/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-atomic/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:41:41,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:41:41,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:41:41,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:41:41,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:41:41,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:41:41,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:41:41,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:41:41,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:41:41,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:41:41,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:41:41,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:41:41,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:41:41,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:41:41,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:41:41,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:41:41,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:41:41,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:41:41,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:41:41,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:41:41,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:41:41,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:41:41,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:41:41,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:41:41,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:41:41,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:41:41,981 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:41:41,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:41:41,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:41:41,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:41:41,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:41:41,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:41:41,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:41:41,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:41:41,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:41:41,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:41:41,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:41:41,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:41:41,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:41:41,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:41:42,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:41:42,002 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 11:41:42,044 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:41:42,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:41:42,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:41:42,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:41:42,048 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:41:42,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:41:42,048 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:41:42,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:41:42,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:41:42,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:41:42,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:41:42,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:41:42,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:41:42,051 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:41:42,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:41:42,051 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:41:42,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:41:42,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:41:42,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:41:42,052 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:41:42,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:41:42,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:41:42,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:41:42,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 11:41:42,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:41:42,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:41:42,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:41:42,054 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 11:41:42,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:41:42,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:41:42,360 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:41:42,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:41:42,365 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:41:42,366 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:41:42,367 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2020-10-16 11:41:42,432 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff3188971/d7337f94872f40219fe62a00f1489400/FLAGb90eb7066 [2020-10-16 11:41:43,004 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:41:43,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-atomic/dekker.i [2020-10-16 11:41:43,018 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff3188971/d7337f94872f40219fe62a00f1489400/FLAGb90eb7066 [2020-10-16 11:41:43,267 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff3188971/d7337f94872f40219fe62a00f1489400 [2020-10-16 11:41:43,275 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:41:43,277 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:41:43,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:41:43,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:41:43,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:41:43,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:41:43" (1/1) ... [2020-10-16 11:41:43,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d47e419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:43, skipping insertion in model container [2020-10-16 11:41:43,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:41:43" (1/1) ... [2020-10-16 11:41:43,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:41:43,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:41:43,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:41:43,792 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:41:43,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:41:43,916 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:41:43,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:43 WrapperNode [2020-10-16 11:41:43,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:41:43,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:41:43,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:41:43,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:41:43,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:43" (1/1) ... [2020-10-16 11:41:43,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:43" (1/1) ... [2020-10-16 11:41:43,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:41:43,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:41:43,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:41:43,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:41:43,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:43" (1/1) ... [2020-10-16 11:41:43,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:43" (1/1) ... [2020-10-16 11:41:43,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:43" (1/1) ... [2020-10-16 11:41:43,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:43" (1/1) ... [2020-10-16 11:41:43,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:43" (1/1) ... [2020-10-16 11:41:44,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:43" (1/1) ... [2020-10-16 11:41:44,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:43" (1/1) ... [2020-10-16 11:41:44,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:41:44,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:41:44,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:41:44,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:41:44,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:41:44,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 11:41:44,084 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-10-16 11:41:44,085 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-10-16 11:41:44,085 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-16 11:41:44,085 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-16 11:41:44,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:41:44,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:41:44,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:41:44,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:41:44,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:41:44,090 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:41:44,403 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:41:44,403 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-16 11:41:44,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:41:44 BoogieIcfgContainer [2020-10-16 11:41:44,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:41:44,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:41:44,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:41:44,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:41:44,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:41:43" (1/3) ... [2020-10-16 11:41:44,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cbfd2d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:41:44, skipping insertion in model container [2020-10-16 11:41:44,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:43" (2/3) ... [2020-10-16 11:41:44,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cbfd2d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:41:44, skipping insertion in model container [2020-10-16 11:41:44,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:41:44" (3/3) ... [2020-10-16 11:41:44,415 INFO L111 eAbstractionObserver]: Analyzing ICFG dekker.i [2020-10-16 11:41:44,427 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:41:44,427 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:41:44,436 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 11:41:44,437 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:41:44,466 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,466 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,467 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,467 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,469 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,469 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,470 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,470 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,471 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,471 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,472 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,473 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,476 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,477 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,477 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,477 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,489 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,490 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,490 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,490 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:44,531 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-16 11:41:44,545 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 11:41:44,564 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:41:44,565 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:41:44,565 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 11:41:44,565 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:41:44,565 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:41:44,565 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:41:44,565 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:41:44,566 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:41:44,580 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 11:41:44,580 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 82 transitions, 186 flow [2020-10-16 11:41:44,583 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 82 transitions, 186 flow [2020-10-16 11:41:44,584 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 74 places, 82 transitions, 186 flow [2020-10-16 11:41:44,634 INFO L129 PetriNetUnfolder]: 14/82 cut-off events. [2020-10-16 11:41:44,635 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 11:41:44,642 INFO L80 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 82 events. 14/82 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 112 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 53. Up to 3 conditions per place. [2020-10-16 11:41:44,646 INFO L117 LiptonReduction]: Number of co-enabled transitions 1428 [2020-10-16 11:41:45,525 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-10-16 11:41:45,712 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-10-16 11:41:45,793 INFO L132 LiptonReduction]: Checked pairs total: 6034 [2020-10-16 11:41:45,794 INFO L134 LiptonReduction]: Total number of compositions: 43 [2020-10-16 11:41:45,802 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 47 transitions, 116 flow [2020-10-16 11:41:45,840 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 389 states. [2020-10-16 11:41:45,843 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states. [2020-10-16 11:41:45,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 11:41:45,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:45,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 11:41:45,852 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:45,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:45,859 INFO L82 PathProgramCache]: Analyzing trace with hash 321069377, now seen corresponding path program 1 times [2020-10-16 11:41:45,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:45,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243808322] [2020-10-16 11:41:45,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:46,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:46,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243808322] [2020-10-16 11:41:46,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:46,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:41:46,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395451369] [2020-10-16 11:41:46,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 11:41:46,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:46,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 11:41:46,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 11:41:46,089 INFO L87 Difference]: Start difference. First operand 389 states. Second operand 2 states. [2020-10-16 11:41:46,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:46,125 INFO L93 Difference]: Finished difference Result 389 states and 1030 transitions. [2020-10-16 11:41:46,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 11:41:46,126 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-10-16 11:41:46,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:46,146 INFO L225 Difference]: With dead ends: 389 [2020-10-16 11:41:46,146 INFO L226 Difference]: Without dead ends: 350 [2020-10-16 11:41:46,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 11:41:46,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-10-16 11:41:46,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2020-10-16 11:41:46,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-10-16 11:41:46,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 945 transitions. [2020-10-16 11:41:46,245 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 945 transitions. Word has length 5 [2020-10-16 11:41:46,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:46,246 INFO L481 AbstractCegarLoop]: Abstraction has 350 states and 945 transitions. [2020-10-16 11:41:46,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 11:41:46,246 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 945 transitions. [2020-10-16 11:41:46,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 11:41:46,247 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:46,247 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 11:41:46,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:41:46,247 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:46,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:46,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1363179009, now seen corresponding path program 1 times [2020-10-16 11:41:46,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:46,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525467249] [2020-10-16 11:41:46,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:46,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:46,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525467249] [2020-10-16 11:41:46,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:46,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:41:46,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409051593] [2020-10-16 11:41:46,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:41:46,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:46,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:41:46,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:46,316 INFO L87 Difference]: Start difference. First operand 350 states and 945 transitions. Second operand 3 states. [2020-10-16 11:41:46,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:46,346 INFO L93 Difference]: Finished difference Result 365 states and 947 transitions. [2020-10-16 11:41:46,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:41:46,346 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-16 11:41:46,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:46,350 INFO L225 Difference]: With dead ends: 365 [2020-10-16 11:41:46,350 INFO L226 Difference]: Without dead ends: 293 [2020-10-16 11:41:46,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:46,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-16 11:41:46,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 275. [2020-10-16 11:41:46,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2020-10-16 11:41:46,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 734 transitions. [2020-10-16 11:41:46,373 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 734 transitions. Word has length 6 [2020-10-16 11:41:46,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:46,374 INFO L481 AbstractCegarLoop]: Abstraction has 275 states and 734 transitions. [2020-10-16 11:41:46,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:41:46,374 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 734 transitions. [2020-10-16 11:41:46,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 11:41:46,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:46,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:46,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:41:46,376 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:46,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:46,377 INFO L82 PathProgramCache]: Analyzing trace with hash 128013856, now seen corresponding path program 1 times [2020-10-16 11:41:46,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:46,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535620438] [2020-10-16 11:41:46,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:46,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:46,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535620438] [2020-10-16 11:41:46,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:46,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:41:46,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412950521] [2020-10-16 11:41:46,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:41:46,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:46,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:41:46,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:46,475 INFO L87 Difference]: Start difference. First operand 275 states and 734 transitions. Second operand 3 states. [2020-10-16 11:41:46,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:46,504 INFO L93 Difference]: Finished difference Result 266 states and 691 transitions. [2020-10-16 11:41:46,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:41:46,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 11:41:46,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:46,507 INFO L225 Difference]: With dead ends: 266 [2020-10-16 11:41:46,507 INFO L226 Difference]: Without dead ends: 188 [2020-10-16 11:41:46,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:46,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-16 11:41:46,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2020-10-16 11:41:46,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-16 11:41:46,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 495 transitions. [2020-10-16 11:41:46,520 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 495 transitions. Word has length 8 [2020-10-16 11:41:46,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:46,521 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 495 transitions. [2020-10-16 11:41:46,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:41:46,522 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 495 transitions. [2020-10-16 11:41:46,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 11:41:46,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:46,524 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:46,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:41:46,524 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:46,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:46,525 INFO L82 PathProgramCache]: Analyzing trace with hash -53773409, now seen corresponding path program 1 times [2020-10-16 11:41:46,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:46,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344218441] [2020-10-16 11:41:46,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:46,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:46,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344218441] [2020-10-16 11:41:46,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:46,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:41:46,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625265598] [2020-10-16 11:41:46,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:41:46,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:46,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:41:46,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:46,564 INFO L87 Difference]: Start difference. First operand 188 states and 495 transitions. Second operand 3 states. [2020-10-16 11:41:46,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:46,578 INFO L93 Difference]: Finished difference Result 188 states and 485 transitions. [2020-10-16 11:41:46,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:41:46,579 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 11:41:46,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:46,580 INFO L225 Difference]: With dead ends: 188 [2020-10-16 11:41:46,580 INFO L226 Difference]: Without dead ends: 160 [2020-10-16 11:41:46,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:46,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-16 11:41:46,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-10-16 11:41:46,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-10-16 11:41:46,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 409 transitions. [2020-10-16 11:41:46,589 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 409 transitions. Word has length 11 [2020-10-16 11:41:46,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:46,589 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 409 transitions. [2020-10-16 11:41:46,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:41:46,590 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 409 transitions. [2020-10-16 11:41:46,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 11:41:46,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:46,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:46,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:41:46,592 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:46,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:46,592 INFO L82 PathProgramCache]: Analyzing trace with hash -214374855, now seen corresponding path program 2 times [2020-10-16 11:41:46,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:46,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148172823] [2020-10-16 11:41:46,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:46,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:46,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148172823] [2020-10-16 11:41:46,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:46,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:41:46,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850291074] [2020-10-16 11:41:46,637 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:41:46,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:46,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:41:46,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:46,638 INFO L87 Difference]: Start difference. First operand 160 states and 409 transitions. Second operand 3 states. [2020-10-16 11:41:46,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:46,648 INFO L93 Difference]: Finished difference Result 110 states and 320 transitions. [2020-10-16 11:41:46,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:41:46,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 11:41:46,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:46,649 INFO L225 Difference]: With dead ends: 110 [2020-10-16 11:41:46,649 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:41:46,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:46,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:41:46,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:41:46,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:41:46,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:41:46,651 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-10-16 11:41:46,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:46,651 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:41:46,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:41:46,652 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:41:46,652 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:41:46,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:41:46,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:41:46 BasicIcfg [2020-10-16 11:41:46,656 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:41:46,659 INFO L168 Benchmark]: Toolchain (without parser) took 3381.82 ms. Allocated memory was 140.5 MB in the beginning and 245.4 MB in the end (delta: 104.9 MB). Free memory was 101.9 MB in the beginning and 169.4 MB in the end (delta: -67.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:46,659 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:41:46,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.68 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.7 MB in the beginning and 162.5 MB in the end (delta: -60.8 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:46,661 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.46 ms. Allocated memory is still 203.4 MB. Free memory was 162.5 MB in the beginning and 160.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:46,662 INFO L168 Benchmark]: Boogie Preprocessor took 33.75 ms. Allocated memory is still 203.4 MB. Free memory was 160.6 MB in the beginning and 159.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:46,663 INFO L168 Benchmark]: RCFGBuilder took 396.23 ms. Allocated memory is still 203.4 MB. Free memory was 159.3 MB in the beginning and 137.2 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:46,664 INFO L168 Benchmark]: TraceAbstraction took 2248.92 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 136.6 MB in the beginning and 169.4 MB in the end (delta: -32.8 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:46,669 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 640.68 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.7 MB in the beginning and 162.5 MB in the end (delta: -60.8 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.46 ms. Allocated memory is still 203.4 MB. Free memory was 162.5 MB in the beginning and 160.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.75 ms. Allocated memory is still 203.4 MB. Free memory was 160.6 MB in the beginning and 159.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 396.23 ms. Allocated memory is still 203.4 MB. Free memory was 159.3 MB in the beginning and 137.2 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2248.92 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 136.6 MB in the beginning and 169.4 MB in the end (delta: -32.8 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 686 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 270 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 74 PlacesBefore, 42 PlacesAfterwards, 82 TransitionsBefore, 47 TransitionsAfterwards, 1428 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 43 TotalNumberOfCompositions, 6034 MoverChecksTotal - PositiveResult [Line: 705]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 690]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 68 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 210 SDtfs, 86 SDslu, 76 SDs, 0 SdLazy, 24 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=389occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 494 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...