/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/chl-node-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-07 15:33:54,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-07 15:33:54,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-07 15:33:54,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-07 15:33:54,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-07 15:33:54,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-07 15:33:54,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-07 15:33:54,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-07 15:33:54,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-07 15:33:54,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-07 15:33:54,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-07 15:33:54,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-07 15:33:54,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-07 15:33:54,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-07 15:33:54,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-07 15:33:54,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-07 15:33:54,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-07 15:33:54,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-07 15:33:54,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-07 15:33:54,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-07 15:33:54,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-07 15:33:54,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-07 15:33:54,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-07 15:33:54,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-07 15:33:54,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-07 15:33:54,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-07 15:33:54,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-07 15:33:54,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-07 15:33:54,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-07 15:33:54,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-07 15:33:54,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-07 15:33:54,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-07 15:33:54,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-07 15:33:54,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-07 15:33:54,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-07 15:33:54,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-07 15:33:54,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-07 15:33:54,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-07 15:33:54,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-07 15:33:54,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-07 15:33:54,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-07 15:33:54,334 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-07 15:33:54,363 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-07 15:33:54,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-07 15:33:54,364 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-07 15:33:54,364 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-07 15:33:54,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-07 15:33:54,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-07 15:33:54,366 INFO L138 SettingsManager]: * Use SBE=true [2021-10-07 15:33:54,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-07 15:33:54,367 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-07 15:33:54,367 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-07 15:33:54,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-07 15:33:54,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-07 15:33:54,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-07 15:33:54,368 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-07 15:33:54,368 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-07 15:33:54,369 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-07 15:33:54,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-07 15:33:54,369 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-07 15:33:54,369 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-07 15:33:54,370 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-07 15:33:54,370 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-07 15:33:54,370 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-07 15:33:54,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-07 15:33:54,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-07 15:33:54,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-07 15:33:54,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:33:54,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-07 15:33:54,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-07 15:33:54,375 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-07 15:33:54,376 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-07 15:33:54,376 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-07 15:33:54,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-07 15:33:54,376 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-07 15:33:54,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-07 15:33:54,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-07 15:33:54,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-07 15:33:54,873 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-07 15:33:54,874 INFO L275 PluginConnector]: CDTParser initialized [2021-10-07 15:33:54,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2021-10-07 15:33:54,962 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0539cccc4/f05f0807b48746b786e71e7324b5dd80/FLAG5c4d9d87b [2021-10-07 15:33:55,606 INFO L306 CDTParser]: Found 1 translation units. [2021-10-07 15:33:55,607 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2021-10-07 15:33:55,619 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0539cccc4/f05f0807b48746b786e71e7324b5dd80/FLAG5c4d9d87b [2021-10-07 15:33:55,967 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0539cccc4/f05f0807b48746b786e71e7324b5dd80 [2021-10-07 15:33:55,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-07 15:33:55,983 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-07 15:33:55,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-07 15:33:55,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-07 15:33:55,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-07 15:33:55,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:33:55" (1/1) ... [2021-10-07 15:33:55,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f241103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:33:55, skipping insertion in model container [2021-10-07 15:33:55,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:33:55" (1/1) ... [2021-10-07 15:33:56,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-07 15:33:56,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 15:33:56,317 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/chl-node-symm.wvr.c[3267,3280] [2021-10-07 15:33:56,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:33:56,371 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-07 15:33:56,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 15:33:56,409 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/chl-node-symm.wvr.c[3267,3280] [2021-10-07 15:33:56,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:33:56,427 INFO L203 MainTranslator]: Completed pre-run [2021-10-07 15:33:56,454 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/chl-node-symm.wvr.c[3267,3280] [2021-10-07 15:33:56,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:33:56,479 INFO L208 MainTranslator]: Completed translation [2021-10-07 15:33:56,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:33:56 WrapperNode [2021-10-07 15:33:56,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-07 15:33:56,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-07 15:33:56,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-07 15:33:56,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-07 15:33:56,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:33:56" (1/1) ... [2021-10-07 15:33:56,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:33:56" (1/1) ... [2021-10-07 15:33:56,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-07 15:33:56,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-07 15:33:56,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-07 15:33:56,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-07 15:33:56,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:33:56" (1/1) ... [2021-10-07 15:33:56,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:33:56" (1/1) ... [2021-10-07 15:33:56,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:33:56" (1/1) ... [2021-10-07 15:33:56,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:33:56" (1/1) ... [2021-10-07 15:33:56,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:33:56" (1/1) ... [2021-10-07 15:33:56,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:33:56" (1/1) ... [2021-10-07 15:33:56,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:33:56" (1/1) ... [2021-10-07 15:33:56,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-07 15:33:56,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-07 15:33:56,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-07 15:33:56,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-07 15:33:56,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:33:56" (1/1) ... [2021-10-07 15:33:56,607 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:33:56,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:33:56,656 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) [2021-10-07 15:33:56,673 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 [2021-10-07 15:33:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-07 15:33:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-07 15:33:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-07 15:33:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-07 15:33:56,733 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-07 15:33:56,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-07 15:33:56,733 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-07 15:33:56,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-07 15:33:56,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-07 15:33:56,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-07 15:33:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-07 15:33:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-07 15:33:56,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-07 15:33:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-07 15:33:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-07 15:33:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-07 15:33:56,736 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-07 15:34:02,246 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-07 15:34:02,247 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-10-07 15:34:02,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:34:02 BoogieIcfgContainer [2021-10-07 15:34:02,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-07 15:34:02,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-07 15:34:02,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-07 15:34:02,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-07 15:34:02,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:33:55" (1/3) ... [2021-10-07 15:34:02,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6f5fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:34:02, skipping insertion in model container [2021-10-07 15:34:02,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:33:56" (2/3) ... [2021-10-07 15:34:02,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6f5fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:34:02, skipping insertion in model container [2021-10-07 15:34:02,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:34:02" (3/3) ... [2021-10-07 15:34:02,259 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-node-symm.wvr.c [2021-10-07 15:34:02,269 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-07 15:34:02,269 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2021-10-07 15:34:02,270 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-07 15:34:02,341 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,341 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,342 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,342 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,343 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,343 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,343 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,343 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,344 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,344 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,344 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,344 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,345 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,345 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,345 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,345 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,346 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,346 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,346 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,347 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,347 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,348 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,348 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,348 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,349 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,349 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,349 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,350 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,350 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,350 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,351 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,351 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,351 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,351 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,351 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,352 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,352 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,352 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,352 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,352 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,353 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,353 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,353 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,353 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,353 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,354 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,354 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,354 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,354 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,354 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,355 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,355 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,355 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,355 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,355 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,355 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,356 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,356 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,356 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,356 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,356 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,357 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,357 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,357 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,357 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,357 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,358 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,358 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,358 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,358 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,358 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,359 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,359 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,359 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,359 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,359 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,360 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,360 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,360 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,360 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,361 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,361 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,361 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,361 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,362 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,362 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,363 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,363 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,363 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,363 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,363 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,364 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,364 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,364 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,364 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,364 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,365 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,366 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,366 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,366 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,367 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,367 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,367 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,368 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,368 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,368 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,368 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,369 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,369 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,369 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,370 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,370 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,370 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,370 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,370 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,371 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,371 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,371 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,371 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,372 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,372 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,372 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,372 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,373 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,373 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,373 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,373 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,374 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,374 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,374 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,374 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,375 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,375 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,375 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,375 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,375 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,376 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,376 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,376 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,376 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,376 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,377 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,377 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,377 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,377 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,377 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,378 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,378 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,378 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,378 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,378 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,378 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,379 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,379 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,379 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,379 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,379 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,380 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,380 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,380 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,380 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,380 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,380 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,381 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,381 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,381 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,381 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,381 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,382 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,382 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,382 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,382 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,382 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,383 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,383 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,383 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,383 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,383 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,383 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,384 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,384 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,384 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,384 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,385 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,385 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,386 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,386 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,386 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,386 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,386 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,387 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,387 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,387 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,387 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,388 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,388 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,388 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,388 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,392 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,392 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,392 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,393 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,393 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,393 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,393 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,393 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,393 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,394 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,394 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,394 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,396 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,397 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,397 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,397 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,397 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,397 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,399 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:34:02,403 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-07 15:34:02,453 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-07 15:34:02,460 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 [2021-10-07 15:34:02,461 INFO L340 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2021-10-07 15:34:02,481 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-07 15:34:02,493 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 258 places, 272 transitions, 560 flow [2021-10-07 15:34:02,496 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 258 places, 272 transitions, 560 flow [2021-10-07 15:34:02,498 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 258 places, 272 transitions, 560 flow [2021-10-07 15:34:02,640 INFO L129 PetriNetUnfolder]: 21/270 cut-off events. [2021-10-07 15:34:02,641 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-07 15:34:02,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 270 events. 21/270 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 295 event pairs, 0 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 206. Up to 2 conditions per place. [2021-10-07 15:34:02,654 INFO L116 LiptonReduction]: Number of co-enabled transitions 1140 [2021-10-07 15:34:38,854 INFO L131 LiptonReduction]: Checked pairs total: 1457 [2021-10-07 15:34:38,855 INFO L133 LiptonReduction]: Total number of compositions: 285 [2021-10-07 15:34:38,872 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 63 transitions, 142 flow [2021-10-07 15:34:38,926 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 915 states, 345 states have (on average 6.6173913043478265) internal successors, (2283), 914 states have internal predecessors, (2283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:34:38,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 915 states, 345 states have (on average 6.6173913043478265) internal successors, (2283), 914 states have internal predecessors, (2283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:34:38,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-07 15:34:38,936 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:34:38,936 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-07 15:34:38,937 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 64 more)] === [2021-10-07 15:34:38,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:34:38,943 INFO L82 PathProgramCache]: Analyzing trace with hash 38635, now seen corresponding path program 1 times [2021-10-07 15:34:38,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:34:38,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967994802] [2021-10-07 15:34:38,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:34:38,957 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:34:38,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:34:38,960 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) [2021-10-07 15:34:38,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-07 15:34:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:34:39,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-07 15:34:39,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:34:39,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 15:34:39,422 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-07 15:34:39,423 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 [2021-10-07 15:34:39,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:34:39,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:34:39,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:34:39,659 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:34:39,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967994802] [2021-10-07 15:34:39,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967994802] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:34:39,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:34:39,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:34:39,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063632330] [2021-10-07 15:34:39,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:34:39,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:34:39,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:34:39,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:34:39,693 INFO L87 Difference]: Start difference. First operand has 915 states, 345 states have (on average 6.6173913043478265) internal successors, (2283), 914 states have internal predecessors, (2283), 0 states have call successors, (0), 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) [2021-10-07 15:34:40,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:34:40,816 INFO L93 Difference]: Finished difference Result 506 states and 1206 transitions. [2021-10-07 15:34:40,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:34:40,818 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 [2021-10-07 15:34:40,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:34:40,841 INFO L225 Difference]: With dead ends: 506 [2021-10-07 15:34:40,841 INFO L226 Difference]: Without dead ends: 506 [2021-10-07 15:34:40,843 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 100.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:34:40,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2021-10-07 15:34:40,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 502. [2021-10-07 15:34:40,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 213 states have (on average 5.661971830985915) internal successors, (1206), 501 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:34:40,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 1206 transitions. [2021-10-07 15:34:40,967 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 1206 transitions. Word has length 2 [2021-10-07 15:34:40,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:34:40,967 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 1206 transitions. [2021-10-07 15:34:40,967 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) [2021-10-07 15:34:40,968 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 1206 transitions. [2021-10-07 15:34:40,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-07 15:34:40,968 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:34:40,968 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-07 15:34:40,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-07 15:34:41,182 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 [2021-10-07 15:34:41,183 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 64 more)] === [2021-10-07 15:34:41,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:34:41,185 INFO L82 PathProgramCache]: Analyzing trace with hash 38636, now seen corresponding path program 1 times [2021-10-07 15:34:41,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:34:41,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400448823] [2021-10-07 15:34:41,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:34:41,187 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:34:41,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:34:41,188 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) [2021-10-07 15:34:41,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-07 15:34:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:34:41,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-07 15:34:41,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:34:41,462 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-07 15:34:41,464 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 [2021-10-07 15:34:41,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:34:41,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:34:41,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:34:41,960 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:34:41,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400448823] [2021-10-07 15:34:41,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400448823] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:34:41,961 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:34:41,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-07 15:34:41,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312875715] [2021-10-07 15:34:41,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:34:41,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:34:41,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:34:41,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:34:41,963 INFO L87 Difference]: Start difference. First operand 502 states and 1206 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) [2021-10-07 15:34:42,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:34:42,676 INFO L93 Difference]: Finished difference Result 500 states and 1200 transitions. [2021-10-07 15:34:42,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:34:42,677 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 [2021-10-07 15:34:42,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:34:42,683 INFO L225 Difference]: With dead ends: 500 [2021-10-07 15:34:42,683 INFO L226 Difference]: Without dead ends: 500 [2021-10-07 15:34:42,684 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:34:42,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2021-10-07 15:34:42,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2021-10-07 15:34:42,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 213 states have (on average 5.633802816901408) internal successors, (1200), 499 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:34:42,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 1200 transitions. [2021-10-07 15:34:42,746 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 1200 transitions. Word has length 2 [2021-10-07 15:34:42,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:34:42,746 INFO L470 AbstractCegarLoop]: Abstraction has 500 states and 1200 transitions. [2021-10-07 15:34:42,747 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) [2021-10-07 15:34:42,747 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 1200 transitions. [2021-10-07 15:34:42,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-07 15:34:42,747 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:34:42,747 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-07 15:34:42,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-07 15:34:42,948 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 [2021-10-07 15:34:42,949 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 64 more)] === [2021-10-07 15:34:42,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:34:42,951 INFO L82 PathProgramCache]: Analyzing trace with hash 37329899, now seen corresponding path program 1 times [2021-10-07 15:34:42,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:34:42,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577680630] [2021-10-07 15:34:42,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:34:42,952 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:34:42,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:34:42,954 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) [2021-10-07 15:34:42,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-07 15:34:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:34:43,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-07 15:34:43,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:34:43,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 15:34:43,224 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-07 15:34:43,227 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 [2021-10-07 15:34:43,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:34:43,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:34:43,855 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:34:43,855 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:34:43,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577680630] [2021-10-07 15:34:43,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577680630] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-07 15:34:43,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:34:43,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2021-10-07 15:34:43,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507687150] [2021-10-07 15:34:43,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 15:34:43,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:34:43,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 15:34:43,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-07 15:34:43,858 INFO L87 Difference]: Start difference. First operand 500 states and 1200 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:34:48,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:34:48,845 INFO L93 Difference]: Finished difference Result 511 states and 1220 transitions. [2021-10-07 15:34:48,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-07 15:34:48,847 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 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 4 [2021-10-07 15:34:48,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:34:48,852 INFO L225 Difference]: With dead ends: 511 [2021-10-07 15:34:48,852 INFO L226 Difference]: Without dead ends: 511 [2021-10-07 15:34:48,853 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 712.1ms TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-10-07 15:34:48,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2021-10-07 15:34:48,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 508. [2021-10-07 15:34:48,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 221 states have (on average 5.502262443438914) internal successors, (1216), 507 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:34:48,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 1216 transitions. [2021-10-07 15:34:48,874 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 1216 transitions. Word has length 4 [2021-10-07 15:34:48,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:34:48,874 INFO L470 AbstractCegarLoop]: Abstraction has 508 states and 1216 transitions. [2021-10-07 15:34:48,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:34:48,875 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 1216 transitions. [2021-10-07 15:34:48,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-07 15:34:48,875 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:34:48,875 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-07 15:34:48,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-07 15:34:49,089 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 [2021-10-07 15:34:49,090 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 64 more)] === [2021-10-07 15:34:49,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:34:49,091 INFO L82 PathProgramCache]: Analyzing trace with hash 37400263, now seen corresponding path program 1 times [2021-10-07 15:34:49,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:34:49,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244726224] [2021-10-07 15:34:49,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:34:49,093 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:34:49,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:34:49,094 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) [2021-10-07 15:34:49,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-07 15:34:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:34:49,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-07 15:34:49,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:34:49,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-07 15:34:49,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:34:49,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:34:49,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:34:49,395 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:34:49,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244726224] [2021-10-07 15:34:49,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [244726224] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:34:49,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:34:49,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4 [2021-10-07 15:34:49,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738637029] [2021-10-07 15:34:49,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:34:49,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:34:49,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:34:49,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:34:49,397 INFO L87 Difference]: Start difference. First operand 508 states and 1216 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:34:50,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:34:50,467 INFO L93 Difference]: Finished difference Result 514 states and 1227 transitions. [2021-10-07 15:34:50,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:34:50,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 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 4 [2021-10-07 15:34:50,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:34:50,474 INFO L225 Difference]: With dead ends: 514 [2021-10-07 15:34:50,474 INFO L226 Difference]: Without dead ends: 514 [2021-10-07 15:34:50,475 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 234.1ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-07 15:34:50,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2021-10-07 15:34:50,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 511. [2021-10-07 15:34:50,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 224 states have (on average 5.477678571428571) internal successors, (1227), 510 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:34:50,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 1227 transitions. [2021-10-07 15:34:50,492 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 1227 transitions. Word has length 4 [2021-10-07 15:34:50,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:34:50,492 INFO L470 AbstractCegarLoop]: Abstraction has 511 states and 1227 transitions. [2021-10-07 15:34:50,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:34:50,492 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 1227 transitions. [2021-10-07 15:34:50,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-07 15:34:50,493 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:34:50,493 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-07 15:34:50,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-07 15:34:50,704 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 [2021-10-07 15:34:50,705 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 64 more)] === [2021-10-07 15:34:50,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:34:50,706 INFO L82 PathProgramCache]: Analyzing trace with hash 37400264, now seen corresponding path program 1 times [2021-10-07 15:34:50,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:34:50,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474026201] [2021-10-07 15:34:50,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:34:50,708 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:34:50,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:34:50,709 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) [2021-10-07 15:34:50,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-07 15:34:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:34:50,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-07 15:34:50,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:34:50,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-07 15:34:50,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:34:50,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:34:50,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:34:50,812 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:34:50,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474026201] [2021-10-07 15:34:50,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474026201] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:34:50,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:34:50,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-07 15:34:50,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719208964] [2021-10-07 15:34:50,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:34:50,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:34:50,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:34:50,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:34:50,814 INFO L87 Difference]: Start difference. First operand 511 states and 1227 transitions. Second operand has 3 states, 2 states have (on average 2.0) 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) [2021-10-07 15:34:51,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:34:51,219 INFO L93 Difference]: Finished difference Result 509 states and 1222 transitions. [2021-10-07 15:34:51,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:34:51,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) 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 4 [2021-10-07 15:34:51,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:34:51,228 INFO L225 Difference]: With dead ends: 509 [2021-10-07 15:34:51,228 INFO L226 Difference]: Without dead ends: 509 [2021-10-07 15:34:51,230 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:34:51,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2021-10-07 15:34:51,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2021-10-07 15:34:51,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 224 states have (on average 5.455357142857143) internal successors, (1222), 508 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:34:51,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 1222 transitions. [2021-10-07 15:34:51,246 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 1222 transitions. Word has length 4 [2021-10-07 15:34:51,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:34:51,247 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 1222 transitions. [2021-10-07 15:34:51,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) 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) [2021-10-07 15:34:51,247 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 1222 transitions. [2021-10-07 15:34:51,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:34:51,248 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:34:51,248 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 15:34:51,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-07 15:34:51,464 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 [2021-10-07 15:34:51,464 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 64 more)] === [2021-10-07 15:34:51,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:34:51,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1159417954, now seen corresponding path program 1 times [2021-10-07 15:34:51,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:34:51,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618209147] [2021-10-07 15:34:51,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:34:51,466 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:34:51,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:34:51,468 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) [2021-10-07 15:34:51,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-07 15:34:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:34:51,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-07 15:34:51,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:34:51,798 INFO L354 Elim1Store]: treesize reduction 151, result has 21.8 percent of original size [2021-10-07 15:34:51,798 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 44 treesize of output 72 [2021-10-07 15:34:51,810 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 184 treesize of output 182 [2021-10-07 15:34:52,248 INFO L354 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size [2021-10-07 15:34:52,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 36 [2021-10-07 15:34:52,457 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-07 15:34:52,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 34 [2021-10-07 15:34:52,654 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-07 15:34:52,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 24 [2021-10-07 15:34:52,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:34:52,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:34:53,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:34:53,893 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:34:53,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618209147] [2021-10-07 15:34:53,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618209147] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:34:53,894 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:34:53,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 2] imperfect sequences [] total 5 [2021-10-07 15:34:53,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393275479] [2021-10-07 15:34:53,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-07 15:34:53,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:34:53,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-07 15:34:53,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-07 15:34:53,896 INFO L87 Difference]: Start difference. First operand 509 states and 1222 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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) [2021-10-07 15:35:10,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:35:10,698 INFO L93 Difference]: Finished difference Result 408 states and 940 transitions. [2021-10-07 15:35:10,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:35:10,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 [2021-10-07 15:35:10,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:35:10,704 INFO L225 Difference]: With dead ends: 408 [2021-10-07 15:35:10,704 INFO L226 Difference]: Without dead ends: 408 [2021-10-07 15:35:10,704 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 576.4ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-07 15:35:10,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2021-10-07 15:35:10,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 408. [2021-10-07 15:35:10,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 205 states have (on average 4.585365853658536) internal successors, (940), 407 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:35:10,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 940 transitions. [2021-10-07 15:35:10,718 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 940 transitions. Word has length 5 [2021-10-07 15:35:10,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:35:10,718 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 940 transitions. [2021-10-07 15:35:10,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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) [2021-10-07 15:35:10,718 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 940 transitions. [2021-10-07 15:35:10,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:35:10,719 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:35:10,719 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 15:35:10,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-07 15:35:10,931 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 [2021-10-07 15:35:10,932 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 64 more)] === [2021-10-07 15:35:10,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:35:10,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1159417956, now seen corresponding path program 1 times [2021-10-07 15:35:10,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:35:10,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673653209] [2021-10-07 15:35:10,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:35:10,934 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:35:10,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:35:10,936 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) [2021-10-07 15:35:10,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-07 15:35:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:35:11,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-07 15:35:11,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:35:11,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 15:35:11,283 INFO L354 Elim1Store]: treesize reduction 210, result has 19.5 percent of original size [2021-10-07 15:35:11,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 102 [2021-10-07 15:35:12,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 15:35:12,979 INFO L354 Elim1Store]: treesize reduction 130, result has 42.7 percent of original size [2021-10-07 15:35:12,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 90 treesize of output 173 [2021-10-07 15:35:23,019 INFO L354 Elim1Store]: treesize reduction 214, result has 24.4 percent of original size [2021-10-07 15:35:23,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 100 treesize of output 153 [2021-10-07 15:35:26,965 INFO L354 Elim1Store]: treesize reduction 186, result has 38.4 percent of original size [2021-10-07 15:35:26,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 153 treesize of output 253 [2021-10-07 15:35:45,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:35:45,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:35:45,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:35:45,163 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:35:45,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673653209] [2021-10-07 15:35:45,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673653209] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:35:45,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:35:45,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-10-07 15:35:45,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797000904] [2021-10-07 15:35:45,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 15:35:45,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:35:45,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 15:35:45,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=29, Unknown=2, NotChecked=0, Total=56 [2021-10-07 15:35:45,166 INFO L87 Difference]: Start difference. First operand 408 states and 940 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) [2021-10-07 15:35:56,857 WARN L207 SmtUtils]: Spent 8.51 s on a formula simplification. DAG size of input: 189 DAG size of output: 178 [2021-10-07 15:36:13,818 WARN L207 SmtUtils]: Spent 8.10 s on a formula simplification. DAG size of input: 174 DAG size of output: 172 [2021-10-07 15:36:15,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:36:15,868 INFO L93 Difference]: Finished difference Result 594 states and 1280 transitions. [2021-10-07 15:36:15,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-07 15:36:15,869 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 [2021-10-07 15:36:15,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:36:15,873 INFO L225 Difference]: With dead ends: 594 [2021-10-07 15:36:15,873 INFO L226 Difference]: Without dead ends: 594 [2021-10-07 15:36:15,873 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 25102.5ms TimeCoverageRelationStatistics Valid=41, Invalid=45, Unknown=4, NotChecked=0, Total=90 [2021-10-07 15:36:15,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2021-10-07 15:36:15,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 310. [2021-10-07 15:36:15,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 188 states have (on average 3.5372340425531914) internal successors, (665), 309 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:36:15,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 665 transitions. [2021-10-07 15:36:15,885 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 665 transitions. Word has length 5 [2021-10-07 15:36:15,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:36:15,886 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 665 transitions. [2021-10-07 15:36:15,886 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) [2021-10-07 15:36:15,886 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 665 transitions. [2021-10-07 15:36:15,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-07 15:36:15,887 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:36:15,887 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2021-10-07 15:36:15,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-07 15:36:16,098 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 [2021-10-07 15:36:16,099 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 64 more)] === [2021-10-07 15:36:16,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:36:16,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1582160487, now seen corresponding path program 1 times [2021-10-07 15:36:16,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:36:16,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896323638] [2021-10-07 15:36:16,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:36:16,101 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:36:16,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:36:16,103 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) [2021-10-07 15:36:16,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-07 15:36:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:36:16,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-07 15:36:16,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:36:16,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-07 15:36:16,373 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:36:16,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:36:16,930 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:36:16,931 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:36:16,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896323638] [2021-10-07 15:36:16,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896323638] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-07 15:36:16,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:36:16,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-10-07 15:36:16,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398256935] [2021-10-07 15:36:16,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-07 15:36:16,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:36:16,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-07 15:36:16,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-07 15:36:16,933 INFO L87 Difference]: Start difference. First operand 310 states and 665 transitions. Second operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 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) [2021-10-07 15:36:19,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:36:19,731 INFO L93 Difference]: Finished difference Result 907 states and 1952 transitions. [2021-10-07 15:36:19,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-07 15:36:19,733 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 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 [2021-10-07 15:36:19,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:36:19,739 INFO L225 Difference]: With dead ends: 907 [2021-10-07 15:36:19,739 INFO L226 Difference]: Without dead ends: 907 [2021-10-07 15:36:19,740 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 939.8ms TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-10-07 15:36:19,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2021-10-07 15:36:19,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 327. [2021-10-07 15:36:19,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 205 states have (on average 3.4146341463414633) internal successors, (700), 326 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:36:19,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 700 transitions. [2021-10-07 15:36:19,755 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 700 transitions. Word has length 6 [2021-10-07 15:36:19,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:36:19,755 INFO L470 AbstractCegarLoop]: Abstraction has 327 states and 700 transitions. [2021-10-07 15:36:19,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 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) [2021-10-07 15:36:19,756 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 700 transitions. [2021-10-07 15:36:19,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-07 15:36:19,756 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:36:19,756 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-07 15:36:19,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-07 15:36:19,968 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 [2021-10-07 15:36:19,969 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 64 more)] === [2021-10-07 15:36:19,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:36:19,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1582219027, now seen corresponding path program 1 times [2021-10-07 15:36:19,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:36:19,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187027625] [2021-10-07 15:36:19,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:36:19,971 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:36:19,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:36:19,973 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) [2021-10-07 15:36:19,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-07 15:36:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:36:20,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-07 15:36:20,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:36:20,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-07 15:36:20,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:36:20,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:36:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:36:20,558 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:36:20,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187027625] [2021-10-07 15:36:20,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187027625] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-07 15:36:20,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-07 15:36:20,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2021-10-07 15:36:20,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588785646] [2021-10-07 15:36:20,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:36:20,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:36:20,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:36:20,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:36:20,560 INFO L87 Difference]: Start difference. First operand 327 states and 700 transitions. Second operand has 5 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) [2021-10-07 15:36:21,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:36:21,667 INFO L93 Difference]: Finished difference Result 620 states and 1330 transitions. [2021-10-07 15:36:21,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:36:21,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 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 6 [2021-10-07 15:36:21,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:36:21,673 INFO L225 Difference]: With dead ends: 620 [2021-10-07 15:36:21,673 INFO L226 Difference]: Without dead ends: 620 [2021-10-07 15:36:21,674 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 404.5ms TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-10-07 15:36:21,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2021-10-07 15:36:21,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 335. [2021-10-07 15:36:21,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 213 states have (on average 3.356807511737089) internal successors, (715), 334 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:36:21,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 715 transitions. [2021-10-07 15:36:21,687 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 715 transitions. Word has length 6 [2021-10-07 15:36:21,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:36:21,687 INFO L470 AbstractCegarLoop]: Abstraction has 335 states and 715 transitions. [2021-10-07 15:36:21,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 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) [2021-10-07 15:36:21,687 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 715 transitions. [2021-10-07 15:36:21,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 15:36:21,688 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:36:21,688 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:36:21,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-07 15:36:21,900 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 [2021-10-07 15:36:21,901 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 64 more)] === [2021-10-07 15:36:21,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:36:21,902 INFO L82 PathProgramCache]: Analyzing trace with hash -227584305, now seen corresponding path program 1 times [2021-10-07 15:36:21,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:36:21,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1411272736] [2021-10-07 15:36:21,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:36:21,904 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:36:21,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:36:21,905 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) [2021-10-07 15:36:21,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-07 15:36:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:36:22,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-07 15:36:22,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:36:22,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 15:36:22,256 INFO L354 Elim1Store]: treesize reduction 210, result has 19.5 percent of original size [2021-10-07 15:36:22,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 87 treesize of output 119 [2021-10-07 15:36:24,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 15:36:24,505 INFO L354 Elim1Store]: treesize reduction 130, result has 42.7 percent of original size [2021-10-07 15:36:24,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 88 treesize of output 171 [2021-10-07 15:36:35,432 INFO L354 Elim1Store]: treesize reduction 138, result has 41.3 percent of original size [2021-10-07 15:36:35,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 92 treesize of output 175 [2021-10-07 15:36:42,292 INFO L354 Elim1Store]: treesize reduction 186, result has 38.4 percent of original size [2021-10-07 15:36:42,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 131 treesize of output 231 [2021-10-07 15:37:02,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-07 15:37:02,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:37:02,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-07 15:37:02,573 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:37:02,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1411272736] [2021-10-07 15:37:02,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1411272736] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:37:02,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:37:02,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 2] imperfect sequences [] total 5 [2021-10-07 15:37:02,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354371889] [2021-10-07 15:37:02,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-07 15:37:02,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:37:02,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-07 15:37:02,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=20, Unknown=4, NotChecked=0, Total=42 [2021-10-07 15:37:02,576 INFO L87 Difference]: Start difference. First operand 335 states and 715 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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) [2021-10-07 15:37:12,225 WARN L207 SmtUtils]: Spent 8.75 s on a formula simplification. DAG size of input: 159 DAG size of output: 148 [2021-10-07 15:37:19,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:37:19,103 INFO L93 Difference]: Finished difference Result 334 states and 712 transitions. [2021-10-07 15:37:19,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:37:19,105 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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 [2021-10-07 15:37:19,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:37:19,108 INFO L225 Difference]: With dead ends: 334 [2021-10-07 15:37:19,108 INFO L226 Difference]: Without dead ends: 334 [2021-10-07 15:37:19,108 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17067.9ms TimeCoverageRelationStatistics Valid=25, Invalid=27, Unknown=4, NotChecked=0, Total=56 [2021-10-07 15:37:19,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2021-10-07 15:37:19,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 329. [2021-10-07 15:37:19,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 208 states have (on average 3.375) internal successors, (702), 328 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:37:19,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 702 transitions. [2021-10-07 15:37:19,119 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 702 transitions. Word has length 7 [2021-10-07 15:37:19,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:37:19,119 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 702 transitions. [2021-10-07 15:37:19,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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) [2021-10-07 15:37:19,119 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 702 transitions. [2021-10-07 15:37:19,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 15:37:19,120 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:37:19,120 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:37:19,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-10-07 15:37:19,332 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 [2021-10-07 15:37:19,333 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 64 more)] === [2021-10-07 15:37:19,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:37:19,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1804153732, now seen corresponding path program 1 times [2021-10-07 15:37:19,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:37:19,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [854288204] [2021-10-07 15:37:19,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:37:19,335 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:37:19,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:37:19,337 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) [2021-10-07 15:37:19,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-07 15:37:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:37:19,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-07 15:37:19,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:37:19,642 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-07 15:37:19,643 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 [2021-10-07 15:37:19,951 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-10-07 15:37:19,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 31 [2021-10-07 15:37:20,011 INFO L354 Elim1Store]: treesize reduction 38, result has 39.7 percent of original size [2021-10-07 15:37:20,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 37 treesize of output 54 [2021-10-07 15:37:20,128 INFO L354 Elim1Store]: treesize reduction 57, result has 30.5 percent of original size [2021-10-07 15:37:20,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 74 [2021-10-07 15:37:20,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:37:20,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:37:28,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:37:28,527 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:37:28,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [854288204] [2021-10-07 15:37:28,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [854288204] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:37:28,528 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:37:28,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 7 [2021-10-07 15:37:28,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766855014] [2021-10-07 15:37:28,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-07 15:37:28,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:37:28,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-07 15:37:28,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=42, Unknown=4, NotChecked=0, Total=72 [2021-10-07 15:37:28,529 INFO L87 Difference]: Start difference. First operand 329 states and 702 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 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) [2021-10-07 15:37:29,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:37:29,226 INFO L93 Difference]: Finished difference Result 283 states and 595 transitions. [2021-10-07 15:37:29,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:37:29,228 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 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 [2021-10-07 15:37:29,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:37:29,230 INFO L225 Difference]: With dead ends: 283 [2021-10-07 15:37:29,230 INFO L226 Difference]: Without dead ends: 283 [2021-10-07 15:37:29,230 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 8241.1ms TimeCoverageRelationStatistics Valid=43, Invalid=63, Unknown=4, NotChecked=0, Total=110 [2021-10-07 15:37:29,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-10-07 15:37:29,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2021-10-07 15:37:29,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 183 states have (on average 3.251366120218579) internal successors, (595), 282 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:37:29,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 595 transitions. [2021-10-07 15:37:29,240 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 595 transitions. Word has length 7 [2021-10-07 15:37:29,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:37:29,241 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 595 transitions. [2021-10-07 15:37:29,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 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) [2021-10-07 15:37:29,242 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 595 transitions. [2021-10-07 15:37:29,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 15:37:29,242 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:37:29,242 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:37:29,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-07 15:37:29,455 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 [2021-10-07 15:37:29,455 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 64 more)] === [2021-10-07 15:37:29,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:37:29,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1804153733, now seen corresponding path program 1 times [2021-10-07 15:37:29,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:37:29,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519961792] [2021-10-07 15:37:29,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:37:29,457 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:37:29,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:37:29,458 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) [2021-10-07 15:37:29,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-07 15:37:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 15:37:29,660 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-07 15:37:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 15:37:29,786 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-07 15:37:29,786 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-07 15:37:29,787 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err1REQUIRES_VIOLATION [2021-10-07 15:37:29,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0REQUIRES_VIOLATION [2021-10-07 15:37:29,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1REQUIRES_VIOLATION [2021-10-07 15:37:29,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2REQUIRES_VIOLATION [2021-10-07 15:37:29,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3REQUIRES_VIOLATION [2021-10-07 15:37:29,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4REQUIRES_VIOLATION [2021-10-07 15:37:29,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5REQUIRES_VIOLATION [2021-10-07 15:37:29,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6REQUIRES_VIOLATION [2021-10-07 15:37:29,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7REQUIRES_VIOLATION [2021-10-07 15:37:29,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8REQUIRES_VIOLATION [2021-10-07 15:37:29,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9REQUIRES_VIOLATION [2021-10-07 15:37:29,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10REQUIRES_VIOLATION [2021-10-07 15:37:29,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11REQUIRES_VIOLATION [2021-10-07 15:37:29,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATION [2021-10-07 15:37:29,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATION [2021-10-07 15:37:29,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2REQUIRES_VIOLATION [2021-10-07 15:37:29,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3REQUIRES_VIOLATION [2021-10-07 15:37:29,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4REQUIRES_VIOLATION [2021-10-07 15:37:29,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5REQUIRES_VIOLATION [2021-10-07 15:37:29,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6REQUIRES_VIOLATION [2021-10-07 15:37:29,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7REQUIRES_VIOLATION [2021-10-07 15:37:29,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8REQUIRES_VIOLATION [2021-10-07 15:37:29,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9REQUIRES_VIOLATION [2021-10-07 15:37:29,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10REQUIRES_VIOLATION [2021-10-07 15:37:29,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11REQUIRES_VIOLATION [2021-10-07 15:37:29,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-07 15:37:29,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-07 15:37:29,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-07 15:37:29,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-07 15:37:29,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-07 15:37:29,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-07 15:37:29,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-07 15:37:29,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-07 15:37:29,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-07 15:37:29,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-07 15:37:29,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-07 15:37:29,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-07 15:37:29,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-10-07 15:37:29,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-10-07 15:37:29,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-10-07 15:37:29,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-10-07 15:37:29,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 15:37:29,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 15:37:29,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-07 15:37:29,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-07 15:37:29,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0REQUIRES_VIOLATION [2021-10-07 15:37:29,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2REQUIRES_VIOLATION [2021-10-07 15:37:29,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3REQUIRES_VIOLATION [2021-10-07 15:37:29,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4REQUIRES_VIOLATION [2021-10-07 15:37:29,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5REQUIRES_VIOLATION [2021-10-07 15:37:29,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6REQUIRES_VIOLATION [2021-10-07 15:37:29,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7REQUIRES_VIOLATION [2021-10-07 15:37:29,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8REQUIRES_VIOLATION [2021-10-07 15:37:29,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9REQUIRES_VIOLATION [2021-10-07 15:37:29,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10REQUIRES_VIOLATION [2021-10-07 15:37:29,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11REQUIRES_VIOLATION [2021-10-07 15:37:29,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATION [2021-10-07 15:37:29,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATION [2021-10-07 15:37:29,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2REQUIRES_VIOLATION [2021-10-07 15:37:29,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3REQUIRES_VIOLATION [2021-10-07 15:37:29,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4REQUIRES_VIOLATION [2021-10-07 15:37:29,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5REQUIRES_VIOLATION [2021-10-07 15:37:29,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6REQUIRES_VIOLATION [2021-10-07 15:37:29,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7REQUIRES_VIOLATION [2021-10-07 15:37:29,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8REQUIRES_VIOLATION [2021-10-07 15:37:29,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9REQUIRES_VIOLATION [2021-10-07 15:37:29,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10REQUIRES_VIOLATION [2021-10-07 15:37:29,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11REQUIRES_VIOLATION [2021-10-07 15:37:29,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-07 15:37:30,014 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 [2021-10-07 15:37:30,022 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-07 15:37:30,022 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-07 15:37:30,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 03:37:30 BasicIcfg [2021-10-07 15:37:30,062 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-07 15:37:30,063 INFO L168 Benchmark]: Toolchain (without parser) took 214089.65 ms. Allocated memory was 159.4 MB in the beginning and 230.7 MB in the end (delta: 71.3 MB). Free memory was 134.9 MB in the beginning and 114.7 MB in the end (delta: 20.2 MB). Peak memory consumption was 91.7 MB. Max. memory is 8.0 GB. [2021-10-07 15:37:30,063 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 159.4 MB. Free memory is still 136.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 15:37:30,064 INFO L168 Benchmark]: CACSL2BoogieTranslator took 493.40 ms. Allocated memory is still 159.4 MB. Free memory was 134.5 MB in the beginning and 120.3 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-10-07 15:37:30,064 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.93 ms. Allocated memory is still 159.4 MB. Free memory was 120.3 MB in the beginning and 118.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:37:30,064 INFO L168 Benchmark]: Boogie Preprocessor took 46.31 ms. Allocated memory is still 159.4 MB. Free memory was 118.2 MB in the beginning and 116.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:37:30,065 INFO L168 Benchmark]: RCFGBuilder took 5653.93 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 115.8 MB in the beginning and 160.0 MB in the end (delta: -44.2 MB). Peak memory consumption was 55.3 MB. Max. memory is 8.0 GB. [2021-10-07 15:37:30,065 INFO L168 Benchmark]: TraceAbstraction took 207810.02 ms. Allocated memory was 191.9 MB in the beginning and 230.7 MB in the end (delta: 38.8 MB). Free memory was 160.0 MB in the beginning and 114.7 MB in the end (delta: 45.3 MB). Peak memory consumption was 83.6 MB. Max. memory is 8.0 GB. [2021-10-07 15:37:30,067 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 159.4 MB. Free memory is still 136.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 493.40 ms. Allocated memory is still 159.4 MB. Free memory was 134.5 MB in the beginning and 120.3 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 66.93 ms. Allocated memory is still 159.4 MB. Free memory was 120.3 MB in the beginning and 118.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.31 ms. Allocated memory is still 159.4 MB. Free memory was 118.2 MB in the beginning and 116.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 5653.93 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 115.8 MB in the beginning and 160.0 MB in the end (delta: -44.2 MB). Peak memory consumption was 55.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 207810.02 ms. Allocated memory was 191.9 MB in the beginning and 230.7 MB in the end (delta: 38.8 MB). Free memory was 160.0 MB in the beginning and 114.7 MB in the end (delta: 45.3 MB). Peak memory consumption was 83.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36359.1ms, 258 PlacesBefore, 66 PlacesAfterwards, 272 TransitionsBefore, 63 TransitionsAfterwards, 1140 CoEnabledTransitionPairs, 8 FixpointIterations, 205 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 42 TrivialYvCompositions, 0 ConcurrentYvCompositions, 17 ChoiceCompositions, 285 TotalNumberOfCompositions, 1457 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1162, positive: 1138, positive conditional: 0, positive unconditional: 1138, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 330, positive: 325, positive conditional: 0, positive unconditional: 325, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 330, positive: 325, positive conditional: 0, positive unconditional: 325, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 901, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 901, negative conditional: 0, negative unconditional: 901, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1162, positive: 813, positive conditional: 0, positive unconditional: 813, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 330, unknown conditional: 0, unknown unconditional: 330] , Statistics on independence cache: Total cache size (in pairs): 90, Positive cache size: 88, Positive conditional cache size: 0, Positive unconditional cache size: 88, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 50]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L41] 0 int id_0, id_3, result_6, order1_7, order2_8, result_9, order1_10, order2_11; [L42] 0 int *get_2, *get_5; [L43] 0 _Bool *contains_key_1, *contains_key_4; [L70] 0 pthread_t t1, t2; [L73] 0 id_0 = __VERIFIER_nondet_int() [L74] 0 id_3 = __VERIFIER_nondet_int() [L75] 0 result_6 = __VERIFIER_nondet_int() [L76] 0 order1_7 = __VERIFIER_nondet_int() [L77] 0 order2_8 = __VERIFIER_nondet_int() [L78] 0 result_9 = __VERIFIER_nondet_int() [L79] 0 order1_10 = __VERIFIER_nondet_int() [L80] 0 order2_11 = __VERIFIER_nondet_int() [L38] COND FALSE 0 !(!cond) [L38] COND FALSE 0 !(!cond) [L102] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L103] 0 int i = 0; VAL [contains_key_1={0:0}, contains_key_4={0:0}, get_2={0:0}, get_5={0:0}, id_0=-1] [L103] COND FALSE 0 !(i < size) [L106] 0 return arr; [L81] 0 get_2 = create_fresh_int_array(id_0 + 1) [L38] COND FALSE 0 !(!cond) [L38] COND FALSE 0 !(!cond) [L102] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L103] 0 int i = 0; VAL [contains_key_1={0:0}, contains_key_4={0:0}, get_2={1073741825:0}, get_5={0:0}, id_0=-1, id_3=-1] [L103] COND FALSE 0 !(i < size) [L106] 0 return arr; [L82] 0 get_5 = create_fresh_int_array(id_3 + 1) [L38] COND FALSE 0 !(!cond) [L38] COND FALSE 0 !(!cond) [L113] 0 _Bool* arr = (_Bool*)malloc(sizeof(_Bool) * (size_t)size); [L114] 0 int i = 0; VAL [contains_key_1={0:0}, contains_key_4={0:0}, get_2={1073741825:0}, get_5={2:0}, id_0=-1, id_3=-1] [L114] COND FALSE 0 !(i < size) [L117] 0 return arr; [L83] 0 contains_key_1 = create_fresh_bool_array(id_0+1) [L38] COND FALSE 0 !(!cond) [L38] COND FALSE 0 !(!cond) [L113] 0 _Bool* arr = (_Bool*)malloc(sizeof(_Bool) * (size_t)size); [L114] 0 int i = 0; VAL [contains_key_1={1:0}, contains_key_4={0:0}, get_2={1073741825:0}, get_5={2:0}, id_0=-1, id_3=-1] [L114] COND FALSE 0 !(i < size) [L117] 0 return arr; [L84] 0 contains_key_4 = create_fresh_bool_array(id_3+1) [L87] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [contains_key_1={1:0}, contains_key_4={3:0}, get_2={1073741825:0}, get_5={2:0}, id_0=-1, id_3=-1] [L50] 1 get_2[id_0] - UnprovableResult [Line: 50]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 93]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 286 locations, 68 error locations. Started 1 CEGAR loops. OverallTime: 207567.4ms, OverallIterations: 12, TraceHistogramMax: 2, EmptinessCheckTime: 15.9ms, AutomataDifference: 77058.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 36464.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 225 SDtfs, 920 SDslu, 285 SDs, 0 SdLazy, 970 SolverSat, 144 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 45244.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 21 SyntacticMatches, 9 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 53396.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=915occurred in iteration=0, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 294.6ms AutomataMinimizationTime, 11 MinimizatonAttempts, 1164 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 141.4ms SsaConstructionTime, 686.1ms SatisfiabilityAnalysisTime, 89399.6ms InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 82 ConstructedInterpolants, 28 QuantifiedInterpolants, 2543 SizeOfPredicates, 71 NumberOfNonLiveVariables, 854 ConjunctsInSsa, 111 ConjunctsInUnsatCore, 22 InterpolantComputations, 17 PerfectInterpolantSequences, 7/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-07 15:37:30,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...