/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/parallel-misc-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:54:54,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:54:54,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:54:54,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:54:54,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:54:54,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:54:54,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:54:54,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:54:54,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:54:54,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:54:54,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:54:54,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:54:54,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:54:54,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:54:54,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:54:54,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:54:54,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:54:54,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:54:54,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:54:54,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:54:54,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:54:54,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:54:54,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:54:54,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:54:54,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:54:54,194 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:54:54,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:54:54,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:54:54,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:54:54,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:54:54,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:54:54,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:54:54,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:54:54,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:54:54,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:54:54,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:54:54,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:54:54,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:54:54,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:54:54,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:54:54,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:54:54,202 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-09-16 10:54:54,224 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:54:54,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:54:54,225 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:54:54,225 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:54:54,226 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:54:54,226 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:54:54,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:54:54,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:54:54,227 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:54:54,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:54:54,227 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:54:54,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:54:54,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:54:54,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:54:54,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:54:54,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:54:54,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:54:54,228 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:54:54,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:54:54,228 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:54:54,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:54:54,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:54:54,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:54:54,229 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:54:54,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:54:54,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:54:54,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:54:54,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:54:54,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:54:54,230 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:54:54,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:54:54,230 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:54:54,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:54:54,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:54:54,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:54:54,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:54:54,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:54:54,478 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:54:54,482 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:54:54,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-3.wvr.c [2022-09-16 10:54:54,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cac90a47/e9aa5463f31b4280bf3169cf29c3d00b/FLAG3c03fc112 [2022-09-16 10:54:54,938 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:54:54,938 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3.wvr.c [2022-09-16 10:54:54,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cac90a47/e9aa5463f31b4280bf3169cf29c3d00b/FLAG3c03fc112 [2022-09-16 10:54:54,955 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cac90a47/e9aa5463f31b4280bf3169cf29c3d00b [2022-09-16 10:54:54,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:54:54,958 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:54:54,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:54:54,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:54:54,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:54:54,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:54:54" (1/1) ... [2022-09-16 10:54:54,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dcb9a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:54, skipping insertion in model container [2022-09-16 10:54:54,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:54:54" (1/1) ... [2022-09-16 10:54:54,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:54:54,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:54:55,149 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/parallel-misc-3.wvr.c[2410,2423] [2022-09-16 10:54:55,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:54:55,165 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:54:55,186 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/parallel-misc-3.wvr.c[2410,2423] [2022-09-16 10:54:55,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:54:55,199 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:54:55,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:55 WrapperNode [2022-09-16 10:54:55,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:54:55,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:54:55,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:54:55,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:54:55,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:55" (1/1) ... [2022-09-16 10:54:55,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:55" (1/1) ... [2022-09-16 10:54:55,231 INFO L138 Inliner]: procedures = 21, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 53 [2022-09-16 10:54:55,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:54:55,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:54:55,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:54:55,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:54:55,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:55" (1/1) ... [2022-09-16 10:54:55,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:55" (1/1) ... [2022-09-16 10:54:55,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:55" (1/1) ... [2022-09-16 10:54:55,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:55" (1/1) ... [2022-09-16 10:54:55,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:55" (1/1) ... [2022-09-16 10:54:55,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:55" (1/1) ... [2022-09-16 10:54:55,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:55" (1/1) ... [2022-09-16 10:54:55,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:54:55,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:54:55,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:54:55,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:54:55,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:55" (1/1) ... [2022-09-16 10:54:55,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:54:55,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:54:55,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 10:54:55,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 10:54:55,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:54:55,323 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 10:54:55,323 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 10:54:55,323 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 10:54:55,323 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 10:54:55,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:54:55,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:54:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:54:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:54:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:54:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:54:55,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:54:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:54:55,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:54:55,326 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 10:54:55,401 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:54:55,402 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:54:55,618 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:54:55,675 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:54:55,675 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-09-16 10:54:55,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:54:55 BoogieIcfgContainer [2022-09-16 10:54:55,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:54:55,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:54:55,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:54:55,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:54:55,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:54:54" (1/3) ... [2022-09-16 10:54:55,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28968fc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:54:55, skipping insertion in model container [2022-09-16 10:54:55,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:55" (2/3) ... [2022-09-16 10:54:55,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28968fc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:54:55, skipping insertion in model container [2022-09-16 10:54:55,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:54:55" (3/3) ... [2022-09-16 10:54:55,687 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-3.wvr.c [2022-09-16 10:54:55,695 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:54:55,704 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:54:55,704 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 10:54:55,705 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:54:55,808 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-16 10:54:55,853 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 98 places, 102 transitions, 220 flow [2022-09-16 10:54:55,960 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1291 states, 1267 states have (on average 3.116022099447514) internal successors, (3948), 1290 states have internal predecessors, (3948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:55,977 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:54:55,984 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;@53444bb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:54:55,984 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-09-16 10:54:55,990 INFO L276 IsEmpty]: Start isEmpty. Operand has 1291 states, 1267 states have (on average 3.116022099447514) internal successors, (3948), 1290 states have internal predecessors, (3948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:55,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-09-16 10:54:55,998 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:55,998 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] [2022-09-16 10:54:55,999 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 10:54:56,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:56,003 INFO L85 PathProgramCache]: Analyzing trace with hash -754746104, now seen corresponding path program 1 times [2022-09-16 10:54:56,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:56,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598152577] [2022-09-16 10:54:56,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:56,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:56,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:56,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:56,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598152577] [2022-09-16 10:54:56,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598152577] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:56,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:56,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:54:56,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008733591] [2022-09-16 10:54:56,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:56,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:54:56,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:56,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:54:56,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:54:56,296 INFO L87 Difference]: Start difference. First operand has 1291 states, 1267 states have (on average 3.116022099447514) internal successors, (3948), 1290 states have internal predecessors, (3948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:56,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:56,415 INFO L93 Difference]: Finished difference Result 1505 states and 4443 transitions. [2022-09-16 10:54:56,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:54:56,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2022-09-16 10:54:56,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:56,450 INFO L225 Difference]: With dead ends: 1505 [2022-09-16 10:54:56,450 INFO L226 Difference]: Without dead ends: 1505 [2022-09-16 10:54:56,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:54:56,455 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 22 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:56,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 112 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:54:56,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2022-09-16 10:54:56,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1505. [2022-09-16 10:54:56,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1481 states have (on average 3.0) internal successors, (4443), 1504 states have internal predecessors, (4443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:56,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 4443 transitions. [2022-09-16 10:54:56,600 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 4443 transitions. Word has length 30 [2022-09-16 10:54:56,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:56,601 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 4443 transitions. [2022-09-16 10:54:56,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:56,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 4443 transitions. [2022-09-16 10:54:56,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-09-16 10:54:56,604 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:56,604 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:54:56,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:54:56,605 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 10:54:56,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:56,606 INFO L85 PathProgramCache]: Analyzing trace with hash 104939503, now seen corresponding path program 1 times [2022-09-16 10:54:56,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:56,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425829610] [2022-09-16 10:54:56,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:56,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:56,681 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:56,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:56,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425829610] [2022-09-16 10:54:56,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425829610] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:56,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:56,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:54:56,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950549048] [2022-09-16 10:54:56,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:56,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:54:56,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:56,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:54:56,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:54:56,685 INFO L87 Difference]: Start difference. First operand 1505 states and 4443 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:56,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:56,788 INFO L93 Difference]: Finished difference Result 1955 states and 5703 transitions. [2022-09-16 10:54:56,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:54:56,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2022-09-16 10:54:56,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:56,804 INFO L225 Difference]: With dead ends: 1955 [2022-09-16 10:54:56,805 INFO L226 Difference]: Without dead ends: 1955 [2022-09-16 10:54:56,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:54:56,810 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 47 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:56,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 146 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:54:56,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1955 states. [2022-09-16 10:54:56,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1955 to 1653. [2022-09-16 10:54:56,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1629 states have (on average 3.0245549416820134) internal successors, (4927), 1652 states have internal predecessors, (4927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:56,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 4927 transitions. [2022-09-16 10:54:56,926 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 4927 transitions. Word has length 35 [2022-09-16 10:54:56,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:56,933 INFO L495 AbstractCegarLoop]: Abstraction has 1653 states and 4927 transitions. [2022-09-16 10:54:56,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:56,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 4927 transitions. [2022-09-16 10:54:56,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-09-16 10:54:56,939 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:56,940 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] [2022-09-16 10:54:56,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:54:56,940 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 10:54:56,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:56,941 INFO L85 PathProgramCache]: Analyzing trace with hash 104939537, now seen corresponding path program 1 times [2022-09-16 10:54:56,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:56,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790715074] [2022-09-16 10:54:56,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:56,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:57,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:57,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:57,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790715074] [2022-09-16 10:54:57,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790715074] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:54:57,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383296291] [2022-09-16 10:54:57,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:57,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:57,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:54:57,063 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:54:57,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 10:54:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:57,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:54:57,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:54:57,240 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:57,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:54:57,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:57,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383296291] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:54:57,338 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:54:57,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-09-16 10:54:57,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110366000] [2022-09-16 10:54:57,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:54:57,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 10:54:57,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:57,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 10:54:57,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:54:57,344 INFO L87 Difference]: Start difference. First operand 1653 states and 4927 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:57,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:57,452 INFO L93 Difference]: Finished difference Result 3604 states and 11132 transitions. [2022-09-16 10:54:57,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 10:54:57,453 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-09-16 10:54:57,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:57,480 INFO L225 Difference]: With dead ends: 3604 [2022-09-16 10:54:57,481 INFO L226 Difference]: Without dead ends: 3604 [2022-09-16 10:54:57,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:54:57,482 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 237 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:57,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 238 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:54:57,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3604 states. [2022-09-16 10:54:57,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3604 to 3138. [2022-09-16 10:54:57,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3138 states, 3123 states have (on average 3.15850144092219) internal successors, (9864), 3137 states have internal predecessors, (9864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:57,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 9864 transitions. [2022-09-16 10:54:57,622 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 9864 transitions. Word has length 35 [2022-09-16 10:54:57,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:57,622 INFO L495 AbstractCegarLoop]: Abstraction has 3138 states and 9864 transitions. [2022-09-16 10:54:57,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:57,622 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 9864 transitions. [2022-09-16 10:54:57,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-09-16 10:54:57,626 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:57,626 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] [2022-09-16 10:54:57,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-16 10:54:57,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:57,852 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 10:54:57,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:57,852 INFO L85 PathProgramCache]: Analyzing trace with hash 104939538, now seen corresponding path program 1 times [2022-09-16 10:54:57,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:57,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845078603] [2022-09-16 10:54:57,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:57,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:57,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:57,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:57,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845078603] [2022-09-16 10:54:57,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845078603] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:54:57,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605195237] [2022-09-16 10:54:57,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:57,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:57,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:54:57,950 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:54:57,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 10:54:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:58,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:54:58,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:54:58,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:58,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:54:58,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605195237] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:58,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:54:58,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-09-16 10:54:58,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75146663] [2022-09-16 10:54:58,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:58,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:54:58,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:58,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:54:58,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:54:58,072 INFO L87 Difference]: Start difference. First operand 3138 states and 9864 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:58,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:58,206 INFO L93 Difference]: Finished difference Result 6032 states and 18765 transitions. [2022-09-16 10:54:58,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:54:58,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2022-09-16 10:54:58,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:58,253 INFO L225 Difference]: With dead ends: 6032 [2022-09-16 10:54:58,253 INFO L226 Difference]: Without dead ends: 6032 [2022-09-16 10:54:58,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:54:58,255 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 78 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:58,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 219 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:54:58,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6032 states. [2022-09-16 10:54:58,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6032 to 5452. [2022-09-16 10:54:58,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5452 states, 5437 states have (on average 3.166819937465514) internal successors, (17218), 5451 states have internal predecessors, (17218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:58,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5452 states to 5452 states and 17218 transitions. [2022-09-16 10:54:58,452 INFO L78 Accepts]: Start accepts. Automaton has 5452 states and 17218 transitions. Word has length 35 [2022-09-16 10:54:58,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:58,454 INFO L495 AbstractCegarLoop]: Abstraction has 5452 states and 17218 transitions. [2022-09-16 10:54:58,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:58,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5452 states and 17218 transitions. [2022-09-16 10:54:58,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-09-16 10:54:58,455 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:58,455 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:54:58,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-09-16 10:54:58,671 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,SelfDestructingSolverStorable3 [2022-09-16 10:54:58,672 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 10:54:58,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:58,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1078330672, now seen corresponding path program 1 times [2022-09-16 10:54:58,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:58,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370769858] [2022-09-16 10:54:58,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:58,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:58,717 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:58,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:58,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370769858] [2022-09-16 10:54:58,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370769858] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:54:58,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814192497] [2022-09-16 10:54:58,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:58,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:58,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:54:58,719 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:54:58,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 10:54:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:58,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:54:58,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:54:58,837 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:58,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:54:58,884 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:58,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814192497] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:54:58,885 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:54:58,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2022-09-16 10:54:58,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969770154] [2022-09-16 10:54:58,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:54:58,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 10:54:58,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:58,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 10:54:58,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:54:58,886 INFO L87 Difference]: Start difference. First operand 5452 states and 17218 transitions. Second operand has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:59,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:59,083 INFO L93 Difference]: Finished difference Result 13110 states and 40989 transitions. [2022-09-16 10:54:59,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:54:59,084 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 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 35 [2022-09-16 10:54:59,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:59,176 INFO L225 Difference]: With dead ends: 13110 [2022-09-16 10:54:59,176 INFO L226 Difference]: Without dead ends: 13110 [2022-09-16 10:54:59,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:54:59,178 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 372 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:59,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 397 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:54:59,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13110 states. [2022-09-16 10:54:59,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13110 to 9726. [2022-09-16 10:54:59,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9726 states, 9711 states have (on average 3.1669241066831426) internal successors, (30754), 9725 states have internal predecessors, (30754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:59,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9726 states to 9726 states and 30754 transitions. [2022-09-16 10:54:59,624 INFO L78 Accepts]: Start accepts. Automaton has 9726 states and 30754 transitions. Word has length 35 [2022-09-16 10:54:59,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:59,624 INFO L495 AbstractCegarLoop]: Abstraction has 9726 states and 30754 transitions. [2022-09-16 10:54:59,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:54:59,625 INFO L276 IsEmpty]: Start isEmpty. Operand 9726 states and 30754 transitions. [2022-09-16 10:54:59,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-09-16 10:54:59,627 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:59,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:59,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-16 10:54:59,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:54:59,853 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 10:54:59,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:59,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1062570621, now seen corresponding path program 1 times [2022-09-16 10:54:59,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:59,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032664694] [2022-09-16 10:54:59,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:59,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:59,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:59,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:59,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032664694] [2022-09-16 10:54:59,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032664694] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:59,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:59,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:54:59,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910719831] [2022-09-16 10:54:59,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:59,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:54:59,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:59,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:54:59,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:54:59,903 INFO L87 Difference]: Start difference. First operand 9726 states and 30754 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:55:00,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:00,148 INFO L93 Difference]: Finished difference Result 16732 states and 53202 transitions. [2022-09-16 10:55:00,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:55:00,156 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-09-16 10:55:00,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:00,244 INFO L225 Difference]: With dead ends: 16732 [2022-09-16 10:55:00,245 INFO L226 Difference]: Without dead ends: 16732 [2022-09-16 10:55:00,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:55:00,246 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 86 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:00,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 157 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:55:00,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16732 states. [2022-09-16 10:55:00,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16732 to 12503. [2022-09-16 10:55:00,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12503 states, 12488 states have (on average 3.223814862267777) internal successors, (40259), 12502 states have internal predecessors, (40259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:55:00,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12503 states to 12503 states and 40259 transitions. [2022-09-16 10:55:00,724 INFO L78 Accepts]: Start accepts. Automaton has 12503 states and 40259 transitions. Word has length 39 [2022-09-16 10:55:00,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:00,725 INFO L495 AbstractCegarLoop]: Abstraction has 12503 states and 40259 transitions. [2022-09-16 10:55:00,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:55:00,725 INFO L276 IsEmpty]: Start isEmpty. Operand 12503 states and 40259 transitions. [2022-09-16 10:55:00,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-09-16 10:55:00,734 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:00,735 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:55:00,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:55:00,735 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 10:55:00,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:00,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1503955218, now seen corresponding path program 1 times [2022-09-16 10:55:00,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:00,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889047698] [2022-09-16 10:55:00,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:00,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:00,784 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:55:00,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:00,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889047698] [2022-09-16 10:55:00,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889047698] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:55:00,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598736095] [2022-09-16 10:55:00,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:00,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:55:00,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:55:00,789 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:55:00,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-16 10:55:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:00,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:55:00,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:55:00,906 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:55:00,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:55:01,041 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:55:01,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598736095] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:55:01,041 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:55:01,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-09-16 10:55:01,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304671741] [2022-09-16 10:55:01,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:55:01,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-09-16 10:55:01,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:01,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-09-16 10:55:01,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=47, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:55:01,045 INFO L87 Difference]: Start difference. First operand 12503 states and 40259 transitions. Second operand has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:55:01,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:01,657 INFO L93 Difference]: Finished difference Result 51293 states and 164646 transitions. [2022-09-16 10:55:01,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-16 10:55:01,658 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 10 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 44 [2022-09-16 10:55:01,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:02,080 INFO L225 Difference]: With dead ends: 51293 [2022-09-16 10:55:02,080 INFO L226 Difference]: Without dead ends: 51293 [2022-09-16 10:55:02,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=47, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:55:02,082 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 809 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:02,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 436 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:55:02,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51293 states. [2022-09-16 10:55:03,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51293 to 43183. [2022-09-16 10:55:03,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43183 states, 43175 states have (on average 3.312426172553561) internal successors, (143014), 43182 states have internal predecessors, (143014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:55:03,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43183 states to 43183 states and 143014 transitions. [2022-09-16 10:55:03,982 INFO L78 Accepts]: Start accepts. Automaton has 43183 states and 143014 transitions. Word has length 44 [2022-09-16 10:55:03,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:03,982 INFO L495 AbstractCegarLoop]: Abstraction has 43183 states and 143014 transitions. [2022-09-16 10:55:03,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:55:03,982 INFO L276 IsEmpty]: Start isEmpty. Operand 43183 states and 143014 transitions. [2022-09-16 10:55:03,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-09-16 10:55:03,992 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:03,992 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:55:04,018 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 10:55:04,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:55:04,208 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 10:55:04,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:04,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1614310355, now seen corresponding path program 1 times [2022-09-16 10:55:04,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:04,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593650107] [2022-09-16 10:55:04,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:04,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:04,257 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:55:04,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:04,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593650107] [2022-09-16 10:55:04,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593650107] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:55:04,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:55:04,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:55:04,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90057343] [2022-09-16 10:55:04,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:55:04,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:55:04,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:04,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:55:04,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:55:04,259 INFO L87 Difference]: Start difference. First operand 43183 states and 143014 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:55:04,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:04,993 INFO L93 Difference]: Finished difference Result 56018 states and 183365 transitions. [2022-09-16 10:55:04,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:55:04,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2022-09-16 10:55:04,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:05,353 INFO L225 Difference]: With dead ends: 56018 [2022-09-16 10:55:05,353 INFO L226 Difference]: Without dead ends: 56018 [2022-09-16 10:55:05,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:55:05,354 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 38 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:05,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 136 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:55:05,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56018 states. [2022-09-16 10:55:06,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56018 to 48209. [2022-09-16 10:55:06,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48209 states, 48201 states have (on average 3.340179664322317) internal successors, (161000), 48208 states have internal predecessors, (161000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:55:07,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48209 states to 48209 states and 161000 transitions. [2022-09-16 10:55:07,160 INFO L78 Accepts]: Start accepts. Automaton has 48209 states and 161000 transitions. Word has length 44 [2022-09-16 10:55:07,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:07,161 INFO L495 AbstractCegarLoop]: Abstraction has 48209 states and 161000 transitions. [2022-09-16 10:55:07,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:55:07,161 INFO L276 IsEmpty]: Start isEmpty. Operand 48209 states and 161000 transitions. [2022-09-16 10:55:07,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-09-16 10:55:07,169 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:07,169 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-09-16 10:55:07,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 10:55:07,169 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 10:55:07,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:07,169 INFO L85 PathProgramCache]: Analyzing trace with hash -54819256, now seen corresponding path program 1 times [2022-09-16 10:55:07,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:07,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542721377] [2022-09-16 10:55:07,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:07,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:07,207 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:55:07,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:07,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542721377] [2022-09-16 10:55:07,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542721377] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:55:07,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899522586] [2022-09-16 10:55:07,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:07,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:55:07,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:55:07,209 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:55:07,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-16 10:55:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:07,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:55:07,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:55:07,313 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:55:07,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:55:07,373 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:55:07,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899522586] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:55:07,373 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:55:07,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-09-16 10:55:07,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039557731] [2022-09-16 10:55:07,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:55:07,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-09-16 10:55:07,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:07,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-09-16 10:55:07,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:55:07,375 INFO L87 Difference]: Start difference. First operand 48209 states and 161000 transitions. Second operand has 9 states, 8 states have (on average 12.75) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:55:09,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:09,020 INFO L93 Difference]: Finished difference Result 151478 states and 498718 transitions. [2022-09-16 10:55:09,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 10:55:09,020 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.75) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 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 44 [2022-09-16 10:55:09,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:10,287 INFO L225 Difference]: With dead ends: 151478 [2022-09-16 10:55:10,287 INFO L226 Difference]: Without dead ends: 151478 [2022-09-16 10:55:10,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:55:10,288 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 575 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:10,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 374 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:55:10,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151478 states. [2022-09-16 10:55:13,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151478 to 120634. [2022-09-16 10:55:14,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120634 states, 120626 states have (on average 3.3219455175501134) internal successors, (400713), 120633 states have internal predecessors, (400713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:55:15,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120634 states to 120634 states and 400713 transitions. [2022-09-16 10:55:15,036 INFO L78 Accepts]: Start accepts. Automaton has 120634 states and 400713 transitions. Word has length 44 [2022-09-16 10:55:15,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:15,036 INFO L495 AbstractCegarLoop]: Abstraction has 120634 states and 400713 transitions. [2022-09-16 10:55:15,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.75) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:55:15,037 INFO L276 IsEmpty]: Start isEmpty. Operand 120634 states and 400713 transitions. [2022-09-16 10:55:15,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-09-16 10:55:15,118 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:15,118 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-09-16 10:55:15,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-16 10:55:15,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:55:15,340 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 10:55:15,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:15,340 INFO L85 PathProgramCache]: Analyzing trace with hash 282773747, now seen corresponding path program 1 times [2022-09-16 10:55:15,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:15,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411642709] [2022-09-16 10:55:15,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:15,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:15,414 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:55:15,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:15,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411642709] [2022-09-16 10:55:15,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411642709] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:55:15,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833343077] [2022-09-16 10:55:15,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:15,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:55:15,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:55:15,416 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:55:15,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-16 10:55:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:15,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:55:15,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:55:15,531 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:55:15,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:55:15,606 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:55:15,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833343077] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:55:15,606 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:55:15,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-09-16 10:55:15,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819008564] [2022-09-16 10:55:15,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:55:15,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 10:55:15,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:15,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 10:55:15,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:55:15,610 INFO L87 Difference]: Start difference. First operand 120634 states and 400713 transitions. Second operand has 11 states, 10 states have (on average 12.8) internal successors, (128), 11 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:55:23,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:23,775 INFO L93 Difference]: Finished difference Result 682440 states and 2276421 transitions. [2022-09-16 10:55:23,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 10:55:23,776 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.8) internal successors, (128), 11 states have internal predecessors, (128), 0 states have call successors, (0), 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 53 [2022-09-16 10:55:23,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:29,949 INFO L225 Difference]: With dead ends: 682440 [2022-09-16 10:55:29,949 INFO L226 Difference]: Without dead ends: 682440 [2022-09-16 10:55:29,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:55:29,950 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 672 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:29,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 431 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:55:31,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682440 states. [2022-09-16 10:55:55,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682440 to 614353. [2022-09-16 10:55:57,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614353 states, 614345 states have (on average 3.413192912777023) internal successors, (2096878), 614352 states have internal predecessors, (2096878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:56:07,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614353 states to 614353 states and 2096878 transitions. [2022-09-16 10:56:07,835 INFO L78 Accepts]: Start accepts. Automaton has 614353 states and 2096878 transitions. Word has length 53 [2022-09-16 10:56:07,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:56:07,835 INFO L495 AbstractCegarLoop]: Abstraction has 614353 states and 2096878 transitions. [2022-09-16 10:56:07,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.8) internal successors, (128), 11 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:56:07,836 INFO L276 IsEmpty]: Start isEmpty. Operand 614353 states and 2096878 transitions. [2022-09-16 10:56:08,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-09-16 10:56:08,018 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:56:08,019 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:56:08,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-09-16 10:56:08,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:56:08,236 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-09-16 10:56:08,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:56:08,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1617284891, now seen corresponding path program 1 times [2022-09-16 10:56:08,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:56:08,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762088253] [2022-09-16 10:56:08,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:56:08,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:56:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:56:08,382 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:56:08,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:56:08,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762088253] [2022-09-16 10:56:08,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762088253] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:56:08,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850024112] [2022-09-16 10:56:08,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:56:08,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:56:08,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:56:08,396 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:56:08,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-16 10:56:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:56:08,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 10:56:08,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:56:08,605 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:56:08,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:56:08,716 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:56:08,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850024112] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:56:08,716 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:56:08,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-09-16 10:56:08,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815997696] [2022-09-16 10:56:08,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:56:08,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-09-16 10:56:08,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:56:08,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-09-16 10:56:08,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=93, Unknown=0, NotChecked=0, Total=182 [2022-09-16 10:56:08,719 INFO L87 Difference]: Start difference. First operand 614353 states and 2096878 transitions. Second operand has 14 states, 13 states have (on average 10.076923076923077) internal successors, (131), 14 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:56:47,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:56:47,878 INFO L93 Difference]: Finished difference Result 1775292 states and 6010435 transitions. [2022-09-16 10:56:47,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-16 10:56:47,904 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.076923076923077) internal successors, (131), 14 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-09-16 10:56:47,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:57:19,584 INFO L225 Difference]: With dead ends: 1775292 [2022-09-16 10:57:19,584 INFO L226 Difference]: Without dead ends: 1775292 [2022-09-16 10:57:19,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=93, Unknown=0, NotChecked=0, Total=182 [2022-09-16 10:57:19,592 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 856 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:57:19,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 660 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:57:24,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775292 states.