/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 23:53:02,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 23:53:02,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 23:53:02,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 23:53:02,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 23:53:02,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 23:53:02,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 23:53:02,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 23:53:02,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 23:53:02,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 23:53:02,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 23:53:02,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 23:53:02,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 23:53:02,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 23:53:02,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 23:53:02,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 23:53:02,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 23:53:02,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 23:53:02,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 23:53:02,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 23:53:02,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 23:53:02,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 23:53:02,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 23:53:02,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 23:53:02,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-15 23:53:02,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-15 23:53:02,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-15 23:53:02,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-15 23:53:02,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-15 23:53:02,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-15 23:53:02,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-15 23:53:02,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-15 23:53:02,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-15 23:53:02,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 23:53:02,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 23:53:02,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 23:53:02,999 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-15 23:53:03,051 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 23:53:03,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 23:53:03,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 23:53:03,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 23:53:03,054 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 23:53:03,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 23:53:03,055 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 23:53:03,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 23:53:03,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 23:53:03,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 23:53:03,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 23:53:03,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 23:53:03,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 23:53:03,057 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 23:53:03,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 23:53:03,058 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 23:53:03,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 23:53:03,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 23:53:03,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 23:53:03,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 23:53:03,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 23:53:03,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 23:53:03,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 23:53:03,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-15 23:53:03,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 23:53:03,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 23:53:03,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 23:53:03,060 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-15 23:53:03,060 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-15 23:53:03,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 23:53:03,060 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-15 23:53:03,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 23:53:03,537 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 23:53:03,542 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 23:53:03,544 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 23:53:03,544 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 23:53:03,546 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc.i [2020-09-15 23:53:03,618 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e46055dd5/6944646928a04536b1fd4f6a155213cb/FLAG801530304 [2020-09-15 23:53:04,225 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 23:53:04,226 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc.i [2020-09-15 23:53:04,248 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e46055dd5/6944646928a04536b1fd4f6a155213cb/FLAG801530304 [2020-09-15 23:53:04,464 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e46055dd5/6944646928a04536b1fd4f6a155213cb [2020-09-15 23:53:04,478 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 23:53:04,484 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 23:53:04,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 23:53:04,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 23:53:04,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 23:53:04,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:53:04" (1/1) ... [2020-09-15 23:53:04,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d05d4fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:53:04, skipping insertion in model container [2020-09-15 23:53:04,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:53:04" (1/1) ... [2020-09-15 23:53:04,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 23:53:04,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 23:53:04,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 23:53:04,989 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 23:53:05,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 23:53:05,262 INFO L208 MainTranslator]: Completed translation [2020-09-15 23:53:05,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:53:05 WrapperNode [2020-09-15 23:53:05,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 23:53:05,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 23:53:05,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 23:53:05,265 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 23:53:05,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:53:05" (1/1) ... [2020-09-15 23:53:05,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:53:05" (1/1) ... [2020-09-15 23:53:05,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 23:53:05,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 23:53:05,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 23:53:05,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 23:53:05,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:53:05" (1/1) ... [2020-09-15 23:53:05,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:53:05" (1/1) ... [2020-09-15 23:53:05,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:53:05" (1/1) ... [2020-09-15 23:53:05,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:53:05" (1/1) ... [2020-09-15 23:53:05,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:53:05" (1/1) ... [2020-09-15 23:53:05,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:53:05" (1/1) ... [2020-09-15 23:53:05,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:53:05" (1/1) ... [2020-09-15 23:53:05,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 23:53:05,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 23:53:05,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 23:53:05,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 23:53:05,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:53:05" (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 [2020-09-15 23:53:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 23:53:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-15 23:53:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 23:53:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 23:53:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-15 23:53:05,446 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-15 23:53:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-15 23:53:05,446 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-15 23:53:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-15 23:53:05,447 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-15 23:53:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-15 23:53:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 23:53:05,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 23:53:05,450 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 23:53:05,871 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 23:53:05,871 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-15 23:53:05,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:53:05 BoogieIcfgContainer [2020-09-15 23:53:05,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 23:53:05,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 23:53:05,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 23:53:05,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 23:53:05,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:53:04" (1/3) ... [2020-09-15 23:53:05,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc932f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:53:05, skipping insertion in model container [2020-09-15 23:53:05,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:53:05" (2/3) ... [2020-09-15 23:53:05,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc932f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:53:05, skipping insertion in model container [2020-09-15 23:53:05,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:53:05" (3/3) ... [2020-09-15 23:53:05,887 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_pso.oepc.i [2020-09-15 23:53:05,899 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 23:53:05,899 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-15 23:53:05,910 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-15 23:53:05,911 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 23:53:05,942 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,942 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,943 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,943 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,944 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,945 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,945 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,946 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,946 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,947 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,947 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,947 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,948 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,952 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,953 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,953 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,953 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,967 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,967 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,968 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,968 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,971 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,972 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:05,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 23:53:06,003 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-15 23:53:06,032 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 23:53:06,032 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 23:53:06,032 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-15 23:53:06,032 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-15 23:53:06,033 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 23:53:06,033 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 23:53:06,033 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 23:53:06,033 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 23:53:06,052 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-09-15 23:53:06,055 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-15 23:53:06,110 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-15 23:53:06,111 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 23:53:06,117 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-09-15 23:53:06,120 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-15 23:53:06,141 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-15 23:53:06,141 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 23:53:06,142 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-09-15 23:53:06,144 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-09-15 23:53:06,145 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-15 23:53:07,698 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1996 [2020-09-15 23:53:07,699 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-09-15 23:53:07,704 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-09-15 23:53:07,739 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-09-15 23:53:07,742 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-09-15 23:53:07,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-15 23:53:07,754 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:53:07,756 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:53:07,756 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:53:07,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:53:07,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1153400973, now seen corresponding path program 1 times [2020-09-15 23:53:07,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:53:07,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416947823] [2020-09-15 23:53:07,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:53:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:53:08,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:53:08,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416947823] [2020-09-15 23:53:08,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:53:08,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-15 23:53:08,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1283207804] [2020-09-15 23:53:08,069 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:53:08,072 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:53:08,090 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-15 23:53:08,090 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:53:08,093 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:53:08,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 23:53:08,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:53:08,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 23:53:08,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 23:53:08,116 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-09-15 23:53:08,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:53:08,152 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-09-15 23:53:08,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 23:53:08,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-15 23:53:08,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:53:08,173 INFO L225 Difference]: With dead ends: 214 [2020-09-15 23:53:08,173 INFO L226 Difference]: Without dead ends: 166 [2020-09-15 23:53:08,175 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 [2020-09-15 23:53:08,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-15 23:53:08,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-09-15 23:53:08,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-09-15 23:53:08,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-09-15 23:53:08,250 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-09-15 23:53:08,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:53:08,251 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-09-15 23:53:08,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 23:53:08,252 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-09-15 23:53:08,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-15 23:53:08,253 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:53:08,253 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:53:08,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 23:53:08,254 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:53:08,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:53:08,254 INFO L82 PathProgramCache]: Analyzing trace with hash 837018342, now seen corresponding path program 1 times [2020-09-15 23:53:08,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:53:08,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133724561] [2020-09-15 23:53:08,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:53:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:53:08,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:53:08,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133724561] [2020-09-15 23:53:08,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:53:08,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:53:08,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1380542602] [2020-09-15 23:53:08,437 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:53:08,438 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:53:08,440 INFO L274 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions. [2020-09-15 23:53:08,441 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:53:08,499 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:53:08,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:53:08,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:53:08,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:53:08,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:53:08,502 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-09-15 23:53:08,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:53:08,546 INFO L93 Difference]: Finished difference Result 184 states and 465 transitions. [2020-09-15 23:53:08,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 23:53:08,549 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-15 23:53:08,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:53:08,551 INFO L225 Difference]: With dead ends: 184 [2020-09-15 23:53:08,551 INFO L226 Difference]: Without dead ends: 88 [2020-09-15 23:53:08,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:53:08,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-15 23:53:08,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-09-15 23:53:08,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-09-15 23:53:08,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 207 transitions. [2020-09-15 23:53:08,566 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 207 transitions. Word has length 9 [2020-09-15 23:53:08,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:53:08,567 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 207 transitions. [2020-09-15 23:53:08,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:53:08,567 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 207 transitions. [2020-09-15 23:53:08,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-15 23:53:08,568 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:53:08,568 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:53:08,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 23:53:08,569 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:53:08,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:53:08,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1248093964, now seen corresponding path program 1 times [2020-09-15 23:53:08,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:53:08,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711163264] [2020-09-15 23:53:08,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:53:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:53:08,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:53:08,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711163264] [2020-09-15 23:53:08,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:53:08,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:53:08,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1847722410] [2020-09-15 23:53:08,637 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:53:08,639 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:53:08,641 INFO L274 McrAutomatonBuilder]: Finished intersection with 15 states and 17 transitions. [2020-09-15 23:53:08,641 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:53:08,655 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:53:08,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:53:08,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:53:08,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:53:08,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:53:08,657 INFO L87 Difference]: Start difference. First operand 88 states and 207 transitions. Second operand 4 states. [2020-09-15 23:53:08,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:53:08,681 INFO L93 Difference]: Finished difference Result 118 states and 268 transitions. [2020-09-15 23:53:08,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 23:53:08,682 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-15 23:53:08,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:53:08,683 INFO L225 Difference]: With dead ends: 118 [2020-09-15 23:53:08,683 INFO L226 Difference]: Without dead ends: 64 [2020-09-15 23:53:08,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:53:08,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-15 23:53:08,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-09-15 23:53:08,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-09-15 23:53:08,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 137 transitions. [2020-09-15 23:53:08,691 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 137 transitions. Word has length 11 [2020-09-15 23:53:08,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:53:08,692 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 137 transitions. [2020-09-15 23:53:08,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:53:08,692 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 137 transitions. [2020-09-15 23:53:08,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-15 23:53:08,693 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:53:08,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:53:08,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 23:53:08,693 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:53:08,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:53:08,694 INFO L82 PathProgramCache]: Analyzing trace with hash 500064419, now seen corresponding path program 1 times [2020-09-15 23:53:08,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:53:08,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054048618] [2020-09-15 23:53:08,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:53:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:53:08,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:53:08,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054048618] [2020-09-15 23:53:08,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:53:08,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 23:53:08,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1007032045] [2020-09-15 23:53:08,801 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:53:08,804 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:53:08,806 INFO L274 McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions. [2020-09-15 23:53:08,806 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:53:08,845 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:53:08,873 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:53:08,890 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:53:08,907 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:53:08,921 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1703#(not (= 3 ~__unbuffered_cnt~0))] [2020-09-15 23:53:08,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-15 23:53:08,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:53:08,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-15 23:53:08,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:53:08,923 INFO L87 Difference]: Start difference. First operand 64 states and 137 transitions. Second operand 5 states. [2020-09-15 23:53:09,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:53:09,003 INFO L93 Difference]: Finished difference Result 63 states and 119 transitions. [2020-09-15 23:53:09,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 23:53:09,004 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-15 23:53:09,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:53:09,005 INFO L225 Difference]: With dead ends: 63 [2020-09-15 23:53:09,005 INFO L226 Difference]: Without dead ends: 42 [2020-09-15 23:53:09,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-15 23:53:09,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-15 23:53:09,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-15 23:53:09,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-15 23:53:09,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 69 transitions. [2020-09-15 23:53:09,010 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 69 transitions. Word has length 12 [2020-09-15 23:53:09,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:53:09,011 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 69 transitions. [2020-09-15 23:53:09,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-15 23:53:09,011 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 69 transitions. [2020-09-15 23:53:09,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-15 23:53:09,012 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:53:09,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:53:09,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-15 23:53:09,012 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:53:09,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:53:09,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1451530590, now seen corresponding path program 1 times [2020-09-15 23:53:09,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:53:09,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107821844] [2020-09-15 23:53:09,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:53:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:53:09,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:53:09,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107821844] [2020-09-15 23:53:09,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:53:09,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-15 23:53:09,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1557677672] [2020-09-15 23:53:09,127 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:53:09,128 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:53:09,132 INFO L274 McrAutomatonBuilder]: Finished intersection with 24 states and 32 transitions. [2020-09-15 23:53:09,132 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:53:09,144 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-15 23:53:09,238 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [1861#(not (= 3 ~__unbuffered_cnt~0)), 1862#(not (= ~__unbuffered_cnt~0 2)), 1863#(not (= ~__unbuffered_cnt~0 1)), 1864#(<= ~__unbuffered_cnt~0 0)] [2020-09-15 23:53:09,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-15 23:53:09,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:53:09,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-15 23:53:09,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-15 23:53:09,240 INFO L87 Difference]: Start difference. First operand 42 states and 69 transitions. Second operand 10 states. [2020-09-15 23:53:09,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:53:09,351 INFO L93 Difference]: Finished difference Result 39 states and 61 transitions. [2020-09-15 23:53:09,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-15 23:53:09,352 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-09-15 23:53:09,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:53:09,353 INFO L225 Difference]: With dead ends: 39 [2020-09-15 23:53:09,353 INFO L226 Difference]: Without dead ends: 33 [2020-09-15 23:53:09,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-09-15 23:53:09,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-15 23:53:09,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-15 23:53:09,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-15 23:53:09,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-09-15 23:53:09,360 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 14 [2020-09-15 23:53:09,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:53:09,367 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-09-15 23:53:09,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-15 23:53:09,367 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-09-15 23:53:09,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-15 23:53:09,368 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 23:53:09,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-15 23:53:09,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-15 23:53:09,368 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 23:53:09,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 23:53:09,369 INFO L82 PathProgramCache]: Analyzing trace with hash -958438309, now seen corresponding path program 1 times [2020-09-15 23:53:09,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 23:53:09,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662551435] [2020-09-15 23:53:09,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 23:53:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 23:53:09,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 23:53:09,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662551435] [2020-09-15 23:53:09,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 23:53:09,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-15 23:53:09,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2056033599] [2020-09-15 23:53:09,429 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 23:53:09,431 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 23:53:09,435 INFO L274 McrAutomatonBuilder]: Finished intersection with 27 states and 36 transitions. [2020-09-15 23:53:09,436 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 23:53:09,468 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 23:53:09,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-15 23:53:09,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 23:53:09,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-15 23:53:09,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-15 23:53:09,470 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2020-09-15 23:53:09,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 23:53:09,482 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-09-15 23:53:09,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-15 23:53:09,483 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-09-15 23:53:09,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 23:53:09,483 INFO L225 Difference]: With dead ends: 32 [2020-09-15 23:53:09,483 INFO L226 Difference]: Without dead ends: 0 [2020-09-15 23:53:09,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-15 23:53:09,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-15 23:53:09,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-15 23:53:09,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-15 23:53:09,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-15 23:53:09,485 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-09-15 23:53:09,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 23:53:09,485 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-15 23:53:09,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-15 23:53:09,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-15 23:53:09,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-15 23:53:09,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-15 23:53:09,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 11:53:09 BasicIcfg [2020-09-15 23:53:09,491 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-15 23:53:09,495 INFO L168 Benchmark]: Toolchain (without parser) took 5013.38 ms. Allocated memory was 148.4 MB in the beginning and 259.5 MB in the end (delta: 111.1 MB). Free memory was 101.8 MB in the beginning and 128.2 MB in the end (delta: -26.5 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. [2020-09-15 23:53:09,496 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 148.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-15 23:53:09,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 779.29 ms. Allocated memory was 148.4 MB in the beginning and 223.9 MB in the end (delta: 75.5 MB). Free memory was 101.1 MB in the beginning and 190.2 MB in the end (delta: -89.2 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-09-15 23:53:09,498 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.57 ms. Allocated memory is still 223.9 MB. Free memory was 190.2 MB in the beginning and 187.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-15 23:53:09,499 INFO L168 Benchmark]: Boogie Preprocessor took 33.31 ms. Allocated memory is still 223.9 MB. Free memory was 187.5 MB in the beginning and 186.6 MB in the end (delta: 906.1 kB). Peak memory consumption was 906.1 kB. Max. memory is 7.1 GB. [2020-09-15 23:53:09,500 INFO L168 Benchmark]: RCFGBuilder took 514.77 ms. Allocated memory is still 223.9 MB. Free memory was 186.6 MB in the beginning and 163.4 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-09-15 23:53:09,501 INFO L168 Benchmark]: TraceAbstraction took 3613.17 ms. Allocated memory was 223.9 MB in the beginning and 259.5 MB in the end (delta: 35.7 MB). Free memory was 162.5 MB in the beginning and 128.2 MB in the end (delta: 34.3 MB). Peak memory consumption was 69.9 MB. Max. memory is 7.1 GB. [2020-09-15 23:53:09,506 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 148.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 779.29 ms. Allocated memory was 148.4 MB in the beginning and 223.9 MB in the end (delta: 75.5 MB). Free memory was 101.1 MB in the beginning and 190.2 MB in the end (delta: -89.2 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 63.57 ms. Allocated memory is still 223.9 MB. Free memory was 190.2 MB in the beginning and 187.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.31 ms. Allocated memory is still 223.9 MB. Free memory was 187.5 MB in the beginning and 186.6 MB in the end (delta: 906.1 kB). Peak memory consumption was 906.1 kB. Max. memory is 7.1 GB. * RCFGBuilder took 514.77 ms. Allocated memory is still 223.9 MB. Free memory was 186.6 MB in the beginning and 163.4 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3613.17 ms. Allocated memory was 223.9 MB in the beginning and 259.5 MB in the end (delta: 35.7 MB). Free memory was 162.5 MB in the beginning and 128.2 MB in the end (delta: 34.3 MB). Peak memory consumption was 69.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 77 ProgramPointsBefore, 30 ProgramPointsAfterwards, 69 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 610 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1996 CheckedPairsTotal, 58 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 93 SDtfs, 104 SDslu, 126 SDs, 0 SdLazy, 101 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 2328 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...