/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:33:59,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:33:59,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:33:59,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:33:59,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:33:59,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:33:59,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:33:59,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:33:59,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:33:59,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:33:59,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:33:59,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:33:59,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:33:59,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:33:59,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:33:59,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:33:59,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:33:59,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:33:59,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:33:59,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:33:59,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:33:59,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:33:59,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:33:59,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:33:59,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 05:34:00,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:34:00,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:34:00,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:34:00,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:34:00,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:34:00,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:34:00,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:34:00,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:34:00,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:34:00,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:34:00,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:34:00,013 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 05:34:00,038 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:34:00,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:34:00,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:34:00,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:34:00,040 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:34:00,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:34:00,042 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:34:00,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:34:00,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:34:00,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:34:00,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:34:00,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:34:00,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:34:00,044 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:34:00,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:34:00,044 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:34:00,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:34:00,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:34:00,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:34:00,045 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:34:00,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:34:00,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:34:00,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:34:00,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:34:00,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:34:00,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:34:00,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:34:00,050 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:34:00,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:34:00,052 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:34:00,336 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:34:00,357 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:34:00,361 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:34:00,362 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:34:00,363 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:34:00,364 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.opt.i [2019-12-19 05:34:00,431 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f129e7875/610b1b118eab4f33bc4245144070a24d/FLAGbd9cdca79 [2019-12-19 05:34:01,033 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:34:01,036 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_tso.opt.i [2019-12-19 05:34:01,057 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f129e7875/610b1b118eab4f33bc4245144070a24d/FLAGbd9cdca79 [2019-12-19 05:34:01,293 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f129e7875/610b1b118eab4f33bc4245144070a24d [2019-12-19 05:34:01,303 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:34:01,305 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:34:01,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:34:01,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:34:01,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:34:01,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:34:01" (1/1) ... [2019-12-19 05:34:01,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70dbd6c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:01, skipping insertion in model container [2019-12-19 05:34:01,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:34:01" (1/1) ... [2019-12-19 05:34:01,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:34:01,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:34:01,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:34:01,867 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:34:01,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:34:02,002 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:34:02,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:02 WrapperNode [2019-12-19 05:34:02,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:34:02,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:34:02,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:34:02,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:34:02,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:02" (1/1) ... [2019-12-19 05:34:02,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:02" (1/1) ... [2019-12-19 05:34:02,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:34:02,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:34:02,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:34:02,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:34:02,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:02" (1/1) ... [2019-12-19 05:34:02,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:02" (1/1) ... [2019-12-19 05:34:02,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:02" (1/1) ... [2019-12-19 05:34:02,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:02" (1/1) ... [2019-12-19 05:34:02,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:02" (1/1) ... [2019-12-19 05:34:02,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:02" (1/1) ... [2019-12-19 05:34:02,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:02" (1/1) ... [2019-12-19 05:34:02,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:34:02,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:34:02,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:34:02,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:34:02,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:02" (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 [2019-12-19 05:34:02,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:34:02,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:34:02,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:34:02,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:34:02,144 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:34:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:34:02,144 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:34:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:34:02,144 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:34:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:34:02,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:34:02,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:34:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:34:02,147 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:34:02,481 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:34:02,481 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:34:02,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:34:02 BoogieIcfgContainer [2019-12-19 05:34:02,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:34:02,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:34:02,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:34:02,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:34:02,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:34:01" (1/3) ... [2019-12-19 05:34:02,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c6b457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:34:02, skipping insertion in model container [2019-12-19 05:34:02,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:02" (2/3) ... [2019-12-19 05:34:02,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c6b457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:34:02, skipping insertion in model container [2019-12-19 05:34:02,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:34:02" (3/3) ... [2019-12-19 05:34:02,496 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_tso.opt.i [2019-12-19 05:34:02,506 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:34:02,506 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:34:02,513 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:34:02,514 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:34:02,551 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,551 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,552 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,552 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,553 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,553 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,554 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,554 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,554 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,554 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,555 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,555 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,556 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,556 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,556 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,556 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,557 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,557 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,562 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,563 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,563 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,565 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,576 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,577 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,577 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,577 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,579 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,580 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,580 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,580 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:02,594 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:34:02,610 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:34:02,610 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:34:02,611 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:34:02,611 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:34:02,611 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:34:02,611 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:34:02,611 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:34:02,611 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:34:02,622 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 55 transitions [2019-12-19 05:34:02,723 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1249 states. [2019-12-19 05:34:02,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states. [2019-12-19 05:34:02,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:34:02,748 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:02,749 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:34:02,749 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:02,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:02,755 INFO L82 PathProgramCache]: Analyzing trace with hash -856501925, now seen corresponding path program 1 times [2019-12-19 05:34:02,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:02,763 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52061439] [2019-12-19 05:34:02,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:03,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:34:03,135 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52061439] [2019-12-19 05:34:03,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:03,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:34:03,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637480689] [2019-12-19 05:34:03,143 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:34:03,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:03,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:34:03,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:34:03,162 INFO L87 Difference]: Start difference. First operand 1249 states. Second operand 4 states. [2019-12-19 05:34:03,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:03,316 INFO L93 Difference]: Finished difference Result 1296 states and 3962 transitions. [2019-12-19 05:34:03,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:34:03,318 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-19 05:34:03,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:03,346 INFO L225 Difference]: With dead ends: 1296 [2019-12-19 05:34:03,346 INFO L226 Difference]: Without dead ends: 602 [2019-12-19 05:34:03,348 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:34:03,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-12-19 05:34:03,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-12-19 05:34:03,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-12-19 05:34:03,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1777 transitions. [2019-12-19 05:34:03,461 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1777 transitions. Word has length 32 [2019-12-19 05:34:03,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:03,462 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 1777 transitions. [2019-12-19 05:34:03,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:34:03,462 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1777 transitions. [2019-12-19 05:34:03,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:34:03,465 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:03,465 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:34:03,466 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:03,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:03,466 INFO L82 PathProgramCache]: Analyzing trace with hash 709357799, now seen corresponding path program 1 times [2019-12-19 05:34:03,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:03,467 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929212704] [2019-12-19 05:34:03,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:03,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:34:03,617 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929212704] [2019-12-19 05:34:03,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:03,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:34:03,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517925381] [2019-12-19 05:34:03,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:34:03,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:03,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:34:03,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:34:03,622 INFO L87 Difference]: Start difference. First operand 602 states and 1777 transitions. Second operand 5 states. [2019-12-19 05:34:03,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:03,718 INFO L93 Difference]: Finished difference Result 602 states and 1696 transitions. [2019-12-19 05:34:03,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:34:03,721 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-12-19 05:34:03,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:03,733 INFO L225 Difference]: With dead ends: 602 [2019-12-19 05:34:03,733 INFO L226 Difference]: Without dead ends: 539 [2019-12-19 05:34:03,734 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:34:03,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-12-19 05:34:03,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2019-12-19 05:34:03,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-12-19 05:34:03,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1546 transitions. [2019-12-19 05:34:03,776 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1546 transitions. Word has length 33 [2019-12-19 05:34:03,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:03,776 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 1546 transitions. [2019-12-19 05:34:03,776 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:34:03,776 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1546 transitions. [2019-12-19 05:34:03,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:34:03,778 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:03,779 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:34:03,779 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:03,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:03,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1444603190, now seen corresponding path program 1 times [2019-12-19 05:34:03,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:03,780 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486699773] [2019-12-19 05:34:03,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:03,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:34:03,934 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486699773] [2019-12-19 05:34:03,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:03,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:34:03,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330953301] [2019-12-19 05:34:03,935 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:34:03,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:03,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:34:03,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:34:03,936 INFO L87 Difference]: Start difference. First operand 539 states and 1546 transitions. Second operand 6 states. [2019-12-19 05:34:04,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:04,034 INFO L93 Difference]: Finished difference Result 404 states and 1060 transitions. [2019-12-19 05:34:04,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:34:04,034 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-12-19 05:34:04,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:04,037 INFO L225 Difference]: With dead ends: 404 [2019-12-19 05:34:04,038 INFO L226 Difference]: Without dead ends: 350 [2019-12-19 05:34:04,038 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:34:04,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-12-19 05:34:04,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-12-19 05:34:04,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-12-19 05:34:04,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 916 transitions. [2019-12-19 05:34:04,050 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 916 transitions. Word has length 34 [2019-12-19 05:34:04,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:04,051 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 916 transitions. [2019-12-19 05:34:04,051 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:34:04,051 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 916 transitions. [2019-12-19 05:34:04,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:34:04,053 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:04,053 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:34:04,053 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:04,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:04,054 INFO L82 PathProgramCache]: Analyzing trace with hash 318820434, now seen corresponding path program 1 times [2019-12-19 05:34:04,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:04,054 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871031720] [2019-12-19 05:34:04,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:04,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:34:04,215 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871031720] [2019-12-19 05:34:04,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:04,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:34:04,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591533466] [2019-12-19 05:34:04,217 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:34:04,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:04,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:34:04,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:34:04,218 INFO L87 Difference]: Start difference. First operand 350 states and 916 transitions. Second operand 7 states. [2019-12-19 05:34:04,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:04,394 INFO L93 Difference]: Finished difference Result 521 states and 1396 transitions. [2019-12-19 05:34:04,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:34:04,395 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-19 05:34:04,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:04,398 INFO L225 Difference]: With dead ends: 521 [2019-12-19 05:34:04,398 INFO L226 Difference]: Without dead ends: 314 [2019-12-19 05:34:04,399 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:34:04,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2019-12-19 05:34:04,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 305. [2019-12-19 05:34:04,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2019-12-19 05:34:04,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 781 transitions. [2019-12-19 05:34:04,414 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 781 transitions. Word has length 35 [2019-12-19 05:34:04,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:04,415 INFO L462 AbstractCegarLoop]: Abstraction has 305 states and 781 transitions. [2019-12-19 05:34:04,415 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:34:04,415 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 781 transitions. [2019-12-19 05:34:04,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:34:04,417 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:04,417 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:34:04,417 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:04,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:04,418 INFO L82 PathProgramCache]: Analyzing trace with hash 944612746, now seen corresponding path program 2 times [2019-12-19 05:34:04,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:04,418 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169027327] [2019-12-19 05:34:04,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:04,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:34:04,652 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169027327] [2019-12-19 05:34:04,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:04,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:34:04,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195246807] [2019-12-19 05:34:04,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:34:04,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:04,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:34:04,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:34:04,654 INFO L87 Difference]: Start difference. First operand 305 states and 781 transitions. Second operand 7 states. [2019-12-19 05:34:04,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:04,793 INFO L93 Difference]: Finished difference Result 476 states and 1261 transitions. [2019-12-19 05:34:04,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:34:04,793 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-19 05:34:04,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:04,798 INFO L225 Difference]: With dead ends: 476 [2019-12-19 05:34:04,798 INFO L226 Difference]: Without dead ends: 278 [2019-12-19 05:34:04,799 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:34:04,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-12-19 05:34:04,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 269. [2019-12-19 05:34:04,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-12-19 05:34:04,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 703 transitions. [2019-12-19 05:34:04,809 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 703 transitions. Word has length 35 [2019-12-19 05:34:04,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:04,810 INFO L462 AbstractCegarLoop]: Abstraction has 269 states and 703 transitions. [2019-12-19 05:34:04,810 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:34:04,810 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 703 transitions. [2019-12-19 05:34:04,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:34:04,814 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:04,818 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:34:04,819 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:04,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:04,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1320097416, now seen corresponding path program 3 times [2019-12-19 05:34:04,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:04,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180948702] [2019-12-19 05:34:04,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:04,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:34:04,991 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180948702] [2019-12-19 05:34:04,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:04,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:34:04,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625901254] [2019-12-19 05:34:04,992 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:34:04,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:04,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:34:04,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:34:04,993 INFO L87 Difference]: Start difference. First operand 269 states and 703 transitions. Second operand 7 states. [2019-12-19 05:34:05,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:05,136 INFO L93 Difference]: Finished difference Result 215 states and 541 transitions. [2019-12-19 05:34:05,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:34:05,137 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-19 05:34:05,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:05,137 INFO L225 Difference]: With dead ends: 215 [2019-12-19 05:34:05,137 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:34:05,138 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:34:05,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:34:05,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:34:05,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:34:05,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:34:05,139 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-12-19 05:34:05,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:05,139 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:34:05,139 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:34:05,139 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:34:05,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:34:05,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:34:05 BasicIcfg [2019-12-19 05:34:05,149 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:34:05,154 INFO L168 Benchmark]: Toolchain (without parser) took 3846.38 ms. Allocated memory was 145.8 MB in the beginning and 249.0 MB in the end (delta: 103.3 MB). Free memory was 102.2 MB in the beginning and 155.0 MB in the end (delta: -52.8 MB). Peak memory consumption was 50.5 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:05,155 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-19 05:34:05,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 697.20 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 102.0 MB in the beginning and 160.2 MB in the end (delta: -58.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:05,165 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.88 ms. Allocated memory is still 203.4 MB. Free memory was 160.2 MB in the beginning and 158.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:05,166 INFO L168 Benchmark]: Boogie Preprocessor took 27.64 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 156.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:05,166 INFO L168 Benchmark]: RCFGBuilder took 397.38 ms. Allocated memory is still 203.4 MB. Free memory was 156.9 MB in the beginning and 136.0 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:05,167 INFO L168 Benchmark]: TraceAbstraction took 2664.95 ms. Allocated memory was 203.4 MB in the beginning and 249.0 MB in the end (delta: 45.6 MB). Free memory was 135.4 MB in the beginning and 155.0 MB in the end (delta: -19.6 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:05,179 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 697.20 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 102.0 MB in the beginning and 160.2 MB in the end (delta: -58.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.88 ms. Allocated memory is still 203.4 MB. Free memory was 160.2 MB in the beginning and 158.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.64 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 156.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 397.38 ms. Allocated memory is still 203.4 MB. Free memory was 156.9 MB in the beginning and 136.0 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2664.95 ms. Allocated memory was 203.4 MB in the beginning and 249.0 MB in the end (delta: 45.6 MB). Free memory was 135.4 MB in the beginning and 155.0 MB in the end (delta: -19.6 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 327 SDtfs, 348 SDslu, 905 SDs, 0 SdLazy, 119 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1249occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 18586 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...