/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf -i ../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-08 17:11:55,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-08 17:11:55,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-08 17:11:56,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-08 17:11:56,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-08 17:11:56,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-08 17:11:56,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-08 17:11:56,140 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 17:11:56,169 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-08 17:11:56,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-08 17:11:56,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-08 17:11:56,170 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-08 17:11:56,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-08 17:11:56,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-08 17:11:56,172 INFO L138 SettingsManager]: * Use SBE=true [2021-10-08 17:11:56,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-08 17:11:56,172 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-08 17:11:56,173 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-08 17:11:56,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-08 17:11:56,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-08 17:11:56,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-08 17:11:56,174 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-08 17:11:56,174 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-08 17:11:56,174 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-08 17:11:56,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-08 17:11:56,174 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-08 17:11:56,175 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-08 17:11:56,175 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-08 17:11:56,175 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-08 17:11:56,175 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-08 17:11:56,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-08 17:11:56,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-08 17:11:56,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-08 17:11:56,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 17:11:56,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-08 17:11:56,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-08 17:11:56,177 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-08 17:11:56,177 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-08 17:11:56,177 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-08 17:11:56,178 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-08 17:11:56,178 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-08 17:11:56,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-08 17:11:56,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-08 17:11:56,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-08 17:11:56,614 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-08 17:11:56,615 INFO L275 PluginConnector]: CDTParser initialized [2021-10-08 17:11:56,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2021-10-08 17:11:56,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d95047a87/1660b11013514783ae31940c2e97f9a9/FLAG0d571b05b [2021-10-08 17:11:57,322 INFO L306 CDTParser]: Found 1 translation units. [2021-10-08 17:11:57,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2021-10-08 17:11:57,335 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d95047a87/1660b11013514783ae31940c2e97f9a9/FLAG0d571b05b [2021-10-08 17:11:57,706 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d95047a87/1660b11013514783ae31940c2e97f9a9 [2021-10-08 17:11:57,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-08 17:11:57,727 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-08 17:11:57,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-08 17:11:57,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-08 17:11:57,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-08 17:11:57,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 05:11:57" (1/1) ... [2021-10-08 17:11:57,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@259a5478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:11:57, skipping insertion in model container [2021-10-08 17:11:57,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 05:11:57" (1/1) ... [2021-10-08 17:11:57,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-08 17:11:57,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-08 17:11:57,978 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c[2513,2526] [2021-10-08 17:11:57,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 17:11:58,012 INFO L203 MainTranslator]: Completed pre-run [2021-10-08 17:11:58,070 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c[2513,2526] [2021-10-08 17:11:58,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 17:11:58,109 INFO L208 MainTranslator]: Completed translation [2021-10-08 17:11:58,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:11:58 WrapperNode [2021-10-08 17:11:58,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-08 17:11:58,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-08 17:11:58,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-08 17:11:58,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-08 17:11:58,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:11:58" (1/1) ... [2021-10-08 17:11:58,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:11:58" (1/1) ... [2021-10-08 17:11:58,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-08 17:11:58,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-08 17:11:58,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-08 17:11:58,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-08 17:11:58,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:11:58" (1/1) ... [2021-10-08 17:11:58,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:11:58" (1/1) ... [2021-10-08 17:11:58,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:11:58" (1/1) ... [2021-10-08 17:11:58,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:11:58" (1/1) ... [2021-10-08 17:11:58,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:11:58" (1/1) ... [2021-10-08 17:11:58,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:11:58" (1/1) ... [2021-10-08 17:11:58,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:11:58" (1/1) ... [2021-10-08 17:11:58,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-08 17:11:58,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-08 17:11:58,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-08 17:11:58,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-08 17:11:58,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:11:58" (1/1) ... [2021-10-08 17:11:58,312 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 17:11:58,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 17:11:58,350 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 17:11:58,373 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 17:11:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-08 17:11:58,439 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-08 17:11:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-08 17:11:58,440 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-08 17:11:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-08 17:11:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-08 17:11:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-08 17:11:58,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-08 17:11:58,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-08 17:11:58,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-08 17:11:58,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-08 17:11:58,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-08 17:11:58,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-08 17:11:58,445 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 17:11:58,973 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-08 17:11:58,974 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-08 17:11:58,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 05:11:58 BoogieIcfgContainer [2021-10-08 17:11:58,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-08 17:11:58,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-08 17:11:58,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-08 17:11:58,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-08 17:11:58,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.10 05:11:57" (1/3) ... [2021-10-08 17:11:58,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8d59f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 05:11:58, skipping insertion in model container [2021-10-08 17:11:58,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 05:11:58" (2/3) ... [2021-10-08 17:11:58,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8d59f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 05:11:58, skipping insertion in model container [2021-10-08 17:11:58,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 05:11:58" (3/3) ... [2021-10-08 17:11:58,998 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2021-10-08 17:11:59,006 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-08 17:11:59,007 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-10-08 17:11:59,007 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-08 17:11:59,075 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,075 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,076 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,076 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,076 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,076 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,077 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,077 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,077 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,077 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,078 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,078 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,078 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,079 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,079 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,079 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,079 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,080 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,080 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,080 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,080 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,081 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,081 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,081 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,081 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,081 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,082 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,082 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,082 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,082 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,082 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,083 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,083 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,083 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,087 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,087 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,088 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,088 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,088 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,091 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,091 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,091 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,092 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 17:11:59,098 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-08 17:11:59,158 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-08 17:11:59,166 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 17:11:59,166 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-10-08 17:11:59,185 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-08 17:11:59,199 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 137 transitions, 290 flow [2021-10-08 17:11:59,203 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 137 transitions, 290 flow [2021-10-08 17:11:59,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 134 places, 137 transitions, 290 flow [2021-10-08 17:11:59,319 INFO L129 PetriNetUnfolder]: 10/135 cut-off events. [2021-10-08 17:11:59,319 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-08 17:11:59,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 135 events. 10/135 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 86 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2021-10-08 17:11:59,333 INFO L116 LiptonReduction]: Number of co-enabled transitions 842 [2021-10-08 17:12:11,362 INFO L131 LiptonReduction]: Checked pairs total: 3369 [2021-10-08 17:12:11,363 INFO L133 LiptonReduction]: Total number of compositions: 147 [2021-10-08 17:12:11,373 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 33 transitions, 82 flow [2021-10-08 17:12:11,400 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 227 states, 217 states have (on average 2.511520737327189) internal successors, (545), 226 states have internal predecessors, (545), 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 17:12:11,404 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 217 states have (on average 2.511520737327189) internal successors, (545), 226 states have internal predecessors, (545), 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 17:12:11,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-08 17:12:11,414 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:12:11,414 INFO L512 BasicCegarLoop]: trace histogram [1] [2021-10-08 17:12:11,415 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-08 17:12:11,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:12:11,422 INFO L82 PathProgramCache]: Analyzing trace with hash 534, now seen corresponding path program 1 times [2021-10-08 17:12:11,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:12:11,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813304345] [2021-10-08 17:12:11,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:12:11,437 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:12:11,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:12:11,441 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 17:12:11,450 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 17:12:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:12:11,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-08 17:12:11,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:12:11,506 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 17:12:11,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:12:11,507 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 17:12:11,508 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:12:11,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813304345] [2021-10-08 17:12:11,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813304345] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:12:11,510 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:12:11,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2021-10-08 17:12:11,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514298648] [2021-10-08 17:12:11,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-08 17:12:11,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:12:11,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-08 17:12:11,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-08 17:12:11,538 INFO L87 Difference]: Start difference. First operand has 227 states, 217 states have (on average 2.511520737327189) internal successors, (545), 226 states have internal predecessors, (545), 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 17:12:11,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:12:11,567 INFO L93 Difference]: Finished difference Result 224 states and 542 transitions. [2021-10-08 17:12:11,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-08 17:12:11,568 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 17:12:11,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:12:11,584 INFO L225 Difference]: With dead ends: 224 [2021-10-08 17:12:11,584 INFO L226 Difference]: Without dead ends: 224 [2021-10-08 17:12:11,586 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 17:12:11,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-10-08 17:12:11,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2021-10-08 17:12:11,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 217 states have (on average 2.4976958525345623) internal successors, (542), 223 states have internal predecessors, (542), 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 17:12:11,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 542 transitions. [2021-10-08 17:12:11,650 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 542 transitions. Word has length 1 [2021-10-08 17:12:11,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:12:11,651 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 542 transitions. [2021-10-08 17:12:11,651 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 17:12:11,651 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 542 transitions. [2021-10-08 17:12:11,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 17:12:11,652 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:12:11,652 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 17:12:11,669 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 17:12:11,869 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 17:12:11,870 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-08 17:12:11,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:12:11,871 INFO L82 PathProgramCache]: Analyzing trace with hash 525635, now seen corresponding path program 1 times [2021-10-08 17:12:11,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:12:11,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266742003] [2021-10-08 17:12:11,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:12:11,874 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:12:11,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:12:11,876 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 17:12:11,877 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 17:12:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:12:11,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-08 17:12:11,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:12:12,168 INFO L354 Elim1Store]: treesize reduction 142, result has 23.2 percent of original size [2021-10-08 17:12:12,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 48 [2021-10-08 17:12:12,550 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 17:12:12,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:12:12,560 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 17:12:12,561 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:12:12,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [266742003] [2021-10-08 17:12:12,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [266742003] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:12:12,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:12:12,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-08 17:12:12,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643232471] [2021-10-08 17:12:12,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 17:12:12,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:12:12,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 17:12:12,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 17:12:12,583 INFO L87 Difference]: Start difference. First operand 224 states and 542 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 17:12:12,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:12:12,622 INFO L93 Difference]: Finished difference Result 211 states and 517 transitions. [2021-10-08 17:12:12,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 17:12:12,623 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 17:12:12,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:12:12,626 INFO L225 Difference]: With dead ends: 211 [2021-10-08 17:12:12,627 INFO L226 Difference]: Without dead ends: 211 [2021-10-08 17:12:12,628 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 17:12:12,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-10-08 17:12:12,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2021-10-08 17:12:12,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 2.5097087378640777) internal successors, (517), 210 states have internal predecessors, (517), 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 17:12:12,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 517 transitions. [2021-10-08 17:12:12,649 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 517 transitions. Word has length 3 [2021-10-08 17:12:12,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:12:12,650 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 517 transitions. [2021-10-08 17:12:12,650 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 17:12:12,650 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 517 transitions. [2021-10-08 17:12:12,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 17:12:12,651 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:12:12,651 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 17:12:12,667 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 17:12:12,862 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 17:12:12,863 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-08 17:12:12,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:12:12,865 INFO L82 PathProgramCache]: Analyzing trace with hash 525633, now seen corresponding path program 1 times [2021-10-08 17:12:12,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:12:12,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009673630] [2021-10-08 17:12:12,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:12:12,867 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:12:12,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:12:12,868 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 17:12:12,871 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 17:12:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:12:12,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-08 17:12:12,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:12:13,023 INFO L354 Elim1Store]: treesize reduction 76, result has 30.3 percent of original size [2021-10-08 17:12:13,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 38 [2021-10-08 17:12:13,082 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 17:12:13,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:12:13,133 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 17:12:13,134 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:12:13,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1009673630] [2021-10-08 17:12:13,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1009673630] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:12:13,135 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:12:13,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-08 17:12:13,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738263794] [2021-10-08 17:12:13,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-08 17:12:13,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:12:13,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-08 17:12:13,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 17:12:13,137 INFO L87 Difference]: Start difference. First operand 211 states and 517 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 17:12:13,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:12:13,160 INFO L93 Difference]: Finished difference Result 198 states and 492 transitions. [2021-10-08 17:12:13,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 17:12:13,161 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 17:12:13,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:12:13,164 INFO L225 Difference]: With dead ends: 198 [2021-10-08 17:12:13,164 INFO L226 Difference]: Without dead ends: 198 [2021-10-08 17:12:13,165 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-08 17:12:13,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-10-08 17:12:13,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-10-08 17:12:13,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 195 states have (on average 2.523076923076923) internal successors, (492), 197 states have internal predecessors, (492), 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 17:12:13,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 492 transitions. [2021-10-08 17:12:13,180 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 492 transitions. Word has length 3 [2021-10-08 17:12:13,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:12:13,180 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 492 transitions. [2021-10-08 17:12:13,181 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 17:12:13,181 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 492 transitions. [2021-10-08 17:12:13,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-08 17:12:13,181 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:12:13,182 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-08 17:12:13,197 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 17:12:13,393 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 17:12:13,394 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-08 17:12:13,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:12:13,398 INFO L82 PathProgramCache]: Analyzing trace with hash 505145683, now seen corresponding path program 1 times [2021-10-08 17:12:13,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:12:13,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753444152] [2021-10-08 17:12:13,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:12:13,399 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:12:13,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:12:13,401 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 17:12:13,436 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 17:12:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:12:13,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-08 17:12:13,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:12:13,587 INFO L354 Elim1Store]: treesize reduction 142, result has 23.2 percent of original size [2021-10-08 17:12:13,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 48 [2021-10-08 17:12:13,854 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 17:12:13,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:12:13,868 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 17:12:13,868 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:12:13,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753444152] [2021-10-08 17:12:13,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753444152] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:12:13,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:12:13,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-08 17:12:13,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281442742] [2021-10-08 17:12:13,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 17:12:13,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:12:13,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 17:12:13,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 17:12:13,871 INFO L87 Difference]: Start difference. First operand 198 states and 492 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 17:12:13,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:12:13,891 INFO L93 Difference]: Finished difference Result 156 states and 372 transitions. [2021-10-08 17:12:13,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 17:12:13,892 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 17:12:13,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:12:13,894 INFO L225 Difference]: With dead ends: 156 [2021-10-08 17:12:13,894 INFO L226 Difference]: Without dead ends: 156 [2021-10-08 17:12:13,894 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 17:12:13,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-10-08 17:12:13,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2021-10-08 17:12:13,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 154 states have (on average 2.4155844155844157) internal successors, (372), 155 states have internal predecessors, (372), 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 17:12:13,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 372 transitions. [2021-10-08 17:12:13,904 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 372 transitions. Word has length 5 [2021-10-08 17:12:13,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:12:13,905 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 372 transitions. [2021-10-08 17:12:13,905 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 17:12:13,905 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 372 transitions. [2021-10-08 17:12:13,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-08 17:12:13,906 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:12:13,906 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-08 17:12:13,924 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 17:12:14,118 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 17:12:14,119 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-08 17:12:14,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:12:14,120 INFO L82 PathProgramCache]: Analyzing trace with hash 505145684, now seen corresponding path program 1 times [2021-10-08 17:12:14,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:12:14,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [755429804] [2021-10-08 17:12:14,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:12:14,122 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:12:14,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:12:14,123 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 17:12:14,128 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 17:12:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:12:14,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-08 17:12:14,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:12:14,250 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 17:12:14,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:12:14,307 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 17:12:14,307 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:12:14,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [755429804] [2021-10-08 17:12:14,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [755429804] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:12:14,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:12:14,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-08 17:12:14,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145107046] [2021-10-08 17:12:14,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 17:12:14,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:12:14,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 17:12:14,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 17:12:14,310 INFO L87 Difference]: Start difference. First operand 156 states and 372 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 17:12:14,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:12:14,327 INFO L93 Difference]: Finished difference Result 114 states and 252 transitions. [2021-10-08 17:12:14,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 17:12:14,328 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 17:12:14,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:12:14,329 INFO L225 Difference]: With dead ends: 114 [2021-10-08 17:12:14,330 INFO L226 Difference]: Without dead ends: 114 [2021-10-08 17:12:14,330 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 17:12:14,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-10-08 17:12:14,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-10-08 17:12:14,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 2.230088495575221) internal successors, (252), 113 states have internal predecessors, (252), 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 17:12:14,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 252 transitions. [2021-10-08 17:12:14,336 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 252 transitions. Word has length 5 [2021-10-08 17:12:14,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:12:14,337 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 252 transitions. [2021-10-08 17:12:14,337 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 17:12:14,337 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 252 transitions. [2021-10-08 17:12:14,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 17:12:14,339 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:12:14,339 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:12:14,359 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 17:12:14,556 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 17:12:14,557 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-08 17:12:14,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:12:14,557 INFO L82 PathProgramCache]: Analyzing trace with hash 946865800, now seen corresponding path program 1 times [2021-10-08 17:12:14,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:12:14,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268677079] [2021-10-08 17:12:14,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 17:12:14,559 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:12:14,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:12:14,560 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 17:12:14,591 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 17:12:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 17:12:14,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-08 17:12:14,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:12:14,722 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 17:12:14,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:12:14,786 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 17:12:14,786 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:12:14,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268677079] [2021-10-08 17:12:14,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268677079] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:12:14,787 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:12:14,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-08 17:12:14,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678852678] [2021-10-08 17:12:14,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-08 17:12:14,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:12:14,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-08 17:12:14,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-08 17:12:14,789 INFO L87 Difference]: Start difference. First operand 114 states and 252 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 17:12:14,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:12:14,818 INFO L93 Difference]: Finished difference Result 127 states and 270 transitions. [2021-10-08 17:12:14,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 17:12:14,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 19 [2021-10-08 17:12:14,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:12:14,819 INFO L225 Difference]: With dead ends: 127 [2021-10-08 17:12:14,819 INFO L226 Difference]: Without dead ends: 32 [2021-10-08 17:12:14,820 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.2ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-08 17:12:14,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-08 17:12:14,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-10-08 17:12:14,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 31 states have internal predecessors, (44), 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 17:12:14,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2021-10-08 17:12:14,822 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 19 [2021-10-08 17:12:14,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:12:14,822 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2021-10-08 17:12:14,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 17:12:14,823 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2021-10-08 17:12:14,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-08 17:12:14,823 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 17:12:14,824 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-08 17:12:14,838 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 17:12:15,036 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 17:12:15,037 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-08 17:12:15,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 17:12:15,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1965364392, now seen corresponding path program 2 times [2021-10-08 17:12:15,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-08 17:12:15,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485120936] [2021-10-08 17:12:15,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-08 17:12:15,039 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-08 17:12:15,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-08 17:12:15,041 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 17:12:15,052 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 17:12:15,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-08 17:12:15,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-08 17:12:15,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-08 17:12:15,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 17:12:15,204 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 17:12:15,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-08 17:12:15,268 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 17:12:15,268 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-08 17:12:15,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485120936] [2021-10-08 17:12:15,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [485120936] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-08 17:12:15,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-08 17:12:15,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-08 17:12:15,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124089482] [2021-10-08 17:12:15,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-08 17:12:15,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-08 17:12:15,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-08 17:12:15,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-08 17:12:15,280 INFO L87 Difference]: Start difference. First operand 32 states and 44 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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 17:12:15,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 17:12:15,322 INFO L93 Difference]: Finished difference Result 31 states and 43 transitions. [2021-10-08 17:12:15,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-08 17:12:15,322 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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 19 [2021-10-08 17:12:15,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 17:12:15,323 INFO L225 Difference]: With dead ends: 31 [2021-10-08 17:12:15,323 INFO L226 Difference]: Without dead ends: 0 [2021-10-08 17:12:15,323 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 17.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-08 17:12:15,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-08 17:12:15,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-08 17:12:15,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 17:12:15,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-08 17:12:15,324 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-10-08 17:12:15,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 17:12:15,325 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-08 17:12:15,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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 17:12:15,326 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-08 17:12:15,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-08 17:12:15,330 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-08 17:12:15,331 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-08 17:12:15,331 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-08 17:12:15,331 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-08 17:12:15,331 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-08 17:12:15,332 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-08 17:12:15,332 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-08 17:12:15,332 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-08 17:12:15,332 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-08 17:12:15,333 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-08 17:12:15,333 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-08 17:12:15,333 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-08 17:12:15,347 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 17:12:15,545 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 17:12:15,551 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-08 17:12:15,551 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-08 17:12:15,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 05:12:15 BasicIcfg [2021-10-08 17:12:15,553 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-08 17:12:15,554 INFO L168 Benchmark]: Toolchain (without parser) took 17836.97 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 131.8 MB in the beginning and 157.4 MB in the end (delta: -25.7 MB). Peak memory consumption was 6.4 MB. Max. memory is 8.0 GB. [2021-10-08 17:12:15,555 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 157.3 MB. Free memory is still 128.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-08 17:12:15,555 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.33 ms. Allocated memory is still 157.3 MB. Free memory was 131.4 MB in the beginning and 120.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-08 17:12:15,556 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.99 ms. Allocated memory is still 157.3 MB. Free memory was 120.7 MB in the beginning and 118.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-08 17:12:15,556 INFO L168 Benchmark]: Boogie Preprocessor took 75.02 ms. Allocated memory is still 157.3 MB. Free memory was 118.9 MB in the beginning and 117.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-08 17:12:15,557 INFO L168 Benchmark]: RCFGBuilder took 684.78 ms. Allocated memory is still 157.3 MB. Free memory was 117.5 MB in the beginning and 134.3 MB in the end (delta: -16.8 MB). Peak memory consumption was 15.1 MB. Max. memory is 8.0 GB. [2021-10-08 17:12:15,557 INFO L168 Benchmark]: TraceAbstraction took 16566.94 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 133.8 MB in the beginning and 157.4 MB in the end (delta: -23.7 MB). Peak memory consumption was 8.0 MB. Max. memory is 8.0 GB. [2021-10-08 17:12:15,560 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 157.3 MB. Free memory is still 128.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 383.33 ms. Allocated memory is still 157.3 MB. Free memory was 131.4 MB in the beginning and 120.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 97.99 ms. Allocated memory is still 157.3 MB. Free memory was 120.7 MB in the beginning and 118.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 75.02 ms. Allocated memory is still 157.3 MB. Free memory was 118.9 MB in the beginning and 117.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 684.78 ms. Allocated memory is still 157.3 MB. Free memory was 117.5 MB in the beginning and 134.3 MB in the end (delta: -16.8 MB). Peak memory consumption was 15.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16566.94 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 133.8 MB in the beginning and 157.4 MB in the end (delta: -23.7 MB). Peak memory consumption was 8.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12160.4ms, 134 PlacesBefore, 39 PlacesAfterwards, 137 TransitionsBefore, 33 TransitionsAfterwards, 842 CoEnabledTransitionPairs, 8 FixpointIterations, 90 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 17 TrivialYvCompositions, 7 ConcurrentYvCompositions, 9 ChoiceCompositions, 147 TotalNumberOfCompositions, 3369 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1979, positive: 1804, positive conditional: 0, positive unconditional: 1804, negative: 175, negative conditional: 0, negative unconditional: 175, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 614, positive: 582, positive conditional: 0, positive unconditional: 582, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 614, positive: 581, positive conditional: 0, positive unconditional: 581, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 33, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 169, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 168, negative conditional: 0, negative unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1979, positive: 1222, positive conditional: 0, positive unconditional: 1222, negative: 143, negative conditional: 0, negative unconditional: 143, unknown: 614, unknown conditional: 0, unknown unconditional: 614] , Statistics on independence cache: Total cache size (in pairs): 155, Positive cache size: 136, Positive conditional cache size: 0, Positive unconditional cache size: 136, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 87]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 87]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 88]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 88]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 89]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 89]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 90]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 90]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 93]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 68]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 154 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 16395.7ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 18.4ms, AutomataDifference: 266.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12233.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 141 SDtfs, 165 SDslu, 23 SDs, 0 SdLazy, 24 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 104.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 114.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=227occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 102.7ms AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 64.1ms SsaConstructionTime, 157.6ms SatisfiabilityAnalysisTime, 1700.4ms InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 478 SizeOfPredicates, 14 NumberOfNonLiveVariables, 329 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-08 17:12:15,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...