/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf -i ../sv-benchmarks/c/weaver/chl-time-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-08 17:03:03,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-08 17:03:03,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-08 17:03:03,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-08 17:03:03,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-08 17:03:03,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-08 17:03:03,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-08 17:03:03,583 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-08 17:03:03,634 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-08 17:03:03,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-08 17:03:03,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-08 17:03:03,635 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-08 17:03:03,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-08 17:03:03,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-08 17:03:03,640 INFO L138 SettingsManager]: * Use SBE=true [2021-10-08 17:03:03,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-08 17:03:03,641 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-08 17:03:03,641 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-08 17:03:03,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-08 17:03:03,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-08 17:03:03,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-08 17:03:03,643 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-08 17:03:03,643 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-08 17:03:03,643 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-08 17:03:03,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-08 17:03:03,644 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-08 17:03:03,644 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-08 17:03:03,644 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-08 17:03:03,645 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-08 17:03:03,645 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-08 17:03:03,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-08 17:03:03,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-08 17:03:03,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-08 17:03:03,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 17:03:03,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-08 17:03:03,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-08 17:03:03,646 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-08 17:03:03,647 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-08 17:03:03,647 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-08 17:03:03,647 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-08 17:03:03,648 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-08 17:03:04,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-08 17:03:04,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-08 17:03:04,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-08 17:03:04,082 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-08 17:03:04,082 INFO L275 PluginConnector]: CDTParser initialized [2021-10-08 17:03:04,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-time-trans.wvr.c [2021-10-08 17:03:04,173 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/352f2aa7f/053f3126bc70478daffe807981e3cf39/FLAG34fbf074f [2021-10-08 17:03:04,793 INFO L306 CDTParser]: Found 1 translation units. [2021-10-08 17:03:04,793 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-trans.wvr.c [2021-10-08 17:03:04,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/352f2aa7f/053f3126bc70478daffe807981e3cf39/FLAG34fbf074f [2021-10-08 17:03:05,162 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/352f2aa7f/053f3126bc70478daffe807981e3cf39 [2021-10-08 17:03:05,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-08 17:03:05,174 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-08 17:03:05,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-08 17:03:05,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-08 17:03:05,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-08 17:03:05,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 05:03:05" (1/1) ... [2021-10-08 17:03:05,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ca7a717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:03:05, skipping insertion in model container [2021-10-08 17:03:05,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 05:03:05" (1/1) ... [2021-10-08 17:03:05,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-08 17:03:05,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-08 17:03:05,424 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-trans.wvr.c[2832,2845] [2021-10-08 17:03:05,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 17:03:05,469 INFO L203 MainTranslator]: Completed pre-run [2021-10-08 17:03:05,522 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-trans.wvr.c[2832,2845] [2021-10-08 17:03:05,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 17:03:05,558 INFO L208 MainTranslator]: Completed translation [2021-10-08 17:03:05,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:03:05 WrapperNode [2021-10-08 17:03:05,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-08 17:03:05,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-08 17:03:05,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-08 17:03:05,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-08 17:03:05,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:03:05" (1/1) ... [2021-10-08 17:03:05,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:03:05" (1/1) ... [2021-10-08 17:03:05,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-08 17:03:05,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-08 17:03:05,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-08 17:03:05,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-08 17:03:05,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:03:05" (1/1) ... [2021-10-08 17:03:05,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:03:05" (1/1) ... [2021-10-08 17:03:05,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:03:05" (1/1) ... [2021-10-08 17:03:05,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:03:05" (1/1) ... [2021-10-08 17:03:05,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:03:05" (1/1) ... [2021-10-08 17:03:05,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:03:05" (1/1) ... [2021-10-08 17:03:05,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:03:05" (1/1) ... [2021-10-08 17:03:05,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-08 17:03:05,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-08 17:03:05,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-08 17:03:05,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-08 17:03:05,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:03:05" (1/1) ... [2021-10-08 17:03:05,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 17:03:05,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 17:03:05,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-08 17:03:05,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-08 17:03:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-08 17:03:05,853 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-08 17:03:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-08 17:03:05,853 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-08 17:03:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-08 17:03:05,853 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-08 17:03:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-08 17:03:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-08 17:03:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-08 17:03:05,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-08 17:03:05,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-08 17:03:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-08 17:03:05,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-08 17:03:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-08 17:03:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-08 17:03:05,858 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-08 17:03:07,504 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-08 17:03:07,505 INFO L299 CfgBuilder]: Removed 42 assume(true) statements. [2021-10-08 17:03:07,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 05:03:07 BoogieIcfgContainer [2021-10-08 17:03:07,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-08 17:03:07,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-08 17:03:07,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-08 17:03:07,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-08 17:03:07,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.10 05:03:05" (1/3) ... [2021-10-08 17:03:07,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f337c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 05:03:07, skipping insertion in model container [2021-10-08 17:03:07,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:03:05" (2/3) ... [2021-10-08 17:03:07,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f337c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 05:03:07, skipping insertion in model container [2021-10-08 17:03:07,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 05:03:07" (3/3) ... [2021-10-08 17:03:07,517 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-time-trans.wvr.c [2021-10-08 17:03:07,524 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-08 17:03:07,524 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-10-08 17:03:07,524 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-08 17:03:07,560 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,560 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,561 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,561 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,561 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,561 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,561 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,561 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,562 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,562 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,562 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,563 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,563 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,563 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,563 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,563 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,563 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,564 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,564 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,564 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,564 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,564 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,565 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,565 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,565 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,566 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,566 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,566 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,566 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,567 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,567 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,567 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,567 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,567 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,567 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,568 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,568 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,568 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,569 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,569 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,569 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,569 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,569 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,569 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,570 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,570 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,570 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,570 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,571 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,571 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,571 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,572 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,572 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,572 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,573 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,573 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,573 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,573 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,573 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,573 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,574 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,574 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,574 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,575 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,575 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,575 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,576 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,576 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,576 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,576 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,576 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,576 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,577 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,577 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,578 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,578 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,578 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,578 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,582 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,582 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,583 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,583 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,583 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,583 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,584 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,584 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,584 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,584 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,585 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,585 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,587 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,588 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,588 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,588 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,589 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,589 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,589 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,589 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,590 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,590 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,590 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,590 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,593 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,593 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,593 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,593 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,594 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,594 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,594 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,594 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,595 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,595 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,595 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,595 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:03:07,602 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-08 17:03:07,658 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-08 17:03:07,667 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-08 17:03:07,667 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-10-08 17:03:07,687 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-08 17:03:07,702 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 111 transitions, 246 flow [2021-10-08 17:03:07,706 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 111 transitions, 246 flow [2021-10-08 17:03:07,709 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 120 places, 111 transitions, 246 flow [2021-10-08 17:03:07,768 INFO L129 PetriNetUnfolder]: 1/108 cut-off events. [2021-10-08 17:03:07,769 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-08 17:03:07,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 1/108 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2021-10-08 17:03:07,775 INFO L116 LiptonReduction]: Number of co-enabled transitions 378 [2021-10-08 17:03:29,537 INFO L131 LiptonReduction]: Checked pairs total: 646 [2021-10-08 17:03:29,538 INFO L133 LiptonReduction]: Total number of compositions: 117 [2021-10-08 17:03:29,549 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 33 transitions, 90 flow [2021-10-08 17:03:29,565 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 87 states, 73 states have (on average 2.287671232876712) internal successors, (167), 86 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:03:29,567 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 73 states have (on average 2.287671232876712) internal successors, (167), 86 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:03:29,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-08 17:03:29,578 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:03:29,579 INFO L512 BasicCegarLoop]: trace histogram [1] [2021-10-08 17:03:29,580 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:03:29,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:03:29,586 INFO L82 PathProgramCache]: Analyzing trace with hash 727, now seen corresponding path program 1 times [2021-10-08 17:03:29,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:03:29,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387066438] [2021-10-08 17:03:29,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:03:29,599 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:03:29,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:03:29,602 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:03:29,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-08 17:03:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:03:29,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-08 17:03:29,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:03:29,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:03:29,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:03:29,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:03:29,681 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:03:29,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [387066438] [2021-10-08 17:03:29,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [387066438] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:03:29,683 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:03:29,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2021-10-08 17:03:29,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916249642] [2021-10-08 17:03:29,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-08 17:03:29,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:03:29,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-08 17:03:29,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-08 17:03:29,711 INFO L87 Difference]: Start difference. First operand has 87 states, 73 states have (on average 2.287671232876712) internal successors, (167), 86 states have internal predecessors, (167), 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) [2021-10-08 17:03:29,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:03:29,730 INFO L93 Difference]: Finished difference Result 84 states and 164 transitions. [2021-10-08 17:03:29,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-08 17:03:29,731 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 [2021-10-08 17:03:29,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:03:29,745 INFO L225 Difference]: With dead ends: 84 [2021-10-08 17:03:29,745 INFO L226 Difference]: Without dead ends: 84 [2021-10-08 17:03:29,747 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 [2021-10-08 17:03:29,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-10-08 17:03:29,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-10-08 17:03:29,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 2.2465753424657535) internal successors, (164), 83 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:03:29,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 164 transitions. [2021-10-08 17:03:29,797 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 164 transitions. Word has length 1 [2021-10-08 17:03:29,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:03:29,797 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 164 transitions. [2021-10-08 17:03:29,798 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) [2021-10-08 17:03:29,798 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 164 transitions. [2021-10-08 17:03:29,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 17:03:29,798 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:03:29,799 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 17:03:29,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-08 17:03:30,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:03:30,011 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:03:30,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:03:30,012 INFO L82 PathProgramCache]: Analyzing trace with hash 716154, now seen corresponding path program 1 times [2021-10-08 17:03:30,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:03:30,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936785422] [2021-10-08 17:03:30,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:03:30,014 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:03:30,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:03:30,016 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:03:30,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-08 17:03:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:03:30,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-08 17:03:30,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:03:30,476 INFO L354 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2021-10-08 17:03:30,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 49 [2021-10-08 17:03:30,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:03:30,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:03:30,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:03:30,673 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:03:30,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936785422] [2021-10-08 17:03:30,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1936785422] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:03:30,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:03:30,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-08 17:03:30,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695725492] [2021-10-08 17:03:30,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 17:03:30,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:03:30,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 17:03:30,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 17:03:30,678 INFO L87 Difference]: Start difference. First operand 84 states and 164 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:03:30,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:03:30,739 INFO L93 Difference]: Finished difference Result 78 states and 153 transitions. [2021-10-08 17:03:30,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 17:03:30,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-08 17:03:30,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:03:30,742 INFO L225 Difference]: With dead ends: 78 [2021-10-08 17:03:30,742 INFO L226 Difference]: Without dead ends: 78 [2021-10-08 17:03:30,743 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 17:03:30,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-10-08 17:03:30,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-10-08 17:03:30,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 69 states have (on average 2.217391304347826) internal successors, (153), 77 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:03:30,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 153 transitions. [2021-10-08 17:03:30,754 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 153 transitions. Word has length 3 [2021-10-08 17:03:30,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:03:30,755 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 153 transitions. [2021-10-08 17:03:30,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:03:30,755 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 153 transitions. [2021-10-08 17:03:30,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 17:03:30,755 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:03:30,756 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 17:03:30,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-08 17:03:30,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:03:30,970 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:03:30,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:03:30,970 INFO L82 PathProgramCache]: Analyzing trace with hash 716156, now seen corresponding path program 1 times [2021-10-08 17:03:30,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:03:30,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413995133] [2021-10-08 17:03:30,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:03:30,972 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:03:30,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:03:30,973 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:03:31,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-08 17:03:31,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:03:31,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-08 17:03:31,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:03:31,251 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-08 17:03:31,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 59 [2021-10-08 17:03:31,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:03:31,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:03:31,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:03:31,787 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:03:31,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413995133] [2021-10-08 17:03:31,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413995133] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:03:31,787 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:03:31,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-08 17:03:31,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701228030] [2021-10-08 17:03:31,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 17:03:31,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:03:31,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 17:03:31,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 17:03:31,790 INFO L87 Difference]: Start difference. First operand 78 states and 153 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) [2021-10-08 17:03:31,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:03:31,835 INFO L93 Difference]: Finished difference Result 72 states and 142 transitions. [2021-10-08 17:03:31,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 17:03:31,836 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 [2021-10-08 17:03:31,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:03:31,837 INFO L225 Difference]: With dead ends: 72 [2021-10-08 17:03:31,837 INFO L226 Difference]: Without dead ends: 72 [2021-10-08 17:03:31,838 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 17:03:31,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-08 17:03:31,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-10-08 17:03:31,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 65 states have (on average 2.1846153846153844) internal successors, (142), 71 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:03:31,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 142 transitions. [2021-10-08 17:03:31,846 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 142 transitions. Word has length 3 [2021-10-08 17:03:31,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:03:31,847 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 142 transitions. [2021-10-08 17:03:31,847 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) [2021-10-08 17:03:31,847 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 142 transitions. [2021-10-08 17:03:31,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-08 17:03:31,848 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:03:31,848 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-08 17:03:31,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-08 17:03:32,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:03:32,067 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:03:32,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:03:32,069 INFO L82 PathProgramCache]: Analyzing trace with hash 688243545, now seen corresponding path program 1 times [2021-10-08 17:03:32,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:03:32,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483724604] [2021-10-08 17:03:32,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:03:32,071 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:03:32,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:03:32,072 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:03:32,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-08 17:03:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:03:32,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-08 17:03:32,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:03:32,303 INFO L354 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2021-10-08 17:03:32,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 49 [2021-10-08 17:03:32,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:03:32,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:03:32,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:03:32,488 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:03:32,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483724604] [2021-10-08 17:03:32,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483724604] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:03:32,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:03:32,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-08 17:03:32,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363037172] [2021-10-08 17:03:32,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 17:03:32,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:03:32,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 17:03:32,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 17:03:32,491 INFO L87 Difference]: Start difference. First operand 72 states and 142 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:03:32,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:03:32,533 INFO L93 Difference]: Finished difference Result 66 states and 131 transitions. [2021-10-08 17:03:32,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 17:03:32,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-08 17:03:32,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:03:32,535 INFO L225 Difference]: With dead ends: 66 [2021-10-08 17:03:32,535 INFO L226 Difference]: Without dead ends: 66 [2021-10-08 17:03:32,536 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 17:03:32,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-10-08 17:03:32,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-10-08 17:03:32,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 61 states have (on average 2.1475409836065573) internal successors, (131), 65 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:03:32,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions. [2021-10-08 17:03:32,542 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 5 [2021-10-08 17:03:32,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:03:32,543 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions. [2021-10-08 17:03:32,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:03:32,544 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2021-10-08 17:03:32,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-08 17:03:32,544 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:03:32,544 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-08 17:03:32,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-08 17:03:32,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:03:32,760 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:03:32,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:03:32,761 INFO L82 PathProgramCache]: Analyzing trace with hash 688243546, now seen corresponding path program 1 times [2021-10-08 17:03:32,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:03:32,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481484965] [2021-10-08 17:03:32,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:03:32,764 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:03:32,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:03:32,765 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:03:32,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-08 17:03:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:03:32,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-08 17:03:32,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:03:33,006 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-08 17:03:33,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 59 [2021-10-08 17:03:33,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:03:33,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:03:33,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:03:33,513 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:03:33,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481484965] [2021-10-08 17:03:33,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481484965] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:03:33,514 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:03:33,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-08 17:03:33,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592682100] [2021-10-08 17:03:33,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 17:03:33,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:03:33,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 17:03:33,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 17:03:33,516 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:03:33,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:03:33,547 INFO L93 Difference]: Finished difference Result 60 states and 120 transitions. [2021-10-08 17:03:33,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 17:03:33,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-08 17:03:33,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:03:33,548 INFO L225 Difference]: With dead ends: 60 [2021-10-08 17:03:33,548 INFO L226 Difference]: Without dead ends: 60 [2021-10-08 17:03:33,549 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 17:03:33,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-10-08 17:03:33,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-10-08 17:03:33,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 57 states have (on average 2.1052631578947367) internal successors, (120), 59 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:03:33,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 120 transitions. [2021-10-08 17:03:33,554 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 120 transitions. Word has length 5 [2021-10-08 17:03:33,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:03:33,555 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 120 transitions. [2021-10-08 17:03:33,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:03:33,555 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 120 transitions. [2021-10-08 17:03:33,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-08 17:03:33,556 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:03:33,556 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:03:33,571 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-08 17:03:33,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:03:33,768 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:03:33,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:03:33,769 INFO L82 PathProgramCache]: Analyzing trace with hash -22899291, now seen corresponding path program 1 times [2021-10-08 17:03:33,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:03:33,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363253270] [2021-10-08 17:03:33,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:03:33,771 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:03:33,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:03:33,772 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:03:33,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-08 17:03:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:03:33,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-08 17:03:33,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:03:34,036 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-08 17:03:34,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 59 [2021-10-08 17:03:34,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:03:34,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:03:34,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:03:34,463 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:03:34,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363253270] [2021-10-08 17:03:34,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363253270] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:03:34,464 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:03:34,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-08 17:03:34,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344749617] [2021-10-08 17:03:34,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 17:03:34,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:03:34,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 17:03:34,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 17:03:34,466 INFO L87 Difference]: Start difference. First operand 60 states and 120 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:03:34,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:03:34,502 INFO L93 Difference]: Finished difference Result 52 states and 100 transitions. [2021-10-08 17:03:34,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 17:03:34,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 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 7 [2021-10-08 17:03:34,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:03:34,504 INFO L225 Difference]: With dead ends: 52 [2021-10-08 17:03:34,504 INFO L226 Difference]: Without dead ends: 52 [2021-10-08 17:03:34,504 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.2ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-08 17:03:34,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-08 17:03:34,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-08 17:03:34,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 50 states have (on average 2.0) internal successors, (100), 51 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:03:34,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 100 transitions. [2021-10-08 17:03:34,509 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 100 transitions. Word has length 7 [2021-10-08 17:03:34,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:03:34,509 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 100 transitions. [2021-10-08 17:03:34,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:03:34,509 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 100 transitions. [2021-10-08 17:03:34,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-08 17:03:34,510 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:03:34,510 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:03:34,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-08 17:03:34,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:03:34,720 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:03:34,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:03:34,721 INFO L82 PathProgramCache]: Analyzing trace with hash -22899290, now seen corresponding path program 1 times [2021-10-08 17:03:34,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:03:34,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625863629] [2021-10-08 17:03:34,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:03:34,723 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:03:34,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:03:34,729 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:03:34,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-08 17:03:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:03:34,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 17:03:34,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:03:34,961 INFO L354 Elim1Store]: treesize reduction 147, result has 20.5 percent of original size [2021-10-08 17:03:34,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 63 [2021-10-08 17:03:34,973 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 85 treesize of output 83 [2021-10-08 17:03:35,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:03:35,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:03:35,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:03:35,684 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:03:35,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625863629] [2021-10-08 17:03:35,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625863629] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:03:35,685 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:03:35,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-08 17:03:35,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771951088] [2021-10-08 17:03:35,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 17:03:35,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:03:35,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 17:03:35,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 17:03:35,687 INFO L87 Difference]: Start difference. First operand 52 states and 100 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:03:35,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:03:35,714 INFO L93 Difference]: Finished difference Result 44 states and 80 transitions. [2021-10-08 17:03:35,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 17:03:35,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-08 17:03:35,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:03:35,716 INFO L225 Difference]: With dead ends: 44 [2021-10-08 17:03:35,716 INFO L226 Difference]: Without dead ends: 44 [2021-10-08 17:03:35,717 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 45.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 17:03:35,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-08 17:03:35,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-10-08 17:03:35,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:03:35,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 80 transitions. [2021-10-08 17:03:35,720 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 80 transitions. Word has length 7 [2021-10-08 17:03:35,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:03:35,721 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 80 transitions. [2021-10-08 17:03:35,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:03:35,721 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 80 transitions. [2021-10-08 17:03:35,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 17:03:35,722 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:03:35,722 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:03:35,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-08 17:03:35,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:03:35,944 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:03:35,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:03:35,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1857632636, now seen corresponding path program 1 times [2021-10-08 17:03:35,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:03:35,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194030772] [2021-10-08 17:03:35,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:03:35,946 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:03:35,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:03:35,947 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:03:35,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-08 17:03:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:03:37,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-08 17:03:37,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:06:54,654 WARN L207 SmtUtils]: Spent 5.66 s on a formula simplification. DAG size of input: 143 DAG size of output: 101 [2021-10-08 17:08:52,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:08:52,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:09:24,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:09:24,697 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:09:24,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194030772] [2021-10-08 17:09:24,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [194030772] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:09:24,698 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:09:24,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-08 17:09:24,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853893124] [2021-10-08 17:09:24,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-08 17:09:24,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:09:24,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-08 17:09:24,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=40, Unknown=2, NotChecked=0, Total=56 [2021-10-08 17:09:24,700 INFO L87 Difference]: Start difference. First operand 44 states and 80 transitions. Second operand has 8 states, 7 states have (on average 4.0) 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) [2021-10-08 17:09:55,325 WARN L207 SmtUtils]: Spent 30.04 s on a formula simplification. DAG size of input: 115 DAG size of output: 93 [2021-10-08 17:11:47,515 WARN L207 SmtUtils]: Spent 1.86 m on a formula simplification. DAG size of input: 178 DAG size of output: 160 [2021-10-08 17:11:47,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:11:47,659 INFO L93 Difference]: Finished difference Result 67 states and 106 transitions. [2021-10-08 17:11:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 17:11:47,663 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) 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 16 [2021-10-08 17:11:47,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:11:47,664 INFO L225 Difference]: With dead ends: 67 [2021-10-08 17:11:47,664 INFO L226 Difference]: Without dead ends: 52 [2021-10-08 17:11:47,664 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 156637.0ms TimeCoverageRelationStatistics Valid=29, Invalid=59, Unknown=2, NotChecked=0, Total=90 [2021-10-08 17:11:47,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-08 17:11:47,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2021-10-08 17:11:47,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 43 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:11:47,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 74 transitions. [2021-10-08 17:11:47,668 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 74 transitions. Word has length 16 [2021-10-08 17:11:47,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:11:47,671 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 74 transitions. [2021-10-08 17:11:47,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) 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) [2021-10-08 17:11:47,672 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 74 transitions. [2021-10-08 17:11:47,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 17:11:47,673 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:11:47,673 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:11:47,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-08 17:11:47,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:11:47,884 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:11:47,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:11:47,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1565791124, now seen corresponding path program 2 times [2021-10-08 17:11:47,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:11:47,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329808913] [2021-10-08 17:11:47,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:11:47,887 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:11:47,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:11:47,888 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:11:47,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-08 17:11:48,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:11:48,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:11:48,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-08 17:11:48,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:13:28,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:13:28,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:14:01,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 17:14:01,736 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:14:01,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1329808913] [2021-10-08 17:14:01,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1329808913] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:14:01,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:14:01,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2021-10-08 17:14:01,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186050550] [2021-10-08 17:14:01,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-08 17:14:01,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:14:01,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-08 17:14:01,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=51, Unknown=4, NotChecked=0, Total=72 [2021-10-08 17:14:01,739 INFO L87 Difference]: Start difference. First operand 44 states and 74 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 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) [2021-10-08 17:14:24,152 WARN L207 SmtUtils]: Spent 21.62 s on a formula simplification that was a NOOP. DAG size: 113 [2021-10-08 17:15:01,891 WARN L207 SmtUtils]: Spent 35.41 s on a formula simplification that was a NOOP. DAG size: 190 [2021-10-08 17:15:02,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:15:02,258 INFO L93 Difference]: Finished difference Result 63 states and 94 transitions. [2021-10-08 17:15:02,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-08 17:15:02,264 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 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 16 [2021-10-08 17:15:02,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:15:02,265 INFO L225 Difference]: With dead ends: 63 [2021-10-08 17:15:02,265 INFO L226 Difference]: Without dead ends: 44 [2021-10-08 17:15:02,265 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 70308.1ms TimeCoverageRelationStatistics Valid=33, Invalid=73, Unknown=4, NotChecked=0, Total=110 [2021-10-08 17:15:02,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-08 17:15:02,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2021-10-08 17:15:02,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:15:02,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2021-10-08 17:15:02,276 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 57 transitions. Word has length 16 [2021-10-08 17:15:02,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:15:02,277 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 57 transitions. [2021-10-08 17:15:02,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 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) [2021-10-08 17:15:02,279 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 57 transitions. [2021-10-08 17:15:02,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-08 17:15:02,280 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:15:02,281 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:15:02,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-08 17:15:02,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:15:02,495 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-08 17:15:02,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:15:02,495 INFO L82 PathProgramCache]: Analyzing trace with hash -202425546, now seen corresponding path program 3 times [2021-10-08 17:15:02,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:15:02,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066106949] [2021-10-08 17:15:02,497 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-08 17:15:02,497 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:15:02,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:15:02,521 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-08 17:15:02,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-08 17:15:04,126 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-08 17:15:04,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:15:04,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-08 17:15:04,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:16:53,561 WARN L207 SmtUtils]: Spent 15.29 s on a formula simplification. DAG size of input: 131 DAG size of output: 124 Received shutdown request... [2021-10-08 17:17:22,823 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-08 17:17:22,828 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-08 17:17:23,072 WARN L223 SmtUtils]: Removed 1 from assertion stack [2021-10-08 17:17:23,074 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-08 17:17:23,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-08 17:17:23,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-08 17:17:23,276 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 398ms.. [2021-10-08 17:17:23,278 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-08 17:17:23,279 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-08 17:17:23,279 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-08 17:17:23,279 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-08 17:17:23,279 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-08 17:17:23,279 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-08 17:17:23,280 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-08 17:17:23,280 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-08 17:17:23,280 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-08 17:17:23,280 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-08 17:17:23,280 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-08 17:17:23,280 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-08 17:17:23,280 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-08 17:17:23,281 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-08 17:17:23,281 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-08 17:17:23,281 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-08 17:17:23,286 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-08 17:17:23,286 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-08 17:17:23,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 05:17:23 BasicIcfg [2021-10-08 17:17:23,288 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-08 17:17:23,290 INFO L168 Benchmark]: Toolchain (without parser) took 858123.25 ms. Allocated memory was 156.2 MB in the beginning and 191.9 MB in the end (delta: 35.7 MB). Free memory was 130.4 MB in the beginning and 106.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 116.6 MB. Max. memory is 8.0 GB. [2021-10-08 17:17:23,290 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 156.2 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-08 17:17:23,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.15 ms. Allocated memory is still 156.2 MB. Free memory was 130.1 MB in the beginning and 118.9 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-08 17:17:23,291 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.80 ms. Allocated memory is still 156.2 MB. Free memory was 118.9 MB in the beginning and 116.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-08 17:17:23,292 INFO L168 Benchmark]: Boogie Preprocessor took 82.70 ms. Allocated memory is still 156.2 MB. Free memory was 116.6 MB in the beginning and 114.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-08 17:17:23,292 INFO L168 Benchmark]: RCFGBuilder took 1772.62 ms. Allocated memory is still 156.2 MB. Free memory was 114.9 MB in the beginning and 93.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.3 MB. Max. memory is 8.0 GB. [2021-10-08 17:17:23,293 INFO L168 Benchmark]: TraceAbstraction took 855779.04 ms. Allocated memory was 156.2 MB in the beginning and 191.9 MB in the end (delta: 35.7 MB). Free memory was 92.9 MB in the beginning and 106.3 MB in the end (delta: -13.4 MB). Peak memory consumption was 78.6 MB. Max. memory is 8.0 GB. [2021-10-08 17:17:23,295 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 156.2 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 384.15 ms. Allocated memory is still 156.2 MB. Free memory was 130.1 MB in the beginning and 118.9 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 89.80 ms. Allocated memory is still 156.2 MB. Free memory was 118.9 MB in the beginning and 116.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 82.70 ms. Allocated memory is still 156.2 MB. Free memory was 116.6 MB in the beginning and 114.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1772.62 ms. Allocated memory is still 156.2 MB. Free memory was 114.9 MB in the beginning and 93.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 855779.04 ms. Allocated memory was 156.2 MB in the beginning and 191.9 MB in the end (delta: 35.7 MB). Free memory was 92.9 MB in the beginning and 106.3 MB in the end (delta: -13.4 MB). Peak memory consumption was 78.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21831.7ms, 120 PlacesBefore, 43 PlacesAfterwards, 111 TransitionsBefore, 33 TransitionsAfterwards, 378 CoEnabledTransitionPairs, 6 FixpointIterations, 80 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 117 TotalNumberOfCompositions, 646 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 646, positive: 646, positive conditional: 0, positive unconditional: 646, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 275, positive: 275, positive conditional: 0, positive unconditional: 275, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 275, positive: 275, positive conditional: 0, positive unconditional: 275, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 646, positive: 371, positive conditional: 0, positive unconditional: 371, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 275, unknown conditional: 0, unknown unconditional: 275] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 48, Positive conditional cache size: 0, Positive unconditional cache size: 48, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed Cancelled while BasicCegarLoop was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 398ms.. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 398ms.. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 398ms.. - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 398ms.. - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 398ms.. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 398ms.. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 398ms.. - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 398ms.. - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 398ms.. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 398ms.. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 398ms.. - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 398ms.. - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 398ms.. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed Cancelled while BasicCegarLoop was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 398ms.. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 398ms.. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 398ms.. - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 17 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 398ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 126 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 855628.5ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 19.7ms, AutomataDifference: 203814.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 21897.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 158 SDtfs, 192 SDslu, 172 SDs, 0 SdLazy, 113 SolverSat, 5 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3681.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 227148.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 84.3ms AutomataMinimizationTime, 9 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 135.9ms SsaConstructionTime, 2023.1ms SatisfiabilityAnalysisTime, 484405.3ms InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 108 ConstructedInterpolants, 27 QuantifiedInterpolants, 7309 SizeOfPredicates, 96 NumberOfNonLiveVariables, 429 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown