/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/safe008_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:30:21,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:30:21,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:30:21,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:30:21,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:30:21,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:30:21,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:30:21,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:30:21,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:30:21,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:30:21,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:30:21,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:30:21,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:30:21,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:30:21,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:30:21,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:30:21,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:30:21,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:30:21,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:30:21,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:30:21,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:30:21,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:30:21,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:30:22,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:30:22,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 04:30:22,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:30:22,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:30:22,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:30:22,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:30:22,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:30:22,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:30:22,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:30:22,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:30:22,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:30:22,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:30:22,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:30:22,019 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 04:30:22,041 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:30:22,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:30:22,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:30:22,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:30:22,044 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:30:22,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:30:22,044 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:30:22,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:30:22,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:30:22,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:30:22,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:30:22,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:30:22,047 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:30:22,047 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:30:22,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:30:22,047 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:30:22,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:30:22,048 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:30:22,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:30:22,048 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:30:22,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:30:22,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:30:22,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:30:22,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:30:22,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:30:22,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:30:22,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:30:22,050 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:30:22,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:30:22,050 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:30:22,319 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:30:22,342 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:30:22,345 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:30:22,346 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:30:22,347 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:30:22,348 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2019-12-19 04:30:22,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f86b9a473/c391f9a8fd3a474e8f0fc18ba6463d4f/FLAGdbca1027e [2019-12-19 04:30:22,935 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:30:22,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2019-12-19 04:30:22,959 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f86b9a473/c391f9a8fd3a474e8f0fc18ba6463d4f/FLAGdbca1027e [2019-12-19 04:30:23,251 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f86b9a473/c391f9a8fd3a474e8f0fc18ba6463d4f [2019-12-19 04:30:23,262 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:30:23,264 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:30:23,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:30:23,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:30:23,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:30:23,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:30:23" (1/1) ... [2019-12-19 04:30:23,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7820f996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:30:23, skipping insertion in model container [2019-12-19 04:30:23,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:30:23" (1/1) ... [2019-12-19 04:30:23,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:30:23,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:30:23,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:30:23,870 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:30:23,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:30:24,033 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:30:24,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:30:24 WrapperNode [2019-12-19 04:30:24,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:30:24,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:30:24,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:30:24,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:30:24,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:30:24" (1/1) ... [2019-12-19 04:30:24,064 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:30:24" (1/1) ... [2019-12-19 04:30:24,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:30:24,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:30:24,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:30:24,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:30:24,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:30:24" (1/1) ... [2019-12-19 04:30:24,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:30:24" (1/1) ... [2019-12-19 04:30:24,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:30:24" (1/1) ... [2019-12-19 04:30:24,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:30:24" (1/1) ... [2019-12-19 04:30:24,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:30:24" (1/1) ... [2019-12-19 04:30:24,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:30:24" (1/1) ... [2019-12-19 04:30:24,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:30:24" (1/1) ... [2019-12-19 04:30:24,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:30:24,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:30:24,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:30:24,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:30:24,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:30:24" (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 04:30:24,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:30:24,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:30:24,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:30:24,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:30:24,195 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:30:24,195 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:30:24,195 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:30:24,196 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:30:24,196 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:30:24,197 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:30:24,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:30:24,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:30:24,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:30:24,200 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 04:30:24,583 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:30:24,584 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:30:24,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:30:24 BoogieIcfgContainer [2019-12-19 04:30:24,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:30:24,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:30:24,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:30:24,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:30:24,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:30:23" (1/3) ... [2019-12-19 04:30:24,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12596270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:30:24, skipping insertion in model container [2019-12-19 04:30:24,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:30:24" (2/3) ... [2019-12-19 04:30:24,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12596270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:30:24, skipping insertion in model container [2019-12-19 04:30:24,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:30:24" (3/3) ... [2019-12-19 04:30:24,595 INFO L109 eAbstractionObserver]: Analyzing ICFG safe008_tso.opt.i [2019-12-19 04:30:24,605 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:30:24,606 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:30:24,614 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:30:24,615 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:30:24,642 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,642 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,643 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,643 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,644 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,644 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,644 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,645 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,645 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,645 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,645 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,645 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,646 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,646 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,646 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,646 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,647 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,647 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,650 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,651 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,651 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,651 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,656 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,658 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,658 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,659 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,671 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,671 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,671 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,672 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:30:24,689 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:30:24,708 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:30:24,708 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:30:24,708 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:30:24,709 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:30:24,709 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:30:24,709 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:30:24,709 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:30:24,709 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:30:24,721 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 04:30:24,801 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 04:30:24,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 04:30:24,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:30:24,820 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:30:24,821 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] [2019-12-19 04:30:24,821 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:30:24,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:30:24,828 INFO L82 PathProgramCache]: Analyzing trace with hash -771073264, now seen corresponding path program 1 times [2019-12-19 04:30:24,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:30:24,838 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640513866] [2019-12-19 04:30:24,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:30:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:30:25,236 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 04:30:25,237 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640513866] [2019-12-19 04:30:25,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:30:25,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:30:25,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427653712] [2019-12-19 04:30:25,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:30:25,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:30:25,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:30:25,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:30:25,261 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 04:30:25,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:30:25,399 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 04:30:25,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:30:25,401 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 04:30:25,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:30:25,425 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 04:30:25,425 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 04:30:25,427 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 [2019-12-19 04:30:25,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 04:30:25,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 04:30:25,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 04:30:25,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 04:30:25,537 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 04:30:25,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:30:25,537 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 04:30:25,537 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:30:25,538 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 04:30:25,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:30:25,546 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:30:25,547 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 04:30:25,547 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:30:25,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:30:25,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1342943045, now seen corresponding path program 1 times [2019-12-19 04:30:25,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:30:25,549 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439265868] [2019-12-19 04:30:25,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:30:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:30:25,751 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 04:30:25,752 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439265868] [2019-12-19 04:30:25,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:30:25,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:30:25,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064515172] [2019-12-19 04:30:25,754 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:30:25,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:30:25,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:30:25,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:30:25,755 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 04:30:25,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:30:25,852 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 04:30:25,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:30:25,856 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 04:30:25,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:30:25,866 INFO L225 Difference]: With dead ends: 601 [2019-12-19 04:30:25,866 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 04:30:25,876 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 04:30:25,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 04:30:25,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 04:30:25,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 04:30:25,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 04:30:25,930 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 04:30:25,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:30:25,930 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 04:30:25,930 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:30:25,931 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 04:30:25,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:30:25,933 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:30:25,933 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 04:30:25,933 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:30:25,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:30:25,934 INFO L82 PathProgramCache]: Analyzing trace with hash -837131723, now seen corresponding path program 1 times [2019-12-19 04:30:25,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:30:25,934 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985354315] [2019-12-19 04:30:25,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:30:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:30:26,085 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 04:30:26,088 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985354315] [2019-12-19 04:30:26,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:30:26,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:30:26,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740368073] [2019-12-19 04:30:26,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:30:26,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:30:26,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:30:26,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:30:26,090 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 04:30:26,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:30:26,187 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 04:30:26,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:30:26,187 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 04:30:26,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:30:26,191 INFO L225 Difference]: With dead ends: 403 [2019-12-19 04:30:26,191 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 04:30:26,192 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 04:30:26,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 04:30:26,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 04:30:26,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 04:30:26,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 04:30:26,209 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 04:30:26,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:30:26,210 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 04:30:26,210 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:30:26,210 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 04:30:26,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:30:26,214 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:30:26,214 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 04:30:26,215 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:30:26,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:30:26,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1670484431, now seen corresponding path program 1 times [2019-12-19 04:30:26,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:30:26,216 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320745127] [2019-12-19 04:30:26,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:30:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:30:26,415 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 04:30:26,415 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320745127] [2019-12-19 04:30:26,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:30:26,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:30:26,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493975070] [2019-12-19 04:30:26,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:30:26,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:30:26,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:30:26,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:30:26,418 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 6 states. [2019-12-19 04:30:26,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:30:26,544 INFO L93 Difference]: Finished difference Result 529 states and 1416 transitions. [2019-12-19 04:30:26,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:30:26,545 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-12-19 04:30:26,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:30:26,548 INFO L225 Difference]: With dead ends: 529 [2019-12-19 04:30:26,548 INFO L226 Difference]: Without dead ends: 322 [2019-12-19 04:30:26,549 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:30:26,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2019-12-19 04:30:26,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 304. [2019-12-19 04:30:26,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2019-12-19 04:30:26,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 780 transitions. [2019-12-19 04:30:26,562 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 780 transitions. Word has length 34 [2019-12-19 04:30:26,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:30:26,563 INFO L462 AbstractCegarLoop]: Abstraction has 304 states and 780 transitions. [2019-12-19 04:30:26,563 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:30:26,563 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 780 transitions. [2019-12-19 04:30:26,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:30:26,564 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:30:26,565 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 04:30:26,565 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:30:26,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:30:26,566 INFO L82 PathProgramCache]: Analyzing trace with hash -198763125, now seen corresponding path program 2 times [2019-12-19 04:30:26,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:30:26,566 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61253649] [2019-12-19 04:30:26,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:30:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:30:26,734 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 04:30:26,734 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61253649] [2019-12-19 04:30:26,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:30:26,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:30:26,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900580601] [2019-12-19 04:30:26,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:30:26,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:30:26,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:30:26,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:30:26,736 INFO L87 Difference]: Start difference. First operand 304 states and 780 transitions. Second operand 8 states. [2019-12-19 04:30:26,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:30:26,850 INFO L93 Difference]: Finished difference Result 466 states and 1239 transitions. [2019-12-19 04:30:26,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:30:26,850 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 04:30:26,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:30:26,853 INFO L225 Difference]: With dead ends: 466 [2019-12-19 04:30:26,853 INFO L226 Difference]: Without dead ends: 280 [2019-12-19 04:30:26,854 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 [2019-12-19 04:30:26,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-12-19 04:30:26,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2019-12-19 04:30:26,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-12-19 04:30:26,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 726 transitions. [2019-12-19 04:30:26,865 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 726 transitions. Word has length 34 [2019-12-19 04:30:26,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:30:26,866 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 726 transitions. [2019-12-19 04:30:26,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:30:26,866 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 726 transitions. [2019-12-19 04:30:26,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:30:26,868 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:30:26,872 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 04:30:26,873 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:30:26,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:30:26,874 INFO L82 PathProgramCache]: Analyzing trace with hash 72488813, now seen corresponding path program 3 times [2019-12-19 04:30:26,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:30:26,879 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840133773] [2019-12-19 04:30:26,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:30:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:30:26,987 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 04:30:26,988 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840133773] [2019-12-19 04:30:26,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:30:26,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:30:26,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341229339] [2019-12-19 04:30:26,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:30:26,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:30:26,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:30:26,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:30:26,990 INFO L87 Difference]: Start difference. First operand 280 states and 726 transitions. Second operand 7 states. [2019-12-19 04:30:27,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:30:27,084 INFO L93 Difference]: Finished difference Result 451 states and 1206 transitions. [2019-12-19 04:30:27,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:30:27,084 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 04:30:27,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:30:27,086 INFO L225 Difference]: With dead ends: 451 [2019-12-19 04:30:27,087 INFO L226 Difference]: Without dead ends: 253 [2019-12-19 04:30:27,087 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-12-19 04:30:27,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-12-19 04:30:27,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2019-12-19 04:30:27,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2019-12-19 04:30:27,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 672 transitions. [2019-12-19 04:30:27,096 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 672 transitions. Word has length 34 [2019-12-19 04:30:27,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:30:27,097 INFO L462 AbstractCegarLoop]: Abstraction has 253 states and 672 transitions. [2019-12-19 04:30:27,097 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:30:27,097 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 672 transitions. [2019-12-19 04:30:27,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:30:27,098 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:30:27,098 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 04:30:27,098 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:30:27,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:30:27,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1548790957, now seen corresponding path program 4 times [2019-12-19 04:30:27,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:30:27,099 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513476562] [2019-12-19 04:30:27,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:30:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:30:27,254 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 04:30:27,254 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513476562] [2019-12-19 04:30:27,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:30:27,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:30:27,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541940951] [2019-12-19 04:30:27,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:30:27,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:30:27,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:30:27,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:30:27,257 INFO L87 Difference]: Start difference. First operand 253 states and 672 transitions. Second operand 8 states. [2019-12-19 04:30:27,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:30:27,353 INFO L93 Difference]: Finished difference Result 199 states and 510 transitions. [2019-12-19 04:30:27,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:30:27,353 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 04:30:27,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:30:27,354 INFO L225 Difference]: With dead ends: 199 [2019-12-19 04:30:27,354 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:30:27,354 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 [2019-12-19 04:30:27,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:30:27,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:30:27,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:30:27,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:30:27,355 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 04:30:27,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:30:27,356 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:30:27,356 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:30:27,356 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:30:27,356 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:30:27,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:30:27 BasicIcfg [2019-12-19 04:30:27,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:30:27,367 INFO L168 Benchmark]: Toolchain (without parser) took 4101.94 ms. Allocated memory was 147.3 MB in the beginning and 245.4 MB in the end (delta: 98.0 MB). Free memory was 102.7 MB in the beginning and 119.7 MB in the end (delta: -17.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:30:27,374 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 147.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-19 04:30:27,377 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.92 ms. Allocated memory was 147.3 MB in the beginning and 207.1 MB in the end (delta: 59.8 MB). Free memory was 102.3 MB in the beginning and 164.3 MB in the end (delta: -62.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:30:27,377 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.82 ms. Allocated memory is still 207.1 MB. Free memory was 164.3 MB in the beginning and 162.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:30:27,378 INFO L168 Benchmark]: Boogie Preprocessor took 25.08 ms. Allocated memory is still 207.1 MB. Free memory was 162.3 MB in the beginning and 160.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-19 04:30:27,379 INFO L168 Benchmark]: RCFGBuilder took 465.78 ms. Allocated memory is still 207.1 MB. Free memory was 160.4 MB in the beginning and 139.9 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-19 04:30:27,382 INFO L168 Benchmark]: TraceAbstraction took 2776.57 ms. Allocated memory was 207.1 MB in the beginning and 245.4 MB in the end (delta: 38.3 MB). Free memory was 139.9 MB in the beginning and 119.7 MB in the end (delta: 20.2 MB). Peak memory consumption was 58.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:30:27,395 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 147.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 769.92 ms. Allocated memory was 147.3 MB in the beginning and 207.1 MB in the end (delta: 59.8 MB). Free memory was 102.3 MB in the beginning and 164.3 MB in the end (delta: -62.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.82 ms. Allocated memory is still 207.1 MB. Free memory was 164.3 MB in the beginning and 162.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.08 ms. Allocated memory is still 207.1 MB. Free memory was 162.3 MB in the beginning and 160.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 465.78 ms. Allocated memory is still 207.1 MB. Free memory was 160.4 MB in the beginning and 139.9 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2776.57 ms. Allocated memory was 207.1 MB in the beginning and 245.4 MB in the end (delta: 38.3 MB). Free memory was 139.9 MB in the beginning and 119.7 MB in the end (delta: 20.2 MB). Peak memory consumption was 58.4 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: 2.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 341 SDtfs, 435 SDslu, 919 SDs, 0 SdLazy, 124 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.8s 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, 7 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 22035 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...