/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-06 13:48:58,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-06 13:48:58,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-06 13:48:58,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-06 13:48:58,150 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.epf [2021-08-06 13:48:58,179 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-06 13:48:58,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-06 13:48:58,180 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-06 13:48:58,180 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-06 13:48:58,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-06 13:48:58,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-06 13:48:58,181 INFO L138 SettingsManager]: * Use SBE=true [2021-08-06 13:48:58,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-06 13:48:58,182 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-06 13:48:58,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-06 13:48:58,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-06 13:48:58,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-06 13:48:58,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-06 13:48:58,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-06 13:48:58,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-06 13:48:58,183 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-06 13:48:58,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-06 13:48:58,183 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-06 13:48:58,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-06 13:48:58,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-06 13:48:58,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-06 13:48:58,184 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-06 13:48:58,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-06 13:48:58,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 13:48:58,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-06 13:48:58,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-06 13:48:58,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-06 13:48:58,185 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-06 13:48:58,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-06 13:48:58,186 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-06 13:48:58,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-06 13:48:58,186 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-06 13:48:58,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-06 13:48:58,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-06 13:48:58,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-06 13:48:58,514 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-06 13:48:58,515 INFO L275 PluginConnector]: CDTParser initialized [2021-08-06 13:48:58,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2021-08-06 13:48:58,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/932a25b3a/5fe6f975a1134ef08ce695b062c608b4/FLAG9e4877fa4 [2021-08-06 13:48:59,160 INFO L306 CDTParser]: Found 1 translation units. [2021-08-06 13:48:59,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2021-08-06 13:48:59,178 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/932a25b3a/5fe6f975a1134ef08ce695b062c608b4/FLAG9e4877fa4 [2021-08-06 13:48:59,469 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/932a25b3a/5fe6f975a1134ef08ce695b062c608b4 [2021-08-06 13:48:59,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-06 13:48:59,477 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-06 13:48:59,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-06 13:48:59,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-06 13:48:59,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-06 13:48:59,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 01:48:59" (1/1) ... [2021-08-06 13:48:59,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62801c86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:59, skipping insertion in model container [2021-08-06 13:48:59,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 01:48:59" (1/1) ... [2021-08-06 13:48:59,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-06 13:48:59,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-06 13:48:59,724 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i[949,962] [2021-08-06 13:48:59,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-06 13:48:59,857 INFO L203 MainTranslator]: Completed pre-run [2021-08-06 13:48:59,866 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i[949,962] [2021-08-06 13:48:59,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-06 13:48:59,917 INFO L208 MainTranslator]: Completed translation [2021-08-06 13:48:59,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:59 WrapperNode [2021-08-06 13:48:59,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-06 13:48:59,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-06 13:48:59,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-06 13:48:59,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-06 13:48:59,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:59" (1/1) ... [2021-08-06 13:48:59,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:59" (1/1) ... [2021-08-06 13:48:59,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-06 13:48:59,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-06 13:48:59,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-06 13:48:59,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-06 13:48:59,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:59" (1/1) ... [2021-08-06 13:48:59,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:59" (1/1) ... [2021-08-06 13:48:59,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:59" (1/1) ... [2021-08-06 13:48:59,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:59" (1/1) ... [2021-08-06 13:48:59,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:59" (1/1) ... [2021-08-06 13:48:59,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:59" (1/1) ... [2021-08-06 13:48:59,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:59" (1/1) ... [2021-08-06 13:48:59,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-06 13:48:59,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-06 13:48:59,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-06 13:48:59,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-06 13:48:59,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:59" (1/1) ... [2021-08-06 13:48:59,979 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 13:48:59,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 13:48:59,998 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) [2021-08-06 13:49:00,024 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 [2021-08-06 13:49:00,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-06 13:49:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-06 13:49:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-06 13:49:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-06 13:49:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-06 13:49:00,043 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-06 13:49:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-06 13:49:00,044 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-06 13:49:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-06 13:49:00,044 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-06 13:49:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-06 13:49:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-06 13:49:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-06 13:49:00,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-06 13:49:00,045 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-06 13:49:00,470 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-06 13:49:00,471 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-06 13:49:00,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 01:49:00 BoogieIcfgContainer [2021-08-06 13:49:00,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-06 13:49:00,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-06 13:49:00,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-06 13:49:00,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-06 13:49:00,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.08 01:48:59" (1/3) ... [2021-08-06 13:49:00,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fbaf8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 01:49:00, skipping insertion in model container [2021-08-06 13:49:00,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:59" (2/3) ... [2021-08-06 13:49:00,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fbaf8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 01:49:00, skipping insertion in model container [2021-08-06 13:49:00,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 01:49:00" (3/3) ... [2021-08-06 13:49:00,480 INFO L111 eAbstractionObserver]: Analyzing ICFG safe013_tso.opt.i [2021-08-06 13:49:00,484 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-06 13:49:00,484 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-06 13:49:00,484 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-06 13:49:00,484 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-06 13:49:00,511 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,511 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,511 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,512 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,512 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,512 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,512 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,512 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,513 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,513 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,513 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,513 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,513 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,513 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,514 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,514 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,514 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,514 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,514 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,514 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,515 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,515 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,515 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,515 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,516 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,516 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,516 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,516 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,516 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,516 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,516 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,517 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,517 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,517 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,517 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,517 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,521 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,521 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,521 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,521 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,525 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,525 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,526 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,526 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,528 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,528 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,528 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,528 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:49:00,530 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-06 13:49:00,563 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-06 13:49:00,569 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 [2021-08-06 13:49:00,569 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-06 13:49:00,579 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-08-06 13:49:00,795 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5559 states, 5558 states have (on average 3.4938826916156893) internal successors, (19419), 5558 states have internal predecessors, (19419), 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) [2021-08-06 13:49:00,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 5559 states, 5558 states have (on average 3.4938826916156893) internal successors, (19419), 5558 states have internal predecessors, (19419), 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) [2021-08-06 13:49:00,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-08-06 13:49:00,854 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:49:00,855 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] [2021-08-06 13:49:00,855 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 13:49:00,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:49:00,863 INFO L82 PathProgramCache]: Analyzing trace with hash -2060294953, now seen corresponding path program 1 times [2021-08-06 13:49:00,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:49:00,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853969046] [2021-08-06 13:49:00,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:49:00,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:49:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:49:01,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:49:01,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:49:01,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853969046] [2021-08-06 13:49:01,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853969046] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:49:01,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:49:01,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 13:49:01,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843683952] [2021-08-06 13:49:01,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 13:49:01,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:49:01,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 13:49:01,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 13:49:01,348 INFO L87 Difference]: Start difference. First operand has 5559 states, 5558 states have (on average 3.4938826916156893) internal successors, (19419), 5558 states have internal predecessors, (19419), 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 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-08-06 13:49:01,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:49:01,619 INFO L93 Difference]: Finished difference Result 6343 states and 21547 transitions. [2021-08-06 13:49:01,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 13:49:01,621 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 49 [2021-08-06 13:49:01,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:49:01,721 INFO L225 Difference]: With dead ends: 6343 [2021-08-06 13:49:01,721 INFO L226 Difference]: Without dead ends: 4628 [2021-08-06 13:49:01,722 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 157.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-06 13:49:01,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4628 states. [2021-08-06 13:49:02,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4628 to 4628. [2021-08-06 13:49:02,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4628 states, 4627 states have (on average 3.38599524529933) internal successors, (15667), 4627 states have internal predecessors, (15667), 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) [2021-08-06 13:49:02,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4628 states to 4628 states and 15667 transitions. [2021-08-06 13:49:02,143 INFO L78 Accepts]: Start accepts. Automaton has 4628 states and 15667 transitions. Word has length 49 [2021-08-06 13:49:02,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:49:02,144 INFO L470 AbstractCegarLoop]: Abstraction has 4628 states and 15667 transitions. [2021-08-06 13:49:02,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-08-06 13:49:02,146 INFO L276 IsEmpty]: Start isEmpty. Operand 4628 states and 15667 transitions. [2021-08-06 13:49:02,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-06 13:49:02,156 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:49:02,157 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] [2021-08-06 13:49:02,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-06 13:49:02,157 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 13:49:02,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:49:02,158 INFO L82 PathProgramCache]: Analyzing trace with hash 192009782, now seen corresponding path program 1 times [2021-08-06 13:49:02,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:49:02,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140988311] [2021-08-06 13:49:02,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:49:02,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:49:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:49:02,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:49:02,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:49:02,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140988311] [2021-08-06 13:49:02,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140988311] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:49:02,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:49:02,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 13:49:02,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57002720] [2021-08-06 13:49:02,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 13:49:02,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:49:02,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 13:49:02,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 13:49:02,390 INFO L87 Difference]: Start difference. First operand 4628 states and 15667 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2021-08-06 13:49:02,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:49:02,588 INFO L93 Difference]: Finished difference Result 5524 states and 18556 transitions. [2021-08-06 13:49:02,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 13:49:02,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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 51 [2021-08-06 13:49:02,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:49:02,621 INFO L225 Difference]: With dead ends: 5524 [2021-08-06 13:49:02,622 INFO L226 Difference]: Without dead ends: 4544 [2021-08-06 13:49:02,623 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 132.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-06 13:49:02,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4544 states. [2021-08-06 13:49:02,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4544 to 4544. [2021-08-06 13:49:02,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4544 states, 4543 states have (on average 3.3772837332159367) internal successors, (15343), 4543 states have internal predecessors, (15343), 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) [2021-08-06 13:49:02,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4544 states to 4544 states and 15343 transitions. [2021-08-06 13:49:02,820 INFO L78 Accepts]: Start accepts. Automaton has 4544 states and 15343 transitions. Word has length 51 [2021-08-06 13:49:02,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:49:02,821 INFO L470 AbstractCegarLoop]: Abstraction has 4544 states and 15343 transitions. [2021-08-06 13:49:02,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2021-08-06 13:49:02,821 INFO L276 IsEmpty]: Start isEmpty. Operand 4544 states and 15343 transitions. [2021-08-06 13:49:02,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-08-06 13:49:02,835 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:49:02,835 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] [2021-08-06 13:49:02,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-06 13:49:02,836 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 13:49:02,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:49:02,836 INFO L82 PathProgramCache]: Analyzing trace with hash 801095636, now seen corresponding path program 1 times [2021-08-06 13:49:02,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:49:02,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49517928] [2021-08-06 13:49:02,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:49:02,837 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:49:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:49:03,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:49:03,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:49:03,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49517928] [2021-08-06 13:49:03,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49517928] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:49:03,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:49:03,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 13:49:03,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945460607] [2021-08-06 13:49:03,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 13:49:03,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:49:03,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 13:49:03,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-06 13:49:03,042 INFO L87 Difference]: Start difference. First operand 4544 states and 15343 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) [2021-08-06 13:49:03,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:49:03,281 INFO L93 Difference]: Finished difference Result 5994 states and 20087 transitions. [2021-08-06 13:49:03,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-06 13:49:03,282 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 [2021-08-06 13:49:03,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:49:03,302 INFO L225 Difference]: With dead ends: 5994 [2021-08-06 13:49:03,302 INFO L226 Difference]: Without dead ends: 3110 [2021-08-06 13:49:03,302 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 176.4ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-08-06 13:49:03,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states. [2021-08-06 13:49:03,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 3110. [2021-08-06 13:49:03,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3110 states, 3109 states have (on average 3.2319073657124475) internal successors, (10048), 3109 states have internal predecessors, (10048), 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) [2021-08-06 13:49:03,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3110 states to 3110 states and 10048 transitions. [2021-08-06 13:49:03,451 INFO L78 Accepts]: Start accepts. Automaton has 3110 states and 10048 transitions. Word has length 52 [2021-08-06 13:49:03,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:49:03,451 INFO L470 AbstractCegarLoop]: Abstraction has 3110 states and 10048 transitions. [2021-08-06 13:49:03,451 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) [2021-08-06 13:49:03,452 INFO L276 IsEmpty]: Start isEmpty. Operand 3110 states and 10048 transitions. [2021-08-06 13:49:03,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-06 13:49:03,462 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:49:03,462 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] [2021-08-06 13:49:03,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-06 13:49:03,463 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 13:49:03,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:49:03,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1847065967, now seen corresponding path program 1 times [2021-08-06 13:49:03,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:49:03,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048523748] [2021-08-06 13:49:03,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:49:03,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:49:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:49:03,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:49:03,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:49:03,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048523748] [2021-08-06 13:49:03,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048523748] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:49:03,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:49:03,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 13:49:03,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435740693] [2021-08-06 13:49:03,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 13:49:03,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:49:03,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 13:49:03,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 13:49:03,657 INFO L87 Difference]: Start difference. First operand 3110 states and 10048 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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) [2021-08-06 13:49:03,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:49:03,834 INFO L93 Difference]: Finished difference Result 4806 states and 15392 transitions. [2021-08-06 13:49:03,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 13:49:03,834 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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 [2021-08-06 13:49:03,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:49:03,869 INFO L225 Difference]: With dead ends: 4806 [2021-08-06 13:49:03,869 INFO L226 Difference]: Without dead ends: 3526 [2021-08-06 13:49:03,869 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 124.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-06 13:49:03,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3526 states. [2021-08-06 13:49:03,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3526 to 3046. [2021-08-06 13:49:03,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3046 states, 3045 states have (on average 3.1789819376026274) internal successors, (9680), 3045 states have internal predecessors, (9680), 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) [2021-08-06 13:49:03,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3046 states to 3046 states and 9680 transitions. [2021-08-06 13:49:03,966 INFO L78 Accepts]: Start accepts. Automaton has 3046 states and 9680 transitions. Word has length 55 [2021-08-06 13:49:03,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:49:03,968 INFO L470 AbstractCegarLoop]: Abstraction has 3046 states and 9680 transitions. [2021-08-06 13:49:03,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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) [2021-08-06 13:49:03,968 INFO L276 IsEmpty]: Start isEmpty. Operand 3046 states and 9680 transitions. [2021-08-06 13:49:03,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-08-06 13:49:03,977 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:49:03,977 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] [2021-08-06 13:49:03,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-06 13:49:03,978 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 13:49:03,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:49:03,981 INFO L82 PathProgramCache]: Analyzing trace with hash 781514458, now seen corresponding path program 1 times [2021-08-06 13:49:03,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:49:03,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331410536] [2021-08-06 13:49:03,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:49:03,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:49:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:49:04,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:49:04,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:49:04,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331410536] [2021-08-06 13:49:04,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331410536] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:49:04,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:49:04,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 13:49:04,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953657774] [2021-08-06 13:49:04,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 13:49:04,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:49:04,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 13:49:04,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 13:49:04,174 INFO L87 Difference]: Start difference. First operand 3046 states and 9680 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:49:04,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:49:04,287 INFO L93 Difference]: Finished difference Result 3833 states and 12056 transitions. [2021-08-06 13:49:04,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 13:49:04,288 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-08-06 13:49:04,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:49:04,298 INFO L225 Difference]: With dead ends: 3833 [2021-08-06 13:49:04,298 INFO L226 Difference]: Without dead ends: 2817 [2021-08-06 13:49:04,299 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 76.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-06 13:49:04,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2817 states. [2021-08-06 13:49:04,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2817 to 2817. [2021-08-06 13:49:04,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2817 states, 2816 states have (on average 3.1352982954545454) internal successors, (8829), 2816 states have internal predecessors, (8829), 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) [2021-08-06 13:49:04,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2817 states to 2817 states and 8829 transitions. [2021-08-06 13:49:04,377 INFO L78 Accepts]: Start accepts. Automaton has 2817 states and 8829 transitions. Word has length 56 [2021-08-06 13:49:04,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:49:04,377 INFO L470 AbstractCegarLoop]: Abstraction has 2817 states and 8829 transitions. [2021-08-06 13:49:04,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:49:04,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2817 states and 8829 transitions. [2021-08-06 13:49:04,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-08-06 13:49:04,384 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:49:04,385 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] [2021-08-06 13:49:04,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-06 13:49:04,385 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 13:49:04,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:49:04,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1508462331, now seen corresponding path program 1 times [2021-08-06 13:49:04,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:49:04,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044390651] [2021-08-06 13:49:04,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:49:04,386 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:49:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:49:04,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:49:04,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:49:04,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044390651] [2021-08-06 13:49:04,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044390651] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:49:04,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:49:04,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 13:49:04,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628774210] [2021-08-06 13:49:04,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 13:49:04,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:49:04,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 13:49:04,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-06 13:49:04,507 INFO L87 Difference]: Start difference. First operand 2817 states and 8829 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-08-06 13:49:04,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:49:04,634 INFO L93 Difference]: Finished difference Result 3045 states and 9335 transitions. [2021-08-06 13:49:04,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-06 13:49:04,635 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 57 [2021-08-06 13:49:04,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:49:04,642 INFO L225 Difference]: With dead ends: 3045 [2021-08-06 13:49:04,643 INFO L226 Difference]: Without dead ends: 2193 [2021-08-06 13:49:04,643 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 92.6ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-08-06 13:49:04,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2021-08-06 13:49:04,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2193. [2021-08-06 13:49:04,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2193 states, 2192 states have (on average 3.0182481751824817) internal successors, (6616), 2192 states have internal predecessors, (6616), 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) [2021-08-06 13:49:04,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 6616 transitions. [2021-08-06 13:49:04,738 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 6616 transitions. Word has length 57 [2021-08-06 13:49:04,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:49:04,739 INFO L470 AbstractCegarLoop]: Abstraction has 2193 states and 6616 transitions. [2021-08-06 13:49:04,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-08-06 13:49:04,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 6616 transitions. [2021-08-06 13:49:04,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-06 13:49:04,744 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:49:04,744 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, 1] [2021-08-06 13:49:04,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-06 13:49:04,745 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 13:49:04,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:49:04,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1423598682, now seen corresponding path program 1 times [2021-08-06 13:49:04,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:49:04,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737722856] [2021-08-06 13:49:04,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:49:04,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:49:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:49:04,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:49:04,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:49:04,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737722856] [2021-08-06 13:49:04,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737722856] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:49:04,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:49:04,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-06 13:49:04,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324417826] [2021-08-06 13:49:04,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 13:49:04,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:49:04,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 13:49:04,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-06 13:49:04,921 INFO L87 Difference]: Start difference. First operand 2193 states and 6616 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:49:05,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:49:05,041 INFO L93 Difference]: Finished difference Result 2996 states and 8894 transitions. [2021-08-06 13:49:05,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 13:49:05,041 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-08-06 13:49:05,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:49:05,046 INFO L225 Difference]: With dead ends: 2996 [2021-08-06 13:49:05,046 INFO L226 Difference]: Without dead ends: 1669 [2021-08-06 13:49:05,047 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 98.9ms TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-08-06 13:49:05,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2021-08-06 13:49:05,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1507. [2021-08-06 13:49:05,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 2.8227091633466137) internal successors, (4251), 1506 states have internal predecessors, (4251), 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) [2021-08-06 13:49:05,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4251 transitions. [2021-08-06 13:49:05,087 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4251 transitions. Word has length 59 [2021-08-06 13:49:05,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:49:05,087 INFO L470 AbstractCegarLoop]: Abstraction has 1507 states and 4251 transitions. [2021-08-06 13:49:05,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:49:05,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4251 transitions. [2021-08-06 13:49:05,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-06 13:49:05,091 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:49:05,091 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, 1] [2021-08-06 13:49:05,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-06 13:49:05,091 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 13:49:05,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:49:05,092 INFO L82 PathProgramCache]: Analyzing trace with hash -184563028, now seen corresponding path program 1 times [2021-08-06 13:49:05,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:49:05,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300485052] [2021-08-06 13:49:05,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:49:05,095 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:49:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:49:05,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:49:05,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:49:05,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300485052] [2021-08-06 13:49:05,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300485052] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:49:05,240 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:49:05,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-06 13:49:05,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120633398] [2021-08-06 13:49:05,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 13:49:05,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:49:05,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 13:49:05,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-06 13:49:05,242 INFO L87 Difference]: Start difference. First operand 1507 states and 4251 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:49:05,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:49:05,330 INFO L93 Difference]: Finished difference Result 1075 states and 2928 transitions. [2021-08-06 13:49:05,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 13:49:05,333 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-08-06 13:49:05,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:49:05,334 INFO L225 Difference]: With dead ends: 1075 [2021-08-06 13:49:05,334 INFO L226 Difference]: Without dead ends: 0 [2021-08-06 13:49:05,334 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 84.4ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-08-06 13:49:05,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-06 13:49:05,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-06 13:49:05,335 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) [2021-08-06 13:49:05,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-06 13:49:05,335 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2021-08-06 13:49:05,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:49:05,335 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-06 13:49:05,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 13:49:05,335 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-06 13:49:05,336 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-06 13:49:05,338 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-06 13:49:05,338 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-06 13:49:05,338 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-06 13:49:05,338 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-06 13:49:05,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-06 13:49:05,343 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-06 13:49:05,343 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-06 13:49:05,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.08 01:49:05 BasicIcfg [2021-08-06 13:49:05,347 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-06 13:49:05,348 INFO L168 Benchmark]: Toolchain (without parser) took 5871.12 ms. Allocated memory was 221.2 MB in the beginning and 779.1 MB in the end (delta: 557.8 MB). Free memory was 185.1 MB in the beginning and 536.1 MB in the end (delta: -351.0 MB). Peak memory consumption was 207.7 MB. Max. memory is 8.0 GB. [2021-08-06 13:49:05,348 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 221.2 MB. Free memory was 203.4 MB in the beginning and 203.3 MB in the end (delta: 132.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-06 13:49:05,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 439.10 ms. Allocated memory is still 221.2 MB. Free memory was 184.9 MB in the beginning and 194.8 MB in the end (delta: -10.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-08-06 13:49:05,349 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.44 ms. Allocated memory is still 221.2 MB. Free memory was 194.4 MB in the beginning and 192.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-06 13:49:05,350 INFO L168 Benchmark]: Boogie Preprocessor took 18.77 ms. Allocated memory is still 221.2 MB. Free memory was 192.7 MB in the beginning and 191.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-06 13:49:05,355 INFO L168 Benchmark]: RCFGBuilder took 499.79 ms. Allocated memory is still 221.2 MB. Free memory was 191.2 MB in the beginning and 167.6 MB in the end (delta: 23.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-08-06 13:49:05,355 INFO L168 Benchmark]: TraceAbstraction took 4873.28 ms. Allocated memory was 221.2 MB in the beginning and 779.1 MB in the end (delta: 557.8 MB). Free memory was 167.1 MB in the beginning and 536.1 MB in the end (delta: -369.0 MB). Peak memory consumption was 189.7 MB. Max. memory is 8.0 GB. [2021-08-06 13:49:05,357 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 221.2 MB. Free memory was 203.4 MB in the beginning and 203.3 MB in the end (delta: 132.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 439.10 ms. Allocated memory is still 221.2 MB. Free memory was 184.9 MB in the beginning and 194.8 MB in the end (delta: -10.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 34.44 ms. Allocated memory is still 221.2 MB. Free memory was 194.4 MB in the beginning and 192.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 18.77 ms. Allocated memory is still 221.2 MB. Free memory was 192.7 MB in the beginning and 191.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 499.79 ms. Allocated memory is still 221.2 MB. Free memory was 191.2 MB in the beginning and 167.6 MB in the end (delta: 23.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4873.28 ms. Allocated memory was 221.2 MB in the beginning and 779.1 MB in the end (delta: 557.8 MB). Free memory was 167.1 MB in the beginning and 536.1 MB in the end (delta: -369.0 MB). Peak memory consumption was 189.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4781.2ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 116.2ms, AutomataDifference: 1604.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 226.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 833 SDtfs, 1284 SDslu, 2623 SDs, 0 SdLazy, 262 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 239.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 942.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5559occurred in iteration=0, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1061.3ms AutomataMinimizationTime, 8 MinimizatonAttempts, 642 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 38.3ms SsaConstructionTime, 236.6ms SatisfiabilityAnalysisTime, 1268.8ms InterpolantComputationTime, 438 NumberOfCodeBlocks, 438 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 430 ConstructedInterpolants, 0 QuantifiedInterpolants, 1320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2021-08-06 13:49:05,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...