/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 [2021-10-06 21:17:23,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-06 21:17:23,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-06 21:17:23,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-06 21:17:23,378 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-06 21:17:23,427 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-06 21:17:23,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-06 21:17:23,428 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-06 21:17:23,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-06 21:17:23,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-06 21:17:23,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-06 21:17:23,432 INFO L138 SettingsManager]: * Use SBE=true [2021-10-06 21:17:23,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-06 21:17:23,433 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-06 21:17:23,433 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-06 21:17:23,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-06 21:17:23,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-06 21:17:23,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-06 21:17:23,435 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-06 21:17:23,435 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-06 21:17:23,435 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-06 21:17:23,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-06 21:17:23,435 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-06 21:17:23,436 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-06 21:17:23,436 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-06 21:17:23,436 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-06 21:17:23,436 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-06 21:17:23,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-06 21:17:23,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-06 21:17:23,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-06 21:17:23,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 21:17:23,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-06 21:17:23,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-06 21:17:23,438 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-06 21:17:23,438 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-06 21:17:23,438 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-06 21:17:23,438 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-06 21:17:23,439 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-06 21:17:23,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-06 21:17:23,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-06 21:17:23,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-06 21:17:23,858 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-06 21:17:23,858 INFO L275 PluginConnector]: CDTParser initialized [2021-10-06 21:17:23,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel/bluetooth.wvr.c [2021-10-06 21:17:23,941 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c7d3c879b/569a78086a3d40408b667b258c8c3134/FLAG5335e2f76 [2021-10-06 21:17:24,485 INFO L306 CDTParser]: Found 1 translation units. [2021-10-06 21:17:24,485 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel/bluetooth.wvr.c [2021-10-06 21:17:24,493 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c7d3c879b/569a78086a3d40408b667b258c8c3134/FLAG5335e2f76 [2021-10-06 21:17:24,851 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c7d3c879b/569a78086a3d40408b667b258c8c3134 [2021-10-06 21:17:24,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-06 21:17:24,861 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-06 21:17:24,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-06 21:17:24,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-06 21:17:24,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-06 21:17:24,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 09:17:24" (1/1) ... [2021-10-06 21:17:24,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b9c4b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:17:24, skipping insertion in model container [2021-10-06 21:17:24,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 09:17:24" (1/1) ... [2021-10-06 21:17:24,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-06 21:17:24,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-06 21:17:25,075 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[2494,2507] [2021-10-06 21:17:25,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 21:17:25,093 INFO L203 MainTranslator]: Completed pre-run [2021-10-06 21:17:25,118 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[2494,2507] [2021-10-06 21:17:25,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-06 21:17:25,140 INFO L208 MainTranslator]: Completed translation [2021-10-06 21:17:25,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:17:25 WrapperNode [2021-10-06 21:17:25,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-06 21:17:25,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-06 21:17:25,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-06 21:17:25,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-06 21:17:25,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:17:25" (1/1) ... [2021-10-06 21:17:25,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:17:25" (1/1) ... [2021-10-06 21:17:25,185 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-06 21:17:25,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-06 21:17:25,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-06 21:17:25,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-06 21:17:25,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:17:25" (1/1) ... [2021-10-06 21:17:25,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:17:25" (1/1) ... [2021-10-06 21:17:25,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:17:25" (1/1) ... [2021-10-06 21:17:25,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:17:25" (1/1) ... [2021-10-06 21:17:25,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:17:25" (1/1) ... [2021-10-06 21:17:25,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:17:25" (1/1) ... [2021-10-06 21:17:25,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:17:25" (1/1) ... [2021-10-06 21:17:25,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-06 21:17:25,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-06 21:17:25,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-06 21:17:25,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-06 21:17:25,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:17:25" (1/1) ... [2021-10-06 21:17:25,226 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-06 21:17:25,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-06 21:17:25,255 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-06 21:17:25,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-06 21:17:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-06 21:17:25,319 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-06 21:17:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-06 21:17:25,319 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-06 21:17:25,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-06 21:17:25,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-06 21:17:25,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-06 21:17:25,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-06 21:17:25,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-06 21:17:25,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-06 21:17:25,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-06 21:17:25,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-06 21:17:25,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-06 21:17:25,323 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-06 21:17:25,964 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-06 21:17:25,964 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-06 21:17:25,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 09:17:25 BoogieIcfgContainer [2021-10-06 21:17:25,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-06 21:17:25,995 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-06 21:17:25,995 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-06 21:17:25,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-06 21:17:25,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 09:17:24" (1/3) ... [2021-10-06 21:17:25,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd45a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 09:17:25, skipping insertion in model container [2021-10-06 21:17:26,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 09:17:25" (2/3) ... [2021-10-06 21:17:26,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd45a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 09:17:26, skipping insertion in model container [2021-10-06 21:17:26,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 09:17:25" (3/3) ... [2021-10-06 21:17:26,002 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth.wvr.c [2021-10-06 21:17:26,008 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-06 21:17:26,008 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-10-06 21:17:26,009 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-06 21:17:26,042 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,043 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,043 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,043 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,044 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,044 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,044 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,044 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,045 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,045 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,045 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,045 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,046 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,046 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,046 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,047 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,047 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,047 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,047 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,048 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,048 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,048 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,048 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,048 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,049 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,049 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,049 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,049 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,049 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,050 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,050 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,050 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,050 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,051 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,054 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,055 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,055 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,055 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,055 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,058 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,058 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,058 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,059 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-06 21:17:26,064 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-06 21:17:26,117 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-06 21:17:26,124 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-06 21:17:26,125 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-10-06 21:17:26,143 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-06 21:17:26,156 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 134 transitions, 284 flow [2021-10-06 21:17:26,159 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 134 transitions, 284 flow [2021-10-06 21:17:26,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 131 places, 134 transitions, 284 flow [2021-10-06 21:17:26,251 INFO L129 PetriNetUnfolder]: 10/132 cut-off events. [2021-10-06 21:17:26,251 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-06 21:17:26,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 132 events. 10/132 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2021-10-06 21:17:26,263 INFO L116 LiptonReduction]: Number of co-enabled transitions 842 [2021-10-06 21:17:37,045 INFO L131 LiptonReduction]: Checked pairs total: 3775 [2021-10-06 21:17:37,046 INFO L133 LiptonReduction]: Total number of compositions: 147 [2021-10-06 21:17:37,056 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 34 transitions, 84 flow [2021-10-06 21:17:37,082 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 227 states, 217 states have (on average 2.640552995391705) internal successors, (573), 226 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:17:37,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 217 states have (on average 2.640552995391705) internal successors, (573), 226 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:17:37,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-06 21:17:37,091 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:17:37,092 INFO L512 BasicCegarLoop]: trace histogram [1] [2021-10-06 21:17:37,092 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:17:37,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:17:37,098 INFO L82 PathProgramCache]: Analyzing trace with hash 529, now seen corresponding path program 1 times [2021-10-06 21:17:37,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:17:37,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432125582] [2021-10-06 21:17:37,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:17:37,112 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:17:37,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:17:37,113 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 21:17:37,115 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 21:17:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:17:37,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-06 21:17:37,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:17:37,169 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 21:17:37,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:17:37,170 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 21:17:37,171 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:17:37,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432125582] [2021-10-06 21:17:37,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432125582] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:17:37,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:17:37,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2021-10-06 21:17:37,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108387566] [2021-10-06 21:17:37,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-06 21:17:37,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:17:37,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-06 21:17:37,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-06 21:17:37,199 INFO L87 Difference]: Start difference. First operand has 227 states, 217 states have (on average 2.640552995391705) internal successors, (573), 226 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:17:37,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:17:37,226 INFO L93 Difference]: Finished difference Result 224 states and 570 transitions. [2021-10-06 21:17:37,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-06 21:17:37,228 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 21:17:37,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:17:37,242 INFO L225 Difference]: With dead ends: 224 [2021-10-06 21:17:37,243 INFO L226 Difference]: Without dead ends: 224 [2021-10-06 21:17:37,244 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 21:17:37,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-10-06 21:17:37,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2021-10-06 21:17:37,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 217 states have (on average 2.6267281105990783) internal successors, (570), 223 states have internal predecessors, (570), 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 21:17:37,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 570 transitions. [2021-10-06 21:17:37,306 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 570 transitions. Word has length 1 [2021-10-06 21:17:37,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:17:37,306 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 570 transitions. [2021-10-06 21:17:37,306 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 21:17:37,307 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 570 transitions. [2021-10-06 21:17:37,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-06 21:17:37,307 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:17:37,307 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-06 21:17:37,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-06 21:17:37,525 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 21:17:37,527 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 21:17:37,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:17:37,529 INFO L82 PathProgramCache]: Analyzing trace with hash 518724, now seen corresponding path program 1 times [2021-10-06 21:17:37,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:17:37,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1717406297] [2021-10-06 21:17:37,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:17:37,531 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:17:37,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:17:37,532 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 21:17:37,556 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 21:17:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:17:37,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-06 21:17:37,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:17:37,691 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-06 21:17:37,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 14 [2021-10-06 21:17:37,744 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 21:17:37,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:17:37,760 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 21:17:37,760 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:17:37,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1717406297] [2021-10-06 21:17:37,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1717406297] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:17:37,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:17:37,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-06 21:17:37,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243568946] [2021-10-06 21:17:37,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-06 21:17:37,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:17:37,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-06 21:17:37,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 21:17:37,770 INFO L87 Difference]: Start difference. First operand 224 states and 570 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 21:17:37,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:17:37,856 INFO L93 Difference]: Finished difference Result 211 states and 544 transitions. [2021-10-06 21:17:37,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 21:17:37,857 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 21:17:37,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:17:37,860 INFO L225 Difference]: With dead ends: 211 [2021-10-06 21:17:37,861 INFO L226 Difference]: Without dead ends: 211 [2021-10-06 21:17:37,862 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 21:17:37,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-10-06 21:17:37,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2021-10-06 21:17:37,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 2.6407766990291264) internal successors, (544), 210 states have internal predecessors, (544), 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 21:17:37,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 544 transitions. [2021-10-06 21:17:37,904 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 544 transitions. Word has length 3 [2021-10-06 21:17:37,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:17:37,909 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 544 transitions. [2021-10-06 21:17:37,909 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 21:17:37,909 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 544 transitions. [2021-10-06 21:17:37,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-06 21:17:37,910 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:17:37,910 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-06 21:17:37,924 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 21:17:38,111 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 21:17:38,112 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 21:17:38,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:17:38,113 INFO L82 PathProgramCache]: Analyzing trace with hash 518725, now seen corresponding path program 1 times [2021-10-06 21:17:38,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:17:38,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765177775] [2021-10-06 21:17:38,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:17:38,115 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:17:38,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:17:38,116 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 21:17:38,123 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 21:17:38,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:17:38,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-06 21:17:38,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:17:38,261 INFO L354 Elim1Store]: treesize reduction 76, result has 30.3 percent of original size [2021-10-06 21:17:38,261 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 21:17:38,373 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 21:17:38,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:17:38,433 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 21:17:38,433 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:17:38,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765177775] [2021-10-06 21:17:38,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [765177775] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:17:38,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:17:38,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-06 21:17:38,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305120945] [2021-10-06 21:17:38,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 21:17:38,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:17:38,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 21:17:38,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:17:38,439 INFO L87 Difference]: Start difference. First operand 211 states and 544 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 21:17:38,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:17:38,488 INFO L93 Difference]: Finished difference Result 198 states and 518 transitions. [2021-10-06 21:17:38,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 21:17:38,492 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 21:17:38,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:17:38,494 INFO L225 Difference]: With dead ends: 198 [2021-10-06 21:17:38,494 INFO L226 Difference]: Without dead ends: 198 [2021-10-06 21:17:38,495 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:17:38,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-10-06 21:17:38,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-10-06 21:17:38,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 195 states have (on average 2.6564102564102563) internal successors, (518), 197 states have internal predecessors, (518), 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 21:17:38,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 518 transitions. [2021-10-06 21:17:38,526 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 518 transitions. Word has length 3 [2021-10-06 21:17:38,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:17:38,527 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 518 transitions. [2021-10-06 21:17:38,531 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 21:17:38,531 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 518 transitions. [2021-10-06 21:17:38,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-06 21:17:38,532 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:17:38,532 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-06 21:17:38,544 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 21:17:38,743 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 21:17:38,745 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 21:17:38,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:17:38,746 INFO L82 PathProgramCache]: Analyzing trace with hash 498506886, now seen corresponding path program 1 times [2021-10-06 21:17:38,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:17:38,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329736570] [2021-10-06 21:17:38,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:17:38,748 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:17:38,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:17:38,749 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 21:17:38,754 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 21:17:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:17:38,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-06 21:17:38,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:17:38,900 INFO L354 Elim1Store]: treesize reduction 76, result has 30.3 percent of original size [2021-10-06 21:17:38,901 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 25 treesize of output 47 [2021-10-06 21:17:38,913 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 48 treesize of output 46 [2021-10-06 21:17:39,068 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 21:17:39,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:17:39,143 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 21:17:39,144 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:17:39,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1329736570] [2021-10-06 21:17:39,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1329736570] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:17:39,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:17:39,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-06 21:17:39,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558434586] [2021-10-06 21:17:39,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-06 21:17:39,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:17:39,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-06 21:17:39,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:17:39,146 INFO L87 Difference]: Start difference. First operand 198 states and 518 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 21:17:39,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:17:39,169 INFO L93 Difference]: Finished difference Result 156 states and 392 transitions. [2021-10-06 21:17:39,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 21:17:39,170 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 21:17:39,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:17:39,172 INFO L225 Difference]: With dead ends: 156 [2021-10-06 21:17:39,172 INFO L226 Difference]: Without dead ends: 156 [2021-10-06 21:17:39,172 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-06 21:17:39,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-10-06 21:17:39,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2021-10-06 21:17:39,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 154 states have (on average 2.5454545454545454) internal successors, (392), 155 states have internal predecessors, (392), 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 21:17:39,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 392 transitions. [2021-10-06 21:17:39,184 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 392 transitions. Word has length 5 [2021-10-06 21:17:39,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:17:39,185 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 392 transitions. [2021-10-06 21:17:39,185 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 21:17:39,186 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 392 transitions. [2021-10-06 21:17:39,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-06 21:17:39,186 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:17:39,186 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-06 21:17:39,204 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 21:17:39,402 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 21:17:39,403 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 21:17:39,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:17:39,404 INFO L82 PathProgramCache]: Analyzing trace with hash 498506888, now seen corresponding path program 1 times [2021-10-06 21:17:39,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:17:39,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [306833834] [2021-10-06 21:17:39,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:17:39,406 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:17:39,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:17:39,407 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 21:17:39,411 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 21:17:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:17:39,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-06 21:17:39,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:17:39,485 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-06 21:17:39,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 14 [2021-10-06 21:17:39,514 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 21:17:39,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:17:39,538 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 21:17:39,538 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:17:39,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [306833834] [2021-10-06 21:17:39,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [306833834] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:17:39,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:17:39,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-06 21:17:39,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454040395] [2021-10-06 21:17:39,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-06 21:17:39,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:17:39,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-06 21:17:39,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-06 21:17:39,541 INFO L87 Difference]: Start difference. First operand 156 states and 392 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 21:17:39,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:17:39,553 INFO L93 Difference]: Finished difference Result 114 states and 266 transitions. [2021-10-06 21:17:39,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-06 21:17:39,554 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 21:17:39,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:17:39,555 INFO L225 Difference]: With dead ends: 114 [2021-10-06 21:17:39,555 INFO L226 Difference]: Without dead ends: 114 [2021-10-06 21:17:39,555 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 21:17:39,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-10-06 21:17:39,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-10-06 21:17:39,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 2.353982300884956) internal successors, (266), 113 states have internal predecessors, (266), 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 21:17:39,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 266 transitions. [2021-10-06 21:17:39,562 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 266 transitions. Word has length 5 [2021-10-06 21:17:39,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:17:39,563 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 266 transitions. [2021-10-06 21:17:39,563 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 21:17:39,563 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 266 transitions. [2021-10-06 21:17:39,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-06 21:17:39,565 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:17:39,565 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:17:39,577 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 21:17:39,776 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 21:17:39,777 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 21:17:39,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:17:39,778 INFO L82 PathProgramCache]: Analyzing trace with hash -117791033, now seen corresponding path program 1 times [2021-10-06 21:17:39,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:17:39,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602061220] [2021-10-06 21:17:39,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-06 21:17:39,779 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:17:39,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:17:39,780 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 21:17:39,790 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 21:17:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-06 21:17:39,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-06 21:17:39,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:17:39,932 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 21:17:39,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:17:39,989 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 21:17:39,989 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:17:39,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602061220] [2021-10-06 21:17:39,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602061220] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:17:39,990 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:17:39,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-06 21:17:39,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80003772] [2021-10-06 21:17:39,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-06 21:17:39,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:17:39,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-06 21:17:39,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-06 21:17:39,992 INFO L87 Difference]: Start difference. First operand 114 states and 266 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 4 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) [2021-10-06 21:17:40,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:17:40,017 INFO L93 Difference]: Finished difference Result 127 states and 284 transitions. [2021-10-06 21:17:40,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-06 21:17:40,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 4 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 18 [2021-10-06 21:17:40,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:17:40,018 INFO L225 Difference]: With dead ends: 127 [2021-10-06 21:17:40,018 INFO L226 Difference]: Without dead ends: 32 [2021-10-06 21:17:40,018 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.7ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-06 21:17:40,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-06 21:17:40,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-10-06 21:17:40,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 31 states have internal predecessors, (46), 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 21:17:40,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 46 transitions. [2021-10-06 21:17:40,021 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 46 transitions. Word has length 18 [2021-10-06 21:17:40,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:17:40,021 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 46 transitions. [2021-10-06 21:17:40,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 4 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) [2021-10-06 21:17:40,022 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 46 transitions. [2021-10-06 21:17:40,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-06 21:17:40,022 INFO L504 BasicCegarLoop]: Found error trace [2021-10-06 21:17:40,023 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-06 21:17:40,035 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 21:17:40,235 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 21:17:40,236 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-06 21:17:40,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-06 21:17:40,237 INFO L82 PathProgramCache]: Analyzing trace with hash -268108601, now seen corresponding path program 2 times [2021-10-06 21:17:40,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-06 21:17:40,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2123003901] [2021-10-06 21:17:40,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-06 21:17:40,238 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-06 21:17:40,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-06 21:17:40,240 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-06 21:17:40,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-06 21:17:40,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-06 21:17:40,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-06 21:17:40,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-06 21:17:40,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-06 21:17:40,361 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 21:17:40,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-06 21:17:40,414 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 21:17:40,414 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-06 21:17:40,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2123003901] [2021-10-06 21:17:40,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2123003901] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-06 21:17:40,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-06 21:17:40,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-06 21:17:40,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274831374] [2021-10-06 21:17:40,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-06 21:17:40,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-06 21:17:40,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-06 21:17:40,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-06 21:17:40,418 INFO L87 Difference]: Start difference. First operand 32 states and 46 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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 21:17:40,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-06 21:17:40,446 INFO L93 Difference]: Finished difference Result 31 states and 45 transitions. [2021-10-06 21:17:40,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-06 21:17:40,447 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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 18 [2021-10-06 21:17:40,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-06 21:17:40,447 INFO L225 Difference]: With dead ends: 31 [2021-10-06 21:17:40,448 INFO L226 Difference]: Without dead ends: 0 [2021-10-06 21:17:40,449 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 15.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-06 21:17:40,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-06 21:17:40,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-06 21:17:40,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-06 21:17:40,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-06 21:17:40,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-10-06 21:17:40,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-06 21:17:40,453 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-06 21:17:40,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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 21:17:40,453 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-06 21:17:40,454 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-06 21:17:40,456 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-06 21:17:40,457 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-06 21:17:40,457 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-06 21:17:40,457 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-06 21:17:40,457 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-06 21:17:40,458 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-06 21:17:40,458 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-06 21:17:40,458 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-06 21:17:40,459 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-06 21:17:40,459 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-06 21:17:40,460 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-06 21:17:40,460 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-06 21:17:40,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-06 21:17:40,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-06 21:17:40,681 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-06 21:17:40,682 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-06 21:17:40,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 09:17:40 BasicIcfg [2021-10-06 21:17:40,683 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-06 21:17:40,684 INFO L168 Benchmark]: Toolchain (without parser) took 15829.00 ms. Allocated memory was 170.9 MB in the beginning and 220.2 MB in the end (delta: 49.3 MB). Free memory was 146.1 MB in the beginning and 95.1 MB in the end (delta: 51.1 MB). Peak memory consumption was 100.6 MB. Max. memory is 8.0 GB. [2021-10-06 21:17:40,685 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 170.9 MB. Free memory is still 141.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-06 21:17:40,685 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.11 ms. Allocated memory is still 170.9 MB. Free memory was 145.9 MB in the beginning and 135.0 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-06 21:17:40,686 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.25 ms. Allocated memory is still 170.9 MB. Free memory was 135.0 MB in the beginning and 133.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-06 21:17:40,686 INFO L168 Benchmark]: Boogie Preprocessor took 29.71 ms. Allocated memory is still 170.9 MB. Free memory was 133.3 MB in the beginning and 132.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-06 21:17:40,687 INFO L168 Benchmark]: RCFGBuilder took 775.54 ms. Allocated memory is still 170.9 MB. Free memory was 131.8 MB in the beginning and 153.6 MB in the end (delta: -21.8 MB). Peak memory consumption was 21.5 MB. Max. memory is 8.0 GB. [2021-10-06 21:17:40,687 INFO L168 Benchmark]: TraceAbstraction took 14689.02 ms. Allocated memory was 170.9 MB in the beginning and 220.2 MB in the end (delta: 49.3 MB). Free memory was 153.6 MB in the beginning and 95.6 MB in the end (delta: 58.0 MB). Peak memory consumption was 107.5 MB. Max. memory is 8.0 GB. [2021-10-06 21:17:40,690 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 170.9 MB. Free memory is still 141.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 278.11 ms. Allocated memory is still 170.9 MB. Free memory was 145.9 MB in the beginning and 135.0 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 43.25 ms. Allocated memory is still 170.9 MB. Free memory was 135.0 MB in the beginning and 133.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.71 ms. Allocated memory is still 170.9 MB. Free memory was 133.3 MB in the beginning and 132.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 775.54 ms. Allocated memory is still 170.9 MB. Free memory was 131.8 MB in the beginning and 153.6 MB in the end (delta: -21.8 MB). Peak memory consumption was 21.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 14689.02 ms. Allocated memory was 170.9 MB in the beginning and 220.2 MB in the end (delta: 49.3 MB). Free memory was 153.6 MB in the beginning and 95.6 MB in the end (delta: 58.0 MB). Peak memory consumption was 107.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10886.9ms, 131 PlacesBefore, 39 PlacesAfterwards, 134 TransitionsBefore, 34 TransitionsAfterwards, 842 CoEnabledTransitionPairs, 8 FixpointIterations, 86 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 18 TrivialYvCompositions, 11 ConcurrentYvCompositions, 8 ChoiceCompositions, 147 TotalNumberOfCompositions, 3775 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1478, positive: 1282, positive conditional: 0, positive unconditional: 1282, negative: 196, negative conditional: 0, negative unconditional: 196, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 535, positive: 505, positive conditional: 0, positive unconditional: 505, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 535, positive: 499, positive conditional: 0, positive unconditional: 499, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 136, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 121, negative conditional: 0, negative unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1478, positive: 777, positive conditional: 0, positive unconditional: 777, negative: 166, negative conditional: 0, negative unconditional: 166, unknown: 535, unknown conditional: 0, unknown unconditional: 535] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - 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, 151 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 14566.2ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 13.5ms, AutomataDifference: 315.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10957.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 148 SDtfs, 182 SDslu, 36 SDs, 0 SdLazy, 27 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 93.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 126.9ms 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: 140.7ms AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 53.4ms SsaConstructionTime, 142.3ms SatisfiabilityAnalysisTime, 1141.4ms InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 92 ConstructedInterpolants, 4 QuantifiedInterpolants, 492 SizeOfPredicates, 16 NumberOfNonLiveVariables, 325 ConjunctsInSsa, 22 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! [2021-10-06 21:17:40,741 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...