/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 03:23:18,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 03:23:18,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 03:23:18,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 03:23:18,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 03:23:18,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 03:23:18,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 03:23:18,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 03:23:18,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 03:23:18,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 03:23:18,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 03:23:18,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 03:23:18,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 03:23:18,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 03:23:18,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 03:23:18,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 03:23:18,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 03:23:18,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 03:23:18,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 03:23:18,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 03:23:18,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 03:23:18,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 03:23:18,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 03:23:18,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 03:23:18,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 03:23:18,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 03:23:18,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 03:23:18,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 03:23:18,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 03:23:18,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 03:23:18,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 03:23:18,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 03:23:18,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 03:23:18,953 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 03:23:18,954 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 03:23:18,954 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 03:23:18,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 03:23:18,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 03:23:18,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 03:23:18,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 03:23:18,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 03:23:18,960 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2020-04-18 03:23:18,977 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 03:23:18,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 03:23:18,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 03:23:18,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 03:23:18,980 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 03:23:18,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 03:23:18,980 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 03:23:18,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 03:23:18,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 03:23:18,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 03:23:18,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 03:23:18,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 03:23:18,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 03:23:18,982 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 03:23:18,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 03:23:18,983 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 03:23:18,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 03:23:18,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 03:23:18,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 03:23:18,985 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 03:23:18,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 03:23:18,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 03:23:18,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 03:23:18,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 03:23:18,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 03:23:18,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 03:23:18,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 03:23:18,992 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 03:23:18,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 03:23:18,993 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 03:23:19,299 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 03:23:19,325 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 03:23:19,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 03:23:19,331 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 03:23:19,331 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 03:23:19,332 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-04-18 03:23:19,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a20935cda/f46da2a8e0484766b3efed49c82ac556/FLAG184384ccc [2020-04-18 03:23:20,012 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 03:23:20,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-04-18 03:23:20,028 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a20935cda/f46da2a8e0484766b3efed49c82ac556/FLAG184384ccc [2020-04-18 03:23:20,230 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a20935cda/f46da2a8e0484766b3efed49c82ac556 [2020-04-18 03:23:20,239 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 03:23:20,256 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 03:23:20,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 03:23:20,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 03:23:20,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 03:23:20,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:23:20" (1/1) ... [2020-04-18 03:23:20,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24826dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:23:20, skipping insertion in model container [2020-04-18 03:23:20,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:23:20" (1/1) ... [2020-04-18 03:23:20,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 03:23:20,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 03:23:20,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 03:23:20,827 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 03:23:20,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 03:23:20,977 INFO L208 MainTranslator]: Completed translation [2020-04-18 03:23:20,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:23:20 WrapperNode [2020-04-18 03:23:20,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 03:23:20,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 03:23:20,979 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 03:23:20,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 03:23:20,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:23:20" (1/1) ... [2020-04-18 03:23:21,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:23:20" (1/1) ... [2020-04-18 03:23:21,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 03:23:21,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 03:23:21,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 03:23:21,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 03:23:21,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:23:20" (1/1) ... [2020-04-18 03:23:21,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:23:20" (1/1) ... [2020-04-18 03:23:21,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:23:20" (1/1) ... [2020-04-18 03:23:21,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:23:20" (1/1) ... [2020-04-18 03:23:21,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:23:20" (1/1) ... [2020-04-18 03:23:21,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:23:20" (1/1) ... [2020-04-18 03:23:21,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:23:20" (1/1) ... [2020-04-18 03:23:21,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 03:23:21,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 03:23:21,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 03:23:21,061 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 03:23:21,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:23:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-04-18 03:23:21,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 03:23:21,145 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-04-18 03:23:21,145 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-04-18 03:23:21,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 03:23:21,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 03:23:21,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 03:23:21,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 03:23:21,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 03:23:21,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 03:23:21,151 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 03:23:22,219 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 03:23:22,219 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-04-18 03:23:22,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:23:22 BoogieIcfgContainer [2020-04-18 03:23:22,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 03:23:22,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 03:23:22,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 03:23:22,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 03:23:22,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:23:20" (1/3) ... [2020-04-18 03:23:22,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5632b421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:23:22, skipping insertion in model container [2020-04-18 03:23:22,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:23:20" (2/3) ... [2020-04-18 03:23:22,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5632b421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:23:22, skipping insertion in model container [2020-04-18 03:23:22,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:23:22" (3/3) ... [2020-04-18 03:23:22,236 INFO L109 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex.i [2020-04-18 03:23:22,249 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 03:23:22,249 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 03:23:22,259 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-04-18 03:23:22,260 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 03:23:22,290 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,291 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,291 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,291 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,291 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,292 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,292 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,292 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,293 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,293 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,293 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,293 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,294 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,294 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,294 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,294 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,295 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,295 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,296 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,296 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,296 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,296 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,296 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,296 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,297 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,297 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,297 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,297 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,298 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,298 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,298 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,298 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,300 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,300 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,309 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,309 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,310 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,310 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,310 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,310 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,311 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,311 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,312 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,313 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,313 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,314 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,314 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,314 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,314 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,314 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 03:23:22,336 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 03:23:22,357 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 03:23:22,357 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 03:23:22,357 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 03:23:22,357 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 03:23:22,357 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 03:23:22,357 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 03:23:22,358 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 03:23:22,358 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 03:23:22,369 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 54 transitions, 113 flow [2020-04-18 03:23:22,398 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 330 states. [2020-04-18 03:23:22,402 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states. [2020-04-18 03:23:22,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 03:23:22,413 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:23:22,415 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 03:23:22,415 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 03:23:22,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:23:22,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1425769677, now seen corresponding path program 1 times [2020-04-18 03:23:22,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:23:22,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274035115] [2020-04-18 03:23:22,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:23:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:23:22,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:23:22,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274035115] [2020-04-18 03:23:22,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:23:22,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 03:23:22,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106359803] [2020-04-18 03:23:22,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 03:23:22,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:23:22,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 03:23:22,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 03:23:22,719 INFO L87 Difference]: Start difference. First operand 330 states. Second operand 3 states. [2020-04-18 03:23:22,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:23:22,784 INFO L93 Difference]: Finished difference Result 330 states and 624 transitions. [2020-04-18 03:23:22,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 03:23:22,786 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-04-18 03:23:22,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:23:22,827 INFO L225 Difference]: With dead ends: 330 [2020-04-18 03:23:22,827 INFO L226 Difference]: Without dead ends: 290 [2020-04-18 03:23:22,830 INFO L678 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 [2020-04-18 03:23:22,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-04-18 03:23:22,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2020-04-18 03:23:22,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-04-18 03:23:22,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 540 transitions. [2020-04-18 03:23:22,915 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 540 transitions. Word has length 21 [2020-04-18 03:23:22,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:23:22,915 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 540 transitions. [2020-04-18 03:23:22,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 03:23:22,916 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 540 transitions. [2020-04-18 03:23:22,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 03:23:22,917 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:23:22,917 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 03:23:22,918 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 03:23:22,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:23:22,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1956425183, now seen corresponding path program 1 times [2020-04-18 03:23:22,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:23:22,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662412856] [2020-04-18 03:23:22,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:23:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:23:22,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:23:22,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662412856] [2020-04-18 03:23:22,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:23:22,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 03:23:22,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294552858] [2020-04-18 03:23:22,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 03:23:22,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:23:22,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 03:23:22,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 03:23:22,980 INFO L87 Difference]: Start difference. First operand 290 states and 540 transitions. Second operand 3 states. [2020-04-18 03:23:23,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:23:23,003 INFO L93 Difference]: Finished difference Result 311 states and 563 transitions. [2020-04-18 03:23:23,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 03:23:23,004 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-04-18 03:23:23,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:23:23,007 INFO L225 Difference]: With dead ends: 311 [2020-04-18 03:23:23,007 INFO L226 Difference]: Without dead ends: 275 [2020-04-18 03:23:23,008 INFO L678 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 [2020-04-18 03:23:23,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-04-18 03:23:23,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 245. [2020-04-18 03:23:23,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-04-18 03:23:23,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 449 transitions. [2020-04-18 03:23:23,042 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 449 transitions. Word has length 25 [2020-04-18 03:23:23,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:23:23,042 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 449 transitions. [2020-04-18 03:23:23,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 03:23:23,043 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 449 transitions. [2020-04-18 03:23:23,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 03:23:23,047 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:23:23,049 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 03:23:23,050 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 03:23:23,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:23:23,050 INFO L82 PathProgramCache]: Analyzing trace with hash 285892168, now seen corresponding path program 1 times [2020-04-18 03:23:23,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:23:23,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256967166] [2020-04-18 03:23:23,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:23:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:23:23,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:23:23,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256967166] [2020-04-18 03:23:23,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:23:23,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 03:23:23,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313665169] [2020-04-18 03:23:23,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 03:23:23,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:23:23,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 03:23:23,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 03:23:23,109 INFO L87 Difference]: Start difference. First operand 245 states and 449 transitions. Second operand 3 states. [2020-04-18 03:23:23,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:23:23,126 INFO L93 Difference]: Finished difference Result 233 states and 411 transitions. [2020-04-18 03:23:23,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 03:23:23,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-04-18 03:23:23,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:23:23,128 INFO L225 Difference]: With dead ends: 233 [2020-04-18 03:23:23,128 INFO L226 Difference]: Without dead ends: 143 [2020-04-18 03:23:23,128 INFO L678 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 [2020-04-18 03:23:23,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-04-18 03:23:23,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2020-04-18 03:23:23,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-04-18 03:23:23,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 233 transitions. [2020-04-18 03:23:23,137 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 233 transitions. Word has length 25 [2020-04-18 03:23:23,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:23:23,138 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 233 transitions. [2020-04-18 03:23:23,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 03:23:23,138 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 233 transitions. [2020-04-18 03:23:23,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-04-18 03:23:23,140 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:23:23,140 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 03:23:23,141 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 03:23:23,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:23:23,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1623503935, now seen corresponding path program 1 times [2020-04-18 03:23:23,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:23:23,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599302988] [2020-04-18 03:23:23,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:23:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:23:23,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:23:23,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599302988] [2020-04-18 03:23:23,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:23:23,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 03:23:23,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124393099] [2020-04-18 03:23:23,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 03:23:23,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:23:23,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 03:23:23,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-04-18 03:23:23,377 INFO L87 Difference]: Start difference. First operand 143 states and 233 transitions. Second operand 7 states. [2020-04-18 03:23:23,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:23:23,545 INFO L93 Difference]: Finished difference Result 137 states and 218 transitions. [2020-04-18 03:23:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 03:23:23,546 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-04-18 03:23:23,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:23:23,547 INFO L225 Difference]: With dead ends: 137 [2020-04-18 03:23:23,547 INFO L226 Difference]: Without dead ends: 125 [2020-04-18 03:23:23,548 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-04-18 03:23:23,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-04-18 03:23:23,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-04-18 03:23:23,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-04-18 03:23:23,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 197 transitions. [2020-04-18 03:23:23,557 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 197 transitions. Word has length 33 [2020-04-18 03:23:23,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:23:23,557 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 197 transitions. [2020-04-18 03:23:23,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 03:23:23,558 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 197 transitions. [2020-04-18 03:23:23,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-04-18 03:23:23,559 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 03:23:23,560 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 03:23:23,560 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 03:23:23,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 03:23:23,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1318346611, now seen corresponding path program 2 times [2020-04-18 03:23:23,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 03:23:23,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530629648] [2020-04-18 03:23:23,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 03:23:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 03:23:23,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 03:23:23,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530629648] [2020-04-18 03:23:23,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 03:23:23,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 03:23:23,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206643156] [2020-04-18 03:23:23,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 03:23:23,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 03:23:23,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 03:23:23,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 03:23:23,614 INFO L87 Difference]: Start difference. First operand 125 states and 197 transitions. Second operand 3 states. [2020-04-18 03:23:23,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 03:23:23,618 INFO L93 Difference]: Finished difference Result 72 states and 113 transitions. [2020-04-18 03:23:23,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 03:23:23,619 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-04-18 03:23:23,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 03:23:23,620 INFO L225 Difference]: With dead ends: 72 [2020-04-18 03:23:23,620 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 03:23:23,623 INFO L678 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 [2020-04-18 03:23:23,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 03:23:23,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 03:23:23,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 03:23:23,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 03:23:23,624 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2020-04-18 03:23:23,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 03:23:23,625 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 03:23:23,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 03:23:23,630 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 03:23:23,630 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 03:23:23,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:23:23 BasicIcfg [2020-04-18 03:23:23,638 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 03:23:23,643 INFO L168 Benchmark]: Toolchain (without parser) took 3399.22 ms. Allocated memory was 143.7 MB in the beginning and 231.2 MB in the end (delta: 87.6 MB). Free memory was 100.7 MB in the beginning and 87.5 MB in the end (delta: 13.2 MB). Peak memory consumption was 100.8 MB. Max. memory is 7.1 GB. [2020-04-18 03:23:23,644 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-04-18 03:23:23,646 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.07 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 98.7 MB in the beginning and 159.8 MB in the end (delta: -61.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-04-18 03:23:23,650 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.98 ms. Allocated memory is still 201.3 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 03:23:23,651 INFO L168 Benchmark]: Boogie Preprocessor took 28.03 ms. Allocated memory is still 201.3 MB. Free memory was 157.8 MB in the beginning and 155.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 03:23:23,653 INFO L168 Benchmark]: RCFGBuilder took 1163.99 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 155.7 MB in the beginning and 185.5 MB in the end (delta: -29.8 MB). Peak memory consumption was 76.7 MB. Max. memory is 7.1 GB. [2020-04-18 03:23:23,654 INFO L168 Benchmark]: TraceAbstraction took 1412.37 ms. Allocated memory is still 231.2 MB. Free memory was 184.1 MB in the beginning and 87.5 MB in the end (delta: 96.6 MB). Peak memory consumption was 96.6 MB. Max. memory is 7.1 GB. [2020-04-18 03:23:23,662 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 721.07 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 98.7 MB in the beginning and 159.8 MB in the end (delta: -61.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.98 ms. Allocated memory is still 201.3 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.03 ms. Allocated memory is still 201.3 MB. Free memory was 157.8 MB in the beginning and 155.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1163.99 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 155.7 MB in the beginning and 185.5 MB in the end (delta: -29.8 MB). Peak memory consumption was 76.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1412.37 ms. Allocated memory is still 231.2 MB. Free memory was 184.1 MB in the beginning and 87.5 MB in the end (delta: 96.6 MB). Peak memory consumption was 96.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 711]: 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, 51 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 247 SDtfs, 218 SDslu, 200 SDs, 0 SdLazy, 62 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=330occurred 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, 30 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 7632 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...