/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-atomic/lamport-b.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-231806ee773fbd0554de777ff4074f5592c67ff4-231806e [2021-10-13 22:41:47,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 22:41:47,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 22:41:47,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-13 22:41:47,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 22:41:47,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 22:41:47,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 22:41:47,146 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 [2021-10-13 22:41:47,180 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 22:41:47,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 22:41:47,180 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 22:41:47,180 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 22:41:47,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 22:41:47,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 22:41:47,181 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 22:41:47,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 22:41:47,181 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 22:41:47,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 22:41:47,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 22:41:47,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 22:41:47,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 22:41:47,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 22:41:47,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 22:41:47,182 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 22:41:47,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 22:41:47,183 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 22:41:47,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 22:41:47,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 22:41:47,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 22:41:47,183 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-13 22:41:47,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 22:41:47,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:41:47,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 22:41:47,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 22:41:47,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 22:41:47,184 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 22:41:47,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 22:41:47,184 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-13 22:41:47,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 22:41:47,184 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 22:41:47,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 22:41:47,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 22:41:47,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 22:41:47,427 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 22:41:47,427 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 22:41:47,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport-b.i [2021-10-13 22:41:47,495 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c86a013c2/83509039230d43bdb9479c9648612869/FLAGecdf05ab3 [2021-10-13 22:41:47,952 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 22:41:47,952 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport-b.i [2021-10-13 22:41:47,971 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c86a013c2/83509039230d43bdb9479c9648612869/FLAGecdf05ab3 [2021-10-13 22:41:48,454 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c86a013c2/83509039230d43bdb9479c9648612869 [2021-10-13 22:41:48,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 22:41:48,457 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 22:41:48,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 22:41:48,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 22:41:48,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 22:41:48,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:41:48" (1/1) ... [2021-10-13 22:41:48,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd396ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:48, skipping insertion in model container [2021-10-13 22:41:48,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:41:48" (1/1) ... [2021-10-13 22:41:48,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 22:41:48,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 22:41:48,758 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-atomic/lamport-b.i[30203,30216] [2021-10-13 22:41:48,768 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-atomic/lamport-b.i[30581,30594] [2021-10-13 22:41:48,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:41:48,786 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 22:41:48,837 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-atomic/lamport-b.i[30203,30216] [2021-10-13 22:41:48,845 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-atomic/lamport-b.i[30581,30594] [2021-10-13 22:41:48,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:41:48,882 INFO L208 MainTranslator]: Completed translation [2021-10-13 22:41:48,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:48 WrapperNode [2021-10-13 22:41:48,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 22:41:48,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 22:41:48,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 22:41:48,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 22:41:48,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:48" (1/1) ... [2021-10-13 22:41:48,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:48" (1/1) ... [2021-10-13 22:41:48,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 22:41:48,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 22:41:48,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 22:41:48,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 22:41:48,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:48" (1/1) ... [2021-10-13 22:41:48,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:48" (1/1) ... [2021-10-13 22:41:48,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:48" (1/1) ... [2021-10-13 22:41:48,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:48" (1/1) ... [2021-10-13 22:41:48,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:48" (1/1) ... [2021-10-13 22:41:48,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:48" (1/1) ... [2021-10-13 22:41:48,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:48" (1/1) ... [2021-10-13 22:41:48,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 22:41:48,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 22:41:48,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 22:41:48,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 22:41:48,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:48" (1/1) ... [2021-10-13 22:41:48,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:41:48,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 22:41:49,012 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) [2021-10-13 22:41:49,035 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 [2021-10-13 22:41:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 22:41:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-10-13 22:41:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-10-13 22:41:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-10-13 22:41:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-10-13 22:41:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 22:41:49,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 22:41:49,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 22:41:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 22:41:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 22:41:49,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 22:41:49,057 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 22:41:49,329 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 22:41:49,329 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-13 22:41:49,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:41:49 BoogieIcfgContainer [2021-10-13 22:41:49,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 22:41:49,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 22:41:49,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 22:41:49,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 22:41:49,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:41:48" (1/3) ... [2021-10-13 22:41:49,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea7fe80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:41:49, skipping insertion in model container [2021-10-13 22:41:49,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:48" (2/3) ... [2021-10-13 22:41:49,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea7fe80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:41:49, skipping insertion in model container [2021-10-13 22:41:49,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:41:49" (3/3) ... [2021-10-13 22:41:49,340 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport-b.i [2021-10-13 22:41:49,344 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 22:41:49,344 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 22:41:49,345 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-13 22:41:49,345 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 22:41:49,367 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,367 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,367 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,368 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,368 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,368 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,368 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,368 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,369 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,370 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,370 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,370 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,371 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,371 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,377 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,377 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,377 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,378 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,382 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,382 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:49,388 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-13 22:41:49,423 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 22:41:49,428 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 [2021-10-13 22:41:49,428 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-13 22:41:49,437 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 113 transitions, 242 flow [2021-10-13 22:41:49,545 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2378 states, 2375 states have (on average 3.5856842105263156) internal successors, (8516), 2377 states have internal predecessors, (8516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:49,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 2378 states, 2375 states have (on average 3.5856842105263156) internal successors, (8516), 2377 states have internal predecessors, (8516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:49,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 22:41:49,561 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:49,561 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] [2021-10-13 22:41:49,562 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:41:49,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:49,569 INFO L82 PathProgramCache]: Analyzing trace with hash -562325322, now seen corresponding path program 1 times [2021-10-13 22:41:49,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:49,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747725240] [2021-10-13 22:41:49,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:49,578 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:49,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:49,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:49,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747725240] [2021-10-13 22:41:49,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747725240] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:49,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:49,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 22:41:49,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516301307] [2021-10-13 22:41:49,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 22:41:49,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:49,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 22:41:49,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 22:41:49,776 INFO L87 Difference]: Start difference. First operand has 2378 states, 2375 states have (on average 3.5856842105263156) internal successors, (8516), 2377 states have internal predecessors, (8516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:49,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:49,840 INFO L93 Difference]: Finished difference Result 2228 states and 6913 transitions. [2021-10-13 22:41:49,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 22:41:49,842 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2021-10-13 22:41:49,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:49,874 INFO L225 Difference]: With dead ends: 2228 [2021-10-13 22:41:49,874 INFO L226 Difference]: Without dead ends: 2228 [2021-10-13 22:41:49,875 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 22:41:49,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2021-10-13 22:41:49,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2228. [2021-10-13 22:41:49,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 2225 states have (on average 3.1069662921348313) internal successors, (6913), 2227 states have internal predecessors, (6913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 6913 transitions. [2021-10-13 22:41:50,012 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 6913 transitions. Word has length 25 [2021-10-13 22:41:50,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:50,013 INFO L470 AbstractCegarLoop]: Abstraction has 2228 states and 6913 transitions. [2021-10-13 22:41:50,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 6913 transitions. [2021-10-13 22:41:50,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-13 22:41:50,015 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:50,016 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] [2021-10-13 22:41:50,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 22:41:50,017 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:41:50,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:50,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1850324246, now seen corresponding path program 1 times [2021-10-13 22:41:50,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:50,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991571145] [2021-10-13 22:41:50,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:50,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:50,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:50,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:50,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991571145] [2021-10-13 22:41:50,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991571145] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:50,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:50,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 22:41:50,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799106268] [2021-10-13 22:41:50,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:41:50,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:50,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:41:50,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:50,094 INFO L87 Difference]: Start difference. First operand 2228 states and 6913 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:50,156 INFO L93 Difference]: Finished difference Result 2197 states and 6719 transitions. [2021-10-13 22:41:50,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:41:50,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2021-10-13 22:41:50,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:50,172 INFO L225 Difference]: With dead ends: 2197 [2021-10-13 22:41:50,172 INFO L226 Difference]: Without dead ends: 1877 [2021-10-13 22:41:50,173 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:50,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2021-10-13 22:41:50,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1808. [2021-10-13 22:41:50,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1808 states, 1805 states have (on average 3.0997229916897506) internal successors, (5595), 1807 states have internal predecessors, (5595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1808 states to 1808 states and 5595 transitions. [2021-10-13 22:41:50,255 INFO L78 Accepts]: Start accepts. Automaton has 1808 states and 5595 transitions. Word has length 31 [2021-10-13 22:41:50,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:50,255 INFO L470 AbstractCegarLoop]: Abstraction has 1808 states and 5595 transitions. [2021-10-13 22:41:50,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1808 states and 5595 transitions. [2021-10-13 22:41:50,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-13 22:41:50,262 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:50,262 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] [2021-10-13 22:41:50,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 22:41:50,263 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:41:50,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:50,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1298326226, now seen corresponding path program 1 times [2021-10-13 22:41:50,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:50,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690568009] [2021-10-13 22:41:50,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:50,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:50,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:50,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:50,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690568009] [2021-10-13 22:41:50,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690568009] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:50,307 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:50,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 22:41:50,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653299210] [2021-10-13 22:41:50,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:41:50,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:50,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:41:50,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:50,309 INFO L87 Difference]: Start difference. First operand 1808 states and 5595 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:50,334 INFO L93 Difference]: Finished difference Result 1687 states and 5181 transitions. [2021-10-13 22:41:50,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:41:50,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2021-10-13 22:41:50,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:50,343 INFO L225 Difference]: With dead ends: 1687 [2021-10-13 22:41:50,343 INFO L226 Difference]: Without dead ends: 1289 [2021-10-13 22:41:50,343 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:50,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2021-10-13 22:41:50,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1289. [2021-10-13 22:41:50,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 1287 states have (on average 3.1344211344211343) internal successors, (4034), 1288 states have internal predecessors, (4034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 4034 transitions. [2021-10-13 22:41:50,377 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 4034 transitions. Word has length 37 [2021-10-13 22:41:50,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:50,378 INFO L470 AbstractCegarLoop]: Abstraction has 1289 states and 4034 transitions. [2021-10-13 22:41:50,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 4034 transitions. [2021-10-13 22:41:50,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-13 22:41:50,382 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:50,382 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] [2021-10-13 22:41:50,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 22:41:50,383 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:41:50,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:50,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1694189852, now seen corresponding path program 1 times [2021-10-13 22:41:50,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:50,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581674153] [2021-10-13 22:41:50,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:50,384 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:50,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:50,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:50,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581674153] [2021-10-13 22:41:50,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581674153] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:50,430 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:50,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 22:41:50,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531888914] [2021-10-13 22:41:50,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:41:50,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:50,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:41:50,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:50,432 INFO L87 Difference]: Start difference. First operand 1289 states and 4034 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:50,478 INFO L93 Difference]: Finished difference Result 1655 states and 5089 transitions. [2021-10-13 22:41:50,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:41:50,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-10-13 22:41:50,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:50,486 INFO L225 Difference]: With dead ends: 1655 [2021-10-13 22:41:50,486 INFO L226 Difference]: Without dead ends: 1331 [2021-10-13 22:41:50,487 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:50,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2021-10-13 22:41:50,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1263. [2021-10-13 22:41:50,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 1261 states have (on average 3.068992862807296) internal successors, (3870), 1262 states have internal predecessors, (3870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 3870 transitions. [2021-10-13 22:41:50,524 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 3870 transitions. Word has length 46 [2021-10-13 22:41:50,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:50,526 INFO L470 AbstractCegarLoop]: Abstraction has 1263 states and 3870 transitions. [2021-10-13 22:41:50,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 3870 transitions. [2021-10-13 22:41:50,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-13 22:41:50,530 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:50,530 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] [2021-10-13 22:41:50,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 22:41:50,531 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:41:50,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:50,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1870176828, now seen corresponding path program 1 times [2021-10-13 22:41:50,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:50,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115741134] [2021-10-13 22:41:50,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:50,532 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:50,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:50,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:50,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115741134] [2021-10-13 22:41:50,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115741134] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:50,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:50,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 22:41:50,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146848479] [2021-10-13 22:41:50,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:41:50,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:50,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:41:50,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:50,577 INFO L87 Difference]: Start difference. First operand 1263 states and 3870 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:50,601 INFO L93 Difference]: Finished difference Result 1932 states and 5672 transitions. [2021-10-13 22:41:50,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:41:50,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-10-13 22:41:50,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:50,612 INFO L225 Difference]: With dead ends: 1932 [2021-10-13 22:41:50,612 INFO L226 Difference]: Without dead ends: 1932 [2021-10-13 22:41:50,612 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:50,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2021-10-13 22:41:50,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1407. [2021-10-13 22:41:50,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1407 states, 1405 states have (on average 3.03914590747331) internal successors, (4270), 1406 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 4270 transitions. [2021-10-13 22:41:50,710 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 4270 transitions. Word has length 46 [2021-10-13 22:41:50,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:50,711 INFO L470 AbstractCegarLoop]: Abstraction has 1407 states and 4270 transitions. [2021-10-13 22:41:50,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 4270 transitions. [2021-10-13 22:41:50,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-13 22:41:50,714 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:50,714 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] [2021-10-13 22:41:50,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 22:41:50,715 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:41:50,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:50,715 INFO L82 PathProgramCache]: Analyzing trace with hash 227718872, now seen corresponding path program 2 times [2021-10-13 22:41:50,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:50,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134326682] [2021-10-13 22:41:50,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:50,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:50,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:50,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:50,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134326682] [2021-10-13 22:41:50,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134326682] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:50,759 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:50,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 22:41:50,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854982070] [2021-10-13 22:41:50,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:41:50,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:50,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:41:50,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:50,761 INFO L87 Difference]: Start difference. First operand 1407 states and 4270 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:50,785 INFO L93 Difference]: Finished difference Result 1734 states and 4866 transitions. [2021-10-13 22:41:50,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:41:50,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-10-13 22:41:50,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:50,801 INFO L225 Difference]: With dead ends: 1734 [2021-10-13 22:41:50,802 INFO L226 Difference]: Without dead ends: 1722 [2021-10-13 22:41:50,802 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:50,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2021-10-13 22:41:50,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1303. [2021-10-13 22:41:50,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 1301 states have (on average 2.9023827824750192) internal successors, (3776), 1302 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 3776 transitions. [2021-10-13 22:41:50,835 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 3776 transitions. Word has length 46 [2021-10-13 22:41:50,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:50,836 INFO L470 AbstractCegarLoop]: Abstraction has 1303 states and 3776 transitions. [2021-10-13 22:41:50,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 3776 transitions. [2021-10-13 22:41:50,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-13 22:41:50,839 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:50,839 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] [2021-10-13 22:41:50,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 22:41:50,840 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:41:50,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:50,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1327774530, now seen corresponding path program 2 times [2021-10-13 22:41:50,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:50,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307475627] [2021-10-13 22:41:50,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:50,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:50,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:50,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:50,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307475627] [2021-10-13 22:41:50,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307475627] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:50,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:50,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 22:41:50,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385893231] [2021-10-13 22:41:50,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:41:50,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:50,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:41:50,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:50,915 INFO L87 Difference]: Start difference. First operand 1303 states and 3776 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:50,953 INFO L93 Difference]: Finished difference Result 1139 states and 3033 transitions. [2021-10-13 22:41:50,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:41:50,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-10-13 22:41:50,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:50,957 INFO L225 Difference]: With dead ends: 1139 [2021-10-13 22:41:50,958 INFO L226 Difference]: Without dead ends: 879 [2021-10-13 22:41:50,958 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:50,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2021-10-13 22:41:50,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 763. [2021-10-13 22:41:50,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 761 states have (on average 2.590013140604468) internal successors, (1971), 762 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 1971 transitions. [2021-10-13 22:41:50,976 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 1971 transitions. Word has length 46 [2021-10-13 22:41:50,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:50,977 INFO L470 AbstractCegarLoop]: Abstraction has 763 states and 1971 transitions. [2021-10-13 22:41:50,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:50,977 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1971 transitions. [2021-10-13 22:41:50,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-13 22:41:50,979 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:50,979 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] [2021-10-13 22:41:50,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 22:41:50,979 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:41:50,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:50,980 INFO L82 PathProgramCache]: Analyzing trace with hash -110426403, now seen corresponding path program 1 times [2021-10-13 22:41:50,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:50,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725555349] [2021-10-13 22:41:50,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:50,980 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:51,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:51,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:51,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725555349] [2021-10-13 22:41:51,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725555349] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:51,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:51,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 22:41:51,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759195299] [2021-10-13 22:41:51,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:41:51,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:51,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:41:51,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:51,028 INFO L87 Difference]: Start difference. First operand 763 states and 1971 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 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) [2021-10-13 22:41:51,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:51,045 INFO L93 Difference]: Finished difference Result 731 states and 1883 transitions. [2021-10-13 22:41:51,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:41:51,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 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 [2021-10-13 22:41:51,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:51,051 INFO L225 Difference]: With dead ends: 731 [2021-10-13 22:41:51,051 INFO L226 Difference]: Without dead ends: 629 [2021-10-13 22:41:51,051 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:51,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2021-10-13 22:41:51,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 629. [2021-10-13 22:41:51,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 627 states have (on average 2.5821371610845296) internal successors, (1619), 628 states have internal predecessors, (1619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:51,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1619 transitions. [2021-10-13 22:41:51,065 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1619 transitions. Word has length 49 [2021-10-13 22:41:51,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:51,066 INFO L470 AbstractCegarLoop]: Abstraction has 629 states and 1619 transitions. [2021-10-13 22:41:51,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 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) [2021-10-13 22:41:51,067 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1619 transitions. [2021-10-13 22:41:51,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-13 22:41:51,069 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:51,069 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] [2021-10-13 22:41:51,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 22:41:51,069 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:41:51,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:51,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1531088196, now seen corresponding path program 1 times [2021-10-13 22:41:51,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:51,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726009502] [2021-10-13 22:41:51,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:51,070 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:51,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:51,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:51,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726009502] [2021-10-13 22:41:51,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726009502] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:51,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:51,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 22:41:51,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423841583] [2021-10-13 22:41:51,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:41:51,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:51,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:41:51,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:51,118 INFO L87 Difference]: Start difference. First operand 629 states and 1619 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 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) [2021-10-13 22:41:51,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:51,125 INFO L93 Difference]: Finished difference Result 432 states and 1167 transitions. [2021-10-13 22:41:51,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:41:51,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 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 [2021-10-13 22:41:51,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:51,126 INFO L225 Difference]: With dead ends: 432 [2021-10-13 22:41:51,126 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 22:41:51,126 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:51,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 22:41:51,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 22:41:51,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:51,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 22:41:51,127 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2021-10-13 22:41:51,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:51,127 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 22:41:51,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 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) [2021-10-13 22:41:51,127 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 22:41:51,128 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 22:41:51,132 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:41:51,133 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:41:51,133 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 22:41:51,133 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 22:41:51,133 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:41:51,133 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:41:51,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 22:41:51,139 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 22:41:51,140 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 22:41:51,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:41:51 BasicIcfg [2021-10-13 22:41:51,142 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 22:41:51,143 INFO L168 Benchmark]: Toolchain (without parser) took 2685.37 ms. Allocated memory was 174.1 MB in the beginning and 241.2 MB in the end (delta: 67.1 MB). Free memory was 114.1 MB in the beginning and 102.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 79.1 MB. Max. memory is 8.0 GB. [2021-10-13 22:41:51,145 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 174.1 MB. Free memory is still 132.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 22:41:51,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 423.90 ms. Allocated memory was 174.1 MB in the beginning and 241.2 MB in the end (delta: 67.1 MB). Free memory was 113.8 MB in the beginning and 204.3 MB in the end (delta: -90.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2021-10-13 22:41:51,146 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.89 ms. Allocated memory is still 241.2 MB. Free memory was 204.3 MB in the beginning and 202.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 22:41:51,146 INFO L168 Benchmark]: Boogie Preprocessor took 47.41 ms. Allocated memory is still 241.2 MB. Free memory was 202.2 MB in the beginning and 200.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 22:41:51,147 INFO L168 Benchmark]: RCFGBuilder took 359.08 ms. Allocated memory is still 241.2 MB. Free memory was 200.6 MB in the beginning and 187.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-13 22:41:51,147 INFO L168 Benchmark]: TraceAbstraction took 1809.82 ms. Allocated memory is still 241.2 MB. Free memory was 186.5 MB in the beginning and 102.2 MB in the end (delta: 84.3 MB). Peak memory consumption was 85.3 MB. Max. memory is 8.0 GB. [2021-10-13 22:41:51,150 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 174.1 MB. Free memory is still 132.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 423.90 ms. Allocated memory was 174.1 MB in the beginning and 241.2 MB in the end (delta: 67.1 MB). Free memory was 113.8 MB in the beginning and 204.3 MB in the end (delta: -90.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 38.89 ms. Allocated memory is still 241.2 MB. Free memory was 204.3 MB in the beginning and 202.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.41 ms. Allocated memory is still 241.2 MB. Free memory was 202.2 MB in the beginning and 200.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 359.08 ms. Allocated memory is still 241.2 MB. Free memory was 200.6 MB in the beginning and 187.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1809.82 ms. Allocated memory is still 241.2 MB. Free memory was 186.5 MB in the beginning and 102.2 MB in the end (delta: 84.3 MB). Peak memory consumption was 85.3 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: 734]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 708]: 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 5 procedures, 140 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1716.2ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 41.1ms, AutomataDifference: 445.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 117.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 891 SDtfs, 290 SDslu, 517 SDs, 0 SdLazy, 83 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 73.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2378occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 441.1ms AutomataMinimizationTime, 9 MinimizatonAttempts, 1197 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 29.4ms SsaConstructionTime, 119.5ms SatisfiabilityAnalysisTime, 307.4ms InterpolantComputationTime, 375 NumberOfCodeBlocks, 375 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 366 ConstructedInterpolants, 0 QuantifiedInterpolants, 476 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-13 22:41:51,180 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...