/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf -i ../sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-07 15:30:00,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-07 15:30:00,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-07 15:30:00,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-07 15:30:00,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-07 15:30:00,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-07 15:30:00,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-07 15:30:00,632 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-07 15:30:00,694 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-07 15:30:00,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-07 15:30:00,695 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-07 15:30:00,695 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-07 15:30:00,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-07 15:30:00,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-07 15:30:00,698 INFO L138 SettingsManager]: * Use SBE=true [2021-10-07 15:30:00,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-07 15:30:00,699 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-07 15:30:00,699 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-07 15:30:00,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-07 15:30:00,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-07 15:30:00,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-07 15:30:00,701 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-07 15:30:00,701 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-07 15:30:00,701 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-07 15:30:00,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-07 15:30:00,702 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-07 15:30:00,702 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-07 15:30:00,702 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-07 15:30:00,702 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-07 15:30:00,702 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-07 15:30:00,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-07 15:30:00,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-07 15:30:00,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-07 15:30:00,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:30:00,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-07 15:30:00,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-07 15:30:00,704 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-07 15:30:00,704 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-07 15:30:00,704 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-07 15:30:00,704 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-07 15:30:00,705 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-07 15:30:01,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-07 15:30:01,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-07 15:30:01,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-07 15:30:01,143 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-07 15:30:01,144 INFO L275 PluginConnector]: CDTParser initialized [2021-10-07 15:30:01,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c [2021-10-07 15:30:01,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c752b29d6/b3feb059f4e14320a478c0ab8ad48155/FLAG7d3a44909 [2021-10-07 15:30:01,784 INFO L306 CDTParser]: Found 1 translation units. [2021-10-07 15:30:01,785 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c [2021-10-07 15:30:01,799 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c752b29d6/b3feb059f4e14320a478c0ab8ad48155/FLAG7d3a44909 [2021-10-07 15:30:02,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c752b29d6/b3feb059f4e14320a478c0ab8ad48155 [2021-10-07 15:30:02,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-07 15:30:02,185 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-07 15:30:02,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-07 15:30:02,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-07 15:30:02,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-07 15:30:02,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:30:02" (1/1) ... [2021-10-07 15:30:02,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5540fe94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:02, skipping insertion in model container [2021-10-07 15:30:02,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:30:02" (1/1) ... [2021-10-07 15:30:02,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-07 15:30:02,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 15:30:02,492 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c[3379,3392] [2021-10-07 15:30:02,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:30:02,537 INFO L203 MainTranslator]: Completed pre-run [2021-10-07 15:30:02,602 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c[3379,3392] [2021-10-07 15:30:02,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:30:02,636 INFO L208 MainTranslator]: Completed translation [2021-10-07 15:30:02,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:02 WrapperNode [2021-10-07 15:30:02,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-07 15:30:02,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-07 15:30:02,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-07 15:30:02,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-07 15:30:02,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:02" (1/1) ... [2021-10-07 15:30:02,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:02" (1/1) ... [2021-10-07 15:30:02,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-07 15:30:02,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-07 15:30:02,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-07 15:30:02,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-07 15:30:02,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:02" (1/1) ... [2021-10-07 15:30:02,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:02" (1/1) ... [2021-10-07 15:30:02,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:02" (1/1) ... [2021-10-07 15:30:02,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:02" (1/1) ... [2021-10-07 15:30:02,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:02" (1/1) ... [2021-10-07 15:30:02,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:02" (1/1) ... [2021-10-07 15:30:02,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:02" (1/1) ... [2021-10-07 15:30:02,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-07 15:30:02,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-07 15:30:02,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-07 15:30:02,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-07 15:30:02,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:02" (1/1) ... [2021-10-07 15:30:02,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:30:02,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:30:02,792 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) [2021-10-07 15:30:02,815 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 [2021-10-07 15:30:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-07 15:30:02,898 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-07 15:30:02,898 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-07 15:30:02,898 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-07 15:30:02,899 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-07 15:30:02,899 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-07 15:30:02,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-07 15:30:02,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-07 15:30:02,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-07 15:30:02,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-07 15:30:02,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-07 15:30:02,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-07 15:30:02,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-07 15:30:02,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-07 15:30:02,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-07 15:30:02,904 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-07 15:30:04,228 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-07 15:30:04,228 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-07 15:30:04,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:30:04 BoogieIcfgContainer [2021-10-07 15:30:04,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-07 15:30:04,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-07 15:30:04,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-07 15:30:04,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-07 15:30:04,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:30:02" (1/3) ... [2021-10-07 15:30:04,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530836dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:30:04, skipping insertion in model container [2021-10-07 15:30:04,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:30:02" (2/3) ... [2021-10-07 15:30:04,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530836dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:30:04, skipping insertion in model container [2021-10-07 15:30:04,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:30:04" (3/3) ... [2021-10-07 15:30:04,240 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-collitem-trans.wvr.c [2021-10-07 15:30:04,247 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-07 15:30:04,248 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-10-07 15:30:04,248 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-07 15:30:04,285 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,285 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,286 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,286 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,287 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,287 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,288 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,288 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,288 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,288 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,289 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,290 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,290 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,290 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,291 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,291 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,291 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,292 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,292 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,292 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,292 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,293 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,293 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,294 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,294 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,294 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,296 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,296 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,296 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,296 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,300 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,301 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,302 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,302 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,302 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,305 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,305 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,306 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,306 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,306 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,308 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,309 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,309 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,309 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,309 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:30:04,316 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-07 15:30:04,369 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-07 15:30:04,377 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 [2021-10-07 15:30:04,378 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-10-07 15:30:04,396 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-07 15:30:04,409 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 123 transitions, 270 flow [2021-10-07 15:30:04,412 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 123 transitions, 270 flow [2021-10-07 15:30:04,415 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 132 places, 123 transitions, 270 flow [2021-10-07 15:30:04,477 INFO L129 PetriNetUnfolder]: 1/120 cut-off events. [2021-10-07 15:30:04,477 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-07 15:30:04,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 120 events. 1/120 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2021-10-07 15:30:04,483 INFO L116 LiptonReduction]: Number of co-enabled transitions 378 [2021-10-07 15:30:21,008 INFO L131 LiptonReduction]: Checked pairs total: 647 [2021-10-07 15:30:21,008 INFO L133 LiptonReduction]: Total number of compositions: 124 [2021-10-07 15:30:21,021 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 33 transitions, 90 flow [2021-10-07 15:30:21,036 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 87 states, 73 states have (on average 2.287671232876712) internal successors, (167), 86 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:30:21,039 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 73 states have (on average 2.287671232876712) internal successors, (167), 86 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:30:21,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-07 15:30:21,045 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:30:21,046 INFO L512 BasicCegarLoop]: trace histogram [1] [2021-10-07 15:30:21,046 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:30:21,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:30:21,053 INFO L82 PathProgramCache]: Analyzing trace with hash 560, now seen corresponding path program 1 times [2021-10-07 15:30:21,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:30:21,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [415109153] [2021-10-07 15:30:21,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:30:21,068 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:30:21,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:30:21,071 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) [2021-10-07 15:30:21,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-07 15:30:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:30:21,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-07 15:30:21,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:30:21,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:21,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:30:21,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:21,147 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:30:21,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [415109153] [2021-10-07 15:30:21,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [415109153] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:30:21,148 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:30:21,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2021-10-07 15:30:21,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429133889] [2021-10-07 15:30:21,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-07 15:30:21,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:30:21,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-07 15:30:21,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-07 15:30:21,176 INFO L87 Difference]: Start difference. First operand has 87 states, 73 states have (on average 2.287671232876712) internal successors, (167), 86 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:30:21,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:30:21,195 INFO L93 Difference]: Finished difference Result 84 states and 164 transitions. [2021-10-07 15:30:21,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-07 15:30:21,197 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 [2021-10-07 15:30:21,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:30:21,209 INFO L225 Difference]: With dead ends: 84 [2021-10-07 15:30:21,210 INFO L226 Difference]: Without dead ends: 84 [2021-10-07 15:30:21,211 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 [2021-10-07 15:30:21,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-10-07 15:30:21,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-10-07 15:30:21,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 2.2465753424657535) internal successors, (164), 83 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:30:21,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 164 transitions. [2021-10-07 15:30:21,259 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 164 transitions. Word has length 1 [2021-10-07 15:30:21,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:30:21,260 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 164 transitions. [2021-10-07 15:30:21,260 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) [2021-10-07 15:30:21,260 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 164 transitions. [2021-10-07 15:30:21,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:30:21,261 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:30:21,261 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:30:21,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-07 15:30:21,478 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 [2021-10-07 15:30:21,479 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:30:21,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:30:21,480 INFO L82 PathProgramCache]: Analyzing trace with hash 553051, now seen corresponding path program 1 times [2021-10-07 15:30:21,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:30:21,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984726529] [2021-10-07 15:30:21,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:30:21,483 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:30:21,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:30:21,484 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) [2021-10-07 15:30:21,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-07 15:30:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:30:21,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:30:21,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:30:21,790 INFO L354 Elim1Store]: treesize reduction 147, result has 20.5 percent of original size [2021-10-07 15:30:21,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 65 [2021-10-07 15:30:21,807 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 113 treesize of output 111 [2021-10-07 15:30:22,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:22,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:30:22,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:22,155 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:30:22,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984726529] [2021-10-07 15:30:22,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984726529] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:30:22,156 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:30:22,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:30:22,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698181328] [2021-10-07 15:30:22,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:30:22,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:30:22,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:30:22,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:30:22,159 INFO L87 Difference]: Start difference. First operand 84 states and 164 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:30:22,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:30:22,219 INFO L93 Difference]: Finished difference Result 78 states and 153 transitions. [2021-10-07 15:30:22,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:30:22,221 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 [2021-10-07 15:30:22,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:30:22,222 INFO L225 Difference]: With dead ends: 78 [2021-10-07 15:30:22,223 INFO L226 Difference]: Without dead ends: 78 [2021-10-07 15:30:22,223 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:30:22,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-10-07 15:30:22,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-10-07 15:30:22,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 69 states have (on average 2.217391304347826) internal successors, (153), 77 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:30:22,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 153 transitions. [2021-10-07 15:30:22,235 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 153 transitions. Word has length 3 [2021-10-07 15:30:22,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:30:22,236 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 153 transitions. [2021-10-07 15:30:22,236 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) [2021-10-07 15:30:22,236 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 153 transitions. [2021-10-07 15:30:22,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:30:22,236 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:30:22,236 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:30:22,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-07 15:30:22,450 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 [2021-10-07 15:30:22,451 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:30:22,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:30:22,452 INFO L82 PathProgramCache]: Analyzing trace with hash 553052, now seen corresponding path program 1 times [2021-10-07 15:30:22,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:30:22,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212303001] [2021-10-07 15:30:22,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:30:22,454 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:30:22,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:30:22,455 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) [2021-10-07 15:30:22,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-07 15:30:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:30:22,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-07 15:30:22,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:30:22,693 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-07 15:30:22,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 59 [2021-10-07 15:30:23,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:23,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:30:23,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:23,172 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:30:23,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212303001] [2021-10-07 15:30:23,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212303001] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:30:23,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:30:23,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-07 15:30:23,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894955511] [2021-10-07 15:30:23,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:30:23,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:30:23,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:30:23,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:30:23,175 INFO L87 Difference]: Start difference. First operand 78 states and 153 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:30:23,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:30:23,237 INFO L93 Difference]: Finished difference Result 72 states and 142 transitions. [2021-10-07 15:30:23,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:30:23,239 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 [2021-10-07 15:30:23,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:30:23,241 INFO L225 Difference]: With dead ends: 72 [2021-10-07 15:30:23,241 INFO L226 Difference]: Without dead ends: 72 [2021-10-07 15:30:23,241 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:30:23,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-07 15:30:23,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-10-07 15:30:23,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 65 states have (on average 2.1846153846153844) internal successors, (142), 71 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:30:23,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 142 transitions. [2021-10-07 15:30:23,263 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 142 transitions. Word has length 3 [2021-10-07 15:30:23,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:30:23,263 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 142 transitions. [2021-10-07 15:30:23,264 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) [2021-10-07 15:30:23,266 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 142 transitions. [2021-10-07 15:30:23,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:30:23,266 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:30:23,266 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 15:30:23,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-07 15:30:23,478 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 [2021-10-07 15:30:23,479 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:30:23,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:30:23,480 INFO L82 PathProgramCache]: Analyzing trace with hash 531496833, now seen corresponding path program 1 times [2021-10-07 15:30:23,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:30:23,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [721811196] [2021-10-07 15:30:23,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:30:23,481 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:30:23,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:30:23,483 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) [2021-10-07 15:30:23,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-07 15:30:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:30:23,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-07 15:30:23,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:30:23,699 INFO L354 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2021-10-07 15:30:23,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 49 [2021-10-07 15:30:23,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:23,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:30:23,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:23,865 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:30:23,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [721811196] [2021-10-07 15:30:23,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [721811196] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:30:23,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:30:23,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:30:23,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018163319] [2021-10-07 15:30:23,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:30:23,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:30:23,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:30:23,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:30:23,868 INFO L87 Difference]: Start difference. First operand 72 states and 142 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:30:23,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:30:23,902 INFO L93 Difference]: Finished difference Result 66 states and 131 transitions. [2021-10-07 15:30:23,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:30:23,902 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 [2021-10-07 15:30:23,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:30:23,904 INFO L225 Difference]: With dead ends: 66 [2021-10-07 15:30:23,904 INFO L226 Difference]: Without dead ends: 66 [2021-10-07 15:30:23,904 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:30:23,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-10-07 15:30:23,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-10-07 15:30:23,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 61 states have (on average 2.1475409836065573) internal successors, (131), 65 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:30:23,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions. [2021-10-07 15:30:23,911 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 5 [2021-10-07 15:30:23,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:30:23,914 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions. [2021-10-07 15:30:23,914 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) [2021-10-07 15:30:23,914 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2021-10-07 15:30:23,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:30:23,915 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:30:23,915 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 15:30:23,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-07 15:30:24,127 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 [2021-10-07 15:30:24,128 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:30:24,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:30:24,129 INFO L82 PathProgramCache]: Analyzing trace with hash 531496834, now seen corresponding path program 1 times [2021-10-07 15:30:24,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:30:24,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289972494] [2021-10-07 15:30:24,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:30:24,131 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:30:24,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:30:24,132 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) [2021-10-07 15:30:24,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-07 15:30:24,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:30:24,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-07 15:30:24,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:30:24,367 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-07 15:30:24,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 59 [2021-10-07 15:30:24,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:24,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:30:24,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:24,799 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:30:24,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289972494] [2021-10-07 15:30:24,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289972494] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:30:24,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:30:24,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-07 15:30:24,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317452751] [2021-10-07 15:30:24,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:30:24,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:30:24,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:30:24,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:30:24,802 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:30:24,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:30:24,827 INFO L93 Difference]: Finished difference Result 60 states and 120 transitions. [2021-10-07 15:30:24,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:30:24,828 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 [2021-10-07 15:30:24,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:30:24,829 INFO L225 Difference]: With dead ends: 60 [2021-10-07 15:30:24,829 INFO L226 Difference]: Without dead ends: 60 [2021-10-07 15:30:24,829 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:30:24,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-10-07 15:30:24,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-10-07 15:30:24,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 57 states have (on average 2.1052631578947367) internal successors, (120), 59 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:30:24,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 120 transitions. [2021-10-07 15:30:24,836 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 120 transitions. Word has length 5 [2021-10-07 15:30:24,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:30:24,836 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 120 transitions. [2021-10-07 15:30:24,836 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) [2021-10-07 15:30:24,836 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 120 transitions. [2021-10-07 15:30:24,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 15:30:24,837 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:30:24,837 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:30:24,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-07 15:30:25,049 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 [2021-10-07 15:30:25,050 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:30:25,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:30:25,051 INFO L82 PathProgramCache]: Analyzing trace with hash -332639671, now seen corresponding path program 1 times [2021-10-07 15:30:25,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:30:25,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511197821] [2021-10-07 15:30:25,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:30:25,053 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:30:25,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:30:25,054 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) [2021-10-07 15:30:25,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-07 15:30:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:30:25,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-07 15:30:25,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:30:25,342 INFO L354 Elim1Store]: treesize reduction 232, result has 18.9 percent of original size [2021-10-07 15:30:25,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 59 [2021-10-07 15:30:25,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:25,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:30:25,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:25,785 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:30:25,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511197821] [2021-10-07 15:30:25,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [511197821] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:30:25,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:30:25,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-07 15:30:25,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879796633] [2021-10-07 15:30:25,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:30:25,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:30:25,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:30:25,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:30:25,788 INFO L87 Difference]: Start difference. First operand 60 states and 120 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:30:25,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:30:25,825 INFO L93 Difference]: Finished difference Result 52 states and 100 transitions. [2021-10-07 15:30:25,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:30:25,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-07 15:30:25,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:30:25,826 INFO L225 Difference]: With dead ends: 52 [2021-10-07 15:30:25,827 INFO L226 Difference]: Without dead ends: 52 [2021-10-07 15:30:25,827 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.2ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:30:25,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-07 15:30:25,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-07 15:30:25,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 50 states have (on average 2.0) internal successors, (100), 51 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:30:25,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 100 transitions. [2021-10-07 15:30:25,832 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 100 transitions. Word has length 7 [2021-10-07 15:30:25,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:30:25,832 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 100 transitions. [2021-10-07 15:30:25,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:30:25,833 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 100 transitions. [2021-10-07 15:30:25,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 15:30:25,833 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:30:25,833 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:30:25,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-07 15:30:26,034 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 [2021-10-07 15:30:26,035 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:30:26,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:30:26,036 INFO L82 PathProgramCache]: Analyzing trace with hash -332639669, now seen corresponding path program 1 times [2021-10-07 15:30:26,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:30:26,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239141455] [2021-10-07 15:30:26,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:30:26,037 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:30:26,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:30:26,039 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) [2021-10-07 15:30:26,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-07 15:30:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:30:26,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-07 15:30:26,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:30:26,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:26,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:30:26,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:30:26,299 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:30:26,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239141455] [2021-10-07 15:30:26,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239141455] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:30:26,299 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:30:26,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-07 15:30:26,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141551319] [2021-10-07 15:30:26,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:30:26,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:30:26,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:30:26,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:30:26,305 INFO L87 Difference]: Start difference. First operand 52 states and 100 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-07 15:30:26,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:30:26,329 INFO L93 Difference]: Finished difference Result 44 states and 80 transitions. [2021-10-07 15:30:26,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:30:26,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-07 15:30:26,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:30:26,331 INFO L225 Difference]: With dead ends: 44 [2021-10-07 15:30:26,331 INFO L226 Difference]: Without dead ends: 44 [2021-10-07 15:30:26,332 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:30:26,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-07 15:30:26,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-10-07 15:30:26,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:30:26,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 80 transitions. [2021-10-07 15:30:26,341 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 80 transitions. Word has length 7 [2021-10-07 15:30:26,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:30:26,341 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 80 transitions. [2021-10-07 15:30:26,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-07 15:30:26,342 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 80 transitions. [2021-10-07 15:30:26,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-07 15:30:26,346 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:30:26,346 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:30:26,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-07 15:30:26,555 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 [2021-10-07 15:30:26,555 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-10-07 15:30:26,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:30:26,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1937802111, now seen corresponding path program 1 times [2021-10-07 15:30:26,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:30:26,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364464400] [2021-10-07 15:30:26,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:30:26,558 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:30:26,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:30:26,559 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:30:26,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-07 15:30:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 15:30:26,711 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-07 15:30:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 15:30:26,884 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-07 15:30:26,884 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-07 15:30:26,885 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 15:30:26,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-07 15:30:26,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-07 15:30:26,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-07 15:30:26,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-07 15:30:26,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-07 15:30:26,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-07 15:30:26,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-07 15:30:26,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-07 15:30:26,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-07 15:30:26,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-07 15:30:26,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-07 15:30:26,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-07 15:30:26,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 15:30:26,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-07 15:30:26,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-07 15:30:26,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-07 15:30:26,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-07 15:30:27,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:30:27,113 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-07 15:30:27,113 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-07 15:30:27,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 03:30:27 BasicIcfg [2021-10-07 15:30:27,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-07 15:30:27,191 INFO L168 Benchmark]: Toolchain (without parser) took 25013.39 ms. Allocated memory was 158.3 MB in the beginning and 194.0 MB in the end (delta: 35.7 MB). Free memory was 131.9 MB in the beginning and 118.5 MB in the end (delta: 13.4 MB). Peak memory consumption was 50.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:30:27,191 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 158.3 MB. Free memory is still 130.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 15:30:27,192 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.33 ms. Allocated memory is still 158.3 MB. Free memory was 131.5 MB in the beginning and 120.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-07 15:30:27,193 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.73 ms. Allocated memory is still 158.3 MB. Free memory was 120.1 MB in the beginning and 118.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:30:27,193 INFO L168 Benchmark]: Boogie Preprocessor took 47.32 ms. Allocated memory is still 158.3 MB. Free memory was 118.4 MB in the beginning and 117.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-07 15:30:27,194 INFO L168 Benchmark]: RCFGBuilder took 1488.78 ms. Allocated memory is still 158.3 MB. Free memory was 117.0 MB in the beginning and 125.7 MB in the end (delta: -8.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 8.0 GB. [2021-10-07 15:30:27,194 INFO L168 Benchmark]: TraceAbstraction took 22956.98 ms. Allocated memory was 158.3 MB in the beginning and 194.0 MB in the end (delta: 35.7 MB). Free memory was 125.2 MB in the beginning and 118.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 42.9 MB. Max. memory is 8.0 GB. [2021-10-07 15:30:27,198 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 158.3 MB. Free memory is still 130.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 450.33 ms. Allocated memory is still 158.3 MB. Free memory was 131.5 MB in the beginning and 120.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 54.73 ms. Allocated memory is still 158.3 MB. Free memory was 120.1 MB in the beginning and 118.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.32 ms. Allocated memory is still 158.3 MB. Free memory was 118.4 MB in the beginning and 117.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1488.78 ms. Allocated memory is still 158.3 MB. Free memory was 117.0 MB in the beginning and 125.7 MB in the end (delta: -8.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 22956.98 ms. Allocated memory was 158.3 MB in the beginning and 194.0 MB in the end (delta: 35.7 MB). Free memory was 125.2 MB in the beginning and 118.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 42.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16596.2ms, 132 PlacesBefore, 43 PlacesAfterwards, 123 TransitionsBefore, 33 TransitionsAfterwards, 378 CoEnabledTransitionPairs, 7 FixpointIterations, 91 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 124 TotalNumberOfCompositions, 647 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 647, positive: 647, positive conditional: 0, positive unconditional: 647, 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: 265, positive: 265, positive conditional: 0, positive unconditional: 265, 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: 265, positive: 265, positive conditional: 0, positive unconditional: 265, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 647, positive: 382, positive conditional: 0, positive unconditional: 382, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 265, unknown conditional: 0, unknown unconditional: 265] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 48, Positive conditional cache size: 0, Positive unconditional cache size: 48, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 98]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 98. Possible FailurePath: [L38] 0 int cardSet_0, cardRarity_1, cardId_2, cardType_3, cardSet_4, cardRarity_5, cardId_6, cardType_7, cardSet_8, cardRarity_9, cardId_10, cardType_11, result_12, result_13, result_14; [L74] 0 pthread_t t1, t2, t3; [L76] 0 cardSet_0 = __VERIFIER_nondet_int() [L77] 0 cardRarity_1 = __VERIFIER_nondet_int() [L78] 0 cardId_2 = __VERIFIER_nondet_int() [L79] 0 cardType_3 = __VERIFIER_nondet_int() [L80] 0 cardSet_4 = __VERIFIER_nondet_int() [L81] 0 cardRarity_5 = __VERIFIER_nondet_int() [L82] 0 cardId_6 = __VERIFIER_nondet_int() [L83] 0 cardType_7 = __VERIFIER_nondet_int() [L84] 0 cardSet_8 = __VERIFIER_nondet_int() [L85] 0 cardRarity_9 = __VERIFIER_nondet_int() [L86] 0 cardId_10 = __VERIFIER_nondet_int() [L87] 0 cardType_11 = __VERIFIER_nondet_int() [L90] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [result_12=0, result_13=0, result_14=0] [L91] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [result_12=0, result_13=0, result_14=0] [L92] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [result_12=0, result_13=0, result_14=0] [L64] 3 result_14 = cardSet_0 - cardSet_8 [L65] EXPR 3 result_14 == 0 ? cardRarity_1 - cardRarity_9 : result_14 [L65] 3 result_14 = result_14 == 0 ? cardRarity_1 - cardRarity_9 : result_14 [L66] EXPR 3 result_14 == 0 ? cardId_2 - cardId_10 : result_14 [L66] 3 result_14 = result_14 == 0 ? cardId_2 - cardId_10 : result_14 [L67] EXPR 3 result_14 == 0 ? cardType_3 - cardType_11 : result_14 [L67] 3 result_14 = result_14 == 0 ? cardType_3 - cardType_11 : result_14 [L70] 3 return 0; [L53] 2 result_13 = cardSet_4 - cardSet_8 [L54] EXPR 2 result_13 == 0 ? cardRarity_5 - cardRarity_9 : result_13 [L54] 2 result_13 = result_13 == 0 ? cardRarity_5 - cardRarity_9 : result_13 [L55] EXPR 2 result_13 == 0 ? cardId_6 - cardId_10 : result_13 [L55] 2 result_13 = result_13 == 0 ? cardId_6 - cardId_10 : result_13 [L56] EXPR 2 result_13 == 0 ? cardType_7 - cardType_11 : result_13 [L56] 2 result_13 = result_13 == 0 ? cardType_7 - cardType_11 : result_13 [L59] 2 return 0; [L42] 1 result_12 = cardSet_0 - cardSet_4 [L43] EXPR 1 result_12 == 0 ? cardRarity_1 - cardRarity_5 : result_12 [L43] 1 result_12 = result_12 == 0 ? cardRarity_1 - cardRarity_5 : result_12 [L44] EXPR 1 result_12 == 0 ? cardId_2 - cardId_6 : result_12 [L44] 1 result_12 = result_12 == 0 ? cardId_2 - cardId_6 : result_12 [L45] EXPR 1 result_12 == 0 ? cardType_3 - cardType_7 : result_12 [L45] 1 result_12 = result_12 == 0 ? cardType_3 - cardType_7 : result_12 [L48] 1 return 0; [L93] 0 \read(t1) VAL [\result={0:0}, \result={0:0}, \result={0:0}, cardId_10=0, cardId_2=-2134900736, cardId_6=268435456, cardRarity_1=-1379926016, cardRarity_5=1023410176, cardRarity_9=754974720, cardSet_0=-2147483648, cardSet_4=-2147483648, cardSet_8=-2147483648, cardType_11=0, cardType_3=0, cardType_7=0, result_12=1891631104, result_13=268435456, result_14=-2134900736] [L93] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, cardId_10=0, cardId_2=-2134900736, cardId_6=268435456, cardRarity_1=-1379926016, cardRarity_5=1023410176, cardRarity_9=754974720, cardSet_0=-2147483648, cardSet_4=-2147483648, cardSet_8=-2147483648, cardType_11=0, cardType_3=0, cardType_7=0, result_12=1891631104, result_13=268435456, result_14=-2134900736] [L94] 0 \read(t2) VAL [\result={0:0}, \result={0:0}, \result={0:0}, cardId_10=0, cardId_2=-2134900736, cardId_6=268435456, cardRarity_1=-1379926016, cardRarity_5=1023410176, cardRarity_9=754974720, cardSet_0=-2147483648, cardSet_4=-2147483648, cardSet_8=-2147483648, cardType_11=0, cardType_3=0, cardType_7=0, result_12=1891631104, result_13=268435456, result_14=-2134900736] [L94] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, cardId_10=0, cardId_2=-2134900736, cardId_6=268435456, cardRarity_1=-1379926016, cardRarity_5=1023410176, cardRarity_9=754974720, cardSet_0=-2147483648, cardSet_4=-2147483648, cardSet_8=-2147483648, cardType_11=0, cardType_3=0, cardType_7=0, result_12=1891631104, result_13=268435456, result_14=-2134900736] [L95] 0 \read(t3) VAL [\result={0:0}, \result={0:0}, \result={0:0}, cardId_10=0, cardId_2=-2134900736, cardId_6=268435456, cardRarity_1=-1379926016, cardRarity_5=1023410176, cardRarity_9=754974720, cardSet_0=-2147483648, cardSet_4=-2147483648, cardSet_8=-2147483648, cardType_11=0, cardType_3=0, cardType_7=0, result_12=1891631104, result_13=268435456, result_14=-2134900736] [L95] FCALL, JOIN 3 pthread_join(t3, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, cardId_10=0, cardId_2=-2134900736, cardId_6=268435456, cardRarity_1=-1379926016, cardRarity_5=1023410176, cardRarity_9=754974720, cardSet_0=-2147483648, cardSet_4=-2147483648, cardSet_8=-2147483648, cardType_11=0, cardType_3=0, cardType_7=0, result_12=1891631104, result_13=268435456, result_14=-2134900736] [L35] COND FALSE 0 !(!cond) [L98] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, cardId_10=0, cardId_2=-2134900736, cardId_6=268435456, cardRarity_1=-1379926016, cardRarity_5=1023410176, cardRarity_9=754974720, cardSet_0=-2147483648, cardSet_4=-2147483648, cardSet_8=-2147483648, cardType_11=0, cardType_3=0, cardType_7=0, result_12=1891631104, result_13=268435456, result_14=-2134900736] - UnprovableResult [Line: 90]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 93]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 93]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 94]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 94]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 95]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 95]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 138 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 22742.9ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 15.6ms, AutomataDifference: 324.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16658.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 100 SDtfs, 151 SDslu, 0 SDs, 0 SdLazy, 43 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 151.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 163.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 89.6ms AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 82.1ms SsaConstructionTime, 290.5ms SatisfiabilityAnalysisTime, 3013.8ms InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 48 ConstructedInterpolants, 2 QuantifiedInterpolants, 566 SizeOfPredicates, 20 NumberOfNonLiveVariables, 277 ConjunctsInSsa, 18 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-07 15:30:27,248 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...