/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf -i ../sv-benchmarks/c/weaver/popl20-more/sum-array-hom.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-06 21:36:46,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-06 21:36:46,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-06 21:36:46,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-06 21:36:46,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-06 21:36:46,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-06 21:36:46,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-06 21:36:46,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-06 21:36:46,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-06 21:36:46,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-06 21:36:46,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-06 21:36:46,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-06 21:36:46,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-06 21:36:46,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-06 21:36:46,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-06 21:36:46,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-06 21:36:46,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-06 21:36:46,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-06 21:36:46,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-06 21:36:46,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-06 21:36:46,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-06 21:36:46,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-06 21:36:46,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-06 21:36:46,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-06 21:36:46,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-06 21:36:46,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-06 21:36:46,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-06 21:36:46,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-06 21:36:46,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-06 21:36:46,188 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-06 21:36:46,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-06 21:36:46,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-06 21:36:46,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-06 21:36:46,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-06 21:36:46,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-06 21:36:46,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-06 21:36:46,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-06 21:36:46,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-06 21:36:46,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-06 21:36:46,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-06 21:36:46,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-06 21:36:46,206 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-06 21:36:46,253 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-06 21:36:46,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-06 21:36:46,254 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-06 21:36:46,255 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-06 21:36:46,259 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-06 21:36:46,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-06 21:36:46,259 INFO L138 SettingsManager]: * Use SBE=true [2021-10-06 21:36:46,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-06 21:36:46,260 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-06 21:36:46,260 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-06 21:36:46,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-06 21:36:46,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-06 21:36:46,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-06 21:36:46,262 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-06 21:36:46,262 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-06 21:36:46,262 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-06 21:36:46,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-06 21:36:46,263 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-06 21:36:46,263 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-06 21:36:46,263 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-06 21:36:46,263 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-06 21:36:46,264 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-06 21:36:46,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-06 21:36:46,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-06 21:36:46,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-06 21:36:46,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 21:36:46,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-06 21:36:46,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-06 21:36:46,265 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-06 21:36:46,265 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-06 21:36:46,266 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-06 21:36:46,266 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-06 21:36:46,266 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-06 21:36:46,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-06 21:36:46,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-06 21:36:46,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-06 21:36:46,703 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-06 21:36:46,704 INFO L275 PluginConnector]: CDTParser initialized [2021-10-06 21:36:46,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more/sum-array-hom.wvr.c [2021-10-06 21:36:46,783 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e27158838/d9e6537abe934c65b64f009d9b7c3b33/FLAG7f7891dd6 [2021-10-06 21:36:47,501 INFO L306 CDTParser]: Found 1 translation units. [2021-10-06 21:36:47,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more/sum-array-hom.wvr.c [2021-10-06 21:36:47,514 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e27158838/d9e6537abe934c65b64f009d9b7c3b33/FLAG7f7891dd6 [2021-10-06 21:36:47,833 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e27158838/d9e6537abe934c65b64f009d9b7c3b33 [2021-10-06 21:36:47,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-06 21:36:47,846 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-06 21:36:47,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-06 21:36:47,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-06 21:36:47,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-06 21:36:47,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 09:36:47" (1/1) ... [2021-10-06 21:36:47,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54bfb084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:36:47, skipping insertion in model container [2021-10-06 21:36:47,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 09:36:47" (1/1) ... [2021-10-06 21:36:47,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-06 21:36:47,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-06 21:36:48,140 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more/sum-array-hom.wvr.c[2116,2129] [2021-10-06 21:36:48,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 21:36:48,165 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-06 21:36:48,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-06 21:36:48,185 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more/sum-array-hom.wvr.c[2116,2129] [2021-10-06 21:36:48,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 21:36:48,195 INFO L203 MainTranslator]: Completed pre-run [2021-10-06 21:36:48,221 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more/sum-array-hom.wvr.c[2116,2129] [2021-10-06 21:36:48,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 21:36:48,245 INFO L208 MainTranslator]: Completed translation [2021-10-06 21:36:48,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:36:48 WrapperNode [2021-10-06 21:36:48,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-06 21:36:48,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-06 21:36:48,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-06 21:36:48,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-06 21:36:48,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:36:48" (1/1) ... [2021-10-06 21:36:48,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:36:48" (1/1) ... [2021-10-06 21:36:48,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-06 21:36:48,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-06 21:36:48,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-06 21:36:48,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-06 21:36:48,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:36:48" (1/1) ... [2021-10-06 21:36:48,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:36:48" (1/1) ... [2021-10-06 21:36:48,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:36:48" (1/1) ... [2021-10-06 21:36:48,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:36:48" (1/1) ... [2021-10-06 21:36:48,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:36:48" (1/1) ... [2021-10-06 21:36:48,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:36:48" (1/1) ... [2021-10-06 21:36:48,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:36:48" (1/1) ... [2021-10-06 21:36:48,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-06 21:36:48,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-06 21:36:48,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-06 21:36:48,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-06 21:36:48,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:36:48" (1/1) ... [2021-10-06 21:36:48,346 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 21:36:48,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-06 21:36:48,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-06 21:36:48,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-06 21:36:48,446 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-06 21:36:48,446 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-06 21:36:48,446 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-06 21:36:48,446 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-06 21:36:48,446 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-06 21:36:48,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-06 21:36:48,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-06 21:36:48,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-06 21:36:48,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-06 21:36:48,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-06 21:36:48,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-06 21:36:48,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-06 21:36:48,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-06 21:36:48,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-06 21:36:48,450 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-06 21:36:49,144 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-06 21:36:49,144 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-06 21:36:49,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 09:36:49 BoogieIcfgContainer [2021-10-06 21:36:49,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-06 21:36:49,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-06 21:36:49,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-06 21:36:49,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-06 21:36:49,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 09:36:47" (1/3) ... [2021-10-06 21:36:49,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ee7f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 09:36:49, skipping insertion in model container [2021-10-06 21:36:49,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:36:48" (2/3) ... [2021-10-06 21:36:49,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ee7f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 09:36:49, skipping insertion in model container [2021-10-06 21:36:49,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 09:36:49" (3/3) ... [2021-10-06 21:36:49,156 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-array-hom.wvr.c [2021-10-06 21:36:49,163 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-06 21:36:49,163 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2021-10-06 21:36:49,163 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-06 21:36:49,235 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,235 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,236 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,239 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,239 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,240 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,240 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,240 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,240 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,241 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,243 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,244 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,244 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,244 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,244 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,245 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,246 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,246 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,246 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,247 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,247 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,247 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,247 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,247 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,248 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,248 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,248 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,249 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,253 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,253 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,254 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,254 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,254 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,254 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,255 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,255 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,255 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,258 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,259 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,259 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,259 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,259 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,259 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,260 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,260 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,260 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,260 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,260 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,261 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,264 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,264 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,264 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,265 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,265 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,266 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,268 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,268 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,268 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,269 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,269 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,269 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,269 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,274 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,275 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,275 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,275 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,276 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,276 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,276 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,276 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,276 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,277 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,277 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,277 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,277 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,277 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,278 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,278 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,282 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,283 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,283 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,283 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,283 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,294 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,294 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,294 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,294 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,295 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,297 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,297 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,297 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,298 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,298 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:36:49,308 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-06 21:36:49,370 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-06 21:36:49,385 INFO L339 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=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-06 21:36:49,385 INFO L340 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2021-10-06 21:36:49,419 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-06 21:36:49,433 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 154 places, 155 transitions, 334 flow [2021-10-06 21:36:49,436 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 154 places, 155 transitions, 334 flow [2021-10-06 21:36:49,438 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 154 places, 155 transitions, 334 flow [2021-10-06 21:36:49,565 INFO L129 PetriNetUnfolder]: 11/152 cut-off events. [2021-10-06 21:36:49,566 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-06 21:36:49,574 INFO L84 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 152 events. 11/152 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 179 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 107. Up to 2 conditions per place. [2021-10-06 21:36:49,583 INFO L116 LiptonReduction]: Number of co-enabled transitions 2418 [2021-10-06 21:37:07,534 INFO L131 LiptonReduction]: Checked pairs total: 2661 [2021-10-06 21:37:07,535 INFO L133 LiptonReduction]: Total number of compositions: 145 [2021-10-06 21:37:07,553 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 49 transitions, 122 flow [2021-10-06 21:37:07,636 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 750 states, 616 states have (on average 4.165584415584416) internal successors, (2566), 749 states have internal predecessors, (2566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:37:07,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 750 states, 616 states have (on average 4.165584415584416) internal successors, (2566), 749 states have internal predecessors, (2566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:37:07,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-06 21:37:07,650 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:37:07,651 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-06 21:37:07,651 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-06 21:37:07,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:37:07,658 INFO L82 PathProgramCache]: Analyzing trace with hash 18462, now seen corresponding path program 1 times [2021-10-06 21:37:07,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:37:07,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [525772983] [2021-10-06 21:37:07,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:37:07,675 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:37:07,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:37:07,678 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-06 21:37:07,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-06 21:37:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:37:07,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-06 21:37:07,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:37:08,453 INFO L354 Elim1Store]: treesize reduction 245, result has 17.2 percent of original size [2021-10-06 21:37:08,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 72 treesize of output 106 [2021-10-06 21:37:08,477 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-06 21:37:08,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 300 treesize of output 294 [2021-10-06 21:37:12,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:37:12,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:37:12,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:37:12,327 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:37:12,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [525772983] [2021-10-06 21:37:12,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [525772983] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:37:12,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:37:12,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-06 21:37:12,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960062095] [2021-10-06 21:37:12,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 21:37:12,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:37:12,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 21:37:12,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:37:12,356 INFO L87 Difference]: Start difference. First operand has 750 states, 616 states have (on average 4.165584415584416) internal successors, (2566), 749 states have internal predecessors, (2566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:37:12,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:37:12,671 INFO L93 Difference]: Finished difference Result 623 states and 2064 transitions. [2021-10-06 21:37:12,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 21:37:12,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 2 [2021-10-06 21:37:12,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:37:12,700 INFO L225 Difference]: With dead ends: 623 [2021-10-06 21:37:12,700 INFO L226 Difference]: Without dead ends: 623 [2021-10-06 21:37:12,702 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:37:12,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2021-10-06 21:37:12,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 623. [2021-10-06 21:37:12,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 518 states have (on average 3.9845559845559846) internal successors, (2064), 622 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:37:12,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 2064 transitions. [2021-10-06 21:37:12,805 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 2064 transitions. Word has length 2 [2021-10-06 21:37:12,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:37:12,807 INFO L470 AbstractCegarLoop]: Abstraction has 623 states and 2064 transitions. [2021-10-06 21:37:12,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:37:12,807 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 2064 transitions. [2021-10-06 21:37:12,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-06 21:37:12,808 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:37:12,808 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-06 21:37:12,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-06 21:37:13,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 21:37:13,010 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-06 21:37:13,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:37:13,011 INFO L82 PathProgramCache]: Analyzing trace with hash 18383, now seen corresponding path program 1 times [2021-10-06 21:37:13,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:37:13,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474832123] [2021-10-06 21:37:13,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:37:13,012 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:37:13,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:37:13,013 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-06 21:37:13,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-06 21:37:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:37:13,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-06 21:37:13,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:37:13,287 INFO L354 Elim1Store]: treesize reduction 350, result has 15.7 percent of original size [2021-10-06 21:37:13,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 70 [2021-10-06 21:37:13,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:37:13,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:37:13,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:37:13,861 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:37:13,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474832123] [2021-10-06 21:37:13,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [474832123] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:37:13,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:37:13,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-06 21:37:13,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973925565] [2021-10-06 21:37:13,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-06 21:37:13,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:37:13,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-06 21:37:13,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 21:37:13,865 INFO L87 Difference]: Start difference. First operand 623 states and 2064 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:37:13,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:37:13,983 INFO L93 Difference]: Finished difference Result 622 states and 2063 transitions. [2021-10-06 21:37:13,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 21:37:13,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2021-10-06 21:37:13,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:37:13,992 INFO L225 Difference]: With dead ends: 622 [2021-10-06 21:37:13,993 INFO L226 Difference]: Without dead ends: 622 [2021-10-06 21:37:13,994 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 21:37:13,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2021-10-06 21:37:14,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 622. [2021-10-06 21:37:14,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 518 states have (on average 3.9826254826254828) internal successors, (2063), 621 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:37:14,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 2063 transitions. [2021-10-06 21:37:14,043 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 2063 transitions. Word has length 2 [2021-10-06 21:37:14,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:37:14,044 INFO L470 AbstractCegarLoop]: Abstraction has 622 states and 2063 transitions. [2021-10-06 21:37:14,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:37:14,044 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 2063 transitions. [2021-10-06 21:37:14,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-06 21:37:14,045 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:37:14,045 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-06 21:37:14,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-06 21:37:14,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 21:37:14,257 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-06 21:37:14,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:37:14,259 INFO L82 PathProgramCache]: Analyzing trace with hash 18463, now seen corresponding path program 1 times [2021-10-06 21:37:14,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:37:14,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508186855] [2021-10-06 21:37:14,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:37:14,261 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:37:14,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:37:14,264 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-06 21:37:14,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-06 21:37:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:37:14,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-06 21:37:14,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:37:14,576 INFO L354 Elim1Store]: treesize reduction 358, result has 15.4 percent of original size [2021-10-06 21:37:14,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 9 case distinctions, treesize of input 277 treesize of output 312 [2021-10-06 21:37:18,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:37:18,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:37:18,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:37:18,175 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:37:18,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508186855] [2021-10-06 21:37:18,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508186855] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:37:18,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:37:18,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-06 21:37:18,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670591430] [2021-10-06 21:37:18,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 21:37:18,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:37:18,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 21:37:18,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:37:18,178 INFO L87 Difference]: Start difference. First operand 622 states and 2063 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:37:18,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:37:18,384 INFO L93 Difference]: Finished difference Result 496 states and 1562 transitions. [2021-10-06 21:37:18,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 21:37:18,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 2 [2021-10-06 21:37:18,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:37:18,392 INFO L225 Difference]: With dead ends: 496 [2021-10-06 21:37:18,392 INFO L226 Difference]: Without dead ends: 496 [2021-10-06 21:37:18,392 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:37:18,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2021-10-06 21:37:18,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2021-10-06 21:37:18,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 420 states have (on average 3.719047619047619) internal successors, (1562), 495 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:37:18,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 1562 transitions. [2021-10-06 21:37:18,414 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 1562 transitions. Word has length 2 [2021-10-06 21:37:18,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:37:18,414 INFO L470 AbstractCegarLoop]: Abstraction has 496 states and 1562 transitions. [2021-10-06 21:37:18,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:37:18,415 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 1562 transitions. [2021-10-06 21:37:18,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-06 21:37:18,415 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:37:18,415 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-06 21:37:18,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-06 21:37:18,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 21:37:18,628 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 27 more)] === [2021-10-06 21:37:18,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:37:18,629 INFO L82 PathProgramCache]: Analyzing trace with hash 18384, now seen corresponding path program 1 times [2021-10-06 21:37:18,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:37:18,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997294848] [2021-10-06 21:37:18,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:37:18,631 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:37:18,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:37:18,634 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-06 21:37:18,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-06 21:37:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-06 21:37:18,706 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-06 21:37:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-06 21:37:18,795 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-06 21:37:18,796 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-06 21:37:18,800 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-06 21:37:18,806 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0REQUIRES_VIOLATION [2021-10-06 21:37:18,806 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1REQUIRES_VIOLATION [2021-10-06 21:37:18,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATION [2021-10-06 21:37:18,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATION [2021-10-06 21:37:18,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0REQUIRES_VIOLATION [2021-10-06 21:37:18,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1REQUIRES_VIOLATION [2021-10-06 21:37:18,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-06 21:37:18,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-06 21:37:18,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-06 21:37:18,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-06 21:37:18,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-06 21:37:18,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-06 21:37:18,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-06 21:37:18,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-06 21:37:18,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-06 21:37:18,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-06 21:37:18,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-06 21:37:18,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-10-06 21:37:18,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-10-06 21:37:18,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK [2021-10-06 21:37:18,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK [2021-10-06 21:37:18,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-06 21:37:18,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-06 21:37:18,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-06 21:37:18,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0REQUIRES_VIOLATION [2021-10-06 21:37:18,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1REQUIRES_VIOLATION [2021-10-06 21:37:18,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATION [2021-10-06 21:37:18,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATION [2021-10-06 21:37:18,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0REQUIRES_VIOLATION [2021-10-06 21:37:18,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1REQUIRES_VIOLATION [2021-10-06 21:37:18,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-06 21:37:19,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 21:37:19,040 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-06 21:37:19,040 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-06 21:37:19,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 09:37:19 BasicIcfg [2021-10-06 21:37:19,063 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-06 21:37:19,066 INFO L168 Benchmark]: Toolchain (without parser) took 31223.76 ms. Allocated memory was 168.8 MB in the beginning and 203.4 MB in the end (delta: 34.6 MB). Free memory was 143.9 MB in the beginning and 125.2 MB in the end (delta: 18.8 MB). Peak memory consumption was 54.1 MB. Max. memory is 8.0 GB. [2021-10-06 21:37:19,069 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 168.8 MB. Free memory is still 148.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-06 21:37:19,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.97 ms. Allocated memory is still 168.8 MB. Free memory was 143.5 MB in the beginning and 131.1 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-06 21:37:19,075 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.00 ms. Allocated memory is still 168.8 MB. Free memory was 130.9 MB in the beginning and 129.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-06 21:37:19,079 INFO L168 Benchmark]: Boogie Preprocessor took 40.41 ms. Allocated memory is still 168.8 MB. Free memory was 129.3 MB in the beginning and 127.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-06 21:37:19,080 INFO L168 Benchmark]: RCFGBuilder took 811.24 ms. Allocated memory is still 168.8 MB. Free memory was 127.6 MB in the beginning and 148.1 MB in the end (delta: -20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-10-06 21:37:19,082 INFO L168 Benchmark]: TraceAbstraction took 29914.20 ms. Allocated memory was 168.8 MB in the beginning and 203.4 MB in the end (delta: 34.6 MB). Free memory was 147.6 MB in the beginning and 125.2 MB in the end (delta: 22.4 MB). Peak memory consumption was 58.6 MB. Max. memory is 8.0 GB. [2021-10-06 21:37:19,089 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 168.8 MB. Free memory is still 148.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 394.97 ms. Allocated memory is still 168.8 MB. Free memory was 143.5 MB in the beginning and 131.1 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 47.00 ms. Allocated memory is still 168.8 MB. Free memory was 130.9 MB in the beginning and 129.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 40.41 ms. Allocated memory is still 168.8 MB. Free memory was 129.3 MB in the beginning and 127.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 811.24 ms. Allocated memory is still 168.8 MB. Free memory was 127.6 MB in the beginning and 148.1 MB in the end (delta: -20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 29914.20 ms. Allocated memory was 168.8 MB in the beginning and 203.4 MB in the end (delta: 34.6 MB). Free memory was 147.6 MB in the beginning and 125.2 MB in the end (delta: 22.4 MB). Peak memory consumption was 58.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18098.8ms, 154 PlacesBefore, 55 PlacesAfterwards, 155 TransitionsBefore, 49 TransitionsAfterwards, 2418 CoEnabledTransitionPairs, 6 FixpointIterations, 76 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 6 ConcurrentYvCompositions, 7 ChoiceCompositions, 145 TotalNumberOfCompositions, 2661 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2492, positive: 2466, positive conditional: 0, positive unconditional: 2466, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1356, positive: 1347, positive conditional: 0, positive unconditional: 1347, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1356, positive: 1347, positive conditional: 0, positive unconditional: 1347, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 613, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 613, negative conditional: 0, negative unconditional: 613, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2492, positive: 1119, positive conditional: 0, positive unconditional: 1119, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 1356, unknown conditional: 0, unknown unconditional: 1356] , Statistics on independence cache: Total cache size (in pairs): 117, Positive cache size: 115, Positive conditional cache size: 0, Positive unconditional cache size: 115, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 87]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L37] int* A; [L38] int sum1, sum2, sum3, M, N; [L61] pthread_t t1, t2, t3; [L64] M = __VERIFIER_nondet_int() [L65] N = __VERIFIER_nondet_int() [L34] COND FALSE !(!cond) [L85] int* arr = (int*)malloc(sizeof(int) * size); [L86] int i = 0; VAL [A={0:0}, N=1073741824, sum1=0, sum2=0, sum3=0] [L86] COND TRUE i < size [L87] arr[i] = __VERIFIER_nondet_int() - UnprovableResult [Line: 44]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 75]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 75]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 76]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 76]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 79]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 184 locations, 31 error locations. Started 1 CEGAR loops. OverallTime: 29669.9ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 14.2ms, AutomataDifference: 707.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18251.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 65 SDtfs, 119 SDslu, 0 SDs, 0 SdLazy, 57 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 476.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 104.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=750occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 157.2ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 46.8ms SsaConstructionTime, 152.8ms SatisfiabilityAnalysisTime, 9132.4ms InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 6 ConstructedInterpolants, 2 QuantifiedInterpolants, 196 SizeOfPredicates, 17 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-06 21:37:19,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...