/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/loop-tiling-eq.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c503be2 [2021-10-13 20:24:57,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 20:24:57,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 20:24:57,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-13 20:24:57,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 20:24:57,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 20:24:57,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 20:24:57,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 20:24:57,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 20:24:57,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 20:24:57,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 20:24:57,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 20:24:57,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 20:24:57,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 20:24:57,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 20:24:57,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 20:24:57,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-13 20:24:57,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 20:24:57,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 20:24:57,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 20:24:57,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 20:24:57,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 20:24:57,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 20:24:57,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 20:24:57,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 20:24:57,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 20:24:57,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 20:24:57,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 20:24:57,889 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-13 20:24:57,941 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 20:24:57,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 20:24:57,942 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 20:24:57,943 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 20:24:57,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 20:24:57,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 20:24:57,947 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 20:24:57,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 20:24:57,949 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 20:24:57,949 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 20:24:57,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 20:24:57,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 20:24:57,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 20:24:57,951 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 20:24:57,951 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 20:24:57,952 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 20:24:57,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 20:24:57,952 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 20:24:57,953 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 20:24:57,953 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 20:24:57,953 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 20:24:57,953 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 20:24:57,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 20:24:57,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 20:24:57,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 20:24:57,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 20:24:57,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 20:24:57,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 20:24:57,955 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 20:24:57,955 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 20:24:57,955 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 20:24:57,955 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 20:24:57,956 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 20:24:58,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 20:24:58,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 20:24:58,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 20:24:58,393 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 20:24:58,394 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 20:24:58,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c [2021-10-13 20:24:58,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a8148adae/647a0e1424bb4c718f1a52bc9b374b00/FLAG050590b71 [2021-10-13 20:24:59,205 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 20:24:59,205 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c [2021-10-13 20:24:59,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a8148adae/647a0e1424bb4c718f1a52bc9b374b00/FLAG050590b71 [2021-10-13 20:24:59,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a8148adae/647a0e1424bb4c718f1a52bc9b374b00 [2021-10-13 20:24:59,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 20:24:59,525 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 20:24:59,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 20:24:59,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 20:24:59,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 20:24:59,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:24:59" (1/1) ... [2021-10-13 20:24:59,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a7ef93b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:24:59, skipping insertion in model container [2021-10-13 20:24:59,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:24:59" (1/1) ... [2021-10-13 20:24:59,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 20:24:59,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 20:24:59,778 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/loop-tiling-eq.wvr.c[2618,2631] [2021-10-13 20:24:59,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 20:24:59,805 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 20:24:59,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 20:24:59,831 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/loop-tiling-eq.wvr.c[2618,2631] [2021-10-13 20:24:59,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 20:24:59,849 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 20:24:59,907 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/loop-tiling-eq.wvr.c[2618,2631] [2021-10-13 20:24:59,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 20:24:59,938 INFO L208 MainTranslator]: Completed translation [2021-10-13 20:24:59,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:24:59 WrapperNode [2021-10-13 20:24:59,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 20:24:59,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 20:24:59,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 20:24:59,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 20:24:59,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:24:59" (1/1) ... [2021-10-13 20:24:59,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:24:59" (1/1) ... [2021-10-13 20:25:00,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 20:25:00,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 20:25:00,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 20:25:00,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 20:25:00,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:24:59" (1/1) ... [2021-10-13 20:25:00,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:24:59" (1/1) ... [2021-10-13 20:25:00,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:24:59" (1/1) ... [2021-10-13 20:25:00,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:24:59" (1/1) ... [2021-10-13 20:25:00,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:24:59" (1/1) ... [2021-10-13 20:25:00,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:24:59" (1/1) ... [2021-10-13 20:25:00,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:24:59" (1/1) ... [2021-10-13 20:25:00,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 20:25:00,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 20:25:00,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 20:25:00,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 20:25:00,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:24:59" (1/1) ... [2021-10-13 20:25:00,130 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 20:25:00,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 20:25:00,163 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) [2021-10-13 20:25:00,187 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 [2021-10-13 20:25:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 20:25:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 20:25:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 20:25:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 20:25:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 20:25:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-13 20:25:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-13 20:25:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-13 20:25:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-13 20:25:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 20:25:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 20:25:00,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 20:25:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 20:25:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 20:25:00,234 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 20:25:01,598 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 20:25:01,598 INFO L299 CfgBuilder]: Removed 41 assume(true) statements. [2021-10-13 20:25:01,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:25:01 BoogieIcfgContainer [2021-10-13 20:25:01,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 20:25:01,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 20:25:01,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 20:25:01,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 20:25:01,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:24:59" (1/3) ... [2021-10-13 20:25:01,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3895b455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:25:01, skipping insertion in model container [2021-10-13 20:25:01,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:24:59" (2/3) ... [2021-10-13 20:25:01,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3895b455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:25:01, skipping insertion in model container [2021-10-13 20:25:01,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:25:01" (3/3) ... [2021-10-13 20:25:01,611 INFO L111 eAbstractionObserver]: Analyzing ICFG loop-tiling-eq.wvr.c [2021-10-13 20:25:01,618 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 20:25:01,618 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-10-13 20:25:01,618 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 20:25:01,663 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,664 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,664 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,664 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,664 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,664 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,665 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,665 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,665 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,665 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,665 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,666 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,668 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,668 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,668 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,669 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,669 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,669 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,670 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,670 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,671 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,671 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,671 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,671 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,671 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,672 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,672 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,672 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,672 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,673 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,673 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,673 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,673 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,673 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,674 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,674 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,674 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,675 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,675 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,675 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,675 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,675 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,676 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,676 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,676 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,676 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,676 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,677 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,677 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,677 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,677 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,677 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,678 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,678 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,678 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,678 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,678 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,679 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,679 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,679 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,679 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,680 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,680 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,680 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,680 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,680 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,681 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,681 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,681 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,682 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,682 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,682 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,682 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,683 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,683 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,683 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,683 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,684 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,684 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,684 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,684 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,684 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,685 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,685 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,685 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,685 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,686 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,686 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,686 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,686 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,687 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,687 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,687 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,687 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,687 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,688 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,688 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,688 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,688 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,688 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,688 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,689 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,689 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,689 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,689 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,689 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,690 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,694 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,695 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,696 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,696 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,696 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,701 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,702 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,702 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,702 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,703 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:25:01,709 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-13 20:25:01,771 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 20:25:01,780 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 [2021-10-13 20:25:01,780 INFO L340 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2021-10-13 20:25:01,804 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 20:25:01,818 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 255 places, 274 transitions, 564 flow [2021-10-13 20:25:01,822 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 255 places, 274 transitions, 564 flow [2021-10-13 20:25:01,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 255 places, 274 transitions, 564 flow [2021-10-13 20:25:01,931 INFO L129 PetriNetUnfolder]: 26/272 cut-off events. [2021-10-13 20:25:01,931 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-13 20:25:01,939 INFO L84 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 272 events. 26/272 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 444 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 194. Up to 2 conditions per place. [2021-10-13 20:25:01,944 INFO L116 LiptonReduction]: Number of co-enabled transitions 1820 [2021-10-13 20:27:22,807 WARN L207 SmtUtils]: Spent 7.42 s on a formula simplification. DAG size of input: 140 DAG size of output: 137 [2021-10-13 20:27:35,903 WARN L207 SmtUtils]: Spent 9.51 s on a formula simplification. DAG size of input: 157 DAG size of output: 154 [2021-10-13 20:27:39,990 INFO L131 LiptonReduction]: Checked pairs total: 3880 [2021-10-13 20:27:39,990 INFO L133 LiptonReduction]: Total number of compositions: 325 [2021-10-13 20:27:40,000 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 64 transitions, 144 flow [2021-10-13 20:27:40,038 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 489 states, 343 states have (on average 3.7346938775510203) internal successors, (1281), 488 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:27:40,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 489 states, 343 states have (on average 3.7346938775510203) internal successors, (1281), 488 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:27:40,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-13 20:27:40,051 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:27:40,051 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-13 20:27:40,052 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 42 more)] === [2021-10-13 20:27:40,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:27:40,059 INFO L82 PathProgramCache]: Analyzing trace with hash 33785, now seen corresponding path program 1 times [2021-10-13 20:27:40,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:27:40,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132651464] [2021-10-13 20:27:40,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:27:40,075 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:27:40,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:27:40,078 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) [2021-10-13 20:27:40,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 20:27:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:27:40,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 20:27:40,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:27:40,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:27:40,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:27:40,720 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-13 20:27:40,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 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 [2021-10-13 20:27:40,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:27:40,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:27:40,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:27:40,986 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:27:40,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132651464] [2021-10-13 20:27:40,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132651464] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:27:40,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:27:40,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-13 20:27:40,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701622168] [2021-10-13 20:27:40,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 20:27:40,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:27:41,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 20:27:41,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:27:41,014 INFO L87 Difference]: Start difference. First operand has 489 states, 343 states have (on average 3.7346938775510203) internal successors, (1281), 488 states have internal predecessors, (1281), 0 states have call successors, (0), 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) [2021-10-13 20:27:43,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:27:43,044 INFO L93 Difference]: Finished difference Result 978 states and 2567 transitions. [2021-10-13 20:27:43,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 20:27:43,051 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 [2021-10-13 20:27:43,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:27:43,105 INFO L225 Difference]: With dead ends: 978 [2021-10-13 20:27:43,106 INFO L226 Difference]: Without dead ends: 978 [2021-10-13 20:27:43,107 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 116.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:27:43,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2021-10-13 20:27:43,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 494. [2021-10-13 20:27:43,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 349 states have (on average 3.7306590257879657) internal successors, (1302), 493 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:27:43,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 1302 transitions. [2021-10-13 20:27:43,207 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 1302 transitions. Word has length 2 [2021-10-13 20:27:43,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:27:43,207 INFO L470 AbstractCegarLoop]: Abstraction has 494 states and 1302 transitions. [2021-10-13 20:27:43,207 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) [2021-10-13 20:27:43,208 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 1302 transitions. [2021-10-13 20:27:43,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-13 20:27:43,208 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:27:43,208 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-13 20:27:43,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 20:27:43,422 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 [2021-10-13 20:27:43,423 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 42 more)] === [2021-10-13 20:27:43,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:27:43,425 INFO L82 PathProgramCache]: Analyzing trace with hash 33784, now seen corresponding path program 1 times [2021-10-13 20:27:43,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:27:43,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999600716] [2021-10-13 20:27:43,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:27:43,426 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:27:43,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:27:43,428 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) [2021-10-13 20:27:43,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 20:27:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:27:43,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 20:27:43,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:27:43,847 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-13 20:27:43,848 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 [2021-10-13 20:27:44,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:27:44,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:27:44,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:27:44,685 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:27:44,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999600716] [2021-10-13 20:27:44,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [999600716] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:27:44,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:27:44,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-13 20:27:44,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164046734] [2021-10-13 20:27:44,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 20:27:44,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:27:44,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 20:27:44,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 20:27:44,690 INFO L87 Difference]: Start difference. First operand 494 states and 1302 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) [2021-10-13 20:27:45,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:27:45,451 INFO L93 Difference]: Finished difference Result 491 states and 1293 transitions. [2021-10-13 20:27:45,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 20:27:45,456 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 [2021-10-13 20:27:45,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:27:45,461 INFO L225 Difference]: With dead ends: 491 [2021-10-13 20:27:45,461 INFO L226 Difference]: Without dead ends: 491 [2021-10-13 20:27:45,462 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 20:27:45,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2021-10-13 20:27:45,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2021-10-13 20:27:45,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 349 states have (on average 3.7048710601719197) internal successors, (1293), 490 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:27:45,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 1293 transitions. [2021-10-13 20:27:45,496 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 1293 transitions. Word has length 2 [2021-10-13 20:27:45,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:27:45,497 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 1293 transitions. [2021-10-13 20:27:45,497 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) [2021-10-13 20:27:45,497 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 1293 transitions. [2021-10-13 20:27:45,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 20:27:45,498 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:27:45,498 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-13 20:27:45,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 20:27:45,713 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 [2021-10-13 20:27:45,714 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 42 more)] === [2021-10-13 20:27:45,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:27:45,715 INFO L82 PathProgramCache]: Analyzing trace with hash 32628921, now seen corresponding path program 1 times [2021-10-13 20:27:45,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:27:45,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [185957472] [2021-10-13 20:27:45,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:27:45,717 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:27:45,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:27:45,718 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) [2021-10-13 20:27:45,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 20:27:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:27:45,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 20:27:45,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:27:45,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:27:45,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:27:46,252 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-13 20:27:46,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 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 [2021-10-13 20:27:46,566 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:27:46,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:27:47,298 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:27:47,298 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:27:47,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [185957472] [2021-10-13 20:27:47,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [185957472] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 20:27:47,299 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 20:27:47,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2021-10-13 20:27:47,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426508310] [2021-10-13 20:27:47,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 20:27:47,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:27:47,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 20:27:47,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 20:27:47,301 INFO L87 Difference]: Start difference. First operand 491 states and 1293 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) [2021-10-13 20:28:02,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:28:02,883 INFO L93 Difference]: Finished difference Result 2413 states and 6377 transitions. [2021-10-13 20:28:02,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 20:28:02,887 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 [2021-10-13 20:28:02,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:28:02,908 INFO L225 Difference]: With dead ends: 2413 [2021-10-13 20:28:02,909 INFO L226 Difference]: Without dead ends: 2413 [2021-10-13 20:28:02,909 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1238.0ms TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-10-13 20:28:02,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2021-10-13 20:28:02,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 501. [2021-10-13 20:28:02,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 359 states have (on average 3.668523676880223) internal successors, (1317), 500 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:28:02,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 1317 transitions. [2021-10-13 20:28:02,953 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 1317 transitions. Word has length 4 [2021-10-13 20:28:02,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:28:02,953 INFO L470 AbstractCegarLoop]: Abstraction has 501 states and 1317 transitions. [2021-10-13 20:28:02,953 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) [2021-10-13 20:28:02,953 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 1317 transitions. [2021-10-13 20:28:02,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 20:28:02,954 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:28:02,954 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 20:28:02,966 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-13 20:28:03,165 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 [2021-10-13 20:28:03,166 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 42 more)] === [2021-10-13 20:28:03,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:28:03,167 INFO L82 PathProgramCache]: Analyzing trace with hash 32682406, now seen corresponding path program 1 times [2021-10-13 20:28:03,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:28:03,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785399310] [2021-10-13 20:28:03,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:28:03,169 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:28:03,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:28:03,170 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) [2021-10-13 20:28:03,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 20:28:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:28:03,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 20:28:03,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:28:03,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:28:03,752 INFO L354 Elim1Store]: treesize reduction 210, result has 19.5 percent of original size [2021-10-13 20:28:03,753 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 241 treesize of output 259 [2021-10-13 20:28:06,749 INFO L354 Elim1Store]: treesize reduction 138, result has 41.3 percent of original size [2021-10-13 20:28:06,749 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 88 treesize of output 171 [2021-10-13 20:28:23,063 INFO L354 Elim1Store]: treesize reduction 230, result has 23.8 percent of original size [2021-10-13 20:28:23,064 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 208 treesize of output 264 [2021-10-13 20:28:54,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:28:54,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:28:54,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:28:54,780 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:28:54,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785399310] [2021-10-13 20:28:54,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785399310] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:28:54,781 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:28:54,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 2] imperfect sequences [] total 5 [2021-10-13 20:28:54,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739560024] [2021-10-13 20:28:54,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 20:28:54,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:28:54,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 20:28:54,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=20, Unknown=3, NotChecked=0, Total=42 [2021-10-13 20:28:54,783 INFO L87 Difference]: Start difference. First operand 501 states and 1317 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2021-10-13 20:28:58,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:28:58,412 INFO L93 Difference]: Finished difference Result 404 states and 1020 transitions. [2021-10-13 20:28:58,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 20:28:58,417 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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 [2021-10-13 20:28:58,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:28:58,419 INFO L225 Difference]: With dead ends: 404 [2021-10-13 20:28:58,420 INFO L226 Difference]: Without dead ends: 404 [2021-10-13 20:28:58,421 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8058.7ms TimeCoverageRelationStatistics Valid=26, Invalid=27, Unknown=3, NotChecked=0, Total=56 [2021-10-13 20:28:58,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2021-10-13 20:28:58,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2021-10-13 20:28:58,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 298 states have (on average 3.422818791946309) internal successors, (1020), 403 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:28:58,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 1020 transitions. [2021-10-13 20:28:58,445 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 1020 transitions. Word has length 4 [2021-10-13 20:28:58,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:28:58,445 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 1020 transitions. [2021-10-13 20:28:58,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2021-10-13 20:28:58,449 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 1020 transitions. [2021-10-13 20:28:58,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 20:28:58,449 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:28:58,449 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 20:28:58,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 20:28:58,658 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 [2021-10-13 20:28:58,658 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 42 more)] === [2021-10-13 20:28:58,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:28:58,662 INFO L82 PathProgramCache]: Analyzing trace with hash 32682407, now seen corresponding path program 1 times [2021-10-13 20:28:58,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:28:58,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1839349613] [2021-10-13 20:28:58,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:28:58,663 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:28:58,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:28:58,664 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) [2021-10-13 20:28:58,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 20:28:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:28:58,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 20:28:58,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:28:59,219 INFO L354 Elim1Store]: treesize reduction 151, result has 21.8 percent of original size [2021-10-13 20:28:59,220 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 63 treesize of output 91 [2021-10-13 20:28:59,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:28:59,594 INFO L354 Elim1Store]: treesize reduction 210, result has 19.5 percent of original size [2021-10-13 20:28:59,594 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 137 treesize of output 167 [2021-10-13 20:29:02,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:29:02,941 INFO L354 Elim1Store]: treesize reduction 100, result has 20.0 percent of original size [2021-10-13 20:29:02,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 103 treesize of output 116 [2021-10-13 20:29:02,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:29:03,178 INFO L354 Elim1Store]: treesize reduction 93, result has 37.6 percent of original size [2021-10-13 20:29:03,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 107 treesize of output 151 [2021-10-13 20:29:08,927 INFO L354 Elim1Store]: treesize reduction 108, result has 18.8 percent of original size [2021-10-13 20:29:08,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 129 treesize of output 140 [2021-10-13 20:29:09,169 INFO L354 Elim1Store]: treesize reduction 39, result has 51.9 percent of original size [2021-10-13 20:29:09,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 131 treesize of output 162 [2021-10-13 20:29:42,274 WARN L207 SmtUtils]: Spent 12.17 s on a formula simplification that was a NOOP. DAG size: 78 [2021-10-13 20:29:42,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:29:42,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:29:43,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:29:43,616 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:29:43,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1839349613] [2021-10-13 20:29:43,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1839349613] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:29:43,617 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:29:43,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-10-13 20:29:43,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528772783] [2021-10-13 20:29:43,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 20:29:43,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:29:43,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 20:29:43,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=33, Unknown=1, NotChecked=0, Total=56 [2021-10-13 20:29:43,622 INFO L87 Difference]: Start difference. First operand 404 states and 1020 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) [2021-10-13 20:30:04,255 WARN L207 SmtUtils]: Spent 16.15 s on a formula simplification that was a NOOP. DAG size: 104 [2021-10-13 20:31:24,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:31:24,699 INFO L93 Difference]: Finished difference Result 589 states and 1394 transitions. [2021-10-13 20:31:24,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 20:31:24,708 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 [2021-10-13 20:31:24,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:31:24,713 INFO L225 Difference]: With dead ends: 589 [2021-10-13 20:31:24,713 INFO L226 Difference]: Without dead ends: 589 [2021-10-13 20:31:24,714 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 30822.0ms TimeCoverageRelationStatistics Valid=30, Invalid=41, Unknown=1, NotChecked=0, Total=72 [2021-10-13 20:31:24,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2021-10-13 20:31:24,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 307. [2021-10-13 20:31:24,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 237 states have (on average 3.050632911392405) internal successors, (723), 306 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:31:24,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 723 transitions. [2021-10-13 20:31:24,728 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 723 transitions. Word has length 4 [2021-10-13 20:31:24,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:31:24,728 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 723 transitions. [2021-10-13 20:31:24,729 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) [2021-10-13 20:31:24,729 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 723 transitions. [2021-10-13 20:31:24,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 20:31:24,729 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:31:24,729 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 20:31:24,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 20:31:24,943 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 [2021-10-13 20:31:24,944 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 42 more)] === [2021-10-13 20:31:24,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:31:24,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1013159214, now seen corresponding path program 1 times [2021-10-13 20:31:24,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:31:24,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1381314372] [2021-10-13 20:31:24,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:31:24,945 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:31:24,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:31:24,947 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) [2021-10-13 20:31:24,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 20:31:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:31:25,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 20:31:25,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:31:25,186 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 8 treesize of output 7 [2021-10-13 20:31:25,209 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 [2021-10-13 20:31:25,300 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-10-13 20:31:25,300 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 37 treesize of output 39 [2021-10-13 20:31:25,324 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 20:31:25,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 36 [2021-10-13 20:31:25,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:31:25,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:31:25,861 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 32 treesize of output 30 [2021-10-13 20:31:25,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:31:25,871 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:31:25,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1381314372] [2021-10-13 20:31:25,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1381314372] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:31:25,871 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:31:25,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-10-13 20:31:25,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538364084] [2021-10-13 20:31:25,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 20:31:25,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:31:25,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 20:31:25,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 20:31:25,873 INFO L87 Difference]: Start difference. First operand 307 states and 723 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) 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) [2021-10-13 20:31:58,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:31:58,769 INFO L93 Difference]: Finished difference Result 662 states and 1631 transitions. [2021-10-13 20:31:58,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 20:31:58,773 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) 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 [2021-10-13 20:31:58,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:31:58,779 INFO L225 Difference]: With dead ends: 662 [2021-10-13 20:31:58,779 INFO L226 Difference]: Without dead ends: 662 [2021-10-13 20:31:58,779 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2409.1ms TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2021-10-13 20:31:58,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-10-13 20:31:58,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 447. [2021-10-13 20:31:58,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 377 states have (on average 3.217506631299735) internal successors, (1213), 446 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:31:58,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 1213 transitions. [2021-10-13 20:31:58,798 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 1213 transitions. Word has length 5 [2021-10-13 20:31:58,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:31:58,798 INFO L470 AbstractCegarLoop]: Abstraction has 447 states and 1213 transitions. [2021-10-13 20:31:58,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) 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) [2021-10-13 20:31:58,798 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 1213 transitions. [2021-10-13 20:31:58,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 20:31:58,799 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:31:58,799 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 20:31:58,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 20:31:59,013 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 [2021-10-13 20:31:59,014 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 42 more)] === [2021-10-13 20:31:59,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:31:59,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1343042950, now seen corresponding path program 1 times [2021-10-13 20:31:59,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:31:59,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133758331] [2021-10-13 20:31:59,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:31:59,016 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:31:59,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:31:59,018 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) [2021-10-13 20:31:59,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 20:31:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:31:59,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:31:59,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:31:59,526 INFO L354 Elim1Store]: treesize reduction 155, result has 19.7 percent of original size [2021-10-13 20:31:59,526 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 42 treesize of output 66 [2021-10-13 20:31:59,536 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 121 treesize of output 117 [2021-10-13 20:32:02,352 INFO L354 Elim1Store]: treesize reduction 64, result has 27.3 percent of original size [2021-10-13 20:32:02,353 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 37 treesize of output 53 [2021-10-13 20:32:04,200 INFO L354 Elim1Store]: treesize reduction 84, result has 36.8 percent of original size [2021-10-13 20:32:04,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 97 [2021-10-13 20:32:31,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:32:31,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:32:31,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:32:31,946 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:32:31,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133758331] [2021-10-13 20:32:31,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133758331] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:32:31,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:32:31,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 2] imperfect sequences [] total 5 [2021-10-13 20:32:31,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823764198] [2021-10-13 20:32:31,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 20:32:31,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:32:31,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 20:32:31,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2021-10-13 20:32:31,948 INFO L87 Difference]: Start difference. First operand 447 states and 1213 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 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) [2021-10-13 20:33:33,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:33:33,523 INFO L93 Difference]: Finished difference Result 801 states and 1921 transitions. [2021-10-13 20:33:33,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 20:33:33,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 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 [2021-10-13 20:33:33,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:33:33,532 INFO L225 Difference]: With dead ends: 801 [2021-10-13 20:33:33,532 INFO L226 Difference]: Without dead ends: 801 [2021-10-13 20:33:33,533 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 9834.6ms TimeCoverageRelationStatistics Valid=39, Invalid=50, Unknown=1, NotChecked=0, Total=90 [2021-10-13 20:33:33,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2021-10-13 20:33:33,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 422. [2021-10-13 20:33:33,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 364 states have (on average 3.1483516483516483) internal successors, (1146), 421 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:33:33,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 1146 transitions. [2021-10-13 20:33:33,554 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 1146 transitions. Word has length 6 [2021-10-13 20:33:33,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:33:33,555 INFO L470 AbstractCegarLoop]: Abstraction has 422 states and 1146 transitions. [2021-10-13 20:33:33,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 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) [2021-10-13 20:33:33,555 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 1146 transitions. [2021-10-13 20:33:33,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 20:33:33,556 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:33:33,556 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 20:33:33,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 20:33:33,775 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 [2021-10-13 20:33:33,776 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 42 more)] === [2021-10-13 20:33:33,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:33:33,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1343042952, now seen corresponding path program 1 times [2021-10-13 20:33:33,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:33:33,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785754285] [2021-10-13 20:33:33,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:33:33,778 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:33:33,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:33:33,779 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) [2021-10-13 20:33:33,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 20:33:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:33:33,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 20:33:34,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:33:34,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:33:34,304 INFO L354 Elim1Store]: treesize reduction 210, result has 19.5 percent of original size [2021-10-13 20:33:34,305 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 5 case distinctions, treesize of input 147 treesize of output 177 [2021-10-13 20:33:37,117 INFO L354 Elim1Store]: treesize reduction 138, result has 41.3 percent of original size [2021-10-13 20:33:37,117 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 90 treesize of output 173 [2021-10-13 20:33:46,621 INFO L354 Elim1Store]: treesize reduction 230, result has 23.8 percent of original size [2021-10-13 20:33:46,622 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 196 treesize of output 246 [2021-10-13 20:35:16,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:35:16,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:35:16,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:35:16,664 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:35:16,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785754285] [2021-10-13 20:35:16,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785754285] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:35:16,664 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:35:16,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 2] imperfect sequences [] total 5 [2021-10-13 20:35:16,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717437005] [2021-10-13 20:35:16,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 20:35:16,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:35:16,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 20:35:16,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=22, Unknown=2, NotChecked=0, Total=42 [2021-10-13 20:35:16,666 INFO L87 Difference]: Start difference. First operand 422 states and 1146 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 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) [2021-10-13 20:35:26,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:35:26,445 INFO L93 Difference]: Finished difference Result 397 states and 1079 transitions. [2021-10-13 20:35:26,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 20:35:26,451 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 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 [2021-10-13 20:35:26,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:35:26,453 INFO L225 Difference]: With dead ends: 397 [2021-10-13 20:35:26,453 INFO L226 Difference]: Without dead ends: 397 [2021-10-13 20:35:26,454 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7518.0ms TimeCoverageRelationStatistics Valid=25, Invalid=29, Unknown=2, NotChecked=0, Total=56 [2021-10-13 20:35:26,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2021-10-13 20:35:26,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2021-10-13 20:35:26,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 351 states have (on average 3.074074074074074) internal successors, (1079), 396 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:35:26,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 1079 transitions. [2021-10-13 20:35:26,467 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 1079 transitions. Word has length 6 [2021-10-13 20:35:26,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:35:26,468 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 1079 transitions. [2021-10-13 20:35:26,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 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) [2021-10-13 20:35:26,468 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 1079 transitions. [2021-10-13 20:35:26,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 20:35:26,469 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:35:26,469 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-10-13 20:35:26,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 20:35:26,682 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 [2021-10-13 20:35:26,683 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 42 more)] === [2021-10-13 20:35:26,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:35:26,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1311423565, now seen corresponding path program 1 times [2021-10-13 20:35:26,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:35:26,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407034051] [2021-10-13 20:35:26,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:35:26,686 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:35:26,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:35:26,687 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) [2021-10-13 20:35:26,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 20:35:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:35:26,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 20:35:26,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:35:26,957 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-13 20:35:26,957 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 14 treesize of output 19 [2021-10-13 20:35:26,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:35:26,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:35:27,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:35:27,018 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:35:27,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407034051] [2021-10-13 20:35:27,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407034051] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:35:27,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:35:27,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 20:35:27,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837356416] [2021-10-13 20:35:27,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 20:35:27,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:35:27,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 20:35:27,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 20:35:27,021 INFO L87 Difference]: Start difference. First operand 397 states and 1079 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:35:27,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:35:27,750 INFO L93 Difference]: Finished difference Result 377 states and 1024 transitions. [2021-10-13 20:35:27,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 20:35:27,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 [2021-10-13 20:35:27,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:35:27,759 INFO L225 Difference]: With dead ends: 377 [2021-10-13 20:35:27,759 INFO L226 Difference]: Without dead ends: 377 [2021-10-13 20:35:27,759 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 20:35:27,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-10-13 20:35:27,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 329. [2021-10-13 20:35:27,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 290 states have (on average 3.103448275862069) internal successors, (900), 328 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:35:27,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 900 transitions. [2021-10-13 20:35:27,770 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 900 transitions. Word has length 7 [2021-10-13 20:35:27,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:35:27,770 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 900 transitions. [2021-10-13 20:35:27,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:35:27,771 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 900 transitions. [2021-10-13 20:35:27,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 20:35:27,771 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:35:27,772 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:35:27,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 20:35:27,985 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 [2021-10-13 20:35:27,985 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 42 more)] === [2021-10-13 20:35:27,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:35:27,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1315349983, now seen corresponding path program 1 times [2021-10-13 20:35:27,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:35:27,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712380772] [2021-10-13 20:35:27,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:35:27,988 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:35:27,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:35:27,989 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) [2021-10-13 20:35:27,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 20:35:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:35:28,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 20:35:28,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:35:28,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:35:28,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:35:28,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:35:28,424 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:35:28,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712380772] [2021-10-13 20:35:28,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712380772] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:35:28,425 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:35:28,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-10-13 20:35:28,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585824914] [2021-10-13 20:35:28,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 20:35:28,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:35:28,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 20:35:28,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-13 20:35:28,426 INFO L87 Difference]: Start difference. First operand 329 states and 900 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:35:29,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:35:29,260 INFO L93 Difference]: Finished difference Result 553 states and 1370 transitions. [2021-10-13 20:35:29,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 20:35:29,262 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-13 20:35:29,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:35:29,265 INFO L225 Difference]: With dead ends: 553 [2021-10-13 20:35:29,265 INFO L226 Difference]: Without dead ends: 553 [2021-10-13 20:35:29,265 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 246.9ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-13 20:35:29,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2021-10-13 20:35:29,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 426. [2021-10-13 20:35:29,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 387 states have (on average 3.0) internal successors, (1161), 425 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:35:29,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1161 transitions. [2021-10-13 20:35:29,279 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1161 transitions. Word has length 7 [2021-10-13 20:35:29,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:35:29,280 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 1161 transitions. [2021-10-13 20:35:29,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:35:29,280 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1161 transitions. [2021-10-13 20:35:29,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 20:35:29,281 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:35:29,281 INFO L512 BasicCegarLoop]: trace histogram [6, 1, 1] [2021-10-13 20:35:29,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 20:35:29,500 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 [2021-10-13 20:35:29,500 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 42 more)] === [2021-10-13 20:35:29,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:35:29,501 INFO L82 PathProgramCache]: Analyzing trace with hash 158599737, now seen corresponding path program 2 times [2021-10-13 20:35:29,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:35:29,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413799969] [2021-10-13 20:35:29,502 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 20:35:29,503 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:35:29,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:35:29,504 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) [2021-10-13 20:35:29,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 20:35:29,736 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 20:35:29,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 20:35:29,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-13 20:35:29,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:35:29,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:35:29,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 20:35:30,084 INFO L354 Elim1Store]: treesize reduction 141, result has 26.9 percent of original size [2021-10-13 20:35:30,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 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 [2021-10-13 20:35:30,661 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:35:30,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:35:32,823 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:35:32,823 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:35:32,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413799969] [2021-10-13 20:35:32,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413799969] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 20:35:32,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 20:35:32,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-10-13 20:35:32,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760841297] [2021-10-13 20:35:32,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-13 20:35:32,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:35:32,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-13 20:35:32,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2021-10-13 20:35:32,825 INFO L87 Difference]: Start difference. First operand 426 states and 1161 transitions. Second operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:36:21,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:36:21,803 INFO L93 Difference]: Finished difference Result 2740 states and 6908 transitions. [2021-10-13 20:36:21,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 20:36:21,809 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 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 8 [2021-10-13 20:36:21,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:36:21,828 INFO L225 Difference]: With dead ends: 2740 [2021-10-13 20:36:21,828 INFO L226 Difference]: Without dead ends: 2740 [2021-10-13 20:36:21,829 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 8620.4ms TimeCoverageRelationStatistics Valid=174, Invalid=288, Unknown=0, NotChecked=0, Total=462 [2021-10-13 20:36:21,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2021-10-13 20:36:21,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 461. [2021-10-13 20:36:21,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 422 states have (on average 2.9360189573459716) internal successors, (1239), 460 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:36:21,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 1239 transitions. [2021-10-13 20:36:21,864 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 1239 transitions. Word has length 8 [2021-10-13 20:36:21,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:36:21,864 INFO L470 AbstractCegarLoop]: Abstraction has 461 states and 1239 transitions. [2021-10-13 20:36:21,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:36:21,865 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 1239 transitions. [2021-10-13 20:36:21,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 20:36:21,866 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:36:21,866 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:36:21,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-10-13 20:36:22,081 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 [2021-10-13 20:36:22,082 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err2REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 42 more)] === [2021-10-13 20:36:22,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:36:22,083 INFO L82 PathProgramCache]: Analyzing trace with hash 715400675, now seen corresponding path program 1 times [2021-10-13 20:36:22,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:36:22,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714689450] [2021-10-13 20:36:22,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:36:22,083 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:36:22,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:36:22,084 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) [2021-10-13 20:36:22,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-13 20:36:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:36:22,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 20:36:22,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:36:23,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 20:36:23,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:36:24,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 20:36:24,084 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:36:24,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1714689450] [2021-10-13 20:36:24,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1714689450] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 20:36:24,085 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 20:36:24,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-10-13 20:36:24,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190130791] [2021-10-13 20:36:24,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 20:36:24,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:36:24,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 20:36:24,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-13 20:36:24,086 INFO L87 Difference]: Start difference. First operand 461 states and 1239 transitions. Second operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:36:34,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:36:34,265 INFO L93 Difference]: Finished difference Result 891 states and 2141 transitions. [2021-10-13 20:36:34,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 20:36:34,269 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-13 20:36:34,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:36:34,274 INFO L225 Difference]: With dead ends: 891 [2021-10-13 20:36:34,274 INFO L226 Difference]: Without dead ends: 891 [2021-10-13 20:36:34,275 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1789.9ms TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-10-13 20:36:34,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2021-10-13 20:36:34,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 419. [2021-10-13 20:36:34,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 380 states have (on average 2.710526315789474) internal successors, (1030), 418 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:36:34,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 1030 transitions. [2021-10-13 20:36:34,290 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 1030 transitions. Word has length 9 [2021-10-13 20:36:34,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:36:34,290 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 1030 transitions. [2021-10-13 20:36:34,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:36:34,290 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 1030 transitions. [2021-10-13 20:36:34,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 20:36:34,291 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:36:34,291 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2021-10-13 20:36:34,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-13 20:36:34,492 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 [2021-10-13 20:36:34,492 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 42 more)] === [2021-10-13 20:36:34,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:36:34,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1852481226, now seen corresponding path program 1 times [2021-10-13 20:36:34,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:36:34,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1815128280] [2021-10-13 20:36:34,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:36:34,495 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:36:34,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:36:34,496 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 20:36:34,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-13 20:36:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:36:34,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-13 20:36:34,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:36:34,866 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 8 treesize of output 7 [2021-10-13 20:36:34,881 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 [2021-10-13 20:36:35,027 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-10-13 20:36:35,028 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 30 treesize of output 32 [2021-10-13 20:36:35,061 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 20:36:35,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 29 [2021-10-13 20:36:41,558 INFO L354 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size [2021-10-13 20:36:41,559 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 41 treesize of output 50 [2021-10-13 20:36:41,605 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 20:36:41,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 44 [2021-10-13 20:36:46,168 INFO L354 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size [2021-10-13 20:36:46,168 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 54 treesize of output 61 [2021-10-13 20:36:46,201 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 20:36:46,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 57 [2021-10-13 20:36:46,652 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:36:46,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:36:47,235 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-13 20:36:47,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 44 [2021-10-13 20:36:51,191 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-13 20:36:51,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 68 [2021-10-13 20:36:58,694 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 300 treesize of output 298 [2021-10-13 20:36:58,727 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:36:58,728 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:36:58,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1815128280] [2021-10-13 20:36:58,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1815128280] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 20:36:58,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 20:36:58,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-10-13 20:36:58,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018886388] [2021-10-13 20:36:58,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 20:36:58,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:36:58,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 20:36:58,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=154, Unknown=3, NotChecked=0, Total=210 [2021-10-13 20:36:58,730 INFO L87 Difference]: Start difference. First operand 419 states and 1030 transitions. Second operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:37:43,224 WARN L207 SmtUtils]: Spent 27.65 s on a formula simplification that was a NOOP. DAG size: 104 [2021-10-13 20:38:24,481 WARN L207 SmtUtils]: Spent 38.25 s on a formula simplification. DAG size of input: 104 DAG size of output: 103 Received shutdown request... [2021-10-13 20:38:59,425 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-13 20:38:59,442 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-13 20:39:00,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 20:39:00,248 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-13 20:39:00,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-13 20:39:00,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-13 20:39:00,452 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). [2021-10-13 20:39:00,455 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0REQUIRES_VIOLATION [2021-10-13 20:39:00,456 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1REQUIRES_VIOLATION [2021-10-13 20:39:00,456 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2REQUIRES_VIOLATION [2021-10-13 20:39:00,456 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3REQUIRES_VIOLATION [2021-10-13 20:39:00,456 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0REQUIRES_VIOLATION [2021-10-13 20:39:00,456 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1REQUIRES_VIOLATION [2021-10-13 20:39:00,457 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2REQUIRES_VIOLATION [2021-10-13 20:39:00,457 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3REQUIRES_VIOLATION [2021-10-13 20:39:00,457 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4REQUIRES_VIOLATION [2021-10-13 20:39:00,457 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5REQUIRES_VIOLATION [2021-10-13 20:39:00,457 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-13 20:39:00,458 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-13 20:39:00,459 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-13 20:39:00,459 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-13 20:39:00,460 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-13 20:39:00,460 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-13 20:39:00,460 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-13 20:39:00,460 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-13 20:39:00,460 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-10-13 20:39:00,461 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-10-13 20:39:00,470 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-10-13 20:39:00,471 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-10-13 20:39:00,471 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-13 20:39:00,474 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-13 20:39:00,474 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-13 20:39:00,475 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr16REQUIRES_VIOLATION [2021-10-13 20:39:00,476 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-10-13 20:39:00,476 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-10-13 20:39:00,476 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr19REQUIRES_VIOLATION [2021-10-13 20:39:00,476 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr20REQUIRES_VIOLATION [2021-10-13 20:39:00,477 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr21REQUIRES_VIOLATION [2021-10-13 20:39:00,477 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 20:39:00,477 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 20:39:00,477 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 20:39:00,478 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 20:39:00,478 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0REQUIRES_VIOLATION [2021-10-13 20:39:00,478 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1REQUIRES_VIOLATION [2021-10-13 20:39:00,478 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2REQUIRES_VIOLATION [2021-10-13 20:39:00,478 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3REQUIRES_VIOLATION [2021-10-13 20:39:00,478 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0REQUIRES_VIOLATION [2021-10-13 20:39:00,479 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1REQUIRES_VIOLATION [2021-10-13 20:39:00,479 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2REQUIRES_VIOLATION [2021-10-13 20:39:00,479 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3REQUIRES_VIOLATION [2021-10-13 20:39:00,479 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4REQUIRES_VIOLATION [2021-10-13 20:39:00,479 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5REQUIRES_VIOLATION [2021-10-13 20:39:00,503 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 20:39:00,503 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 20:39:00,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:39:00 BasicIcfg [2021-10-13 20:39:00,519 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 20:39:00,524 INFO L168 Benchmark]: Toolchain (without parser) took 841000.90 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 125.9 MB in the beginning and 105.1 MB in the end (delta: 20.8 MB). Peak memory consumption was 52.5 MB. Max. memory is 8.0 GB. [2021-10-13 20:39:00,524 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 122.5 MB in the beginning and 122.5 MB in the end (delta: 80.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 20:39:00,525 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.76 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 112.0 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-13 20:39:00,528 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.84 ms. Allocated memory is still 151.0 MB. Free memory was 112.0 MB in the beginning and 109.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-13 20:39:00,529 INFO L168 Benchmark]: Boogie Preprocessor took 77.26 ms. Allocated memory is still 151.0 MB. Free memory was 109.8 MB in the beginning and 107.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 20:39:00,531 INFO L168 Benchmark]: RCFGBuilder took 1481.10 ms. Allocated memory is still 151.0 MB. Free memory was 107.7 MB in the beginning and 113.3 MB in the end (delta: -5.6 MB). Peak memory consumption was 10.8 MB. Max. memory is 8.0 GB. [2021-10-13 20:39:00,532 INFO L168 Benchmark]: TraceAbstraction took 838916.48 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 113.3 MB in the beginning and 105.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 38.6 MB. Max. memory is 8.0 GB. [2021-10-13 20:39:00,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 122.5 MB in the beginning and 122.5 MB in the end (delta: 80.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 410.76 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 112.0 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 99.84 ms. Allocated memory is still 151.0 MB. Free memory was 112.0 MB in the beginning and 109.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 77.26 ms. Allocated memory is still 151.0 MB. Free memory was 109.8 MB in the beginning and 107.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1481.10 ms. Allocated memory is still 151.0 MB. Free memory was 107.7 MB in the beginning and 113.3 MB in the end (delta: -5.6 MB). Peak memory consumption was 10.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 838916.48 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 113.3 MB in the beginning and 105.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 38.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 158167.9ms, 255 PlacesBefore, 64 PlacesAfterwards, 274 TransitionsBefore, 64 TransitionsAfterwards, 1820 CoEnabledTransitionPairs, 8 FixpointIterations, 213 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 40 TrivialYvCompositions, 6 ConcurrentYvCompositions, 19 ChoiceCompositions, 325 TotalNumberOfCompositions, 3880 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2438, positive: 2317, positive conditional: 0, positive unconditional: 2317, negative: 121, negative conditional: 0, negative unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1103, positive: 1069, positive conditional: 0, positive unconditional: 1069, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1103, positive: 1069, positive conditional: 0, positive unconditional: 1069, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36423, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4103, negative conditional: 0, negative unconditional: 4103, unknown: 32320, unknown conditional: 0, unknown unconditional: 32320] ], Cache Queries: [ total: 2438, positive: 1248, positive conditional: 0, positive unconditional: 1248, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 1103, unknown conditional: 0, unknown unconditional: 1103] , Statistics on independence cache: Total cache size (in pairs): 171, Positive cache size: 160, Positive conditional cache size: 0, Positive unconditional cache size: 160, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (419states) and FLOYD_HOARE automaton (currently 16 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (321 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 290 locations, 46 error locations. Started 1 CEGAR loops. OverallTime: 838715.6ms, OverallIterations: 13, TraceHistogramMax: 6, EmptinessCheckTime: 19.5ms, AutomataDifference: 409800.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 158258.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 483 SDtfs, 2760 SDslu, 1463 SDs, 0 SdLazy, 3652 SolverSat, 451 SolverUnsat, 106 SolverUnknown, 0 SolverNotchecked, 290710.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 37 SyntacticMatches, 6 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 165288.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=501occurred in iteration=3, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 324.9ms AutomataMinimizationTime, 12 MinimizatonAttempts, 6198 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 141.7ms SsaConstructionTime, 1673.9ms SatisfiabilityAnalysisTime, 264784.4ms InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 120 ConstructedInterpolants, 39 QuantifiedInterpolants, 4050 SizeOfPredicates, 91 NumberOfNonLiveVariables, 1115 ConjunctsInSsa, 135 ConjunctsInUnsatCore, 26 InterpolantComputations, 18 PerfectInterpolantSequences, 6/68 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown