/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 08:07:01,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 08:07:01,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 08:07:01,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 08:07:01,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 08:07:01,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 08:07:01,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 08:07:01,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 08:07:01,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 08:07:01,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 08:07:01,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 08:07:01,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 08:07:01,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 08:07:01,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 08:07:01,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 08:07:01,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 08:07:01,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 08:07:01,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 08:07:01,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 08:07:01,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 08:07:01,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 08:07:01,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 08:07:01,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 08:07:01,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 08:07:01,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 08:07:01,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 08:07:01,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 08:07:01,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 08:07:01,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 08:07:01,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 08:07:01,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 08:07:01,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 08:07:01,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 08:07:01,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 08:07:01,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 08:07:01,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 08:07:01,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 08:07:01,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 08:07:01,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 08:07:01,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 08:07:01,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 08:07:01,907 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-VariableLbe.epf [2019-12-27 08:07:01,938 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 08:07:01,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 08:07:01,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 08:07:01,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 08:07:01,943 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 08:07:01,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 08:07:01,944 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 08:07:01,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 08:07:01,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 08:07:01,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 08:07:01,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 08:07:01,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 08:07:01,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 08:07:01,945 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 08:07:01,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 08:07:01,945 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 08:07:01,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 08:07:01,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 08:07:01,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 08:07:01,948 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 08:07:01,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 08:07:01,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:07:01,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 08:07:01,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 08:07:01,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 08:07:01,949 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 08:07:01,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 08:07:01,949 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 08:07:01,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 08:07:01,950 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 08:07:02,277 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 08:07:02,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 08:07:02,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 08:07:02,295 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 08:07:02,295 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 08:07:02,296 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2019-12-27 08:07:02,359 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f28524b65/eebc08cc0e02417b98ac856986f5d35a/FLAGd33d53720 [2019-12-27 08:07:02,908 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 08:07:02,909 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2019-12-27 08:07:02,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f28524b65/eebc08cc0e02417b98ac856986f5d35a/FLAGd33d53720 [2019-12-27 08:07:03,201 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f28524b65/eebc08cc0e02417b98ac856986f5d35a [2019-12-27 08:07:03,217 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 08:07:03,219 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 08:07:03,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 08:07:03,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 08:07:03,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 08:07:03,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:07:03" (1/1) ... [2019-12-27 08:07:03,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2257a400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:07:03, skipping insertion in model container [2019-12-27 08:07:03,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:07:03" (1/1) ... [2019-12-27 08:07:03,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 08:07:03,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 08:07:03,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:07:03,852 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 08:07:03,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:07:03,985 INFO L208 MainTranslator]: Completed translation [2019-12-27 08:07:03,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:07:03 WrapperNode [2019-12-27 08:07:03,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 08:07:03,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 08:07:03,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 08:07:03,987 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 08:07:03,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:07:03" (1/1) ... [2019-12-27 08:07:04,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:07:03" (1/1) ... [2019-12-27 08:07:04,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 08:07:04,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 08:07:04,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 08:07:04,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 08:07:04,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:07:03" (1/1) ... [2019-12-27 08:07:04,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:07:03" (1/1) ... [2019-12-27 08:07:04,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:07:03" (1/1) ... [2019-12-27 08:07:04,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:07:03" (1/1) ... [2019-12-27 08:07:04,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:07:03" (1/1) ... [2019-12-27 08:07:04,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:07:03" (1/1) ... [2019-12-27 08:07:04,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:07:03" (1/1) ... [2019-12-27 08:07:04,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 08:07:04,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 08:07:04,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 08:07:04,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 08:07:04,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:07:03" (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 [2019-12-27 08:07:04,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 08:07:04,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 08:07:04,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 08:07:04,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 08:07:04,147 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 08:07:04,148 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 08:07:04,148 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 08:07:04,149 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 08:07:04,150 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 08:07:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 08:07:04,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 08:07:04,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 08:07:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 08:07:04,153 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 08:07:04,494 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 08:07:04,495 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 08:07:04,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:07:04 BoogieIcfgContainer [2019-12-27 08:07:04,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 08:07:04,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 08:07:04,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 08:07:04,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 08:07:04,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 08:07:03" (1/3) ... [2019-12-27 08:07:04,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23f707dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:07:04, skipping insertion in model container [2019-12-27 08:07:04,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:07:03" (2/3) ... [2019-12-27 08:07:04,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23f707dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:07:04, skipping insertion in model container [2019-12-27 08:07:04,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:07:04" (3/3) ... [2019-12-27 08:07:04,510 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_tso.oepc.i [2019-12-27 08:07:04,519 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 08:07:04,519 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 08:07:04,526 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 08:07:04,527 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 08:07:04,559 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,559 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,559 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,560 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,560 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,560 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,561 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,561 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,561 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,562 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,563 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,563 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,563 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,564 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,564 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,564 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,564 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,565 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,570 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,571 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,571 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,571 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,578 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,578 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,578 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,579 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,581 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,582 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,582 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,582 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:07:04,596 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 08:07:04,614 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:07:04,614 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:07:04,614 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:07:04,615 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:07:04,615 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:07:04,615 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:07:04,615 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:07:04,615 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:07:04,629 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 08:07:04,632 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 08:07:04,676 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 08:07:04,676 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 08:07:04,683 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 08:07:04,685 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 08:07:04,704 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 08:07:04,704 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 08:07:04,706 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 08:07:04,708 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 08:07:04,709 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 08:07:06,240 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 08:07:06,314 INFO L206 etLargeBlockEncoding]: Checked pairs total: 453 [2019-12-27 08:07:06,315 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 08:07:06,320 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 08:07:06,342 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 08:07:06,345 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 08:07:06,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 08:07:06,366 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:07:06,367 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:07:06,368 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:07:06,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:07:06,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1890044162, now seen corresponding path program 1 times [2019-12-27 08:07:06,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:07:06,393 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635402273] [2019-12-27 08:07:06,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:07:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:07:06,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:07:06,722 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635402273] [2019-12-27 08:07:06,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:07:06,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 08:07:06,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979447948] [2019-12-27 08:07:06,733 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:07:06,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:07:06,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:07:06,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:07:06,749 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 08:07:06,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:07:06,776 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 08:07:06,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:07:06,778 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 08:07:06,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:07:06,791 INFO L225 Difference]: With dead ends: 42 [2019-12-27 08:07:06,791 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 08:07:06,793 INFO L631 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 [2019-12-27 08:07:06,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 08:07:06,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 08:07:06,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 08:07:06,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 08:07:06,833 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 08:07:06,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:07:06,834 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 08:07:06,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:07:06,835 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 08:07:06,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 08:07:06,836 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:07:06,836 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:07:06,836 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:07:06,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:07:06,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1538098686, now seen corresponding path program 1 times [2019-12-27 08:07:06,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:07:06,837 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277703262] [2019-12-27 08:07:06,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:07:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:07:06,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:07:06,904 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277703262] [2019-12-27 08:07:06,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:07:06,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 08:07:06,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899912021] [2019-12-27 08:07:06,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 08:07:06,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:07:06,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 08:07:06,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:07:06,907 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 08:07:06,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:07:06,940 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 08:07:06,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 08:07:06,941 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 08:07:06,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:07:06,942 INFO L225 Difference]: With dead ends: 36 [2019-12-27 08:07:06,942 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 08:07:06,943 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:07:06,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 08:07:06,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 08:07:06,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 08:07:06,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-27 08:07:06,948 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-27 08:07:06,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:07:06,950 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-27 08:07:06,950 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 08:07:06,950 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-27 08:07:06,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 08:07:06,951 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:07:06,951 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:07:06,952 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:07:06,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:07:06,952 INFO L82 PathProgramCache]: Analyzing trace with hash -548239570, now seen corresponding path program 1 times [2019-12-27 08:07:06,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:07:06,953 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118421741] [2019-12-27 08:07:06,953 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:07:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:07:07,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:07:07,094 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118421741] [2019-12-27 08:07:07,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:07:07,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 08:07:07,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730592054] [2019-12-27 08:07:07,095 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 08:07:07,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:07:07,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 08:07:07,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 08:07:07,096 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 6 states. [2019-12-27 08:07:07,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:07:07,193 INFO L93 Difference]: Finished difference Result 28 states and 45 transitions. [2019-12-27 08:07:07,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:07:07,193 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 08:07:07,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:07:07,194 INFO L225 Difference]: With dead ends: 28 [2019-12-27 08:07:07,194 INFO L226 Difference]: Without dead ends: 22 [2019-12-27 08:07:07,195 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-27 08:07:07,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-27 08:07:07,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-27 08:07:07,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 08:07:07,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-27 08:07:07,200 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 10 [2019-12-27 08:07:07,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:07:07,201 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-27 08:07:07,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 08:07:07,201 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-27 08:07:07,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 08:07:07,202 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:07:07,202 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:07:07,202 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:07:07,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:07:07,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1277925028, now seen corresponding path program 1 times [2019-12-27 08:07:07,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:07:07,203 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007978347] [2019-12-27 08:07:07,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:07:07,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:07:07,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:07:07,298 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007978347] [2019-12-27 08:07:07,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:07:07,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:07:07,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352248532] [2019-12-27 08:07:07,300 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 08:07:07,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:07:07,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 08:07:07,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:07:07,301 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-27 08:07:07,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:07:07,323 INFO L93 Difference]: Finished difference Result 24 states and 34 transitions. [2019-12-27 08:07:07,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 08:07:07,323 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 08:07:07,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:07:07,324 INFO L225 Difference]: With dead ends: 24 [2019-12-27 08:07:07,324 INFO L226 Difference]: Without dead ends: 14 [2019-12-27 08:07:07,324 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:07:07,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-27 08:07:07,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-27 08:07:07,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-27 08:07:07,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-12-27 08:07:07,328 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2019-12-27 08:07:07,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:07:07,328 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-12-27 08:07:07,328 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 08:07:07,329 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-12-27 08:07:07,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 08:07:07,329 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:07:07,329 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:07:07,330 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:07:07,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:07:07,330 INFO L82 PathProgramCache]: Analyzing trace with hash 184515028, now seen corresponding path program 2 times [2019-12-27 08:07:07,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:07:07,330 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317455640] [2019-12-27 08:07:07,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:07:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:07:07,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:07:07,371 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317455640] [2019-12-27 08:07:07,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:07:07,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:07:07,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78548604] [2019-12-27 08:07:07,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 08:07:07,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:07:07,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 08:07:07,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:07:07,373 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 4 states. [2019-12-27 08:07:07,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:07:07,387 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-27 08:07:07,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 08:07:07,387 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 08:07:07,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:07:07,388 INFO L225 Difference]: With dead ends: 13 [2019-12-27 08:07:07,388 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 08:07:07,388 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:07:07,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 08:07:07,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 08:07:07,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 08:07:07,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 08:07:07,389 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 08:07:07,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:07:07,389 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 08:07:07,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 08:07:07,390 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 08:07:07,390 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 08:07:07,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 08:07:07 BasicIcfg [2019-12-27 08:07:07,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 08:07:07,396 INFO L168 Benchmark]: Toolchain (without parser) took 4177.50 ms. Allocated memory was 139.5 MB in the beginning and 246.9 MB in the end (delta: 107.5 MB). Free memory was 102.4 MB in the beginning and 142.7 MB in the end (delta: -40.2 MB). Peak memory consumption was 67.3 MB. Max. memory is 7.1 GB. [2019-12-27 08:07:07,397 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 08:07:07,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.09 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 102.0 MB in the beginning and 159.1 MB in the end (delta: -57.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-12-27 08:07:07,399 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.94 ms. Allocated memory is still 201.9 MB. Free memory was 159.1 MB in the beginning and 156.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-27 08:07:07,400 INFO L168 Benchmark]: Boogie Preprocessor took 27.14 ms. Allocated memory is still 201.9 MB. Free memory was 156.5 MB in the beginning and 155.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 08:07:07,401 INFO L168 Benchmark]: RCFGBuilder took 429.04 ms. Allocated memory is still 201.9 MB. Free memory was 155.2 MB in the beginning and 135.0 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-27 08:07:07,402 INFO L168 Benchmark]: TraceAbstraction took 2896.98 ms. Allocated memory was 201.9 MB in the beginning and 246.9 MB in the end (delta: 45.1 MB). Free memory was 134.4 MB in the beginning and 142.7 MB in the end (delta: -8.3 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. [2019-12-27 08:07:07,406 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 766.09 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 102.0 MB in the beginning and 159.1 MB in the end (delta: -57.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.94 ms. Allocated memory is still 201.9 MB. Free memory was 159.1 MB in the beginning and 156.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.14 ms. Allocated memory is still 201.9 MB. Free memory was 156.5 MB in the beginning and 155.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 429.04 ms. Allocated memory is still 201.9 MB. Free memory was 155.2 MB in the beginning and 135.0 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2896.98 ms. Allocated memory was 201.9 MB in the beginning and 246.9 MB in the end (delta: 45.1 MB). Free memory was 134.4 MB in the beginning and 142.7 MB in the end (delta: -8.3 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 238 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 453 CheckedPairsTotal, 44 TotalNumberOfCompositions - PositiveResult [Line: 4]: 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 43 SDslu, 50 SDs, 0 SdLazy, 39 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1134 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...