/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/parallel/ticket-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-06 21:22:21,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-06 21:22:21,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-06 21:22:21,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-06 21:22:22,001 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-06 21:22:22,050 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-06 21:22:22,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-06 21:22:22,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-06 21:22:22,052 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-06 21:22:22,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-06 21:22:22,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-06 21:22:22,056 INFO L138 SettingsManager]: * Use SBE=true [2021-10-06 21:22:22,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-06 21:22:22,057 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-06 21:22:22,057 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-06 21:22:22,058 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-06 21:22:22,058 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-06 21:22:22,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-06 21:22:22,059 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-06 21:22:22,059 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-06 21:22:22,059 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-06 21:22:22,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-06 21:22:22,060 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-06 21:22:22,060 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-06 21:22:22,060 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-06 21:22:22,060 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-06 21:22:22,061 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-06 21:22:22,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-06 21:22:22,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-06 21:22:22,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-06 21:22:22,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 21:22:22,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-06 21:22:22,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-06 21:22:22,062 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-06 21:22:22,062 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-06 21:22:22,062 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-06 21:22:22,063 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-06 21:22:22,063 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-06 21:22:22,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-06 21:22:22,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-06 21:22:22,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-06 21:22:22,537 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-06 21:22:22,540 INFO L275 PluginConnector]: CDTParser initialized [2021-10-06 21:22:22,541 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel/ticket-2.wvr.c [2021-10-06 21:22:22,631 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0d8bac0f/a2a77164323a4ab384f213452ab390f7/FLAG267248c33 [2021-10-06 21:22:23,206 INFO L306 CDTParser]: Found 1 translation units. [2021-10-06 21:22:23,207 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel/ticket-2.wvr.c [2021-10-06 21:22:23,217 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0d8bac0f/a2a77164323a4ab384f213452ab390f7/FLAG267248c33 [2021-10-06 21:22:23,516 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0d8bac0f/a2a77164323a4ab384f213452ab390f7 [2021-10-06 21:22:23,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-06 21:22:23,526 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-06 21:22:23,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-06 21:22:23,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-06 21:22:23,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-06 21:22:23,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 09:22:23" (1/1) ... [2021-10-06 21:22:23,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@192ded8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:22:23, skipping insertion in model container [2021-10-06 21:22:23,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 09:22:23" (1/1) ... [2021-10-06 21:22:23,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-06 21:22:23,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-06 21:22:23,746 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/parallel/ticket-2.wvr.c[2232,2245] [2021-10-06 21:22:23,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 21:22:23,762 INFO L203 MainTranslator]: Completed pre-run [2021-10-06 21:22:23,784 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/parallel/ticket-2.wvr.c[2232,2245] [2021-10-06 21:22:23,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 21:22:23,803 INFO L208 MainTranslator]: Completed translation [2021-10-06 21:22:23,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:22:23 WrapperNode [2021-10-06 21:22:23,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-06 21:22:23,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-06 21:22:23,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-06 21:22:23,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-06 21:22:23,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:22:23" (1/1) ... [2021-10-06 21:22:23,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:22:23" (1/1) ... [2021-10-06 21:22:23,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-06 21:22:23,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-06 21:22:23,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-06 21:22:23,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-06 21:22:23,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:22:23" (1/1) ... [2021-10-06 21:22:23,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:22:23" (1/1) ... [2021-10-06 21:22:23,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:22:23" (1/1) ... [2021-10-06 21:22:23,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:22:23" (1/1) ... [2021-10-06 21:22:23,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:22:23" (1/1) ... [2021-10-06 21:22:23,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:22:23" (1/1) ... [2021-10-06 21:22:23,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:22:23" (1/1) ... [2021-10-06 21:22:23,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-06 21:22:23,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-06 21:22:23,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-06 21:22:23,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-06 21:22:23,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:22:23" (1/1) ... [2021-10-06 21:22:23,903 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 21:22:23,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-06 21:22:23,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-06 21:22:23,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-06 21:22:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-06 21:22:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-06 21:22:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-06 21:22:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-06 21:22:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-06 21:22:24,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-06 21:22:24,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-06 21:22:24,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-06 21:22:24,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-06 21:22:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-06 21:22:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-06 21:22:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-06 21:22:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-06 21:22:24,065 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-06 21:22:24,637 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-06 21:22:24,638 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-06 21:22:24,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 09:22:24 BoogieIcfgContainer [2021-10-06 21:22:24,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-06 21:22:24,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-06 21:22:24,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-06 21:22:24,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-06 21:22:24,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 09:22:23" (1/3) ... [2021-10-06 21:22:24,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76fa8247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 09:22:24, skipping insertion in model container [2021-10-06 21:22:24,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:22:23" (2/3) ... [2021-10-06 21:22:24,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76fa8247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 09:22:24, skipping insertion in model container [2021-10-06 21:22:24,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 09:22:24" (3/3) ... [2021-10-06 21:22:24,651 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-2.wvr.c [2021-10-06 21:22:24,658 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-06 21:22:24,658 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-10-06 21:22:24,658 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-06 21:22:24,694 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,695 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,695 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,695 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,696 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,696 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,696 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,697 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,697 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,697 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,697 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,698 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,698 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,698 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,699 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,699 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,699 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,699 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,700 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,700 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,700 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,700 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,701 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,701 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,701 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,702 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,702 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,702 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,703 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,703 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,703 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,704 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,704 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,704 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,705 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,705 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,705 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,705 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,706 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,706 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,706 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,707 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,707 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,707 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,708 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,708 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,708 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,708 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,712 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,713 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,713 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,713 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,714 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,714 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,717 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,717 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,717 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,718 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,718 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,718 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:22:24,725 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-06 21:22:24,779 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-06 21:22:24,787 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-06 21:22:24,787 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-10-06 21:22:24,806 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-06 21:22:24,818 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 106 transitions, 228 flow [2021-10-06 21:22:24,823 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 106 transitions, 228 flow [2021-10-06 21:22:24,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 106 transitions, 228 flow [2021-10-06 21:22:24,887 INFO L129 PetriNetUnfolder]: 4/104 cut-off events. [2021-10-06 21:22:24,887 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-06 21:22:24,892 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 104 events. 4/104 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2021-10-06 21:22:24,896 INFO L116 LiptonReduction]: Number of co-enabled transitions 988 [2021-10-06 21:22:34,220 INFO L131 LiptonReduction]: Checked pairs total: 2786 [2021-10-06 21:22:34,220 INFO L133 LiptonReduction]: Total number of compositions: 107 [2021-10-06 21:22:34,232 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 34 transitions, 84 flow [2021-10-06 21:22:34,259 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 227 states, 217 states have (on average 2.640552995391705) internal successors, (573), 226 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:34,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 217 states have (on average 2.640552995391705) internal successors, (573), 226 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:34,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-06 21:22:34,269 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:22:34,270 INFO L512 BasicCegarLoop]: trace histogram [1] [2021-10-06 21:22:34,270 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:22:34,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:22:34,277 INFO L82 PathProgramCache]: Analyzing trace with hash 404, now seen corresponding path program 1 times [2021-10-06 21:22:34,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:22:34,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686521941] [2021-10-06 21:22:34,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:22:34,293 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:22:34,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:22:34,297 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-06 21:22:34,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-06 21:22:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:22:34,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-06 21:22:34,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:22:34,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:22:34,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:22:34,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:22:34,366 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:22:34,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686521941] [2021-10-06 21:22:34,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686521941] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:22:34,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:22:34,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2021-10-06 21:22:34,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017447879] [2021-10-06 21:22:34,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-06 21:22:34,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:22:34,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-06 21:22:34,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-06 21:22:34,411 INFO L87 Difference]: Start difference. First operand has 227 states, 217 states have (on average 2.640552995391705) internal successors, (573), 226 states have internal predecessors, (573), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:34,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:22:34,455 INFO L93 Difference]: Finished difference Result 224 states and 510 transitions. [2021-10-06 21:22:34,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-06 21:22:34,457 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2021-10-06 21:22:34,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:22:34,473 INFO L225 Difference]: With dead ends: 224 [2021-10-06 21:22:34,473 INFO L226 Difference]: Without dead ends: 224 [2021-10-06 21:22:34,475 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-06 21:22:34,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-10-06 21:22:34,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2021-10-06 21:22:34,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 217 states have (on average 2.3502304147465436) internal successors, (510), 223 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:34,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 510 transitions. [2021-10-06 21:22:34,533 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 510 transitions. Word has length 1 [2021-10-06 21:22:34,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:22:34,534 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 510 transitions. [2021-10-06 21:22:34,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:34,534 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 510 transitions. [2021-10-06 21:22:34,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-06 21:22:34,535 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:22:34,535 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-06 21:22:34,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-06 21:22:34,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 21:22:34,747 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:22:34,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:22:34,748 INFO L82 PathProgramCache]: Analyzing trace with hash 397794, now seen corresponding path program 1 times [2021-10-06 21:22:34,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:22:34,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696903695] [2021-10-06 21:22:34,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:22:34,765 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:22:34,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:22:34,766 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-06 21:22:34,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-06 21:22:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:22:34,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-06 21:22:34,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:22:35,046 INFO L354 Elim1Store]: treesize reduction 76, result has 30.3 percent of original size [2021-10-06 21:22:35,048 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 3 case distinctions, treesize of input 15 treesize of output 38 [2021-10-06 21:22:35,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:22:35,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:22:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:22:35,212 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:22:35,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696903695] [2021-10-06 21:22:35,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696903695] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:22:35,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:22:35,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-06 21:22:35,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777475146] [2021-10-06 21:22:35,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 21:22:35,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:22:35,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 21:22:35,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:22:35,216 INFO L87 Difference]: Start difference. First operand 224 states and 510 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:35,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:22:35,263 INFO L93 Difference]: Finished difference Result 211 states and 486 transitions. [2021-10-06 21:22:35,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 21:22:35,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-06 21:22:35,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:22:35,266 INFO L225 Difference]: With dead ends: 211 [2021-10-06 21:22:35,266 INFO L226 Difference]: Without dead ends: 211 [2021-10-06 21:22:35,267 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:22:35,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-10-06 21:22:35,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2021-10-06 21:22:35,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 2.3592233009708736) internal successors, (486), 210 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:35,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 486 transitions. [2021-10-06 21:22:35,299 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 486 transitions. Word has length 3 [2021-10-06 21:22:35,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:22:35,299 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 486 transitions. [2021-10-06 21:22:35,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:35,300 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 486 transitions. [2021-10-06 21:22:35,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-06 21:22:35,300 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:22:35,301 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-06 21:22:35,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-06 21:22:35,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 21:22:35,502 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:22:35,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:22:35,504 INFO L82 PathProgramCache]: Analyzing trace with hash 397795, now seen corresponding path program 1 times [2021-10-06 21:22:35,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:22:35,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174469904] [2021-10-06 21:22:35,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:22:35,507 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:22:35,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:22:35,508 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-06 21:22:35,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-06 21:22:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:22:35,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-06 21:22:35,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:22:35,675 INFO L354 Elim1Store]: treesize reduction 142, result has 23.2 percent of original size [2021-10-06 21:22:35,675 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 4 case distinctions, treesize of input 18 treesize of output 48 [2021-10-06 21:22:36,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:22:36,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:22:36,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:22:36,042 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:22:36,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174469904] [2021-10-06 21:22:36,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174469904] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:22:36,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:22:36,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-06 21:22:36,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20377209] [2021-10-06 21:22:36,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-06 21:22:36,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:22:36,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-06 21:22:36,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 21:22:36,049 INFO L87 Difference]: Start difference. First operand 211 states and 486 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:36,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:22:36,072 INFO L93 Difference]: Finished difference Result 198 states and 462 transitions. [2021-10-06 21:22:36,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 21:22:36,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-06 21:22:36,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:22:36,075 INFO L225 Difference]: With dead ends: 198 [2021-10-06 21:22:36,075 INFO L226 Difference]: Without dead ends: 198 [2021-10-06 21:22:36,076 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 21:22:36,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-10-06 21:22:36,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-10-06 21:22:36,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 195 states have (on average 2.3692307692307693) internal successors, (462), 197 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:36,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 462 transitions. [2021-10-06 21:22:36,090 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 462 transitions. Word has length 3 [2021-10-06 21:22:36,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:22:36,090 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 462 transitions. [2021-10-06 21:22:36,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:36,090 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 462 transitions. [2021-10-06 21:22:36,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-06 21:22:36,091 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:22:36,091 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-06 21:22:36,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-06 21:22:36,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 21:22:36,306 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:22:36,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:22:36,307 INFO L82 PathProgramCache]: Analyzing trace with hash 382290597, now seen corresponding path program 1 times [2021-10-06 21:22:36,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:22:36,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190333637] [2021-10-06 21:22:36,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:22:36,309 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:22:36,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:22:36,310 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-06 21:22:36,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-06 21:22:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:22:36,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-06 21:22:36,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:22:36,477 INFO L354 Elim1Store]: treesize reduction 142, result has 23.2 percent of original size [2021-10-06 21:22:36,477 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 4 case distinctions, treesize of input 18 treesize of output 48 [2021-10-06 21:22:36,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:22:36,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:22:36,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:22:36,794 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:22:36,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [190333637] [2021-10-06 21:22:36,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [190333637] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:22:36,795 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:22:36,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-06 21:22:36,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859486539] [2021-10-06 21:22:36,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-06 21:22:36,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:22:36,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-06 21:22:36,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 21:22:36,797 INFO L87 Difference]: Start difference. First operand 198 states and 462 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:36,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:22:36,818 INFO L93 Difference]: Finished difference Result 156 states and 349 transitions. [2021-10-06 21:22:36,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 21:22:36,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-06 21:22:36,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:22:36,821 INFO L225 Difference]: With dead ends: 156 [2021-10-06 21:22:36,822 INFO L226 Difference]: Without dead ends: 156 [2021-10-06 21:22:36,822 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 21:22:36,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-10-06 21:22:36,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2021-10-06 21:22:36,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 154 states have (on average 2.2662337662337664) internal successors, (349), 155 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:36,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 349 transitions. [2021-10-06 21:22:36,832 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 349 transitions. Word has length 5 [2021-10-06 21:22:36,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:22:36,833 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 349 transitions. [2021-10-06 21:22:36,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:36,833 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 349 transitions. [2021-10-06 21:22:36,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-06 21:22:36,834 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:22:36,834 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-06 21:22:36,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-06 21:22:37,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 21:22:37,047 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:22:37,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:22:37,048 INFO L82 PathProgramCache]: Analyzing trace with hash 382290599, now seen corresponding path program 1 times [2021-10-06 21:22:37,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:22:37,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246989770] [2021-10-06 21:22:37,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:22:37,049 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:22:37,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:22:37,051 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) [2021-10-06 21:22:37,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-06 21:22:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:22:37,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-06 21:22:37,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:22:37,200 INFO L354 Elim1Store]: treesize reduction 82, result has 24.8 percent of original size [2021-10-06 21:22:37,201 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 3 case distinctions, treesize of input 34 treesize of output 50 [2021-10-06 21:22:37,212 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 89 treesize of output 87 [2021-10-06 21:22:37,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:22:37,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:22:37,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:22:37,564 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:22:37,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246989770] [2021-10-06 21:22:37,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246989770] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:22:37,565 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:22:37,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-06 21:22:37,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925481800] [2021-10-06 21:22:37,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 21:22:37,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:22:37,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 21:22:37,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:22:37,567 INFO L87 Difference]: Start difference. First operand 156 states and 349 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:37,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:22:37,582 INFO L93 Difference]: Finished difference Result 114 states and 236 transitions. [2021-10-06 21:22:37,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 21:22:37,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-06 21:22:37,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:22:37,584 INFO L225 Difference]: With dead ends: 114 [2021-10-06 21:22:37,584 INFO L226 Difference]: Without dead ends: 114 [2021-10-06 21:22:37,584 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:22:37,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-10-06 21:22:37,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-10-06 21:22:37,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 2.088495575221239) internal successors, (236), 113 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:37,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 236 transitions. [2021-10-06 21:22:37,588 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 236 transitions. Word has length 5 [2021-10-06 21:22:37,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:22:37,589 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 236 transitions. [2021-10-06 21:22:37,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:37,589 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 236 transitions. [2021-10-06 21:22:37,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-06 21:22:37,591 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:22:37,591 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:22:37,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-06 21:22:37,801 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 [2021-10-06 21:22:37,802 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:22:37,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:22:37,804 INFO L82 PathProgramCache]: Analyzing trace with hash -589113243, now seen corresponding path program 1 times [2021-10-06 21:22:37,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:22:37,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2076535680] [2021-10-06 21:22:37,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:22:37,806 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:22:37,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:22:37,807 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) [2021-10-06 21:22:37,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-06 21:22:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:22:37,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-06 21:22:37,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:22:38,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:22:38,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:22:38,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:22:38,124 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:22:38,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2076535680] [2021-10-06 21:22:38,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2076535680] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:22:38,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:22:38,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-06 21:22:38,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418440969] [2021-10-06 21:22:38,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-06 21:22:38,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:22:38,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-06 21:22:38,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-06 21:22:38,140 INFO L87 Difference]: Start difference. First operand 114 states and 236 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:38,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:22:38,171 INFO L93 Difference]: Finished difference Result 145 states and 293 transitions. [2021-10-06 21:22:38,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-06 21:22:38,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 20 [2021-10-06 21:22:38,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:22:38,173 INFO L225 Difference]: With dead ends: 145 [2021-10-06 21:22:38,173 INFO L226 Difference]: Without dead ends: 66 [2021-10-06 21:22:38,175 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.1ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-06 21:22:38,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-10-06 21:22:38,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-10-06 21:22:38,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.876923076923077) internal successors, (122), 65 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:38,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 122 transitions. [2021-10-06 21:22:38,180 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 122 transitions. Word has length 20 [2021-10-06 21:22:38,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:22:38,180 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 122 transitions. [2021-10-06 21:22:38,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:38,180 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 122 transitions. [2021-10-06 21:22:38,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-06 21:22:38,183 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:22:38,183 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:22:38,199 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-06 21:22:38,397 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 [2021-10-06 21:22:38,398 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:22:38,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:22:38,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1696902669, now seen corresponding path program 2 times [2021-10-06 21:22:38,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:22:38,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041509276] [2021-10-06 21:22:38,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-06 21:22:38,400 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:22:38,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:22:38,401 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) [2021-10-06 21:22:38,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-06 21:22:38,486 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-06 21:22:38,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-06 21:22:38,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-06 21:22:38,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:22:38,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:22:38,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:22:38,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:22:38,748 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:22:38,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041509276] [2021-10-06 21:22:38,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041509276] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:22:38,749 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:22:38,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-06 21:22:38,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805948336] [2021-10-06 21:22:38,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-06 21:22:38,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:22:38,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-06 21:22:38,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-06 21:22:38,751 INFO L87 Difference]: Start difference. First operand 66 states and 122 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:38,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:22:38,940 INFO L93 Difference]: Finished difference Result 74 states and 134 transitions. [2021-10-06 21:22:38,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-06 21:22:38,941 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 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 20 [2021-10-06 21:22:38,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:22:38,942 INFO L225 Difference]: With dead ends: 74 [2021-10-06 21:22:38,942 INFO L226 Difference]: Without dead ends: 62 [2021-10-06 21:22:38,942 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 147.3ms TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-10-06 21:22:38,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-10-06 21:22:38,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-10-06 21:22:38,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.8360655737704918) internal successors, (112), 61 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:38,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 112 transitions. [2021-10-06 21:22:38,945 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 112 transitions. Word has length 20 [2021-10-06 21:22:38,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:22:38,946 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 112 transitions. [2021-10-06 21:22:38,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:38,946 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 112 transitions. [2021-10-06 21:22:38,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-06 21:22:38,947 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:22:38,947 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:22:38,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-06 21:22:39,158 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 [2021-10-06 21:22:39,159 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:22:39,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:22:39,160 INFO L82 PathProgramCache]: Analyzing trace with hash -289016461, now seen corresponding path program 3 times [2021-10-06 21:22:39,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:22:39,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084560144] [2021-10-06 21:22:39,162 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-06 21:22:39,162 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:22:39,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:22:39,163 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) [2021-10-06 21:22:39,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-06 21:22:39,244 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-06 21:22:39,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-06 21:22:39,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-06 21:22:39,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:22:39,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:22:39,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:22:39,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:22:39,493 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:22:39,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084560144] [2021-10-06 21:22:39,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084560144] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:22:39,493 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:22:39,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-06 21:22:39,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557908790] [2021-10-06 21:22:39,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-06 21:22:39,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:22:39,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-06 21:22:39,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-06 21:22:39,495 INFO L87 Difference]: Start difference. First operand 62 states and 112 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:39,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:22:39,592 INFO L93 Difference]: Finished difference Result 30 states and 52 transitions. [2021-10-06 21:22:39,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-06 21:22:39,593 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 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 20 [2021-10-06 21:22:39,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:22:39,593 INFO L225 Difference]: With dead ends: 30 [2021-10-06 21:22:39,594 INFO L226 Difference]: Without dead ends: 0 [2021-10-06 21:22:39,594 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 128.3ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-06 21:22:39,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-06 21:22:39,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-06 21:22:39,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:39,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-06 21:22:39,595 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2021-10-06 21:22:39,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:22:39,595 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-06 21:22:39,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:22:39,595 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-06 21:22:39,595 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-06 21:22:39,598 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-06 21:22:39,598 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-06 21:22:39,599 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-06 21:22:39,599 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-06 21:22:39,599 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-06 21:22:39,599 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-06 21:22:39,599 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-06 21:22:39,600 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-06 21:22:39,600 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-06 21:22:39,600 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-06 21:22:39,600 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-06 21:22:39,600 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-06 21:22:39,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-06 21:22:39,808 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 [2021-10-06 21:22:39,816 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-06 21:22:39,816 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-06 21:22:39,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 09:22:39 BasicIcfg [2021-10-06 21:22:39,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-06 21:22:39,820 INFO L168 Benchmark]: Toolchain (without parser) took 16299.20 ms. Allocated memory was 166.7 MB in the beginning and 200.3 MB in the end (delta: 33.6 MB). Free memory was 145.7 MB in the beginning and 70.5 MB in the end (delta: 75.2 MB). Peak memory consumption was 108.3 MB. Max. memory is 8.0 GB. [2021-10-06 21:22:39,820 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 166.7 MB. Free memory was 136.8 MB in the beginning and 136.7 MB in the end (delta: 81.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-06 21:22:39,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.82 ms. Allocated memory is still 166.7 MB. Free memory was 145.5 MB in the beginning and 135.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-06 21:22:39,822 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.35 ms. Allocated memory is still 166.7 MB. Free memory was 134.8 MB in the beginning and 133.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-06 21:22:39,822 INFO L168 Benchmark]: Boogie Preprocessor took 30.27 ms. Allocated memory is still 166.7 MB. Free memory was 133.2 MB in the beginning and 131.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-06 21:22:39,823 INFO L168 Benchmark]: RCFGBuilder took 759.13 ms. Allocated memory is still 166.7 MB. Free memory was 131.7 MB in the beginning and 135.3 MB in the end (delta: -3.6 MB). Peak memory consumption was 2.4 MB. Max. memory is 8.0 GB. [2021-10-06 21:22:39,824 INFO L168 Benchmark]: TraceAbstraction took 15175.94 ms. Allocated memory was 166.7 MB in the beginning and 200.3 MB in the end (delta: 33.6 MB). Free memory was 134.9 MB in the beginning and 70.5 MB in the end (delta: 64.3 MB). Peak memory consumption was 98.5 MB. Max. memory is 8.0 GB. [2021-10-06 21:22:39,827 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 166.7 MB. Free memory was 136.8 MB in the beginning and 136.7 MB in the end (delta: 81.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 277.82 ms. Allocated memory is still 166.7 MB. Free memory was 145.5 MB in the beginning and 135.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 44.35 ms. Allocated memory is still 166.7 MB. Free memory was 134.8 MB in the beginning and 133.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.27 ms. Allocated memory is still 166.7 MB. Free memory was 133.2 MB in the beginning and 131.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 759.13 ms. Allocated memory is still 166.7 MB. Free memory was 131.7 MB in the beginning and 135.3 MB in the end (delta: -3.6 MB). Peak memory consumption was 2.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 15175.94 ms. Allocated memory was 166.7 MB in the beginning and 200.3 MB in the end (delta: 33.6 MB). Free memory was 134.9 MB in the beginning and 70.5 MB in the end (delta: 64.3 MB). Peak memory consumption was 98.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9398.0ms, 109 PlacesBefore, 39 PlacesAfterwards, 106 TransitionsBefore, 34 TransitionsAfterwards, 988 CoEnabledTransitionPairs, 6 FixpointIterations, 62 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 107 TotalNumberOfCompositions, 2786 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1922, positive: 1812, positive conditional: 0, positive unconditional: 1812, negative: 110, negative conditional: 0, negative unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 854, positive: 823, positive conditional: 0, positive unconditional: 823, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 854, positive: 811, positive conditional: 0, positive unconditional: 811, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 209, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 191, negative conditional: 0, negative unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1922, positive: 989, positive conditional: 0, positive unconditional: 989, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 854, unknown conditional: 0, unknown unconditional: 854] , Statistics on independence cache: Total cache size (in pairs): 179, Positive cache size: 165, Positive conditional cache size: 0, Positive unconditional cache size: 165, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - 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 - PositiveResult [Line: 82]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 82]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 83]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 83]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 84]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 84]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 85]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 85]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 88]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 68]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 132 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 15038.3ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 16.1ms, AutomataDifference: 548.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9472.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 147 SDtfs, 172 SDslu, 146 SDs, 0 SdLazy, 127 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 218.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 114 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 394.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=227occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 110.8ms AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 66.3ms SsaConstructionTime, 204.1ms SatisfiabilityAnalysisTime, 2544.5ms InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 138 ConstructedInterpolants, 4 QuantifiedInterpolants, 703 SizeOfPredicates, 32 NumberOfNonLiveVariables, 377 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-06 21:22:39,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...