/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 12:11:23,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 12:11:23,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 12:11:23,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 12:11:23,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 12:11:23,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 12:11:23,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 12:11:23,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 12:11:23,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 12:11:23,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 12:11:23,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 12:11:23,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 12:11:23,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 12:11:23,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 12:11:23,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 12:11:23,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 12:11:23,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 12:11:23,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 12:11:23,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 12:11:23,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 12:11:23,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 12:11:23,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 12:11:23,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 12:11:23,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 12:11:23,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 12:11:23,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 12:11:23,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 12:11:23,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 12:11:23,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 12:11:23,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 12:11:23,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 12:11:23,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 12:11:23,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 12:11:23,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 12:11:23,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 12:11:23,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 12:11:23,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 12:11:23,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 12:11:23,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 12:11:23,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 12:11:23,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 12:11:23,888 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-11 12:11:23,938 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 12:11:23,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 12:11:23,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 12:11:23,941 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 12:11:23,941 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 12:11:23,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 12:11:23,941 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 12:11:23,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 12:11:23,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 12:11:23,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 12:11:23,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 12:11:23,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 12:11:23,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 12:11:23,945 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 12:11:23,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 12:11:23,946 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 12:11:23,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 12:11:23,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 12:11:23,946 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 12:11:23,947 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 12:11:23,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 12:11:23,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 12:11:23,947 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 12:11:23,947 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-11 12:11:23,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 12:11:23,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 12:11:23,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 12:11:23,948 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 12:11:23,948 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-11 12:11:23,949 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-11 12:11:24,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 12:11:24,463 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 12:11:24,467 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 12:11:24,469 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 12:11:24,469 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 12:11:24,471 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i [2020-09-11 12:11:24,552 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c26abcaeb/75cca1e4564045399f8ed7a09e324307/FLAG1d4220ad5 [2020-09-11 12:11:25,154 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 12:11:25,155 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i [2020-09-11 12:11:25,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c26abcaeb/75cca1e4564045399f8ed7a09e324307/FLAG1d4220ad5 [2020-09-11 12:11:25,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c26abcaeb/75cca1e4564045399f8ed7a09e324307 [2020-09-11 12:11:25,436 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 12:11:25,442 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 12:11:25,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 12:11:25,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 12:11:25,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 12:11:25,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 12:11:25" (1/1) ... [2020-09-11 12:11:25,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@346213aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:11:25, skipping insertion in model container [2020-09-11 12:11:25,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 12:11:25" (1/1) ... [2020-09-11 12:11:25,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 12:11:25,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 12:11:26,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 12:11:26,066 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 12:11:26,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 12:11:26,232 INFO L208 MainTranslator]: Completed translation [2020-09-11 12:11:26,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:11:26 WrapperNode [2020-09-11 12:11:26,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 12:11:26,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 12:11:26,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 12:11:26,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 12:11:26,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:11:26" (1/1) ... [2020-09-11 12:11:26,265 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:11:26" (1/1) ... [2020-09-11 12:11:26,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 12:11:26,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 12:11:26,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 12:11:26,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 12:11:26,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:11:26" (1/1) ... [2020-09-11 12:11:26,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:11:26" (1/1) ... [2020-09-11 12:11:26,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:11:26" (1/1) ... [2020-09-11 12:11:26,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:11:26" (1/1) ... [2020-09-11 12:11:26,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:11:26" (1/1) ... [2020-09-11 12:11:26,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:11:26" (1/1) ... [2020-09-11 12:11:26,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:11:26" (1/1) ... [2020-09-11 12:11:26,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 12:11:26,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 12:11:26,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 12:11:26,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 12:11:26,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:11:26" (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 [2020-09-11 12:11:26,418 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-09-11 12:11:26,419 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-09-11 12:11:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 12:11:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 12:11:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 12:11:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 12:11:26,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 12:11:26,422 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 12:11:27,141 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 12:11:27,141 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-09-11 12:11:27,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 12:11:27 BoogieIcfgContainer [2020-09-11 12:11:27,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 12:11:27,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 12:11:27,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 12:11:27,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 12:11:27,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 12:11:25" (1/3) ... [2020-09-11 12:11:27,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a77391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 12:11:27, skipping insertion in model container [2020-09-11 12:11:27,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 12:11:26" (2/3) ... [2020-09-11 12:11:27,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a77391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 12:11:27, skipping insertion in model container [2020-09-11 12:11:27,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 12:11:27" (3/3) ... [2020-09-11 12:11:27,155 INFO L109 eAbstractionObserver]: Analyzing ICFG 23_lu-fig2.fixed.i [2020-09-11 12:11:27,167 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 12:11:27,168 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-11 12:11:27,179 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-09-11 12:11:27,180 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 12:11:27,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,207 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,208 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,208 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,209 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,210 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,210 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,214 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,215 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,216 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,216 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,216 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,216 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,217 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 12:11:27,241 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-11 12:11:27,265 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 12:11:27,265 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 12:11:27,265 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-11 12:11:27,266 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-11 12:11:27,266 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 12:11:27,266 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 12:11:27,266 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 12:11:27,266 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 12:11:27,281 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 43 transitions, 91 flow [2020-09-11 12:11:27,283 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 45 places, 43 transitions, 91 flow [2020-09-11 12:11:27,316 INFO L129 PetriNetUnfolder]: 2/42 cut-off events. [2020-09-11 12:11:27,316 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 12:11:27,321 INFO L80 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 42 events. 2/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2020-09-11 12:11:27,323 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 45 places, 43 transitions, 91 flow [2020-09-11 12:11:27,335 INFO L129 PetriNetUnfolder]: 2/42 cut-off events. [2020-09-11 12:11:27,336 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 12:11:27,337 INFO L80 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 42 events. 2/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2020-09-11 12:11:27,338 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 378 [2020-09-11 12:11:27,354 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-11 12:11:28,552 INFO L206 etLargeBlockEncoding]: Checked pairs total: 692 [2020-09-11 12:11:28,552 INFO L214 etLargeBlockEncoding]: Total number of compositions: 31 [2020-09-11 12:11:28,557 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 14 transitions, 33 flow [2020-09-11 12:11:28,570 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 38 states. [2020-09-11 12:11:28,572 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-09-11 12:11:28,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-09-11 12:11:28,581 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 12:11:28,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-09-11 12:11:28,583 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 12:11:28,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 12:11:28,591 INFO L82 PathProgramCache]: Analyzing trace with hash 10713486, now seen corresponding path program 1 times [2020-09-11 12:11:28,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 12:11:28,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298271469] [2020-09-11 12:11:28,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 12:11:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 12:11:28,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 12:11:28,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298271469] [2020-09-11 12:11:28,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 12:11:28,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 12:11:28,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795737251] [2020-09-11 12:11:28,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 12:11:28,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 12:11:28,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 12:11:28,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 12:11:28,850 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 3 states. [2020-09-11 12:11:28,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 12:11:28,888 INFO L93 Difference]: Finished difference Result 29 states and 50 transitions. [2020-09-11 12:11:28,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 12:11:28,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-09-11 12:11:28,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 12:11:28,902 INFO L225 Difference]: With dead ends: 29 [2020-09-11 12:11:28,902 INFO L226 Difference]: Without dead ends: 22 [2020-09-11 12:11:28,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 12:11:28,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-11 12:11:28,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-11 12:11:28,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-11 12:11:28,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 38 transitions. [2020-09-11 12:11:28,949 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 38 transitions. Word has length 4 [2020-09-11 12:11:28,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 12:11:28,950 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 38 transitions. [2020-09-11 12:11:28,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 12:11:28,950 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 38 transitions. [2020-09-11 12:11:28,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-09-11 12:11:28,951 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 12:11:28,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-09-11 12:11:28,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 12:11:28,952 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 12:11:28,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 12:11:28,952 INFO L82 PathProgramCache]: Analyzing trace with hash 332126608, now seen corresponding path program 1 times [2020-09-11 12:11:28,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 12:11:28,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895207819] [2020-09-11 12:11:28,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 12:11:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 12:11:29,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 12:11:29,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895207819] [2020-09-11 12:11:29,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 12:11:29,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 12:11:29,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453474764] [2020-09-11 12:11:29,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 12:11:29,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 12:11:29,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 12:11:29,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 12:11:29,011 INFO L87 Difference]: Start difference. First operand 22 states and 38 transitions. Second operand 3 states. [2020-09-11 12:11:29,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 12:11:29,024 INFO L93 Difference]: Finished difference Result 21 states and 35 transitions. [2020-09-11 12:11:29,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 12:11:29,025 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-09-11 12:11:29,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 12:11:29,025 INFO L225 Difference]: With dead ends: 21 [2020-09-11 12:11:29,026 INFO L226 Difference]: Without dead ends: 18 [2020-09-11 12:11:29,027 INFO L675 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 [2020-09-11 12:11:29,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-09-11 12:11:29,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-09-11 12:11:29,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-09-11 12:11:29,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2020-09-11 12:11:29,031 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 27 transitions. Word has length 5 [2020-09-11 12:11:29,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 12:11:29,031 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 27 transitions. [2020-09-11 12:11:29,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 12:11:29,032 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 27 transitions. [2020-09-11 12:11:29,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-09-11 12:11:29,032 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 12:11:29,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-09-11 12:11:29,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 12:11:29,033 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 12:11:29,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 12:11:29,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1337957644, now seen corresponding path program 1 times [2020-09-11 12:11:29,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 12:11:29,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917861073] [2020-09-11 12:11:29,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 12:11:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 12:11:29,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 12:11:29,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917861073] [2020-09-11 12:11:29,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 12:11:29,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 12:11:29,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515995472] [2020-09-11 12:11:29,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 12:11:29,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 12:11:29,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 12:11:29,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 12:11:29,110 INFO L87 Difference]: Start difference. First operand 18 states and 27 transitions. Second operand 4 states. [2020-09-11 12:11:29,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 12:11:29,142 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2020-09-11 12:11:29,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 12:11:29,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-09-11 12:11:29,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 12:11:29,143 INFO L225 Difference]: With dead ends: 14 [2020-09-11 12:11:29,143 INFO L226 Difference]: Without dead ends: 14 [2020-09-11 12:11:29,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 12:11:29,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-09-11 12:11:29,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-09-11 12:11:29,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-09-11 12:11:29,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2020-09-11 12:11:29,147 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 19 transitions. Word has length 7 [2020-09-11 12:11:29,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 12:11:29,148 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 19 transitions. [2020-09-11 12:11:29,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 12:11:29,148 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2020-09-11 12:11:29,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-11 12:11:29,149 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 12:11:29,149 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 12:11:29,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 12:11:29,149 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 12:11:29,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 12:11:29,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1550853615, now seen corresponding path program 1 times [2020-09-11 12:11:29,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 12:11:29,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208863065] [2020-09-11 12:11:29,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 12:11:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 12:11:29,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 12:11:29,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208863065] [2020-09-11 12:11:29,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 12:11:29,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 12:11:29,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311198782] [2020-09-11 12:11:29,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 12:11:29,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 12:11:29,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 12:11:29,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 12:11:29,236 INFO L87 Difference]: Start difference. First operand 14 states and 19 transitions. Second operand 4 states. [2020-09-11 12:11:29,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 12:11:29,241 INFO L93 Difference]: Finished difference Result 13 states and 18 transitions. [2020-09-11 12:11:29,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 12:11:29,242 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-11 12:11:29,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 12:11:29,242 INFO L225 Difference]: With dead ends: 13 [2020-09-11 12:11:29,242 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 12:11:29,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 12:11:29,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 12:11:29,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 12:11:29,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 12:11:29,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 12:11:29,244 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-09-11 12:11:29,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 12:11:29,244 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 12:11:29,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 12:11:29,245 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 12:11:29,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 12:11:29,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 12:11:29,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 12:11:29 BasicIcfg [2020-09-11 12:11:29,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 12:11:29,253 INFO L168 Benchmark]: Toolchain (without parser) took 3814.12 ms. Allocated memory was 143.1 MB in the beginning and 243.3 MB in the end (delta: 100.1 MB). Free memory was 103.9 MB in the beginning and 133.0 MB in the end (delta: -29.2 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. [2020-09-11 12:11:29,254 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 143.1 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 12:11:29,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 789.95 ms. Allocated memory was 143.1 MB in the beginning and 205.5 MB in the end (delta: 62.4 MB). Free memory was 103.2 MB in the beginning and 164.8 MB in the end (delta: -61.5 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-09-11 12:11:29,256 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.94 ms. Allocated memory is still 205.5 MB. Free memory was 164.8 MB in the beginning and 162.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-11 12:11:29,257 INFO L168 Benchmark]: Boogie Preprocessor took 35.31 ms. Allocated memory is still 205.5 MB. Free memory was 162.2 MB in the beginning and 161.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. [2020-09-11 12:11:29,258 INFO L168 Benchmark]: RCFGBuilder took 817.20 ms. Allocated memory is still 205.5 MB. Free memory was 161.0 MB in the beginning and 113.2 MB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 7.1 GB. [2020-09-11 12:11:29,259 INFO L168 Benchmark]: TraceAbstraction took 2102.81 ms. Allocated memory was 205.5 MB in the beginning and 243.3 MB in the end (delta: 37.7 MB). Free memory was 113.2 MB in the beginning and 133.0 MB in the end (delta: -19.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. [2020-09-11 12:11:29,263 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 143.1 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 789.95 ms. Allocated memory was 143.1 MB in the beginning and 205.5 MB in the end (delta: 62.4 MB). Free memory was 103.2 MB in the beginning and 164.8 MB in the end (delta: -61.5 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.94 ms. Allocated memory is still 205.5 MB. Free memory was 164.8 MB in the beginning and 162.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.31 ms. Allocated memory is still 205.5 MB. Free memory was 162.2 MB in the beginning and 161.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 817.20 ms. Allocated memory is still 205.5 MB. Free memory was 161.0 MB in the beginning and 113.2 MB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2102.81 ms. Allocated memory was 205.5 MB in the beginning and 243.3 MB in the end (delta: 37.7 MB). Free memory was 113.2 MB in the beginning and 133.0 MB in the end (delta: -19.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.2s, 45 ProgramPointsBefore, 17 ProgramPointsAfterwards, 43 TransitionsBefore, 14 TransitionsAfterwards, 378 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 192 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 26 SemBasedMoverChecksPositive, 21 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 692 CheckedPairsTotal, 31 TotalNumberOfCompositions - PositiveResult [Line: 696]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 710]: 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 2 procedures, 42 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 39 SDtfs, 19 SDslu, 20 SDs, 0 SdLazy, 24 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 459 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...