/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf -i ../sv-benchmarks/c/weaver/chl/exp-term-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-06 20:59:52,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-06 20:59:52,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-06 20:59:52,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-06 20:59:52,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-06 20:59:52,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-06 20:59:52,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-06 20:59:52,145 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-06 20:59:52,201 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-06 20:59:52,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-06 20:59:52,202 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-06 20:59:52,202 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-06 20:59:52,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-06 20:59:52,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-06 20:59:52,203 INFO L138 SettingsManager]: * Use SBE=true [2021-10-06 20:59:52,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-06 20:59:52,205 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-06 20:59:52,205 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-06 20:59:52,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-06 20:59:52,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-06 20:59:52,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-06 20:59:52,206 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-06 20:59:52,206 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-06 20:59:52,206 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-06 20:59:52,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-06 20:59:52,207 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-06 20:59:52,208 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-06 20:59:52,208 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-06 20:59:52,208 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-06 20:59:52,208 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-06 20:59:52,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-06 20:59:52,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-06 20:59:52,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-06 20:59:52,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 20:59:52,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-06 20:59:52,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-06 20:59:52,210 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-06 20:59:52,210 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-06 20:59:52,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-06 20:59:52,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-06 20:59:52,211 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-06 20:59:52,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-06 20:59:52,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-06 20:59:52,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-06 20:59:52,619 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-06 20:59:52,620 INFO L275 PluginConnector]: CDTParser initialized [2021-10-06 20:59:52,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl/exp-term-symm.wvr.c [2021-10-06 20:59:52,693 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/abdb11d5b/cce0c607fd964a37aaa3056faef7c5cc/FLAG21e9bb544 [2021-10-06 20:59:53,326 INFO L306 CDTParser]: Found 1 translation units. [2021-10-06 20:59:53,327 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/exp-term-symm.wvr.c [2021-10-06 20:59:53,335 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/abdb11d5b/cce0c607fd964a37aaa3056faef7c5cc/FLAG21e9bb544 [2021-10-06 20:59:53,687 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/abdb11d5b/cce0c607fd964a37aaa3056faef7c5cc [2021-10-06 20:59:53,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-06 20:59:53,700 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-06 20:59:53,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-06 20:59:53,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-06 20:59:53,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-06 20:59:53,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 08:59:53" (1/1) ... [2021-10-06 20:59:53,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@215de40c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:59:53, skipping insertion in model container [2021-10-06 20:59:53,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 08:59:53" (1/1) ... [2021-10-06 20:59:53,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-06 20:59:53,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-06 20:59:53,981 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/exp-term-symm.wvr.c[2541,2554] [2021-10-06 20:59:53,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 20:59:54,005 INFO L203 MainTranslator]: Completed pre-run [2021-10-06 20:59:54,029 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/exp-term-symm.wvr.c[2541,2554] [2021-10-06 20:59:54,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 20:59:54,049 INFO L208 MainTranslator]: Completed translation [2021-10-06 20:59:54,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:59:54 WrapperNode [2021-10-06 20:59:54,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-06 20:59:54,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-06 20:59:54,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-06 20:59:54,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-06 20:59:54,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:59:54" (1/1) ... [2021-10-06 20:59:54,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:59:54" (1/1) ... [2021-10-06 20:59:54,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-06 20:59:54,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-06 20:59:54,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-06 20:59:54,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-06 20:59:54,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:59:54" (1/1) ... [2021-10-06 20:59:54,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:59:54" (1/1) ... [2021-10-06 20:59:54,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:59:54" (1/1) ... [2021-10-06 20:59:54,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:59:54" (1/1) ... [2021-10-06 20:59:54,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:59:54" (1/1) ... [2021-10-06 20:59:54,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:59:54" (1/1) ... [2021-10-06 20:59:54,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:59:54" (1/1) ... [2021-10-06 20:59:54,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-06 20:59:54,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-06 20:59:54,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-06 20:59:54,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-06 20:59:54,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:59:54" (1/1) ... [2021-10-06 20:59:54,162 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 20:59:54,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-06 20:59:54,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-06 20:59:54,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-06 20:59:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-06 20:59:54,310 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-06 20:59:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-06 20:59:54,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-06 20:59:54,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-06 20:59:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-06 20:59:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-06 20:59:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-06 20:59:54,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-06 20:59:54,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-06 20:59:54,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-06 20:59:54,315 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-06 20:59:54,775 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-06 20:59:54,776 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-06 20:59:54,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 08:59:54 BoogieIcfgContainer [2021-10-06 20:59:54,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-06 20:59:54,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-06 20:59:54,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-06 20:59:54,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-06 20:59:54,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 08:59:53" (1/3) ... [2021-10-06 20:59:54,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f291e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 08:59:54, skipping insertion in model container [2021-10-06 20:59:54,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 08:59:54" (2/3) ... [2021-10-06 20:59:54,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f291e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 08:59:54, skipping insertion in model container [2021-10-06 20:59:54,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 08:59:54" (3/3) ... [2021-10-06 20:59:54,799 INFO L111 eAbstractionObserver]: Analyzing ICFG exp-term-symm.wvr.c [2021-10-06 20:59:54,806 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-06 20:59:54,807 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-10-06 20:59:54,807 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-06 20:59:54,875 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,875 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,875 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,876 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,876 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,876 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,877 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,877 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,877 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,877 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,877 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,878 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,878 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,878 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,878 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,879 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,879 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,879 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,879 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,879 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,880 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,880 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,880 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,880 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,881 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,881 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,882 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,882 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,882 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,882 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,883 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,883 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,883 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,883 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,884 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,884 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,884 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,884 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,884 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,885 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,885 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,885 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,885 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,885 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,886 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,886 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,886 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,886 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,890 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,890 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,891 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,891 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,891 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,897 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,897 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,897 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,898 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,898 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 20:59:54,904 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-06 20:59:54,958 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-06 20:59:54,965 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-06 20:59:54,966 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-10-06 20:59:54,982 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-06 20:59:54,996 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 115 transitions, 246 flow [2021-10-06 20:59:54,999 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 115 transitions, 246 flow [2021-10-06 20:59:55,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 115 transitions, 246 flow [2021-10-06 20:59:55,058 INFO L129 PetriNetUnfolder]: 9/113 cut-off events. [2021-10-06 20:59:55,059 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-06 20:59:55,064 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 113 events. 9/113 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 145 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2021-10-06 20:59:55,068 INFO L116 LiptonReduction]: Number of co-enabled transitions 1360 [2021-10-06 21:00:04,110 INFO L131 LiptonReduction]: Checked pairs total: 1425 [2021-10-06 21:00:04,110 INFO L133 LiptonReduction]: Total number of compositions: 131 [2021-10-06 21:00:04,120 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 23 transitions, 62 flow [2021-10-06 21:00:04,133 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 39 states, 29 states have (on average 2.0344827586206895) internal successors, (59), 38 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:04,135 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 29 states have (on average 2.0344827586206895) internal successors, (59), 38 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:04,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-06 21:00:04,141 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:04,141 INFO L512 BasicCegarLoop]: trace histogram [1] [2021-10-06 21:00:04,142 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:00:04,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:04,148 INFO L82 PathProgramCache]: Analyzing trace with hash 464, now seen corresponding path program 1 times [2021-10-06 21:00:04,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:04,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207439400] [2021-10-06 21:00:04,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:04,163 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:04,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:04,170 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-06 21:00:04,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-06 21:00:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:04,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-06 21:00:04,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:04,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:04,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:04,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:04,240 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:04,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207439400] [2021-10-06 21:00:04,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207439400] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:04,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:04,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2021-10-06 21:00:04,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903088200] [2021-10-06 21:00:04,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-06 21:00:04,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:04,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-06 21:00:04,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-06 21:00:04,267 INFO L87 Difference]: Start difference. First operand has 39 states, 29 states have (on average 2.0344827586206895) internal successors, (59), 38 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:04,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:04,281 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2021-10-06 21:00:04,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-06 21:00:04,282 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2021-10-06 21:00:04,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:04,291 INFO L225 Difference]: With dead ends: 36 [2021-10-06 21:00:04,292 INFO L226 Difference]: Without dead ends: 36 [2021-10-06 21:00:04,293 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-06 21:00:04,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-06 21:00:04,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-10-06 21:00:04,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 29 states have (on average 1.9310344827586208) internal successors, (56), 35 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:04,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2021-10-06 21:00:04,326 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 1 [2021-10-06 21:00:04,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:04,327 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2021-10-06 21:00:04,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:04,327 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2021-10-06 21:00:04,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-06 21:00:04,328 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:04,328 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-06 21:00:04,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-06 21:00:04,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 21:00:04,539 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:00:04,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:04,540 INFO L82 PathProgramCache]: Analyzing trace with hash 454678, now seen corresponding path program 1 times [2021-10-06 21:00:04,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:04,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280103281] [2021-10-06 21:00:04,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:04,542 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:04,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:04,543 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-06 21:00:04,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-06 21:00:04,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:04,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-06 21:00:04,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:04,875 INFO L354 Elim1Store]: treesize reduction 142, result has 23.2 percent of original size [2021-10-06 21:00:04,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 48 [2021-10-06 21:00:05,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:05,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:05,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:05,218 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:05,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280103281] [2021-10-06 21:00:05,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280103281] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:05,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:05,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-06 21:00:05,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075529237] [2021-10-06 21:00:05,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-06 21:00:05,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:05,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-06 21:00:05,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 21:00:05,223 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:05,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:05,251 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2021-10-06 21:00:05,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 21:00:05,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-06 21:00:05,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:05,253 INFO L225 Difference]: With dead ends: 32 [2021-10-06 21:00:05,254 INFO L226 Difference]: Without dead ends: 32 [2021-10-06 21:00:05,254 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 21:00:05,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-06 21:00:05,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-10-06 21:00:05,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 31 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:05,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 50 transitions. [2021-10-06 21:00:05,260 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 50 transitions. Word has length 3 [2021-10-06 21:00:05,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:05,261 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 50 transitions. [2021-10-06 21:00:05,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:05,261 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 50 transitions. [2021-10-06 21:00:05,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-06 21:00:05,262 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:05,262 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-06 21:00:05,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:05,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 21:00:05,476 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:00:05,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:05,478 INFO L82 PathProgramCache]: Analyzing trace with hash 454679, now seen corresponding path program 1 times [2021-10-06 21:00:05,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:05,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054978473] [2021-10-06 21:00:05,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:05,480 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:05,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:05,481 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-06 21:00:05,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-06 21:00:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:05,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-06 21:00:05,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:05,613 INFO L354 Elim1Store]: treesize reduction 76, result has 30.3 percent of original size [2021-10-06 21:00:05,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 38 [2021-10-06 21:00:05,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:05,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:05,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:05,730 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:05,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054978473] [2021-10-06 21:00:05,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054978473] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:05,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:05,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-06 21:00:05,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194873752] [2021-10-06 21:00:05,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 21:00:05,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:05,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 21:00:05,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:00:05,733 INFO L87 Difference]: Start difference. First operand 32 states and 50 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:05,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:05,755 INFO L93 Difference]: Finished difference Result 28 states and 44 transitions. [2021-10-06 21:00:05,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 21:00:05,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-06 21:00:05,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:05,757 INFO L225 Difference]: With dead ends: 28 [2021-10-06 21:00:05,757 INFO L226 Difference]: Without dead ends: 28 [2021-10-06 21:00:05,757 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:00:05,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-06 21:00:05,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-06 21:00:05,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 1.76) internal successors, (44), 27 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) [2021-10-06 21:00:05,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 44 transitions. [2021-10-06 21:00:05,762 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 44 transitions. Word has length 3 [2021-10-06 21:00:05,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:05,763 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 44 transitions. [2021-10-06 21:00:05,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:05,763 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2021-10-06 21:00:05,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-06 21:00:05,764 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:05,764 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-06 21:00:05,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:05,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 21:00:05,966 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:00:05,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:05,966 INFO L82 PathProgramCache]: Analyzing trace with hash 436954247, now seen corresponding path program 1 times [2021-10-06 21:00:05,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:05,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230744470] [2021-10-06 21:00:05,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:05,968 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:05,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:05,975 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-06 21:00:06,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-06 21:00:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:06,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-06 21:00:06,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:06,211 INFO L354 Elim1Store]: treesize reduction 82, result has 24.8 percent of original size [2021-10-06 21:00:06,212 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 39 treesize of output 55 [2021-10-06 21:00:06,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 194 [2021-10-06 21:00:06,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:06,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:06,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:06,542 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:06,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230744470] [2021-10-06 21:00:06,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230744470] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:06,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:06,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-06 21:00:06,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541464579] [2021-10-06 21:00:06,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 21:00:06,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:06,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 21:00:06,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:00:06,545 INFO L87 Difference]: Start difference. First operand 28 states and 44 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:06,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:06,560 INFO L93 Difference]: Finished difference Result 24 states and 36 transitions. [2021-10-06 21:00:06,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 21:00:06,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-06 21:00:06,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:06,562 INFO L225 Difference]: With dead ends: 24 [2021-10-06 21:00:06,562 INFO L226 Difference]: Without dead ends: 24 [2021-10-06 21:00:06,563 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:00:06,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-10-06 21:00:06,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-10-06 21:00:06,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 23 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) [2021-10-06 21:00:06,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 36 transitions. [2021-10-06 21:00:06,567 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 36 transitions. Word has length 5 [2021-10-06 21:00:06,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:06,568 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 36 transitions. [2021-10-06 21:00:06,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:06,568 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 36 transitions. [2021-10-06 21:00:06,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-06 21:00:06,569 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:06,569 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-06 21:00:06,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:06,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 21:00:06,779 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:00:06,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:06,780 INFO L82 PathProgramCache]: Analyzing trace with hash 436954248, now seen corresponding path program 1 times [2021-10-06 21:00:06,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:06,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741569259] [2021-10-06 21:00:06,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:06,782 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:06,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:06,783 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-06 21:00:06,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-06 21:00:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:00:06,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-06 21:00:06,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:00:06,937 INFO L354 Elim1Store]: treesize reduction 142, result has 23.2 percent of original size [2021-10-06 21:00:06,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 48 [2021-10-06 21:00:07,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:07,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:00:07,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-06 21:00:07,198 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:00:07,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [741569259] [2021-10-06 21:00:07,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [741569259] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:00:07,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:00:07,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-06 21:00:07,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736034763] [2021-10-06 21:00:07,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-06 21:00:07,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:00:07,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-06 21:00:07,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 21:00:07,200 INFO L87 Difference]: Start difference. First operand 24 states and 36 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:07,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:00:07,212 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2021-10-06 21:00:07,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 21:00:07,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-06 21:00:07,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:00:07,213 INFO L225 Difference]: With dead ends: 20 [2021-10-06 21:00:07,213 INFO L226 Difference]: Without dead ends: 20 [2021-10-06 21:00:07,214 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 21:00:07,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-06 21:00:07,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-06 21:00:07,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:07,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2021-10-06 21:00:07,217 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 28 transitions. Word has length 5 [2021-10-06 21:00:07,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:00:07,217 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 28 transitions. [2021-10-06 21:00:07,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:00:07,218 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2021-10-06 21:00:07,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-06 21:00:07,218 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:00:07,219 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:00:07,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:07,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 21:00:07,431 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:00:07,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:00:07,433 INFO L82 PathProgramCache]: Analyzing trace with hash -826779728, now seen corresponding path program 1 times [2021-10-06 21:00:07,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:00:07,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2126640776] [2021-10-06 21:00:07,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:00:07,434 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:00:07,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:00:07,435 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-06 21:00:07,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-06 21:00:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-06 21:00:07,538 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-06 21:00:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-06 21:00:07,655 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-06 21:00:07,655 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-06 21:00:07,656 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-06 21:00:07,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-06 21:00:07,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-06 21:00:07,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-06 21:00:07,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-06 21:00:07,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-06 21:00:07,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-06 21:00:07,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-06 21:00:07,665 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-06 21:00:07,665 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-06 21:00:07,666 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-06 21:00:07,666 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-06 21:00:07,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-06 21:00:07,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 21:00:07,883 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-06 21:00:07,883 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-06 21:00:07,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 09:00:07 BasicIcfg [2021-10-06 21:00:07,930 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-06 21:00:07,931 INFO L168 Benchmark]: Toolchain (without parser) took 14235.95 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 111.6 MB in the beginning and 105.4 MB in the end (delta: 6.2 MB). Peak memory consumption was 37.8 MB. Max. memory is 8.0 GB. [2021-10-06 21:00:07,932 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 128.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-06 21:00:07,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.26 ms. Allocated memory is still 151.0 MB. Free memory was 111.2 MB in the beginning and 100.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-06 21:00:07,933 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.18 ms. Allocated memory is still 151.0 MB. Free memory was 100.5 MB in the beginning and 133.5 MB in the end (delta: -33.0 MB). Peak memory consumption was 4.9 MB. Max. memory is 8.0 GB. [2021-10-06 21:00:07,934 INFO L168 Benchmark]: Boogie Preprocessor took 28.60 ms. Allocated memory is still 151.0 MB. Free memory was 133.5 MB in the beginning and 131.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-06 21:00:07,935 INFO L168 Benchmark]: RCFGBuilder took 626.20 ms. Allocated memory is still 151.0 MB. Free memory was 131.9 MB in the beginning and 121.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-10-06 21:00:07,935 INFO L168 Benchmark]: TraceAbstraction took 13145.61 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 121.2 MB in the beginning and 105.4 MB in the end (delta: 15.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 8.0 GB. [2021-10-06 21:00:07,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 128.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 346.26 ms. Allocated memory is still 151.0 MB. Free memory was 111.2 MB in the beginning and 100.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 71.18 ms. Allocated memory is still 151.0 MB. Free memory was 100.5 MB in the beginning and 133.5 MB in the end (delta: -33.0 MB). Peak memory consumption was 4.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.60 ms. Allocated memory is still 151.0 MB. Free memory was 133.5 MB in the beginning and 131.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 626.20 ms. Allocated memory is still 151.0 MB. Free memory was 131.9 MB in the beginning and 121.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 13145.61 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 121.2 MB in the beginning and 105.4 MB in the end (delta: 15.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9110.9ms, 113 PlacesBefore, 30 PlacesAfterwards, 115 TransitionsBefore, 23 TransitionsAfterwards, 1360 CoEnabledTransitionPairs, 6 FixpointIterations, 62 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 15 ConcurrentYvCompositions, 9 ChoiceCompositions, 131 TotalNumberOfCompositions, 1425 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1425, positive: 1425, positive conditional: 0, positive unconditional: 1425, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 964, positive: 964, positive conditional: 0, positive unconditional: 964, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 964, positive: 964, positive conditional: 0, positive unconditional: 964, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1425, positive: 461, positive conditional: 0, positive unconditional: 461, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 964, unknown conditional: 0, unknown unconditional: 964] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 66]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 66. Possible FailurePath: [L38] 0 int sort_label_0, sort_label_2, result_4, result_5; [L39] 0 _Bool sort_label_is_null_1, sort_label_is_null_3; [L50] 0 pthread_t t1, t2; [L52] 0 sort_label_0 = __VERIFIER_nondet_int() [L53] 0 sort_label_2 = __VERIFIER_nondet_int() [L54] 0 sort_label_is_null_1 = __VERIFIER_nondet_bool() [L55] 0 sort_label_is_null_3 = __VERIFIER_nondet_bool() [L58] FCALL, FORK 0 pthread_create(&t1, NULL, thread1, NULL) VAL [result_4=0, result_5=0] [L59] FCALL, FORK 0 pthread_create(&t2, NULL, thread2, NULL) VAL [result_4=0, result_5=0] [L46] EXPR 2 !!sort_label_is_null_3 == !!sort_label_is_null_1 && (sort_label_is_null_3 || sort_label_is_null_1 || sort_label_2 == sort_label_0) ? 0 : (sort_label_is_null_3 ? -1 : (sort_label_is_null_1 ? 1 : sort_label_2 - sort_label_0)) [L46] EXPR 2 sort_label_is_null_3 ? -1 : (sort_label_is_null_1 ? 1 : sort_label_2 - sort_label_0) [L46] EXPR 2 sort_label_is_null_1 ? 1 : sort_label_2 - sort_label_0 [L46] EXPR 2 sort_label_is_null_3 ? -1 : (sort_label_is_null_1 ? 1 : sort_label_2 - sort_label_0) [L46] EXPR 2 !!sort_label_is_null_3 == !!sort_label_is_null_1 && (sort_label_is_null_3 || sort_label_is_null_1 || sort_label_2 == sort_label_0) ? 0 : (sort_label_is_null_3 ? -1 : (sort_label_is_null_1 ? 1 : sort_label_2 - sort_label_0)) [L46] 2 result_5 = !!sort_label_is_null_3 == !!sort_label_is_null_1 && (sort_label_is_null_3 || sort_label_is_null_1 || sort_label_2 == sort_label_0) ? 0 : (sort_label_is_null_3 ? -1 : (sort_label_is_null_1 ? 1 : sort_label_2 - sort_label_0)) [L42] EXPR 1 !!sort_label_is_null_1 == !!sort_label_is_null_3 && (sort_label_is_null_1 || sort_label_is_null_3 || sort_label_0 == sort_label_2) ? 0 : (sort_label_is_null_1 ? -1 : (sort_label_is_null_3 ? 1 : sort_label_0 - sort_label_2)) [L42] EXPR 1 sort_label_is_null_1 ? -1 : (sort_label_is_null_3 ? 1 : sort_label_0 - sort_label_2) [L42] EXPR 1 sort_label_is_null_3 ? 1 : sort_label_0 - sort_label_2 [L42] EXPR 1 sort_label_is_null_1 ? -1 : (sort_label_is_null_3 ? 1 : sort_label_0 - sort_label_2) [L42] EXPR 1 !!sort_label_is_null_1 == !!sort_label_is_null_3 && (sort_label_is_null_1 || sort_label_is_null_3 || sort_label_0 == sort_label_2) ? 0 : (sort_label_is_null_1 ? -1 : (sort_label_is_null_3 ? 1 : sort_label_0 - sort_label_2)) [L42] 1 result_4 = !!sort_label_is_null_1 == !!sort_label_is_null_3 && (sort_label_is_null_1 || sort_label_is_null_3 || sort_label_0 == sort_label_2) ? 0 : (sort_label_is_null_1 ? -1 : (sort_label_is_null_3 ? 1 : sort_label_0 - sort_label_2)) [L60] 0 \read(t1) VAL [result_4=-2147483648, result_5=-2147483648, sort_label_0=-2147483647, sort_label_2=1, sort_label_is_null_1=0, sort_label_is_null_3=0] [L60] FCALL, JOIN 1 pthread_join(t1, 0) VAL [result_4=-2147483648, result_5=-2147483648, sort_label_0=-2147483647, sort_label_2=1, sort_label_is_null_1=0, sort_label_is_null_3=0] [L61] 0 \read(t2) VAL [result_4=-2147483648, result_5=-2147483648, sort_label_0=-2147483647, sort_label_2=1, sort_label_is_null_1=0, sort_label_is_null_3=0] [L61] FCALL, JOIN 2 pthread_join(t2, 0) VAL [result_4=-2147483648, result_5=-2147483648, sort_label_0=-2147483647, sort_label_2=1, sort_label_is_null_1=0, sort_label_is_null_3=0] [L35] COND FALSE 0 !(!cond) [L35] COND FALSE 0 !(!cond) [L35] COND FALSE 0 !(!cond) [L66] 0 reach_error() VAL [result_4=-2147483648, result_5=-2147483648, sort_label_0=-2147483647, sort_label_2=1, sort_label_is_null_1=0, sort_label_is_null_3=0] - UnprovableResult [Line: 58]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 139 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 12925.2ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 9.8ms, AutomataDifference: 134.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9167.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 51 SDtfs, 58 SDslu, 0 SDs, 0 SdLazy, 17 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 52.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 91.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 36.7ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 60.4ms SsaConstructionTime, 172.4ms SatisfiabilityAnalysisTime, 1667.9ms InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 24 ConstructedInterpolants, 4 QuantifiedInterpolants, 272 SizeOfPredicates, 12 NumberOfNonLiveVariables, 145 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-06 21:00:07,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...