/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/unroll-cond-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-08 18:20:32,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-08 18:20:32,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-08 18:20:32,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-08 18:20:32,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-08 18:20:32,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-08 18:20:32,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-08 18:20:32,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-08 18:20:32,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-08 18:20:32,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-08 18:20:32,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-08 18:20:32,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-08 18:20:32,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-08 18:20:32,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-08 18:20:32,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-08 18:20:32,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-08 18:20:32,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-08 18:20:32,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-08 18:20:32,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-08 18:20:32,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-08 18:20:32,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-08 18:20:32,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-08 18:20:32,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-08 18:20:32,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-08 18:20:32,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-08 18:20:32,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-08 18:20:32,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-08 18:20:32,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-08 18:20:32,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-08 18:20:32,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-08 18:20:32,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-08 18:20:32,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-08 18:20:32,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-08 18:20:32,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-08 18:20:32,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-08 18:20:32,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-08 18:20:32,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-08 18:20:32,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-08 18:20:32,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-08 18:20:32,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-08 18:20:32,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-08 18:20:32,230 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-08 18:20:32,282 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-08 18:20:32,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-08 18:20:32,284 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-08 18:20:32,284 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-08 18:20:32,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-08 18:20:32,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-08 18:20:32,289 INFO L138 SettingsManager]: * Use SBE=true [2021-10-08 18:20:32,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-08 18:20:32,289 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-08 18:20:32,290 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-08 18:20:32,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-08 18:20:32,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-08 18:20:32,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-08 18:20:32,292 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-08 18:20:32,292 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-08 18:20:32,292 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-08 18:20:32,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-08 18:20:32,293 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-08 18:20:32,293 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-08 18:20:32,293 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-08 18:20:32,293 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-08 18:20:32,293 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-08 18:20:32,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-08 18:20:32,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-08 18:20:32,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-08 18:20:32,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 18:20:32,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-08 18:20:32,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-08 18:20:32,295 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-08 18:20:32,295 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-08 18:20:32,295 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-08 18:20:32,295 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-08 18:20:32,296 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-08 18:20:32,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-08 18:20:32,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-08 18:20:32,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-08 18:20:32,769 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-08 18:20:32,769 INFO L275 PluginConnector]: CDTParser initialized [2021-10-08 18:20:32,770 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2021-10-08 18:20:32,863 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b7ebdf0e9/a570baa894fe48fbb038576f3bace4b3/FLAGd1fb89e17 [2021-10-08 18:20:33,554 INFO L306 CDTParser]: Found 1 translation units. [2021-10-08 18:20:33,555 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2021-10-08 18:20:33,569 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b7ebdf0e9/a570baa894fe48fbb038576f3bace4b3/FLAGd1fb89e17 [2021-10-08 18:20:33,926 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b7ebdf0e9/a570baa894fe48fbb038576f3bace4b3 [2021-10-08 18:20:33,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-08 18:20:33,941 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-08 18:20:33,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-08 18:20:33,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-08 18:20:33,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-08 18:20:33,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 06:20:33" (1/1) ... [2021-10-08 18:20:33,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7304aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 06:20:33, skipping insertion in model container [2021-10-08 18:20:33,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 06:20:33" (1/1) ... [2021-10-08 18:20:33,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-08 18:20:34,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-08 18:20:34,267 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/unroll-cond-4.wvr.c[2906,2919] [2021-10-08 18:20:34,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 18:20:34,292 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-08 18:20:34,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-08 18:20:34,322 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/unroll-cond-4.wvr.c[2906,2919] [2021-10-08 18:20:34,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 18:20:34,332 INFO L203 MainTranslator]: Completed pre-run [2021-10-08 18:20:34,363 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/unroll-cond-4.wvr.c[2906,2919] [2021-10-08 18:20:34,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 18:20:34,388 INFO L208 MainTranslator]: Completed translation [2021-10-08 18:20:34,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 06:20:34 WrapperNode [2021-10-08 18:20:34,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-08 18:20:34,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-08 18:20:34,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-08 18:20:34,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-08 18:20:34,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 06:20:34" (1/1) ... [2021-10-08 18:20:34,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 06:20:34" (1/1) ... [2021-10-08 18:20:34,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-08 18:20:34,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-08 18:20:34,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-08 18:20:34,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-08 18:20:34,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 06:20:34" (1/1) ... [2021-10-08 18:20:34,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 06:20:34" (1/1) ... [2021-10-08 18:20:34,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 06:20:34" (1/1) ... [2021-10-08 18:20:34,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 06:20:34" (1/1) ... [2021-10-08 18:20:34,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 06:20:34" (1/1) ... [2021-10-08 18:20:34,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 06:20:34" (1/1) ... [2021-10-08 18:20:34,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 06:20:34" (1/1) ... [2021-10-08 18:20:34,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-08 18:20:34,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-08 18:20:34,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-08 18:20:34,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-08 18:20:34,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 06:20:34" (1/1) ... [2021-10-08 18:20:34,513 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 18:20:34,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 18:20:34,546 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) [2021-10-08 18:20:34,578 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 [2021-10-08 18:20:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-08 18:20:34,622 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-08 18:20:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-08 18:20:34,623 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-08 18:20:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-08 18:20:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-08 18:20:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-08 18:20:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-08 18:20:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-08 18:20:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-08 18:20:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-08 18:20:34,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-08 18:20:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-08 18:20:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-08 18:20:34,627 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-08 18:20:36,763 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-08 18:20:36,763 INFO L299 CfgBuilder]: Removed 33 assume(true) statements. [2021-10-08 18:20:36,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 06:20:36 BoogieIcfgContainer [2021-10-08 18:20:36,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-08 18:20:36,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-08 18:20:36,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-08 18:20:36,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-08 18:20:36,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.10 06:20:33" (1/3) ... [2021-10-08 18:20:36,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b260a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 06:20:36, skipping insertion in model container [2021-10-08 18:20:36,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 06:20:34" (2/3) ... [2021-10-08 18:20:36,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b260a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 06:20:36, skipping insertion in model container [2021-10-08 18:20:36,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 06:20:36" (3/3) ... [2021-10-08 18:20:36,778 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-cond-4.wvr.c [2021-10-08 18:20:36,785 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-08 18:20:36,785 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2021-10-08 18:20:36,785 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-08 18:20:36,848 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,848 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,849 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,849 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,849 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,850 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,850 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,850 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,851 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,851 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,853 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,854 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,857 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,857 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,857 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,858 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,858 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,858 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,859 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,859 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,859 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,859 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,860 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,861 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,861 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,862 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,862 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,862 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,863 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,864 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,865 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,865 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,865 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,865 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,865 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,866 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,866 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,866 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,866 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,866 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,867 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,867 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,867 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,867 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,867 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,868 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,868 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,868 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,868 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,869 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,869 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,870 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,870 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,870 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,870 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,871 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,871 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,872 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,872 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,872 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,872 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,872 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,874 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,874 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,875 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,875 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,875 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,875 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,875 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,876 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,876 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,876 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,877 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,877 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,877 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,877 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,878 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,878 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,878 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,878 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,879 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,879 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,880 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,880 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,880 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,881 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,881 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,881 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,881 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,882 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,883 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,884 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,887 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,893 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,894 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,894 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,895 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,895 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,895 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,895 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,895 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,896 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,896 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,896 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,897 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,897 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,898 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,898 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,898 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,898 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,899 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,899 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,899 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,899 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,900 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,900 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,900 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,901 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,903 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,903 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,903 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,904 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,904 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,904 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,904 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,904 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,905 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,905 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,905 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,905 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,905 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,906 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,906 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,907 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,907 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,908 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,908 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,908 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,908 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,908 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,909 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,909 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,910 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,910 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,910 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,910 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,910 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,911 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,911 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,911 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,911 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,912 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,913 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,916 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,917 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,917 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,917 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,918 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,918 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,918 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,918 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,919 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,919 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,919 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,919 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,919 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,920 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,920 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,920 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,920 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,920 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,920 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,921 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,921 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,921 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,921 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,926 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,926 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,926 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,927 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,927 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,958 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,965 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,965 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,965 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,965 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,965 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,966 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,966 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,966 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,966 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,966 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,967 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,967 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,967 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,967 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,967 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,968 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,968 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,968 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 18:20:36,989 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-08 18:20:37,066 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-08 18:20:37,079 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 [2021-10-08 18:20:37,080 INFO L340 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2021-10-08 18:20:37,108 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-08 18:20:37,122 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 170 places, 179 transitions, 374 flow [2021-10-08 18:20:37,126 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 170 places, 179 transitions, 374 flow [2021-10-08 18:20:37,129 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 170 places, 179 transitions, 374 flow [2021-10-08 18:20:37,249 INFO L129 PetriNetUnfolder]: 16/177 cut-off events. [2021-10-08 18:20:37,249 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-08 18:20:37,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 177 events. 16/177 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 343 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2021-10-08 18:20:37,270 INFO L116 LiptonReduction]: Number of co-enabled transitions 2440 [2021-10-08 18:21:38,757 INFO L131 LiptonReduction]: Checked pairs total: 3053 [2021-10-08 18:21:38,757 INFO L133 LiptonReduction]: Total number of compositions: 213 [2021-10-08 18:21:38,768 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 45 transitions, 106 flow [2021-10-08 18:21:38,798 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 346 states, 170 states have (on average 5.147058823529412) internal successors, (875), 345 states have internal predecessors, (875), 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) [2021-10-08 18:21:38,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 346 states, 170 states have (on average 5.147058823529412) internal successors, (875), 345 states have internal predecessors, (875), 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) [2021-10-08 18:21:38,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-08 18:21:38,808 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 18:21:38,809 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-08 18:21:38,809 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-08 18:21:38,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 18:21:38,816 INFO L82 PathProgramCache]: Analyzing trace with hash 28258, now seen corresponding path program 1 times [2021-10-08 18:21:38,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 18:21:38,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769024132] [2021-10-08 18:21:38,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 18:21:38,831 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 18:21:38,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 18:21:38,839 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) [2021-10-08 18:21:38,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-08 18:21:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 18:21:38,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-08 18:21:38,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 18:21:39,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:21:39,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 18:21:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:21:39,130 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 18:21:39,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769024132] [2021-10-08 18:21:39,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769024132] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 18:21:39,132 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 18:21:39,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-08 18:21:39,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775020559] [2021-10-08 18:21:39,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 18:21:39,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 18:21:39,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 18:21:39,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 18:21:39,166 INFO L87 Difference]: Start difference. First operand has 346 states, 170 states have (on average 5.147058823529412) internal successors, (875), 345 states have internal predecessors, (875), 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) [2021-10-08 18:21:39,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 18:21:39,325 INFO L93 Difference]: Finished difference Result 288 states and 721 transitions. [2021-10-08 18:21:39,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 18:21:39,332 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 [2021-10-08 18:21:39,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 18:21:39,358 INFO L225 Difference]: With dead ends: 288 [2021-10-08 18:21:39,358 INFO L226 Difference]: Without dead ends: 288 [2021-10-08 18:21:39,359 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 18:21:39,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-10-08 18:21:39,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 286. [2021-10-08 18:21:39,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 144 states have (on average 5.006944444444445) internal successors, (721), 285 states have internal predecessors, (721), 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) [2021-10-08 18:21:39,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 721 transitions. [2021-10-08 18:21:39,475 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 721 transitions. Word has length 2 [2021-10-08 18:21:39,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 18:21:39,476 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 721 transitions. [2021-10-08 18:21:39,476 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) [2021-10-08 18:21:39,476 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 721 transitions. [2021-10-08 18:21:39,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-08 18:21:39,476 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 18:21:39,476 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-08 18:21:39,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-08 18:21:39,677 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 [2021-10-08 18:21:39,678 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-08 18:21:39,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 18:21:39,679 INFO L82 PathProgramCache]: Analyzing trace with hash 28116, now seen corresponding path program 1 times [2021-10-08 18:21:39,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 18:21:39,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2101872346] [2021-10-08 18:21:39,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 18:21:39,682 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 18:21:39,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 18:21:39,683 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) [2021-10-08 18:21:39,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-08 18:21:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 18:21:39,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-08 18:21:39,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 18:21:40,060 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-08 18:21:40,061 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 4 case distinctions, treesize of input 27 treesize of output 65 [2021-10-08 18:21:40,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:21:40,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 18:21:40,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:21:40,261 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 18:21:40,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2101872346] [2021-10-08 18:21:40,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2101872346] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 18:21:40,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 18:21:40,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-08 18:21:40,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705078703] [2021-10-08 18:21:40,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 18:21:40,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 18:21:40,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 18:21:40,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 18:21:40,265 INFO L87 Difference]: Start difference. First operand 286 states and 721 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) [2021-10-08 18:21:40,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 18:21:40,870 INFO L93 Difference]: Finished difference Result 287 states and 720 transitions. [2021-10-08 18:21:40,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 18:21:40,874 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 [2021-10-08 18:21:40,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 18:21:40,881 INFO L225 Difference]: With dead ends: 287 [2021-10-08 18:21:40,881 INFO L226 Difference]: Without dead ends: 287 [2021-10-08 18:21:40,882 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 83.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 18:21:40,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-10-08 18:21:40,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 286. [2021-10-08 18:21:40,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 144 states have (on average 5.0) internal successors, (720), 285 states have internal predecessors, (720), 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) [2021-10-08 18:21:40,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 720 transitions. [2021-10-08 18:21:40,926 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 720 transitions. Word has length 2 [2021-10-08 18:21:40,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 18:21:40,927 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 720 transitions. [2021-10-08 18:21:40,927 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) [2021-10-08 18:21:40,927 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 720 transitions. [2021-10-08 18:21:40,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-08 18:21:40,928 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 18:21:40,929 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-08 18:21:40,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-08 18:21:41,142 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 [2021-10-08 18:21:41,143 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-08 18:21:41,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 18:21:41,145 INFO L82 PathProgramCache]: Analyzing trace with hash 28117, now seen corresponding path program 1 times [2021-10-08 18:21:41,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 18:21:41,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711852961] [2021-10-08 18:21:41,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 18:21:41,148 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 18:21:41,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 18:21:41,151 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) [2021-10-08 18:21:41,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-08 18:21:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 18:21:41,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-08 18:21:41,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 18:21:41,419 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-08 18:21:41,420 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 5 case distinctions, treesize of input 21 treesize of output 59 [2021-10-08 18:21:41,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:21:41,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 18:21:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:21:41,920 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 18:21:41,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711852961] [2021-10-08 18:21:41,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711852961] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 18:21:41,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 18:21:41,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-08 18:21:41,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743811085] [2021-10-08 18:21:41,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 18:21:41,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 18:21:41,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 18:21:41,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 18:21:41,923 INFO L87 Difference]: Start difference. First operand 286 states and 720 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) [2021-10-08 18:21:42,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 18:21:42,486 INFO L93 Difference]: Finished difference Result 285 states and 718 transitions. [2021-10-08 18:21:42,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 18:21:42,488 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 [2021-10-08 18:21:42,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 18:21:42,490 INFO L225 Difference]: With dead ends: 285 [2021-10-08 18:21:42,490 INFO L226 Difference]: Without dead ends: 285 [2021-10-08 18:21:42,491 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 18:21:42,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-10-08 18:21:42,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2021-10-08 18:21:42,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 144 states have (on average 4.986111111111111) internal successors, (718), 284 states have internal predecessors, (718), 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) [2021-10-08 18:21:42,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 718 transitions. [2021-10-08 18:21:42,503 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 718 transitions. Word has length 2 [2021-10-08 18:21:42,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 18:21:42,503 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 718 transitions. [2021-10-08 18:21:42,503 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) [2021-10-08 18:21:42,503 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 718 transitions. [2021-10-08 18:21:42,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 18:21:42,504 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 18:21:42,504 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 18:21:42,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-08 18:21:42,718 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 [2021-10-08 18:21:42,719 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-08 18:21:42,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 18:21:42,720 INFO L82 PathProgramCache]: Analyzing trace with hash 876728, now seen corresponding path program 1 times [2021-10-08 18:21:42,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 18:21:42,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446594474] [2021-10-08 18:21:42,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 18:21:42,721 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 18:21:42,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 18:21:42,722 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) [2021-10-08 18:21:42,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-08 18:21:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 18:21:42,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-08 18:21:42,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 18:21:43,008 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-08 18:21:43,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 280 treesize of output 301 [2021-10-08 18:21:45,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 18:21:45,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 18:21:45,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 18:21:45,751 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 18:21:45,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446594474] [2021-10-08 18:21:45,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446594474] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 18:21:45,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 18:21:45,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-08 18:21:45,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147149229] [2021-10-08 18:21:45,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 18:21:45,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 18:21:45,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 18:21:45,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 18:21:45,753 INFO L87 Difference]: Start difference. First operand 285 states and 718 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-08 18:21:46,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 18:21:46,186 INFO L93 Difference]: Finished difference Result 232 states and 561 transitions. [2021-10-08 18:21:46,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 18:21:46,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 3 [2021-10-08 18:21:46,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 18:21:46,190 INFO L225 Difference]: With dead ends: 232 [2021-10-08 18:21:46,190 INFO L226 Difference]: Without dead ends: 232 [2021-10-08 18:21:46,191 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 18:21:46,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-10-08 18:21:46,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2021-10-08 18:21:46,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 128 states have (on average 4.3828125) internal successors, (561), 231 states have internal predecessors, (561), 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) [2021-10-08 18:21:46,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 561 transitions. [2021-10-08 18:21:46,200 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 561 transitions. Word has length 3 [2021-10-08 18:21:46,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 18:21:46,201 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 561 transitions. [2021-10-08 18:21:46,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-08 18:21:46,201 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 561 transitions. [2021-10-08 18:21:46,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 18:21:46,202 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 18:21:46,202 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 18:21:46,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-08 18:21:46,414 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 [2021-10-08 18:21:46,414 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-08 18:21:46,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 18:21:46,415 INFO L82 PathProgramCache]: Analyzing trace with hash 876729, now seen corresponding path program 1 times [2021-10-08 18:21:46,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 18:21:46,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [879534438] [2021-10-08 18:21:46,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 18:21:46,417 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 18:21:46,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 18:21:46,418 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 18:21:46,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-08 18:21:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 18:21:46,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-08 18:21:46,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 18:21:46,710 INFO L354 Elim1Store]: treesize reduction 147, result has 23.8 percent of original size [2021-10-08 18:21:46,711 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 4 case distinctions, treesize of input 45 treesize of output 77 [2021-10-08 18:21:46,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 140 [2021-10-08 18:21:48,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 18:21:48,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 18:21:48,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 18:21:48,458 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 18:21:48,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [879534438] [2021-10-08 18:21:48,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [879534438] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 18:21:48,459 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 18:21:48,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-08 18:21:48,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375246207] [2021-10-08 18:21:48,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 18:21:48,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 18:21:48,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 18:21:48,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 18:21:48,462 INFO L87 Difference]: Start difference. First operand 232 states and 561 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-08 18:21:48,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 18:21:48,941 INFO L93 Difference]: Finished difference Result 179 states and 404 transitions. [2021-10-08 18:21:48,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 18:21:48,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 3 [2021-10-08 18:21:48,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 18:21:48,944 INFO L225 Difference]: With dead ends: 179 [2021-10-08 18:21:48,944 INFO L226 Difference]: Without dead ends: 179 [2021-10-08 18:21:48,944 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 18:21:48,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-10-08 18:21:48,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2021-10-08 18:21:48,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 112 states have (on average 3.607142857142857) internal successors, (404), 178 states have internal predecessors, (404), 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) [2021-10-08 18:21:48,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 404 transitions. [2021-10-08 18:21:48,951 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 404 transitions. Word has length 3 [2021-10-08 18:21:48,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 18:21:48,951 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 404 transitions. [2021-10-08 18:21:48,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-08 18:21:48,952 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 404 transitions. [2021-10-08 18:21:48,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 18:21:48,952 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 18:21:48,952 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 18:21:48,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-08 18:21:49,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 18:21:49,165 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-08 18:21:49,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 18:21:49,166 INFO L82 PathProgramCache]: Analyzing trace with hash 876586, now seen corresponding path program 1 times [2021-10-08 18:21:49,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 18:21:49,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892089970] [2021-10-08 18:21:49,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 18:21:49,167 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 18:21:49,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 18:21:49,168 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 18:21:49,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-08 18:21:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 18:21:49,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-08 18:21:49,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 18:21:49,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 18:21:49,451 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-08 18:21:49,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 20 treesize of output 59 [2021-10-08 18:21:49,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:21:49,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 18:21:49,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:21:49,864 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 18:21:49,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892089970] [2021-10-08 18:21:49,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892089970] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-08 18:21:49,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 18:21:49,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2021-10-08 18:21:49,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915140066] [2021-10-08 18:21:49,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 18:21:49,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 18:21:49,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 18:21:49,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-08 18:21:49,870 INFO L87 Difference]: Start difference. First operand 179 states and 404 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2021-10-08 18:21:50,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 18:21:50,941 INFO L93 Difference]: Finished difference Result 357 states and 809 transitions. [2021-10-08 18:21:50,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-08 18:21:50,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 3 [2021-10-08 18:21:50,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 18:21:50,951 INFO L225 Difference]: With dead ends: 357 [2021-10-08 18:21:50,951 INFO L226 Difference]: Without dead ends: 357 [2021-10-08 18:21:50,952 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 379.5ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-08 18:21:50,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2021-10-08 18:21:50,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 182. [2021-10-08 18:21:50,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 115 states have (on average 3.5652173913043477) internal successors, (410), 181 states have internal predecessors, (410), 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) [2021-10-08 18:21:50,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 410 transitions. [2021-10-08 18:21:50,964 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 410 transitions. Word has length 3 [2021-10-08 18:21:50,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 18:21:50,966 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 410 transitions. [2021-10-08 18:21:50,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2021-10-08 18:21:50,970 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 410 transitions. [2021-10-08 18:21:50,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-08 18:21:50,970 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 18:21:50,971 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-08 18:21:50,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-08 18:21:51,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 18:21:51,183 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-08 18:21:51,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 18:21:51,184 INFO L82 PathProgramCache]: Analyzing trace with hash 842555102, now seen corresponding path program 1 times [2021-10-08 18:21:51,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 18:21:51,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1563378585] [2021-10-08 18:21:51,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 18:21:51,186 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 18:21:51,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 18:21:51,187 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 18:21:51,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-08 18:21:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 18:21:51,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-08 18:21:51,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 18:21:51,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:21:51,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 18:21:51,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2021-10-08 18:21:51,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:21:51,725 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 18:21:51,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1563378585] [2021-10-08 18:21:51,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1563378585] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-08 18:21:51,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 18:21:51,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2021-10-08 18:21:51,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428510063] [2021-10-08 18:21:51,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 18:21:51,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 18:21:51,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 18:21:51,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-08 18:21:51,728 INFO L87 Difference]: Start difference. First operand 182 states and 410 transitions. Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2021-10-08 18:21:53,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 18:21:53,052 INFO L93 Difference]: Finished difference Result 471 states and 1061 transitions. [2021-10-08 18:21:53,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 18:21:53,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 5 [2021-10-08 18:21:53,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 18:21:53,058 INFO L225 Difference]: With dead ends: 471 [2021-10-08 18:21:53,059 INFO L226 Difference]: Without dead ends: 471 [2021-10-08 18:21:53,059 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 438.6ms TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-10-08 18:21:53,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2021-10-08 18:21:53,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 212. [2021-10-08 18:21:53,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 145 states have (on average 3.7448275862068967) internal successors, (543), 211 states have internal predecessors, (543), 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) [2021-10-08 18:21:53,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 543 transitions. [2021-10-08 18:21:53,071 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 543 transitions. Word has length 5 [2021-10-08 18:21:53,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 18:21:53,072 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 543 transitions. [2021-10-08 18:21:53,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2021-10-08 18:21:53,072 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 543 transitions. [2021-10-08 18:21:53,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-08 18:21:53,073 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 18:21:53,073 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-08 18:21:53,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-08 18:21:53,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 18:21:53,286 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-08 18:21:53,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 18:21:53,287 INFO L82 PathProgramCache]: Analyzing trace with hash 842555103, now seen corresponding path program 1 times [2021-10-08 18:21:53,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 18:21:53,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1846727742] [2021-10-08 18:21:53,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 18:21:53,288 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 18:21:53,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 18:21:53,290 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 18:21:53,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-08 18:21:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 18:21:53,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 18:21:53,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 18:21:53,505 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-08 18:21:53,505 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 5 case distinctions, treesize of input 21 treesize of output 59 [2021-10-08 18:21:53,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 18:21:53,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 18:21:53,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 18:21:53,952 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 18:21:53,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1846727742] [2021-10-08 18:21:53,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1846727742] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 18:21:53,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 18:21:53,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-08 18:21:53,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689745667] [2021-10-08 18:21:53,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 18:21:53,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 18:21:53,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 18:21:53,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-08 18:21:53,954 INFO L87 Difference]: Start difference. First operand 212 states and 543 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-10-08 18:21:54,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 18:21:54,367 INFO L93 Difference]: Finished difference Result 134 states and 320 transitions. [2021-10-08 18:21:54,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 18:21:54,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2021-10-08 18:21:54,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 18:21:54,378 INFO L225 Difference]: With dead ends: 134 [2021-10-08 18:21:54,378 INFO L226 Difference]: Without dead ends: 134 [2021-10-08 18:21:54,378 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 18:21:54,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-08 18:21:54,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-10-08 18:21:54,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 97 states have (on average 3.2989690721649483) internal successors, (320), 133 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 18:21:54,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 320 transitions. [2021-10-08 18:21:54,385 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 320 transitions. Word has length 5 [2021-10-08 18:21:54,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 18:21:54,385 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 320 transitions. [2021-10-08 18:21:54,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-10-08 18:21:54,385 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 320 transitions. [2021-10-08 18:21:54,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-08 18:21:54,386 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 18:21:54,386 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-08 18:21:54,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-08 18:21:54,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 18:21:54,601 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-08 18:21:54,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 18:21:54,602 INFO L82 PathProgramCache]: Analyzing trace with hash 842555199, now seen corresponding path program 1 times [2021-10-08 18:21:54,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 18:21:54,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053262111] [2021-10-08 18:21:54,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 18:21:54,603 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 18:21:54,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 18:21:54,604 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 18:21:54,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-08 18:21:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 18:21:54,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 18:21:54,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 18:21:54,848 INFO L354 Elim1Store]: treesize reduction 155, result has 19.7 percent of original size [2021-10-08 18:21:54,849 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 4 case distinctions, treesize of input 45 treesize of output 69 [2021-10-08 18:21:54,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 94 [2021-10-08 18:21:55,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 18:21:55,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 18:21:55,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 18:21:55,457 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 18:21:55,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053262111] [2021-10-08 18:21:55,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2053262111] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 18:21:55,457 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 18:21:55,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-08 18:21:55,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143880578] [2021-10-08 18:21:55,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 18:21:55,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 18:21:55,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 18:21:55,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 18:21:55,459 INFO L87 Difference]: Start difference. First operand 134 states and 320 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-10-08 18:21:55,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 18:21:55,772 INFO L93 Difference]: Finished difference Result 121 states and 293 transitions. [2021-10-08 18:21:55,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 18:21:55,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 5 [2021-10-08 18:21:55,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 18:21:55,774 INFO L225 Difference]: With dead ends: 121 [2021-10-08 18:21:55,774 INFO L226 Difference]: Without dead ends: 121 [2021-10-08 18:21:55,774 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 18:21:55,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-10-08 18:21:55,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2021-10-08 18:21:55,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 94 states have (on average 3.117021276595745) internal successors, (293), 120 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 18:21:55,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 293 transitions. [2021-10-08 18:21:55,780 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 293 transitions. Word has length 5 [2021-10-08 18:21:55,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 18:21:55,780 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 293 transitions. [2021-10-08 18:21:55,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-10-08 18:21:55,780 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 293 transitions. [2021-10-08 18:21:55,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-08 18:21:55,781 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 18:21:55,781 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-08 18:21:55,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-08 18:21:55,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 18:21:55,982 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-08 18:21:55,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 18:21:55,983 INFO L82 PathProgramCache]: Analyzing trace with hash 842555201, now seen corresponding path program 1 times [2021-10-08 18:21:55,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 18:21:55,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822734149] [2021-10-08 18:21:55,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 18:21:55,984 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 18:21:55,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 18:21:55,986 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 18:21:55,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-08 18:21:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 18:21:56,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-08 18:21:56,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 18:21:56,240 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-08 18:21:56,240 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 5 case distinctions, treesize of input 21 treesize of output 59 [2021-10-08 18:21:56,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 18:21:56,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 18:21:56,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 18:21:56,700 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 18:21:56,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822734149] [2021-10-08 18:21:56,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [822734149] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 18:21:56,701 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 18:21:56,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-08 18:21:56,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499655674] [2021-10-08 18:21:56,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 18:21:56,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 18:21:56,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 18:21:56,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 18:21:56,702 INFO L87 Difference]: Start difference. First operand 121 states and 293 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-10-08 18:21:57,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 18:21:57,152 INFO L93 Difference]: Finished difference Result 108 states and 266 transitions. [2021-10-08 18:21:57,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 18:21:57,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-10-08 18:21:57,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 18:21:57,155 INFO L225 Difference]: With dead ends: 108 [2021-10-08 18:21:57,155 INFO L226 Difference]: Without dead ends: 108 [2021-10-08 18:21:57,155 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 18:21:57,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-10-08 18:21:57,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2021-10-08 18:21:57,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 91 states have (on average 2.923076923076923) internal successors, (266), 107 states have internal predecessors, (266), 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) [2021-10-08 18:21:57,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 266 transitions. [2021-10-08 18:21:57,161 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 266 transitions. Word has length 5 [2021-10-08 18:21:57,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 18:21:57,161 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 266 transitions. [2021-10-08 18:21:57,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-10-08 18:21:57,161 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 266 transitions. [2021-10-08 18:21:57,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-08 18:21:57,162 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 18:21:57,162 INFO L512 BasicCegarLoop]: trace histogram [4, 1, 1] [2021-10-08 18:21:57,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-08 18:21:57,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 18:21:57,374 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-08 18:21:57,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 18:21:57,375 INFO L82 PathProgramCache]: Analyzing trace with hash 349524820, now seen corresponding path program 2 times [2021-10-08 18:21:57,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 18:21:57,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199876451] [2021-10-08 18:21:57,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 18:21:57,377 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 18:21:57,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 18:21:57,378 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 18:21:57,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-08 18:21:57,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 18:21:57,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 18:21:57,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-08 18:21:57,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 18:21:57,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 18:21:57,653 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-08 18:21:57,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 20 treesize of output 59 [2021-10-08 18:21:57,887 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:21:57,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 18:21:58,744 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:21:58,745 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 18:21:58,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [199876451] [2021-10-08 18:21:58,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [199876451] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-08 18:21:58,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 18:21:58,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-10-08 18:21:58,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450687220] [2021-10-08 18:21:58,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-08 18:21:58,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 18:21:58,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-08 18:21:58,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-08 18:21:58,746 INFO L87 Difference]: Start difference. First operand 108 states and 266 transitions. Second operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2021-10-08 18:22:05,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 18:22:05,475 INFO L93 Difference]: Finished difference Result 922 states and 2318 transitions. [2021-10-08 18:22:05,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-08 18:22:05,477 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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 6 [2021-10-08 18:22:05,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 18:22:05,485 INFO L225 Difference]: With dead ends: 922 [2021-10-08 18:22:05,485 INFO L226 Difference]: Without dead ends: 922 [2021-10-08 18:22:05,486 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2383.6ms TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2021-10-08 18:22:05,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2021-10-08 18:22:05,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 114. [2021-10-08 18:22:05,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 97 states have (on average 2.865979381443299) internal successors, (278), 113 states have internal predecessors, (278), 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) [2021-10-08 18:22:05,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 278 transitions. [2021-10-08 18:22:05,501 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 278 transitions. Word has length 6 [2021-10-08 18:22:05,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 18:22:05,502 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 278 transitions. [2021-10-08 18:22:05,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2021-10-08 18:22:05,502 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 278 transitions. [2021-10-08 18:22:05,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-08 18:22:05,502 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 18:22:05,503 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-08 18:22:05,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-08 18:22:05,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 18:22:05,715 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-08 18:22:05,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 18:22:05,716 INFO L82 PathProgramCache]: Analyzing trace with hash 349405156, now seen corresponding path program 1 times [2021-10-08 18:22:05,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 18:22:05,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565405356] [2021-10-08 18:22:05,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 18:22:05,717 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 18:22:05,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 18:22:05,731 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 18:22:05,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-08 18:22:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 18:22:05,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-08 18:22:05,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 18:22:05,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 18:22:06,018 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-08 18:22:06,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 20 treesize of output 59 [2021-10-08 18:22:06,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:22:06,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 18:22:07,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:22:07,328 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 18:22:07,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1565405356] [2021-10-08 18:22:07,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1565405356] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-08 18:22:07,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 18:22:07,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2021-10-08 18:22:07,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777803242] [2021-10-08 18:22:07,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-08 18:22:07,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 18:22:07,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-08 18:22:07,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-08 18:22:07,331 INFO L87 Difference]: Start difference. First operand 114 states and 278 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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) [2021-10-08 18:22:13,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 18:22:13,948 INFO L93 Difference]: Finished difference Result 284 states and 656 transitions. [2021-10-08 18:22:13,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-08 18:22:13,949 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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 6 [2021-10-08 18:22:13,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 18:22:13,956 INFO L225 Difference]: With dead ends: 284 [2021-10-08 18:22:13,956 INFO L226 Difference]: Without dead ends: 284 [2021-10-08 18:22:13,957 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 3027.6ms TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-10-08 18:22:13,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-10-08 18:22:13,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 135. [2021-10-08 18:22:13,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 118 states have (on average 3.016949152542373) internal successors, (356), 134 states have internal predecessors, (356), 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) [2021-10-08 18:22:13,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 356 transitions. [2021-10-08 18:22:13,964 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 356 transitions. Word has length 6 [2021-10-08 18:22:13,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 18:22:13,964 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 356 transitions. [2021-10-08 18:22:13,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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) [2021-10-08 18:22:13,965 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 356 transitions. [2021-10-08 18:22:13,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-08 18:22:13,965 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 18:22:13,965 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-08 18:22:13,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-08 18:22:14,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 18:22:14,172 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-08 18:22:14,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 18:22:14,172 INFO L82 PathProgramCache]: Analyzing trace with hash -2053251242, now seen corresponding path program 1 times [2021-10-08 18:22:14,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 18:22:14,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530641237] [2021-10-08 18:22:14,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 18:22:14,174 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 18:22:14,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 18:22:14,175 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 18:22:14,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-08 18:22:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 18:22:14,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-08 18:22:14,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 18:22:14,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:22:14,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 18:22:14,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2021-10-08 18:22:14,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:22:14,926 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 18:22:14,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1530641237] [2021-10-08 18:22:14,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1530641237] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-08 18:22:14,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 18:22:14,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2021-10-08 18:22:14,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601515739] [2021-10-08 18:22:14,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 18:22:14,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 18:22:14,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 18:22:14,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-08 18:22:14,928 INFO L87 Difference]: Start difference. First operand 135 states and 356 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-10-08 18:22:15,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 18:22:15,886 INFO L93 Difference]: Finished difference Result 162 states and 515 transitions. [2021-10-08 18:22:15,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-08 18:22:15,887 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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 7 [2021-10-08 18:22:15,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 18:22:15,888 INFO L225 Difference]: With dead ends: 162 [2021-10-08 18:22:15,888 INFO L226 Difference]: Without dead ends: 162 [2021-10-08 18:22:15,889 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 540.0ms TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-10-08 18:22:15,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-10-08 18:22:15,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 151. [2021-10-08 18:22:15,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 134 states have (on average 3.537313432835821) internal successors, (474), 150 states have internal predecessors, (474), 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) [2021-10-08 18:22:15,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 474 transitions. [2021-10-08 18:22:15,897 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 474 transitions. Word has length 7 [2021-10-08 18:22:15,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 18:22:15,897 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 474 transitions. [2021-10-08 18:22:15,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-10-08 18:22:15,897 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 474 transitions. [2021-10-08 18:22:15,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-08 18:22:15,898 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 18:22:15,898 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-08 18:22:15,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-08 18:22:16,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 18:22:16,111 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err11REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-08 18:22:16,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 18:22:16,111 INFO L82 PathProgramCache]: Analyzing trace with hash -2053251094, now seen corresponding path program 1 times [2021-10-08 18:22:16,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 18:22:16,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [411347137] [2021-10-08 18:22:16,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 18:22:16,112 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 18:22:16,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 18:22:16,114 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 18:22:16,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-08 18:22:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 18:22:16,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 18:22:16,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 18:22:16,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 18:22:16,468 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-08 18:22:16,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 20 treesize of output 59 [2021-10-08 18:22:16,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:22:16,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 18:22:16,819 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-08 18:22:16,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 189 treesize of output 154 [2021-10-08 18:22:16,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 152 [2021-10-08 18:22:19,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:22:19,199 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 18:22:19,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [411347137] [2021-10-08 18:22:19,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [411347137] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-08 18:22:19,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 18:22:19,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2021-10-08 18:22:19,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833222298] [2021-10-08 18:22:19,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 18:22:19,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 18:22:19,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 18:22:19,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-08 18:22:19,201 INFO L87 Difference]: Start difference. First operand 151 states and 474 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-10-08 18:22:35,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 18:22:35,851 INFO L93 Difference]: Finished difference Result 174 states and 482 transitions. [2021-10-08 18:22:35,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-08 18:22:35,854 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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 7 [2021-10-08 18:22:35,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 18:22:35,855 INFO L225 Difference]: With dead ends: 174 [2021-10-08 18:22:35,856 INFO L226 Difference]: Without dead ends: 174 [2021-10-08 18:22:35,856 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2087.2ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-10-08 18:22:35,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-10-08 18:22:35,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 137. [2021-10-08 18:22:35,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 120 states have (on average 3.316666666666667) internal successors, (398), 136 states have internal predecessors, (398), 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) [2021-10-08 18:22:35,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 398 transitions. [2021-10-08 18:22:35,863 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 398 transitions. Word has length 7 [2021-10-08 18:22:35,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 18:22:35,863 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 398 transitions. [2021-10-08 18:22:35,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-10-08 18:22:35,863 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 398 transitions. [2021-10-08 18:22:35,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-08 18:22:35,864 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 18:22:35,864 INFO L512 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1] [2021-10-08 18:22:35,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-08 18:22:36,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 18:22:36,065 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-08 18:22:36,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 18:22:36,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1698022522, now seen corresponding path program 2 times [2021-10-08 18:22:36,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 18:22:36,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059079115] [2021-10-08 18:22:36,066 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 18:22:36,066 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 18:22:36,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 18:22:36,068 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 18:22:36,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-08 18:22:36,217 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-08 18:22:36,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 18:22:36,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-08 18:22:36,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 18:22:36,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 18:22:36,439 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-08 18:22:36,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 20 treesize of output 59 [2021-10-08 18:22:37,028 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:22:37,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 18:22:39,395 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:22:39,396 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 18:22:39,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059079115] [2021-10-08 18:22:39,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059079115] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-08 18:22:39,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 18:22:39,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-10-08 18:22:39,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612274523] [2021-10-08 18:22:39,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-08 18:22:39,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 18:22:39,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-08 18:22:39,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-10-08 18:22:39,398 INFO L87 Difference]: Start difference. First operand 137 states and 398 transitions. Second operand has 16 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 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) [2021-10-08 18:23:15,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 18:23:15,704 INFO L93 Difference]: Finished difference Result 429 states and 1101 transitions. [2021-10-08 18:23:15,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-08 18:23:15,707 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 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 9 [2021-10-08 18:23:15,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 18:23:15,710 INFO L225 Difference]: With dead ends: 429 [2021-10-08 18:23:15,711 INFO L226 Difference]: Without dead ends: 429 [2021-10-08 18:23:15,711 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 27096.7ms TimeCoverageRelationStatistics Valid=257, Invalid=613, Unknown=0, NotChecked=0, Total=870 [2021-10-08 18:23:15,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-10-08 18:23:15,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 162. [2021-10-08 18:23:15,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 145 states have (on average 3.4689655172413794) internal successors, (503), 161 states have internal predecessors, (503), 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) [2021-10-08 18:23:15,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 503 transitions. [2021-10-08 18:23:15,721 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 503 transitions. Word has length 9 [2021-10-08 18:23:15,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 18:23:15,722 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 503 transitions. [2021-10-08 18:23:15,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 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) [2021-10-08 18:23:15,722 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 503 transitions. [2021-10-08 18:23:15,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-08 18:23:15,723 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 18:23:15,723 INFO L512 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2021-10-08 18:23:15,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-08 18:23:15,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 18:23:15,936 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err11REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-08 18:23:15,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 18:23:15,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1099181588, now seen corresponding path program 2 times [2021-10-08 18:23:15,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 18:23:15,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2101485849] [2021-10-08 18:23:15,939 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 18:23:15,939 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 18:23:15,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 18:23:15,940 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 18:23:15,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-08 18:23:16,077 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 18:23:16,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 18:23:16,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-08 18:23:16,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 18:23:16,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 18:23:16,415 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-08 18:23:16,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 20 treesize of output 59 [2021-10-08 18:23:16,864 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-08 18:23:16,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 18:23:16,961 INFO L354 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2021-10-08 18:23:16,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 189 treesize of output 154 [2021-10-08 18:23:16,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 152 [2021-10-08 18:23:20,368 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-08 18:23:20,368 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 18:23:20,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2101485849] [2021-10-08 18:23:20,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2101485849] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 18:23:20,369 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 18:23:20,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4 [2021-10-08 18:23:20,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582545648] [2021-10-08 18:23:20,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 18:23:20,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 18:23:20,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 18:23:20,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-08 18:23:20,371 INFO L87 Difference]: Start difference. First operand 162 states and 503 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-10-08 18:23:29,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 18:23:29,543 INFO L93 Difference]: Finished difference Result 104 states and 258 transitions. [2021-10-08 18:23:29,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 18:23:29,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 10 [2021-10-08 18:23:29,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 18:23:29,546 INFO L225 Difference]: With dead ends: 104 [2021-10-08 18:23:29,546 INFO L226 Difference]: Without dead ends: 104 [2021-10-08 18:23:29,546 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1019.5ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-08 18:23:29,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-10-08 18:23:29,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 51. [2021-10-08 18:23:29,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 48 states have (on average 2.4375) internal successors, (117), 50 states have internal predecessors, (117), 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) [2021-10-08 18:23:29,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 117 transitions. [2021-10-08 18:23:29,549 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 117 transitions. Word has length 10 [2021-10-08 18:23:29,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 18:23:29,550 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 117 transitions. [2021-10-08 18:23:29,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-10-08 18:23:29,550 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 117 transitions. [2021-10-08 18:23:29,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-08 18:23:29,551 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 18:23:29,551 INFO L512 BasicCegarLoop]: trace histogram [10, 1, 1] [2021-10-08 18:23:29,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-08 18:23:29,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 18:23:29,763 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-08 18:23:29,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 18:23:29,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1060961388, now seen corresponding path program 3 times [2021-10-08 18:23:29,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 18:23:29,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649740368] [2021-10-08 18:23:29,764 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 18:23:29,765 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 18:23:29,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 18:23:29,766 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 18:23:29,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-08 18:23:30,029 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-10-08 18:23:30,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 18:23:30,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-08 18:23:30,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 18:23:30,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-08 18:23:30,343 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-08 18:23:30,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 20 treesize of output 59 [2021-10-08 18:23:31,359 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:23:31,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 18:23:35,546 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 18:23:35,546 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 18:23:35,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649740368] [2021-10-08 18:23:35,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649740368] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-08 18:23:35,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-08 18:23:35,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2021-10-08 18:23:35,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257328624] [2021-10-08 18:23:35,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-08 18:23:35,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 18:23:35,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-08 18:23:35,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2021-10-08 18:23:35,548 INFO L87 Difference]: Start difference. First operand 51 states and 117 transitions. Second operand has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 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) [2021-10-08 18:24:05,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 18:24:05,453 INFO L93 Difference]: Finished difference Result 568 states and 1274 transitions. [2021-10-08 18:24:05,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-08 18:24:05,455 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 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 12 [2021-10-08 18:24:05,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 18:24:05,461 INFO L225 Difference]: With dead ends: 568 [2021-10-08 18:24:05,461 INFO L226 Difference]: Without dead ends: 568 [2021-10-08 18:24:05,462 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 23545.5ms TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2021-10-08 18:24:05,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2021-10-08 18:24:05,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 63. [2021-10-08 18:24:05,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 60 states have (on average 2.35) internal successors, (141), 62 states have internal predecessors, (141), 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) [2021-10-08 18:24:05,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 141 transitions. [2021-10-08 18:24:05,470 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 141 transitions. Word has length 12 [2021-10-08 18:24:05,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 18:24:05,470 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 141 transitions. [2021-10-08 18:24:05,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 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) [2021-10-08 18:24:05,470 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 141 transitions. [2021-10-08 18:24:05,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-08 18:24:05,471 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 18:24:05,471 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 18:24:05,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-10-08 18:24:05,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 18:24:05,685 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread2Err0REQUIRES_VIOLATION, thread2Err1REQUIRES_VIOLATION (and 42 more)] === [2021-10-08 18:24:05,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 18:24:05,685 INFO L82 PathProgramCache]: Analyzing trace with hash -137481434, now seen corresponding path program 1 times [2021-10-08 18:24:05,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 18:24:05,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577457923] [2021-10-08 18:24:05,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 18:24:05,687 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 18:24:05,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 18:24:05,688 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 18:24:05,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-08 18:24:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 18:24:05,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 18:24:05,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 18:24:06,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 18:24:06,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 18:24:07,579 INFO L354 Elim1Store]: treesize reduction 442, result has 10.0 percent of original size [2021-10-08 18:24:07,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 324 treesize of output 302 [2021-10-08 18:24:07,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 302 treesize of output 298 [2021-10-08 18:24:07,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 298 treesize of output 294 [2021-10-08 18:25:47,146 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 18:25:47,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577457923] [2021-10-08 18:25:47,147 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2021-10-08 18:25:47,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [214541129] [2021-10-08 18:25:47,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 18:25:47,148 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-08 18:25:47,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 [2021-10-08 18:25:47,150 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-08 18:25:47,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-10-08 18:25:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 18:25:47,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 18:25:47,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 18:25:47,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-08 18:25:47,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 18:25:48,821 INFO L354 Elim1Store]: treesize reduction 442, result has 10.0 percent of original size [2021-10-08 18:25:48,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 324 treesize of output 302 [2021-10-08 18:25:48,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 302 treesize of output 298 [2021-10-08 18:25:48,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 298 treesize of output 294 [2021-10-08 18:26:51,829 INFO L354 Elim1Store]: treesize reduction 1011, result has 12.5 percent of original size [2021-10-08 18:26:51,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 434 treesize of output 438 [2021-10-08 18:26:51,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 438 treesize of output 432 Received shutdown request... [2021-10-08 18:34:38,023 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-08 18:34:38,033 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-08 18:34:38,033 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (20)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-08 18:34:38,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-08 18:34:38,036 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-08 18:34:38,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2021-10-08 18:34:38,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,20 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2021-10-08 18:34:38,431 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. [2021-10-08 18:34:38,433 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0REQUIRES_VIOLATION [2021-10-08 18:34:38,433 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1REQUIRES_VIOLATION [2021-10-08 18:34:38,433 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0REQUIRES_VIOLATION [2021-10-08 18:34:38,433 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1REQUIRES_VIOLATION [2021-10-08 18:34:38,433 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2REQUIRES_VIOLATION [2021-10-08 18:34:38,433 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3REQUIRES_VIOLATION [2021-10-08 18:34:38,433 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4REQUIRES_VIOLATION [2021-10-08 18:34:38,434 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5REQUIRES_VIOLATION [2021-10-08 18:34:38,434 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6REQUIRES_VIOLATION [2021-10-08 18:34:38,434 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7REQUIRES_VIOLATION [2021-10-08 18:34:38,434 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8REQUIRES_VIOLATION [2021-10-08 18:34:38,434 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9REQUIRES_VIOLATION [2021-10-08 18:34:38,434 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10REQUIRES_VIOLATION [2021-10-08 18:34:38,434 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err11REQUIRES_VIOLATION [2021-10-08 18:34:38,434 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err12REQUIRES_VIOLATION [2021-10-08 18:34:38,435 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err13REQUIRES_VIOLATION [2021-10-08 18:34:38,435 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-08 18:34:38,435 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-08 18:34:38,435 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-08 18:34:38,435 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-08 18:34:38,435 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-08 18:34:38,435 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-08 18:34:38,435 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-08 18:34:38,436 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-08 18:34:38,436 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-08 18:34:38,436 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-08 18:34:38,436 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK [2021-10-08 18:34:38,436 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-08 18:34:38,437 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-08 18:34:38,437 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0REQUIRES_VIOLATION [2021-10-08 18:34:38,437 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1REQUIRES_VIOLATION [2021-10-08 18:34:38,438 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0REQUIRES_VIOLATION [2021-10-08 18:34:38,438 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1REQUIRES_VIOLATION [2021-10-08 18:34:38,438 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2REQUIRES_VIOLATION [2021-10-08 18:34:38,438 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3REQUIRES_VIOLATION [2021-10-08 18:34:38,438 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4REQUIRES_VIOLATION [2021-10-08 18:34:38,438 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5REQUIRES_VIOLATION [2021-10-08 18:34:38,438 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6REQUIRES_VIOLATION [2021-10-08 18:34:38,439 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7REQUIRES_VIOLATION [2021-10-08 18:34:38,439 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8REQUIRES_VIOLATION [2021-10-08 18:34:38,439 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9REQUIRES_VIOLATION [2021-10-08 18:34:38,439 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10REQUIRES_VIOLATION [2021-10-08 18:34:38,439 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err11REQUIRES_VIOLATION [2021-10-08 18:34:38,439 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err12REQUIRES_VIOLATION [2021-10-08 18:34:38,440 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err13REQUIRES_VIOLATION [2021-10-08 18:34:38,450 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-08 18:34:38,451 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-08 18:34:38,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 06:34:38 BasicIcfg [2021-10-08 18:34:38,453 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-08 18:34:38,454 INFO L168 Benchmark]: Toolchain (without parser) took 844520.86 ms. Allocated memory was 169.9 MB in the beginning and 221.2 MB in the end (delta: 51.4 MB). Free memory was 143.9 MB in the beginning and 125.7 MB in the end (delta: 18.2 MB). Peak memory consumption was 142.5 MB. Max. memory is 8.0 GB. [2021-10-08 18:34:38,454 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 169.9 MB. Free memory is still 142.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-08 18:34:38,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 443.43 ms. Allocated memory is still 169.9 MB. Free memory was 143.4 MB in the beginning and 129.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-08 18:34:38,455 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.01 ms. Allocated memory is still 169.9 MB. Free memory was 129.2 MB in the beginning and 127.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-08 18:34:38,455 INFO L168 Benchmark]: Boogie Preprocessor took 40.95 ms. Allocated memory is still 169.9 MB. Free memory was 127.1 MB in the beginning and 125.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-08 18:34:38,456 INFO L168 Benchmark]: RCFGBuilder took 2266.18 ms. Allocated memory is still 169.9 MB. Free memory was 125.6 MB in the beginning and 73.7 MB in the end (delta: 52.0 MB). Peak memory consumption was 52.4 MB. Max. memory is 8.0 GB. [2021-10-08 18:34:38,456 INFO L168 Benchmark]: TraceAbstraction took 841682.60 ms. Allocated memory was 169.9 MB in the beginning and 221.2 MB in the end (delta: 51.4 MB). Free memory was 73.2 MB in the beginning and 125.7 MB in the end (delta: -52.5 MB). Peak memory consumption was 72.2 MB. Max. memory is 8.0 GB. [2021-10-08 18:34:38,458 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 169.9 MB. Free memory is still 142.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 443.43 ms. Allocated memory is still 169.9 MB. Free memory was 143.4 MB in the beginning and 129.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 69.01 ms. Allocated memory is still 169.9 MB. Free memory was 129.2 MB in the beginning and 127.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 40.95 ms. Allocated memory is still 169.9 MB. Free memory was 127.1 MB in the beginning and 125.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2266.18 ms. Allocated memory is still 169.9 MB. Free memory was 125.6 MB in the beginning and 73.7 MB in the end (delta: 52.0 MB). Peak memory consumption was 52.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 841682.60 ms. Allocated memory was 169.9 MB in the beginning and 221.2 MB in the end (delta: 51.4 MB). Free memory was 73.2 MB in the beginning and 125.7 MB in the end (delta: -52.5 MB). Peak memory consumption was 72.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 61631.1ms, 170 PlacesBefore, 49 PlacesAfterwards, 179 TransitionsBefore, 45 TransitionsAfterwards, 2440 CoEnabledTransitionPairs, 8 FixpointIterations, 85 TrivialSequentialCompositions, 88 ConcurrentSequentialCompositions, 16 TrivialYvCompositions, 11 ConcurrentYvCompositions, 13 ChoiceCompositions, 213 TotalNumberOfCompositions, 3053 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3035, positive: 3019, positive conditional: 0, positive unconditional: 3019, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1381, positive: 1378, positive conditional: 0, positive unconditional: 1378, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1381, positive: 1378, positive conditional: 0, positive unconditional: 1378, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 231, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 231, negative conditional: 0, negative unconditional: 231, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3035, positive: 1641, positive conditional: 0, positive unconditional: 1641, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 1381, unknown conditional: 0, unknown unconditional: 1381] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - 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 - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 77]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 77]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 121]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 121]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 106]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 106]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 14 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-7-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 228 locations, 46 error locations. Started 1 CEGAR loops. OverallTime: 841380.2ms, OverallIterations: 18, TraceHistogramMax: 10, EmptinessCheckTime: 17.6ms, AutomataDifference: 112325.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 61718.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 330 SDtfs, 3383 SDslu, 1267 SDs, 0 SdLazy, 2778 SolverSat, 142 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 57505.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 198 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 60806.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=346occurred in iteration=0, InterpolantAutomatonStates: 130, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 266.3ms AutomataMinimizationTime, 17 MinimizatonAttempts, 2267 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 147.9ms SsaConstructionTime, 702.7ms SatisfiabilityAnalysisTime, 28835.7ms InterpolantComputationTime, 92 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 150 ConstructedInterpolants, 37 QuantifiedInterpolants, 4434 SizeOfPredicates, 148 NumberOfNonLiveVariables, 1032 ConjunctsInSsa, 179 ConjunctsInUnsatCore, 34 InterpolantComputations, 18 PerfectInterpolantSequences, 30/194 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 could not prove your program: Timeout Completed graceful shutdown