,882 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-16 11:07:47,884 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 1945869 treesize of output 1847478