/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 17:08:31,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 17:08:31,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 17:08:31,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-21 17:08:31,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-21 17:08:31,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-21 17:08:31,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-21 17:08:31,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-21 17:08:31,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-21 17:08:31,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-21 17:08:31,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-21 17:08:31,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-21 17:08:31,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-21 17:08:31,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-21 17:08:31,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-21 17:08:31,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-21 17:08:31,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-21 17:08:31,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 17:08:31,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 17:08:31,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 17:08:31,719 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-08-21 17:08:31,747 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 17:08:31,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 17:08:31,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 17:08:31,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 17:08:31,751 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 17:08:31,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 17:08:31,751 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 17:08:31,751 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 17:08:31,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 17:08:31,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 17:08:31,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 17:08:31,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 17:08:31,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 17:08:31,752 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 17:08:31,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 17:08:31,753 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 17:08:31,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 17:08:31,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 17:08:31,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 17:08:31,753 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 17:08:31,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 17:08:31,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 17:08:31,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 17:08:31,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 17:08:31,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 17:08:31,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 17:08:31,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 17:08:31,754 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 17:08:31,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 17:08:31,754 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-21 17:08:31,754 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 17:08:32,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 17:08:32,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 17:08:32,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 17:08:32,023 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-21 17:08:32,023 INFO L275 PluginConnector]: CDTParser initialized [2021-08-21 17:08:32,024 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i [2021-08-21 17:08:32,064 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68f542c58/3eeb3cbb1a804433a2f0bb3daf770391/FLAG57955dda6 [2021-08-21 17:08:32,480 INFO L306 CDTParser]: Found 1 translation units. [2021-08-21 17:08:32,481 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i [2021-08-21 17:08:32,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68f542c58/3eeb3cbb1a804433a2f0bb3daf770391/FLAG57955dda6 [2021-08-21 17:08:32,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68f542c58/3eeb3cbb1a804433a2f0bb3daf770391 [2021-08-21 17:08:32,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 17:08:32,813 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-21 17:08:32,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-21 17:08:32,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-21 17:08:32,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-21 17:08:32,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:08:32" (1/1) ... [2021-08-21 17:08:32,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65558d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:08:32, skipping insertion in model container [2021-08-21 17:08:32,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:08:32" (1/1) ... [2021-08-21 17:08:32,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-21 17:08:32,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-21 17:08:32,981 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i[950,963] [2021-08-21 17:08:33,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 17:08:33,103 INFO L203 MainTranslator]: Completed pre-run [2021-08-21 17:08:33,110 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i[950,963] [2021-08-21 17:08:33,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 17:08:33,149 INFO L208 MainTranslator]: Completed translation [2021-08-21 17:08:33,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:08:33 WrapperNode [2021-08-21 17:08:33,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-21 17:08:33,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 17:08:33,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 17:08:33,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 17:08:33,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:08:33" (1/1) ... [2021-08-21 17:08:33,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:08:33" (1/1) ... [2021-08-21 17:08:33,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 17:08:33,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 17:08:33,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 17:08:33,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 17:08:33,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:08:33" (1/1) ... [2021-08-21 17:08:33,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:08:33" (1/1) ... [2021-08-21 17:08:33,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:08:33" (1/1) ... [2021-08-21 17:08:33,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:08:33" (1/1) ... [2021-08-21 17:08:33,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:08:33" (1/1) ... [2021-08-21 17:08:33,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:08:33" (1/1) ... [2021-08-21 17:08:33,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:08:33" (1/1) ... [2021-08-21 17:08:33,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 17:08:33,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 17:08:33,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 17:08:33,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 17:08:33,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:08:33" (1/1) ... [2021-08-21 17:08:33,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 17:08:33,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 17:08:33,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-21 17:08:33,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-21 17:08:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-21 17:08:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-21 17:08:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-21 17:08:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-21 17:08:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-21 17:08:33,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-21 17:08:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-21 17:08:33,304 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-21 17:08:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-21 17:08:33,304 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-21 17:08:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-21 17:08:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-21 17:08:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 17:08:33,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 17:08:33,305 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-21 17:08:33,702 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 17:08:33,702 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-21 17:08:33,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:08:33 BoogieIcfgContainer [2021-08-21 17:08:33,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 17:08:33,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 17:08:33,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 17:08:33,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 17:08:33,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 05:08:32" (1/3) ... [2021-08-21 17:08:33,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@408578db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:08:33, skipping insertion in model container [2021-08-21 17:08:33,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:08:33" (2/3) ... [2021-08-21 17:08:33,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@408578db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:08:33, skipping insertion in model container [2021-08-21 17:08:33,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:08:33" (3/3) ... [2021-08-21 17:08:33,711 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc.i [2021-08-21 17:08:33,715 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 17:08:33,716 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 17:08:33,716 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 17:08:33,716 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 17:08:33,747 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,747 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,747 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,747 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,747 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,747 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,747 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,748 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,748 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,748 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,748 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,748 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,748 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,748 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,749 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,749 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,750 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,750 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,750 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,750 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,754 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,754 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,754 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,754 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,755 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,755 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,755 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,755 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,756 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,756 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,756 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,756 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,756 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,756 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,757 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,757 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,759 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,759 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,759 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,759 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,764 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,764 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,764 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,765 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,768 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,768 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,769 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,769 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:08:33,771 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 17:08:33,805 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 17:08:33,810 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=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 [2021-08-21 17:08:33,811 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-21 17:08:34,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 5560 states, 4769 states have (on average 1.9391906059970643) internal successors, (9248), 5559 states have internal predecessors, (9248), 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) [2021-08-21 17:08:34,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-08-21 17:08:34,330 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:08:34,330 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:08:34,331 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 17:08:34,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:08:34,334 INFO L82 PathProgramCache]: Analyzing trace with hash -194702042, now seen corresponding path program 1 times [2021-08-21 17:08:34,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:08:34,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178551505] [2021-08-21 17:08:34,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:08:34,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:08:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:08:34,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:08:34,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:08:34,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178551505] [2021-08-21 17:08:34,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178551505] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:08:34,650 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:08:34,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 17:08:34,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298052184] [2021-08-21 17:08:34,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 17:08:34,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:08:34,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 17:08:34,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-21 17:08:34,676 INFO L87 Difference]: Start difference. First operand has 5560 states, 4769 states have (on average 1.9391906059970643) internal successors, (9248), 5559 states have internal predecessors, (9248), 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 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:08:34,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:08:34,860 INFO L93 Difference]: Finished difference Result 6344 states and 10764 transitions. [2021-08-21 17:08:34,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 17:08:34,861 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-08-21 17:08:34,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:08:34,890 INFO L225 Difference]: With dead ends: 6344 [2021-08-21 17:08:34,890 INFO L226 Difference]: Without dead ends: 2489 [2021-08-21 17:08:34,891 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 108.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-21 17:08:34,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2489 states. [2021-08-21 17:08:34,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2489 to 2489. [2021-08-21 17:08:34,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2489 states, 2440 states have (on average 2.1471311475409838) internal successors, (5239), 2488 states have internal predecessors, (5239), 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) [2021-08-21 17:08:34,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 5239 transitions. [2021-08-21 17:08:34,984 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 5239 transitions. Word has length 50 [2021-08-21 17:08:34,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:08:34,985 INFO L470 AbstractCegarLoop]: Abstraction has 2489 states and 5239 transitions. [2021-08-21 17:08:34,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:08:34,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 5239 transitions. [2021-08-21 17:08:34,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-08-21 17:08:34,988 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:08:34,988 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:08:34,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 17:08:34,989 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 17:08:34,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:08:34,989 INFO L82 PathProgramCache]: Analyzing trace with hash -331389849, now seen corresponding path program 1 times [2021-08-21 17:08:34,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:08:34,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254862329] [2021-08-21 17:08:34,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:08:34,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:08:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:08:35,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:08:35,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:08:35,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254862329] [2021-08-21 17:08:35,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254862329] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:08:35,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:08:35,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:08:35,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543021524] [2021-08-21 17:08:35,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:08:35,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:08:35,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:08:35,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:08:35,096 INFO L87 Difference]: Start difference. First operand 2489 states and 5239 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:08:35,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:08:35,237 INFO L93 Difference]: Finished difference Result 3161 states and 6849 transitions. [2021-08-21 17:08:35,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 17:08:35,238 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-08-21 17:08:35,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:08:35,243 INFO L225 Difference]: With dead ends: 3161 [2021-08-21 17:08:35,243 INFO L226 Difference]: Without dead ends: 1565 [2021-08-21 17:08:35,244 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 122.0ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-08-21 17:08:35,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2021-08-21 17:08:35,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1565. [2021-08-21 17:08:35,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1537 states have (on average 2.1418347430058557) internal successors, (3292), 1564 states have internal predecessors, (3292), 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) [2021-08-21 17:08:35,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 3292 transitions. [2021-08-21 17:08:35,269 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 3292 transitions. Word has length 52 [2021-08-21 17:08:35,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:08:35,269 INFO L470 AbstractCegarLoop]: Abstraction has 1565 states and 3292 transitions. [2021-08-21 17:08:35,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:08:35,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 3292 transitions. [2021-08-21 17:08:35,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-21 17:08:35,272 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:08:35,272 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:08:35,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 17:08:35,272 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 17:08:35,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:08:35,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1354213090, now seen corresponding path program 1 times [2021-08-21 17:08:35,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:08:35,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069852733] [2021-08-21 17:08:35,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:08:35,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:08:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:08:35,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:08:35,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:08:35,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069852733] [2021-08-21 17:08:35,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069852733] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:08:35,358 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:08:35,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:08:35,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505653646] [2021-08-21 17:08:35,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:08:35,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:08:35,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:08:35,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:08:35,360 INFO L87 Difference]: Start difference. First operand 1565 states and 3292 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2021-08-21 17:08:35,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:08:35,466 INFO L93 Difference]: Finished difference Result 2165 states and 4670 transitions. [2021-08-21 17:08:35,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 17:08:35,467 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2021-08-21 17:08:35,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:08:35,470 INFO L225 Difference]: With dead ends: 2165 [2021-08-21 17:08:35,471 INFO L226 Difference]: Without dead ends: 929 [2021-08-21 17:08:35,471 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 94.1ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-08-21 17:08:35,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2021-08-21 17:08:35,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 929. [2021-08-21 17:08:35,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 913 states have (on average 2.2420591456736036) internal successors, (2047), 928 states have internal predecessors, (2047), 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) [2021-08-21 17:08:35,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 2047 transitions. [2021-08-21 17:08:35,488 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 2047 transitions. Word has length 55 [2021-08-21 17:08:35,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:08:35,488 INFO L470 AbstractCegarLoop]: Abstraction has 929 states and 2047 transitions. [2021-08-21 17:08:35,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2021-08-21 17:08:35,488 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 2047 transitions. [2021-08-21 17:08:35,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-21 17:08:35,490 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:08:35,490 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:08:35,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 17:08:35,490 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 17:08:35,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:08:35,490 INFO L82 PathProgramCache]: Analyzing trace with hash 118050189, now seen corresponding path program 1 times [2021-08-21 17:08:35,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:08:35,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995996890] [2021-08-21 17:08:35,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:08:35,491 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:08:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:08:35,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:08:35,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:08:35,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995996890] [2021-08-21 17:08:35,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995996890] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:08:35,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:08:35,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:08:35,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069487669] [2021-08-21 17:08:35,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:08:35,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:08:35,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:08:35,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:08:35,571 INFO L87 Difference]: Start difference. First operand 929 states and 2047 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2021-08-21 17:08:35,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:08:35,682 INFO L93 Difference]: Finished difference Result 801 states and 1729 transitions. [2021-08-21 17:08:35,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 17:08:35,682 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 58 [2021-08-21 17:08:35,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:08:35,682 INFO L225 Difference]: With dead ends: 801 [2021-08-21 17:08:35,683 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 17:08:35,683 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 111.9ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-08-21 17:08:35,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 17:08:35,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 17:08:35,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:08:35,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 17:08:35,683 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-08-21 17:08:35,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:08:35,683 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 17:08:35,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2021-08-21 17:08:35,684 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 17:08:35,684 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 17:08:35,685 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 17:08:35,686 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 17:08:35,686 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 17:08:35,686 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 17:08:35,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 17:08:35,689 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 17:08:35,689 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 17:08:35,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 05:08:35 BasicIcfg [2021-08-21 17:08:35,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 17:08:35,691 INFO L168 Benchmark]: Toolchain (without parser) took 2878.00 ms. Allocated memory was 177.2 MB in the beginning and 223.3 MB in the end (delta: 46.1 MB). Free memory was 140.2 MB in the beginning and 183.9 MB in the end (delta: -43.8 MB). Peak memory consumption was 3.9 MB. Max. memory is 8.0 GB. [2021-08-21 17:08:35,692 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 177.2 MB. Free memory is still 157.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 17:08:35,692 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.49 ms. Allocated memory is still 177.2 MB. Free memory was 139.9 MB in the beginning and 152.4 MB in the end (delta: -12.5 MB). Peak memory consumption was 9.1 MB. Max. memory is 8.0 GB. [2021-08-21 17:08:35,692 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.71 ms. Allocated memory is still 177.2 MB. Free memory was 152.4 MB in the beginning and 150.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 17:08:35,693 INFO L168 Benchmark]: Boogie Preprocessor took 12.62 ms. Allocated memory is still 177.2 MB. Free memory was 150.3 MB in the beginning and 148.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 17:08:35,693 INFO L168 Benchmark]: RCFGBuilder took 518.14 ms. Allocated memory is still 177.2 MB. Free memory was 148.7 MB in the beginning and 125.1 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-08-21 17:08:35,694 INFO L168 Benchmark]: TraceAbstraction took 1984.28 ms. Allocated memory was 177.2 MB in the beginning and 223.3 MB in the end (delta: 46.1 MB). Free memory was 124.6 MB in the beginning and 183.9 MB in the end (delta: -59.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 17:08:35,695 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 177.2 MB. Free memory is still 157.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 333.49 ms. Allocated memory is still 177.2 MB. Free memory was 139.9 MB in the beginning and 152.4 MB in the end (delta: -12.5 MB). Peak memory consumption was 9.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 23.71 ms. Allocated memory is still 177.2 MB. Free memory was 152.4 MB in the beginning and 150.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.62 ms. Allocated memory is still 177.2 MB. Free memory was 150.3 MB in the beginning and 148.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 518.14 ms. Allocated memory is still 177.2 MB. Free memory was 148.7 MB in the beginning and 125.1 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1984.28 ms. Allocated memory was 177.2 MB in the beginning and 223.3 MB in the end (delta: 46.1 MB). Free memory was 124.6 MB in the beginning and 183.9 MB in the end (delta: -59.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 18126, positive: 17600, positive conditional: 17600, positive unconditional: 0, negative: 526, negative conditional: 526, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18050, positive: 17600, positive conditional: 0, positive unconditional: 17600, negative: 450, negative conditional: 0, negative unconditional: 450, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 668, positive: 654, positive conditional: 0, positive unconditional: 654, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 668, positive: 650, positive conditional: 0, positive unconditional: 650, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18050, positive: 16946, positive conditional: 0, positive unconditional: 16946, negative: 436, negative conditional: 0, negative unconditional: 436, unknown: 668, unknown conditional: 0, unknown unconditional: 668] , Statistics on independence cache: Total cache size (in pairs): 668, Positive cache size: 654, Positive conditional cache size: 0, Positive unconditional cache size: 654, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Independence queries for same thread: 76 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1884.6ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 55.0ms, AutomataDifference: 608.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 470.0ms, PartialOrderReductionTime: 450.4ms, HoareTripleCheckerStatistics: 398 SDtfs, 519 SDslu, 1236 SDs, 0 SdLazy, 96 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 66.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 436.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5560occurred in iteration=0, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 126.3ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.8ms SsaConstructionTime, 85.7ms SatisfiabilityAnalysisTime, 420.8ms InterpolantComputationTime, 215 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 211 ConstructedInterpolants, 0 QuantifiedInterpolants, 617 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-21 17:08:35,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...