/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-misc-2-unrolled.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c503be2 [2021-10-13 20:29:33,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 20:29:33,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 20:29:33,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-13 20:29:33,243 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-13 20:29:33,287 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 20:29:33,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 20:29:33,288 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 20:29:33,288 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 20:29:33,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 20:29:33,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 20:29:33,292 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 20:29:33,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 20:29:33,292 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 20:29:33,292 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 20:29:33,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 20:29:33,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 20:29:33,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 20:29:33,294 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 20:29:33,294 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 20:29:33,295 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 20:29:33,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 20:29:33,295 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 20:29:33,295 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 20:29:33,295 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 20:29:33,296 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 20:29:33,296 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 20:29:33,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 20:29:33,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 20:29:33,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 20:29:33,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 20:29:33,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 20:29:33,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 20:29:33,297 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 20:29:33,298 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 20:29:33,298 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 20:29:33,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 20:29:33,298 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 20:29:33,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 20:29:33,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 20:29:33,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 20:29:33,722 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 20:29:33,723 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 20:29:33,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c [2021-10-13 20:29:33,801 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da48171b9/107695497c1d4877aaca33d8ba77745b/FLAGbfddba95c [2021-10-13 20:29:34,463 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 20:29:34,464 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c [2021-10-13 20:29:34,474 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da48171b9/107695497c1d4877aaca33d8ba77745b/FLAGbfddba95c [2021-10-13 20:29:34,837 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da48171b9/107695497c1d4877aaca33d8ba77745b [2021-10-13 20:29:34,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 20:29:34,849 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 20:29:34,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 20:29:34,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 20:29:34,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 20:29:34,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:29:34" (1/1) ... [2021-10-13 20:29:34,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cd6304d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:29:34, skipping insertion in model container [2021-10-13 20:29:34,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:29:34" (1/1) ... [2021-10-13 20:29:34,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 20:29:34,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 20:29:35,195 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-misc-2-unrolled.wvr.c[2212,2225] [2021-10-13 20:29:35,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 20:29:35,221 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 20:29:35,244 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-misc-2-unrolled.wvr.c[2212,2225] [2021-10-13 20:29:35,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 20:29:35,265 INFO L208 MainTranslator]: Completed translation [2021-10-13 20:29:35,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:29:35 WrapperNode [2021-10-13 20:29:35,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 20:29:35,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 20:29:35,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 20:29:35,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 20:29:35,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:29:35" (1/1) ... [2021-10-13 20:29:35,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:29:35" (1/1) ... [2021-10-13 20:29:35,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 20:29:35,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 20:29:35,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 20:29:35,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 20:29:35,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:29:35" (1/1) ... [2021-10-13 20:29:35,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:29:35" (1/1) ... [2021-10-13 20:29:35,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:29:35" (1/1) ... [2021-10-13 20:29:35,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:29:35" (1/1) ... [2021-10-13 20:29:35,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:29:35" (1/1) ... [2021-10-13 20:29:35,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:29:35" (1/1) ... [2021-10-13 20:29:35,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:29:35" (1/1) ... [2021-10-13 20:29:35,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 20:29:35,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 20:29:35,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 20:29:35,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 20:29:35,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:29:35" (1/1) ... [2021-10-13 20:29:35,388 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 20:29:35,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 20:29:35,419 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) [2021-10-13 20:29:35,424 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 [2021-10-13 20:29:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-13 20:29:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-13 20:29:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-13 20:29:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-13 20:29:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 20:29:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 20:29:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-13 20:29:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-13 20:29:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 20:29:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 20:29:35,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 20:29:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 20:29:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 20:29:35,502 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 20:29:36,048 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 20:29:36,048 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-13 20:29:36,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:29:36 BoogieIcfgContainer [2021-10-13 20:29:36,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 20:29:36,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 20:29:36,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 20:29:36,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 20:29:36,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:29:34" (1/3) ... [2021-10-13 20:29:36,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1129fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:29:36, skipping insertion in model container [2021-10-13 20:29:36,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:29:35" (2/3) ... [2021-10-13 20:29:36,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1129fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:29:36, skipping insertion in model container [2021-10-13 20:29:36,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:29:36" (3/3) ... [2021-10-13 20:29:36,062 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled.wvr.c [2021-10-13 20:29:36,070 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 20:29:36,070 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-10-13 20:29:36,070 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 20:29:36,145 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,145 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,146 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,146 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,147 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,147 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,147 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,148 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,148 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,148 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,148 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,149 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,149 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,151 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,151 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,152 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,152 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,153 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,153 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,153 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,154 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,154 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,155 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,155 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,155 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,156 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,156 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,156 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,157 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,157 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,158 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,159 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,159 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,160 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,160 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,160 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,165 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,165 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,166 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,167 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,167 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,167 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,175 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,175 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,175 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,175 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 20:29:36,198 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-13 20:29:36,271 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 20:29:36,286 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 [2021-10-13 20:29:36,287 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-10-13 20:29:36,312 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 20:29:36,325 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 102 transitions, 220 flow [2021-10-13 20:29:36,329 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 102 transitions, 220 flow [2021-10-13 20:29:36,332 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 102 transitions, 220 flow [2021-10-13 20:29:36,427 INFO L129 PetriNetUnfolder]: 6/100 cut-off events. [2021-10-13 20:29:36,427 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-13 20:29:36,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 100 events. 6/100 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 107 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2021-10-13 20:29:36,442 INFO L116 LiptonReduction]: Number of co-enabled transitions 936 [2021-10-13 20:29:46,260 INFO L131 LiptonReduction]: Checked pairs total: 969 [2021-10-13 20:29:46,261 INFO L133 LiptonReduction]: Total number of compositions: 102 [2021-10-13 20:29:46,270 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 25 transitions, 66 flow [2021-10-13 20:29:46,283 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 39 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 38 states have internal predecessors, (83), 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) [2021-10-13 20:29:46,285 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 38 states have internal predecessors, (83), 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) [2021-10-13 20:29:46,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-13 20:29:46,290 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:29:46,291 INFO L512 BasicCegarLoop]: trace histogram [1] [2021-10-13 20:29:46,291 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-13 20:29:46,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:29:46,296 INFO L82 PathProgramCache]: Analyzing trace with hash 396, now seen corresponding path program 1 times [2021-10-13 20:29:46,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:29:46,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [606931066] [2021-10-13 20:29:46,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:29:46,308 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:29:46,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:29:46,314 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) [2021-10-13 20:29:46,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 20:29:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:29:46,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 20:29:46,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:29:46,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:29:46,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:29:46,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:29:46,370 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:29:46,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [606931066] [2021-10-13 20:29:46,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [606931066] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:29:46,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:29:46,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2021-10-13 20:29:46,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34954266] [2021-10-13 20:29:46,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 20:29:46,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:29:46,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 20:29:46,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 20:29:46,423 INFO L87 Difference]: Start difference. First operand has 39 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 38 states have internal predecessors, (83), 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) [2021-10-13 20:29:46,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:29:46,436 INFO L93 Difference]: Finished difference Result 36 states and 80 transitions. [2021-10-13 20:29:46,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 20:29:46,437 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 [2021-10-13 20:29:46,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:29:46,447 INFO L225 Difference]: With dead ends: 36 [2021-10-13 20:29:46,447 INFO L226 Difference]: Without dead ends: 36 [2021-10-13 20:29:46,448 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 [2021-10-13 20:29:46,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-13 20:29:46,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-10-13 20:29:46,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 29 states have (on average 2.7586206896551726) internal successors, (80), 35 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 20:29:46,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 80 transitions. [2021-10-13 20:29:46,487 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 80 transitions. Word has length 1 [2021-10-13 20:29:46,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:29:46,488 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 80 transitions. [2021-10-13 20:29:46,488 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) [2021-10-13 20:29:46,488 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 80 transitions. [2021-10-13 20:29:46,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 20:29:46,489 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:29:46,489 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 20:29:46,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-13 20:29:46,701 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 [2021-10-13 20:29:46,702 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-13 20:29:46,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:29:46,703 INFO L82 PathProgramCache]: Analyzing trace with hash 389954, now seen corresponding path program 1 times [2021-10-13 20:29:46,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:29:46,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343098756] [2021-10-13 20:29:46,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:29:46,705 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:29:46,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:29:46,707 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) [2021-10-13 20:29:46,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 20:29:46,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:29:46,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 20:29:46,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:29:46,939 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-13 20:29:46,941 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 [2021-10-13 20:29:46,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:29:46,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:29:47,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:29:47,011 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:29:47,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [343098756] [2021-10-13 20:29:47,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [343098756] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:29:47,015 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:29:47,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-13 20:29:47,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081588099] [2021-10-13 20:29:47,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 20:29:47,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:29:47,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 20:29:47,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 20:29:47,022 INFO L87 Difference]: Start difference. First operand 36 states and 80 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) [2021-10-13 20:29:47,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:29:47,066 INFO L93 Difference]: Finished difference Result 32 states and 72 transitions. [2021-10-13 20:29:47,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 20:29:47,068 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 [2021-10-13 20:29:47,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:29:47,070 INFO L225 Difference]: With dead ends: 32 [2021-10-13 20:29:47,071 INFO L226 Difference]: Without dead ends: 32 [2021-10-13 20:29:47,072 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 20:29:47,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-13 20:29:47,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-10-13 20:29:47,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 2.6666666666666665) internal successors, (72), 31 states have internal predecessors, (72), 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) [2021-10-13 20:29:47,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 72 transitions. [2021-10-13 20:29:47,087 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 72 transitions. Word has length 3 [2021-10-13 20:29:47,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:29:47,089 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 72 transitions. [2021-10-13 20:29:47,089 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) [2021-10-13 20:29:47,090 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 72 transitions. [2021-10-13 20:29:47,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 20:29:47,090 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:29:47,091 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 20:29:47,104 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-13 20:29:47,304 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 [2021-10-13 20:29:47,305 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-13 20:29:47,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:29:47,305 INFO L82 PathProgramCache]: Analyzing trace with hash 389956, now seen corresponding path program 1 times [2021-10-13 20:29:47,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:29:47,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [972704163] [2021-10-13 20:29:47,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:29:47,310 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:29:47,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:29:47,311 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) [2021-10-13 20:29:47,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 20:29:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:29:47,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 20:29:47,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:29:47,471 INFO L354 Elim1Store]: treesize reduction 76, result has 30.3 percent of original size [2021-10-13 20:29:47,471 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 [2021-10-13 20:29:47,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:29:47,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:29:47,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:29:47,601 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:29:47,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [972704163] [2021-10-13 20:29:47,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [972704163] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:29:47,602 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:29:47,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-13 20:29:47,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278304196] [2021-10-13 20:29:47,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 20:29:47,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:29:47,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 20:29:47,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:29:47,605 INFO L87 Difference]: Start difference. First operand 32 states and 72 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) [2021-10-13 20:29:47,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:29:47,627 INFO L93 Difference]: Finished difference Result 28 states and 64 transitions. [2021-10-13 20:29:47,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 20:29:47,627 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 [2021-10-13 20:29:47,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:29:47,629 INFO L225 Difference]: With dead ends: 28 [2021-10-13 20:29:47,629 INFO L226 Difference]: Without dead ends: 28 [2021-10-13 20:29:47,629 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:29:47,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-13 20:29:47,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-13 20:29:47,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 2.56) internal successors, (64), 27 states have internal predecessors, (64), 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) [2021-10-13 20:29:47,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 64 transitions. [2021-10-13 20:29:47,635 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 64 transitions. Word has length 3 [2021-10-13 20:29:47,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:29:47,635 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 64 transitions. [2021-10-13 20:29:47,636 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) [2021-10-13 20:29:47,636 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 64 transitions. [2021-10-13 20:29:47,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 20:29:47,637 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:29:47,637 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 20:29:47,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 20:29:47,837 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 [2021-10-13 20:29:47,838 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-13 20:29:47,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:29:47,839 INFO L82 PathProgramCache]: Analyzing trace with hash 374755234, now seen corresponding path program 1 times [2021-10-13 20:29:47,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:29:47,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168594445] [2021-10-13 20:29:47,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:29:47,841 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:29:47,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:29:47,844 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) [2021-10-13 20:29:47,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 20:29:47,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:29:47,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 20:29:47,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:29:47,937 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-13 20:29:47,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2021-10-13 20:29:48,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:29:48,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:29:48,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:29:48,067 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:29:48,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168594445] [2021-10-13 20:29:48,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168594445] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:29:48,068 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:29:48,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-13 20:29:48,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200909327] [2021-10-13 20:29:48,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 20:29:48,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:29:48,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 20:29:48,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:29:48,070 INFO L87 Difference]: Start difference. First operand 28 states and 64 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) [2021-10-13 20:29:48,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:29:48,091 INFO L93 Difference]: Finished difference Result 24 states and 52 transitions. [2021-10-13 20:29:48,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 20:29:48,092 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 [2021-10-13 20:29:48,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:29:48,093 INFO L225 Difference]: With dead ends: 24 [2021-10-13 20:29:48,093 INFO L226 Difference]: Without dead ends: 24 [2021-10-13 20:29:48,094 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:29:48,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-10-13 20:29:48,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-10-13 20:29:48,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 23 states have internal predecessors, (52), 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) [2021-10-13 20:29:48,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 52 transitions. [2021-10-13 20:29:48,098 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 52 transitions. Word has length 5 [2021-10-13 20:29:48,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:29:48,098 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 52 transitions. [2021-10-13 20:29:48,099 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) [2021-10-13 20:29:48,099 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 52 transitions. [2021-10-13 20:29:48,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 20:29:48,100 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:29:48,100 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 20:29:48,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 20:29:48,314 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 [2021-10-13 20:29:48,314 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 8 more)] === [2021-10-13 20:29:48,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:29:48,315 INFO L82 PathProgramCache]: Analyzing trace with hash 374755236, now seen corresponding path program 1 times [2021-10-13 20:29:48,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:29:48,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1629349659] [2021-10-13 20:29:48,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:29:48,316 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:29:48,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:29:48,318 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) [2021-10-13 20:29:48,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 20:29:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:29:48,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 20:29:48,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:29:48,472 INFO L354 Elim1Store]: treesize reduction 76, result has 30.3 percent of original size [2021-10-13 20:29:48,472 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 [2021-10-13 20:29:48,479 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 [2021-10-13 20:29:48,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:29:48,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:29:48,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:29:48,696 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:29:48,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1629349659] [2021-10-13 20:29:48,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1629349659] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:29:48,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:29:48,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-13 20:29:48,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928342060] [2021-10-13 20:29:48,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 20:29:48,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:29:48,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 20:29:48,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:29:48,698 INFO L87 Difference]: Start difference. First operand 24 states and 52 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) [2021-10-13 20:29:48,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:29:48,714 INFO L93 Difference]: Finished difference Result 20 states and 40 transitions. [2021-10-13 20:29:48,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 20:29:48,715 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 [2021-10-13 20:29:48,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:29:48,715 INFO L225 Difference]: With dead ends: 20 [2021-10-13 20:29:48,716 INFO L226 Difference]: Without dead ends: 20 [2021-10-13 20:29:48,716 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 20:29:48,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-13 20:29:48,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-13 20:29:48,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 19 states have internal predecessors, (40), 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) [2021-10-13 20:29:48,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 40 transitions. [2021-10-13 20:29:48,721 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 40 transitions. Word has length 5 [2021-10-13 20:29:48,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:29:48,722 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 40 transitions. [2021-10-13 20:29:48,722 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) [2021-10-13 20:29:48,722 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 40 transitions. [2021-10-13 20:29:48,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 20:29:48,723 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 20:29:48,723 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 20:29:48,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 20:29:48,934 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 [2021-10-13 20:29:48,935 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)] === [2021-10-13 20:29:48,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 20:29:48,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1808497845, now seen corresponding path program 1 times [2021-10-13 20:29:48,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 20:29:48,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755315001] [2021-10-13 20:29:48,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 20:29:48,938 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 20:29:48,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-13 20:29:48,943 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) [2021-10-13 20:29:48,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 20:29:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 20:29:49,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 20:29:49,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 20:29:49,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:29:49,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 20:29:49,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 20:29:49,205 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 20:29:49,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1755315001] [2021-10-13 20:29:49,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1755315001] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 20:29:49,207 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 20:29:49,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-13 20:29:49,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585667481] [2021-10-13 20:29:49,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 20:29:49,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 20:29:49,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 20:29:49,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 20:29:49,210 INFO L87 Difference]: Start difference. First operand 20 states and 40 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-10-13 20:29:49,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 20:29:49,220 INFO L93 Difference]: Finished difference Result 19 states and 39 transitions. [2021-10-13 20:29:49,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 20:29:49,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-10-13 20:29:49,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 20:29:49,221 INFO L225 Difference]: With dead ends: 19 [2021-10-13 20:29:49,224 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 20:29:49,229 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 20:29:49,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 20:29:49,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 20:29:49,230 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) [2021-10-13 20:29:49,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 20:29:49,230 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-13 20:29:49,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 20:29:49,230 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 20:29:49,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-10-13 20:29:49,251 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 20:29:49,251 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 20:29:49,253 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-13 20:29:49,254 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-13 20:29:49,255 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-13 20:29:49,255 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-13 20:29:49,255 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-13 20:29:49,255 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-13 20:29:49,255 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-13 20:29:49,256 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-13 20:29:49,263 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 20:29:49,264 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 20:29:49,264 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 20:29:49,264 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 20:29:49,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 20:29:49,479 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 [2021-10-13 20:29:49,485 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 20:29:49,485 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 20:29:49,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:29:49 BasicIcfg [2021-10-13 20:29:49,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 20:29:49,498 INFO L168 Benchmark]: Toolchain (without parser) took 14650.27 ms. Allocated memory was 161.5 MB in the beginning and 215.0 MB in the end (delta: 53.5 MB). Free memory was 136.0 MB in the beginning and 192.5 MB in the end (delta: -56.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 20:29:49,499 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 161.5 MB. Free memory is still 134.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 20:29:49,501 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.47 ms. Allocated memory is still 161.5 MB. Free memory was 135.6 MB in the beginning and 125.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-13 20:29:49,502 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.98 ms. Allocated memory is still 161.5 MB. Free memory was 125.0 MB in the beginning and 123.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 20:29:49,502 INFO L168 Benchmark]: Boogie Preprocessor took 44.99 ms. Allocated memory is still 161.5 MB. Free memory was 123.4 MB in the beginning and 122.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-13 20:29:49,505 INFO L168 Benchmark]: RCFGBuilder took 673.47 ms. Allocated memory is still 161.5 MB. Free memory was 122.0 MB in the beginning and 139.8 MB in the end (delta: -17.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. [2021-10-13 20:29:49,510 INFO L168 Benchmark]: TraceAbstraction took 13438.88 ms. Allocated memory was 161.5 MB in the beginning and 215.0 MB in the end (delta: 53.5 MB). Free memory was 139.3 MB in the beginning and 192.5 MB in the end (delta: -53.1 MB). Peak memory consumption was 857.0 kB. Max. memory is 8.0 GB. [2021-10-13 20:29:49,518 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 161.5 MB. Free memory is still 134.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 413.47 ms. Allocated memory is still 161.5 MB. Free memory was 135.6 MB in the beginning and 125.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 63.98 ms. Allocated memory is still 161.5 MB. Free memory was 125.0 MB in the beginning and 123.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 44.99 ms. Allocated memory is still 161.5 MB. Free memory was 123.4 MB in the beginning and 122.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 673.47 ms. Allocated memory is still 161.5 MB. Free memory was 122.0 MB in the beginning and 139.8 MB in the end (delta: -17.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 13438.88 ms. Allocated memory was 161.5 MB in the beginning and 215.0 MB in the end (delta: 53.5 MB). Free memory was 139.3 MB in the beginning and 192.5 MB in the end (delta: -53.1 MB). Peak memory consumption was 857.0 kB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9931.6ms, 103 PlacesBefore, 30 PlacesAfterwards, 102 TransitionsBefore, 25 TransitionsAfterwards, 936 CoEnabledTransitionPairs, 7 FixpointIterations, 59 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 4 ConcurrentYvCompositions, 4 ChoiceCompositions, 102 TotalNumberOfCompositions, 969 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 969, positive: 969, positive conditional: 0, positive unconditional: 969, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 618, positive: 618, positive conditional: 0, positive unconditional: 618, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 618, positive: 601, positive conditional: 0, positive unconditional: 601, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 275, positive: 275, positive conditional: 0, positive unconditional: 275, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 969, positive: 351, positive conditional: 0, positive unconditional: 351, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 618, unknown conditional: 0, unknown unconditional: 618] , Statistics on independence cache: Total cache size (in pairs): 26, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 77]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 77]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 78]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 78]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 79]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 79]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 80]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 80]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 83]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: 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, 123 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 13214.7ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 10.2ms, AutomataDifference: 184.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9996.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 71 SDtfs, 70 SDslu, 0 SDs, 0 SdLazy, 19 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 78.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 104.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 51.7ms AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 77.0ms SsaConstructionTime, 172.5ms SatisfiabilityAnalysisTime, 1060.7ms InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 44 ConstructedInterpolants, 8 QuantifiedInterpolants, 392 SizeOfPredicates, 15 NumberOfNonLiveVariables, 210 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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! [2021-10-13 20:29:49,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...