/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/safe023_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 14:09:05,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 14:09:05,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 14:09:05,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 14:09:05,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 14:09:05,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 14:09:05,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 14:09:05,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 14:09:05,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 14:09:05,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 14:09:05,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 14:09:05,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 14:09:05,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 14:09:05,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 14:09:05,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 14:09:05,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 14:09:05,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 14:09:05,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 14:09:05,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 14:09:06,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 14:09:06,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 14:09:06,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 14:09:06,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 14:09:06,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 14:09:06,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 14:09:06,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 14:09:06,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 14:09:06,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 14:09:06,020 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 14:09:06,021 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 14:09:06,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 14:09:06,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 14:09:06,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 14:09:06,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 14:09:06,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 14:09:06,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 14:09:06,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 14:09:06,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 14:09:06,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 14:09:06,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 14:09:06,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 14:09:06,030 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 [2019-12-27 14:09:06,065 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 14:09:06,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 14:09:06,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 14:09:06,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 14:09:06,067 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 14:09:06,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 14:09:06,067 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 14:09:06,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 14:09:06,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 14:09:06,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 14:09:06,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 14:09:06,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 14:09:06,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 14:09:06,071 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 14:09:06,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 14:09:06,071 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 14:09:06,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 14:09:06,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 14:09:06,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 14:09:06,072 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 14:09:06,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 14:09:06,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 14:09:06,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 14:09:06,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 14:09:06,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 14:09:06,073 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 14:09:06,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 14:09:06,074 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 14:09:06,074 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 14:09:06,074 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 14:09:06,358 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 14:09:06,375 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 14:09:06,380 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 14:09:06,381 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 14:09:06,382 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 14:09:06,383 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.oepc.i [2019-12-27 14:09:06,461 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79600a814/ee96436f4eed40ac8fcc6da34ed2017b/FLAG068a2c91d [2019-12-27 14:09:06,995 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 14:09:06,996 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.oepc.i [2019-12-27 14:09:07,038 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79600a814/ee96436f4eed40ac8fcc6da34ed2017b/FLAG068a2c91d [2019-12-27 14:09:07,304 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79600a814/ee96436f4eed40ac8fcc6da34ed2017b [2019-12-27 14:09:07,315 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 14:09:07,317 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 14:09:07,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 14:09:07,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 14:09:07,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 14:09:07,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:09:07" (1/1) ... [2019-12-27 14:09:07,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e59dc4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:09:07, skipping insertion in model container [2019-12-27 14:09:07,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:09:07" (1/1) ... [2019-12-27 14:09:07,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 14:09:07,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 14:09:07,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:09:07,877 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 14:09:07,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:09:08,015 INFO L208 MainTranslator]: Completed translation [2019-12-27 14:09:08,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:09:08 WrapperNode [2019-12-27 14:09:08,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 14:09:08,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 14:09:08,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 14:09:08,017 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 14:09:08,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:09:08" (1/1) ... [2019-12-27 14:09:08,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:09:08" (1/1) ... [2019-12-27 14:09:08,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 14:09:08,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 14:09:08,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 14:09:08,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 14:09:08,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:09:08" (1/1) ... [2019-12-27 14:09:08,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:09:08" (1/1) ... [2019-12-27 14:09:08,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:09:08" (1/1) ... [2019-12-27 14:09:08,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:09:08" (1/1) ... [2019-12-27 14:09:08,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:09:08" (1/1) ... [2019-12-27 14:09:08,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:09:08" (1/1) ... [2019-12-27 14:09:08,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:09:08" (1/1) ... [2019-12-27 14:09:08,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 14:09:08,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 14:09:08,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 14:09:08,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 14:09:08,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:09:08" (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 14:09:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 14:09:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 14:09:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 14:09:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 14:09:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 14:09:08,167 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 14:09:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 14:09:08,168 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 14:09:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 14:09:08,168 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 14:09:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 14:09:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 14:09:08,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 14:09:08,170 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 14:09:08,517 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 14:09:08,518 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 14:09:08,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:09:08 BoogieIcfgContainer [2019-12-27 14:09:08,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 14:09:08,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 14:09:08,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 14:09:08,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 14:09:08,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 02:09:07" (1/3) ... [2019-12-27 14:09:08,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60395f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:09:08, skipping insertion in model container [2019-12-27 14:09:08,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:09:08" (2/3) ... [2019-12-27 14:09:08,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60395f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:09:08, skipping insertion in model container [2019-12-27 14:09:08,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:09:08" (3/3) ... [2019-12-27 14:09:08,528 INFO L109 eAbstractionObserver]: Analyzing ICFG safe023_tso.oepc.i [2019-12-27 14:09:08,539 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 14:09:08,540 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 14:09:08,547 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 14:09:08,548 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 14:09:08,578 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,578 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,578 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,579 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,579 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,580 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,580 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,580 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,581 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,581 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,581 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,581 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,582 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,582 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,582 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,583 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,583 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,583 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,587 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,588 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,588 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,588 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,594 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,595 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,595 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,596 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,598 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,599 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,599 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,599 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:09:08,614 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 14:09:08,631 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 14:09:08,631 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 14:09:08,631 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 14:09:08,631 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 14:09:08,631 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 14:09:08,632 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 14:09:08,632 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 14:09:08,632 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 14:09:08,643 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-27 14:09:08,733 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-27 14:09:08,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-27 14:09:08,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-27 14:09:08,767 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:09:08,770 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] [2019-12-27 14:09:08,770 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:09:08,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:09:08,778 INFO L82 PathProgramCache]: Analyzing trace with hash -2051529162, now seen corresponding path program 1 times [2019-12-27 14:09:08,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:09:08,787 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449109835] [2019-12-27 14:09:08,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:09:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:09:09,232 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 14:09:09,234 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449109835] [2019-12-27 14:09:09,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:09:09,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 14:09:09,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572282430] [2019-12-27 14:09:09,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 14:09:09,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:09:09,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 14:09:09,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 14:09:09,262 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-27 14:09:09,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:09:09,395 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-27 14:09:09,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 14:09:09,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-27 14:09:09,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:09:09,425 INFO L225 Difference]: With dead ends: 1295 [2019-12-27 14:09:09,425 INFO L226 Difference]: Without dead ends: 601 [2019-12-27 14:09:09,427 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 [2019-12-27 14:09:09,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-27 14:09:09,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-27 14:09:09,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-27 14:09:09,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-27 14:09:09,545 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-27 14:09:09,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:09:09,546 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-27 14:09:09,546 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 14:09:09,546 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-27 14:09:09,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-27 14:09:09,551 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:09:09,551 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] [2019-12-27 14:09:09,551 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:09:09,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:09:09,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1995748591, now seen corresponding path program 1 times [2019-12-27 14:09:09,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:09:09,553 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658480091] [2019-12-27 14:09:09,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:09:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:09:09,713 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 14:09:09,713 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658480091] [2019-12-27 14:09:09,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:09:09,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 14:09:09,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642723907] [2019-12-27 14:09:09,716 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 14:09:09,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:09:09,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 14:09:09,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 14:09:09,718 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-27 14:09:09,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:09:09,816 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-27 14:09:09,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 14:09:09,820 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-27 14:09:09,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:09:09,829 INFO L225 Difference]: With dead ends: 601 [2019-12-27 14:09:09,830 INFO L226 Difference]: Without dead ends: 538 [2019-12-27 14:09:09,833 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 [2019-12-27 14:09:09,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-27 14:09:09,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-27 14:09:09,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-27 14:09:09,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-27 14:09:09,889 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-27 14:09:09,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:09:09,889 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-27 14:09:09,889 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 14:09:09,889 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-27 14:09:09,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 14:09:09,891 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:09:09,891 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] [2019-12-27 14:09:09,892 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:09:09,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:09:09,892 INFO L82 PathProgramCache]: Analyzing trace with hash -505047863, now seen corresponding path program 1 times [2019-12-27 14:09:09,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:09:09,893 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877151294] [2019-12-27 14:09:09,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:09:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:09:10,044 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 14:09:10,045 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877151294] [2019-12-27 14:09:10,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:09:10,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 14:09:10,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503582371] [2019-12-27 14:09:10,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 14:09:10,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:09:10,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 14:09:10,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 14:09:10,047 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-27 14:09:10,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:09:10,146 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-27 14:09:10,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:09:10,147 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-27 14:09:10,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:09:10,151 INFO L225 Difference]: With dead ends: 403 [2019-12-27 14:09:10,151 INFO L226 Difference]: Without dead ends: 349 [2019-12-27 14:09:10,151 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 [2019-12-27 14:09:10,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-27 14:09:10,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-27 14:09:10,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-27 14:09:10,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-27 14:09:10,175 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-27 14:09:10,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:09:10,175 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-27 14:09:10,176 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 14:09:10,176 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-27 14:09:10,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 14:09:10,181 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:09:10,181 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] [2019-12-27 14:09:10,182 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:09:10,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:09:10,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1707713269, now seen corresponding path program 1 times [2019-12-27 14:09:10,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:09:10,183 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809183160] [2019-12-27 14:09:10,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:09:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:09:10,403 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 14:09:10,403 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809183160] [2019-12-27 14:09:10,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:09:10,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 14:09:10,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583280734] [2019-12-27 14:09:10,405 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 14:09:10,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:09:10,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 14:09:10,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-27 14:09:10,406 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 8 states. [2019-12-27 14:09:10,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:09:10,779 INFO L93 Difference]: Finished difference Result 889 states and 2418 transitions. [2019-12-27 14:09:10,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-12-27 14:09:10,780 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-27 14:09:10,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:09:10,797 INFO L225 Difference]: With dead ends: 889 [2019-12-27 14:09:10,798 INFO L226 Difference]: Without dead ends: 280 [2019-12-27 14:09:10,798 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2019-12-27 14:09:10,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-12-27 14:09:10,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2019-12-27 14:09:10,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-12-27 14:09:10,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 726 transitions. [2019-12-27 14:09:10,808 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 726 transitions. Word has length 34 [2019-12-27 14:09:10,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:09:10,809 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 726 transitions. [2019-12-27 14:09:10,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 14:09:10,809 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 726 transitions. [2019-12-27 14:09:10,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 14:09:10,810 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:09:10,810 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] [2019-12-27 14:09:10,810 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:09:10,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:09:10,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1612310977, now seen corresponding path program 2 times [2019-12-27 14:09:10,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:09:10,812 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033297421] [2019-12-27 14:09:10,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:09:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:09:10,943 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 14:09:10,944 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033297421] [2019-12-27 14:09:10,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:09:10,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 14:09:10,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734532869] [2019-12-27 14:09:10,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 14:09:10,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:09:10,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 14:09:10,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-27 14:09:10,946 INFO L87 Difference]: Start difference. First operand 280 states and 726 transitions. Second operand 8 states. [2019-12-27 14:09:11,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:09:11,038 INFO L93 Difference]: Finished difference Result 226 states and 564 transitions. [2019-12-27 14:09:11,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 14:09:11,039 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-27 14:09:11,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:09:11,039 INFO L225 Difference]: With dead ends: 226 [2019-12-27 14:09:11,039 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 14:09:11,040 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-27 14:09:11,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 14:09:11,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 14:09:11,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 14:09:11,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 14:09:11,041 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-27 14:09:11,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:09:11,041 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 14:09:11,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 14:09:11,041 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 14:09:11,041 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 14:09:11,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 02:09:11 BasicIcfg [2019-12-27 14:09:11,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 14:09:11,052 INFO L168 Benchmark]: Toolchain (without parser) took 3732.56 ms. Allocated memory was 145.8 MB in the beginning and 249.0 MB in the end (delta: 103.3 MB). Free memory was 101.1 MB in the beginning and 176.5 MB in the end (delta: -75.4 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2019-12-27 14:09:11,053 INFO L168 Benchmark]: CDTParser took 1.45 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 14:09:11,054 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.89 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.7 MB in the beginning and 160.2 MB in the end (delta: -59.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 14:09:11,055 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.30 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. [2019-12-27 14:09:11,056 INFO L168 Benchmark]: Boogie Preprocessor took 28.31 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. [2019-12-27 14:09:11,057 INFO L168 Benchmark]: RCFGBuilder took 426.13 ms. Allocated memory is still 203.4 MB. Free memory was 156.9 MB in the beginning and 136.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-27 14:09:11,058 INFO L168 Benchmark]: TraceAbstraction took 2526.20 ms. Allocated memory was 203.4 MB in the beginning and 249.0 MB in the end (delta: 45.6 MB). Free memory was 135.7 MB in the beginning and 176.5 MB in the end (delta: -40.9 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2019-12-27 14:09:11,062 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.45 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 695.89 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.7 MB in the beginning and 160.2 MB in the end (delta: -59.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.30 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 28.31 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 426.13 ms. Allocated memory is still 203.4 MB. Free memory was 156.9 MB in the beginning and 136.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2526.20 ms. Allocated memory was 203.4 MB in the beginning and 249.0 MB in the end (delta: 45.6 MB). Free memory was 135.7 MB in the beginning and 176.5 MB in the end (delta: -40.9 MB). Peak memory consumption was 4.8 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 266 SDtfs, 357 SDslu, 711 SDs, 0 SdLazy, 108 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 15831 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...