/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:07:51,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:07:51,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:07:51,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:07:51,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:07:51,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:07:51,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:07:51,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:07:51,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:07:51,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:07:51,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:07:51,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:07:51,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:07:51,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:07:51,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:07:51,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:07:51,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:07:51,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:07:51,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:07:51,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:07:51,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:07:51,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:07:51,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:07:51,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:07:51,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:07:51,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:07:51,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:07:51,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:07:51,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:07:51,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:07:51,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:07:51,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:07:51,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:07:51,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:07:51,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:07:51,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:07:51,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:07:51,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:07:51,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:07:51,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:07:51,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:07:51,214 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 12:07:51,236 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:07:51,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:07:51,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:07:51,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:07:51,238 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:07:51,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:07:51,238 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:07:51,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:07:51,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:07:51,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:07:51,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:07:51,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:07:51,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:07:51,240 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:07:51,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:07:51,240 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:07:51,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:07:51,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:07:51,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:07:51,241 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:07:51,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:07:51,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:07:51,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:07:51,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:07:51,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:07:51,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:07:51,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:07:51,242 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:07:51,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:07:51,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:07:51,525 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:07:51,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:07:51,530 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:07:51,530 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:07:51,531 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2020-10-16 12:07:51,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/48b8a3160/5931ab04e7f446feb181805ac3e729dd/FLAG05384c957 [2020-10-16 12:07:52,153 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:07:52,154 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2020-10-16 12:07:52,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/48b8a3160/5931ab04e7f446feb181805ac3e729dd/FLAG05384c957 [2020-10-16 12:07:52,488 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/48b8a3160/5931ab04e7f446feb181805ac3e729dd [2020-10-16 12:07:52,498 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:07:52,500 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:07:52,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:07:52,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:07:52,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:07:52,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:07:52" (1/1) ... [2020-10-16 12:07:52,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53a6f1d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:52, skipping insertion in model container [2020-10-16 12:07:52,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:07:52" (1/1) ... [2020-10-16 12:07:52,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:07:52,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:07:53,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:07:53,061 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:07:53,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:07:53,202 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:07:53,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:53 WrapperNode [2020-10-16 12:07:53,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:07:53,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:07:53,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:07:53,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:07:53,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:53" (1/1) ... [2020-10-16 12:07:53,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:53" (1/1) ... [2020-10-16 12:07:53,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:07:53,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:07:53,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:07:53,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:07:53,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:53" (1/1) ... [2020-10-16 12:07:53,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:53" (1/1) ... [2020-10-16 12:07:53,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:53" (1/1) ... [2020-10-16 12:07:53,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:53" (1/1) ... [2020-10-16 12:07:53,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:53" (1/1) ... [2020-10-16 12:07:53,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:53" (1/1) ... [2020-10-16 12:07:53,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:53" (1/1) ... [2020-10-16 12:07:53,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:07:53,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:07:53,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:07:53,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:07:53,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:07:53,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:07:53,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:07:53,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:07:53,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:07:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:07:53,336 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:07:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:07:53,336 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:07:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 12:07:53,336 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 12:07:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:07:53,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:07:53,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:07:53,338 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:07:53,708 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:07:53,708 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 12:07:53,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:07:53 BoogieIcfgContainer [2020-10-16 12:07:53,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:07:53,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:07:53,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:07:53,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:07:53,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:07:52" (1/3) ... [2020-10-16 12:07:53,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d25480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:07:53, skipping insertion in model container [2020-10-16 12:07:53,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:53" (2/3) ... [2020-10-16 12:07:53,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d25480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:07:53, skipping insertion in model container [2020-10-16 12:07:53,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:07:53" (3/3) ... [2020-10-16 12:07:53,720 INFO L111 eAbstractionObserver]: Analyzing ICFG safe004_tso.opt.i [2020-10-16 12:07:53,731 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:07:53,731 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:07:53,739 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 12:07:53,740 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:07:53,767 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,768 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,768 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,768 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,769 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,769 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,770 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,770 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,770 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,770 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,771 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,771 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,772 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,772 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,772 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,772 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,773 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,773 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,785 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,786 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,788 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,789 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,789 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,789 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:07:53,792 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:07:53,806 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 12:07:53,824 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:07:53,824 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:07:53,824 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:07:53,825 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:07:53,825 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:07:53,825 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:07:53,825 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:07:53,825 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:07:53,837 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:07:53,838 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 12:07:53,840 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 12:07:53,842 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-16 12:07:53,885 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-16 12:07:53,886 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:07:53,891 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 12:07:53,893 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 12:07:55,245 INFO L132 LiptonReduction]: Checked pairs total: 2581 [2020-10-16 12:07:55,245 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-16 12:07:55,254 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-16 12:07:55,295 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-16 12:07:55,297 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-16 12:07:55,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 12:07:55,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:07:55,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:07:55,324 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:07:55,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:07:55,331 INFO L82 PathProgramCache]: Analyzing trace with hash -245765301, now seen corresponding path program 1 times [2020-10-16 12:07:55,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:07:55,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864151282] [2020-10-16 12:07:55,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:07:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:07:55,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:07:55,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864151282] [2020-10-16 12:07:55,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:07:55,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:07:55,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375591571] [2020-10-16 12:07:55,587 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:07:55,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:07:55,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:07:55,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:07:55,603 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-16 12:07:55,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:07:55,652 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-16 12:07:55,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:07:55,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 12:07:55,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:07:55,670 INFO L225 Difference]: With dead ends: 290 [2020-10-16 12:07:55,670 INFO L226 Difference]: Without dead ends: 226 [2020-10-16 12:07:55,671 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:07:55,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-16 12:07:55,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-16 12:07:55,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-16 12:07:55,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-16 12:07:55,739 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-16 12:07:55,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:07:55,740 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-16 12:07:55,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:07:55,741 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-16 12:07:55,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:07:55,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:07:55,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:07:55,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:07:55,743 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:07:55,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:07:55,743 INFO L82 PathProgramCache]: Analyzing trace with hash 956609449, now seen corresponding path program 1 times [2020-10-16 12:07:55,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:07:55,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852221416] [2020-10-16 12:07:55,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:07:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:07:55,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:07:55,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852221416] [2020-10-16 12:07:55,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:07:55,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:07:55,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422376051] [2020-10-16 12:07:55,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:07:55,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:07:55,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:07:55,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:07:55,861 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-10-16 12:07:55,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:07:55,884 INFO L93 Difference]: Finished difference Result 212 states and 578 transitions. [2020-10-16 12:07:55,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:07:55,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 12:07:55,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:07:55,889 INFO L225 Difference]: With dead ends: 212 [2020-10-16 12:07:55,889 INFO L226 Difference]: Without dead ends: 212 [2020-10-16 12:07:55,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:07:55,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-16 12:07:55,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-10-16 12:07:55,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-10-16 12:07:55,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 578 transitions. [2020-10-16 12:07:55,931 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 578 transitions. Word has length 9 [2020-10-16 12:07:55,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:07:55,931 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 578 transitions. [2020-10-16 12:07:55,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:07:55,931 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 578 transitions. [2020-10-16 12:07:55,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 12:07:55,939 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:07:55,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:07:55,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:07:55,940 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:07:55,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:07:55,940 INFO L82 PathProgramCache]: Analyzing trace with hash -409878926, now seen corresponding path program 1 times [2020-10-16 12:07:55,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:07:55,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340963675] [2020-10-16 12:07:55,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:07:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:07:56,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:07:56,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340963675] [2020-10-16 12:07:56,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:07:56,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:07:56,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878033731] [2020-10-16 12:07:56,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:07:56,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:07:56,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:07:56,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:07:56,052 INFO L87 Difference]: Start difference. First operand 212 states and 578 transitions. Second operand 4 states. [2020-10-16 12:07:56,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:07:56,080 INFO L93 Difference]: Finished difference Result 293 states and 785 transitions. [2020-10-16 12:07:56,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:07:56,081 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-16 12:07:56,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:07:56,083 INFO L225 Difference]: With dead ends: 293 [2020-10-16 12:07:56,084 INFO L226 Difference]: Without dead ends: 197 [2020-10-16 12:07:56,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:07:56,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-10-16 12:07:56,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2020-10-16 12:07:56,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-10-16 12:07:56,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 525 transitions. [2020-10-16 12:07:56,100 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 525 transitions. Word has length 10 [2020-10-16 12:07:56,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:07:56,100 INFO L481 AbstractCegarLoop]: Abstraction has 197 states and 525 transitions. [2020-10-16 12:07:56,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:07:56,101 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 525 transitions. [2020-10-16 12:07:56,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:07:56,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:07:56,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:07:56,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:07:56,104 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:07:56,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:07:56,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1131193343, now seen corresponding path program 1 times [2020-10-16 12:07:56,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:07:56,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428999000] [2020-10-16 12:07:56,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:07:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:07:56,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:07:56,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428999000] [2020-10-16 12:07:56,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:07:56,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:07:56,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636544673] [2020-10-16 12:07:56,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:07:56,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:07:56,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:07:56,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:07:56,163 INFO L87 Difference]: Start difference. First operand 197 states and 525 transitions. Second operand 3 states. [2020-10-16 12:07:56,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:07:56,177 INFO L93 Difference]: Finished difference Result 269 states and 681 transitions. [2020-10-16 12:07:56,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:07:56,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 12:07:56,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:07:56,180 INFO L225 Difference]: With dead ends: 269 [2020-10-16 12:07:56,180 INFO L226 Difference]: Without dead ends: 209 [2020-10-16 12:07:56,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:07:56,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-10-16 12:07:56,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 191. [2020-10-16 12:07:56,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-16 12:07:56,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 476 transitions. [2020-10-16 12:07:56,193 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 476 transitions. Word has length 11 [2020-10-16 12:07:56,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:07:56,193 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 476 transitions. [2020-10-16 12:07:56,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:07:56,193 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 476 transitions. [2020-10-16 12:07:56,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:07:56,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:07:56,195 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:07:56,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:07:56,195 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:07:56,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:07:56,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1251156259, now seen corresponding path program 1 times [2020-10-16 12:07:56,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:07:56,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863121721] [2020-10-16 12:07:56,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:07:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:07:56,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:07:56,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863121721] [2020-10-16 12:07:56,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:07:56,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:07:56,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031749788] [2020-10-16 12:07:56,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:07:56,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:07:56,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:07:56,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:07:56,237 INFO L87 Difference]: Start difference. First operand 191 states and 476 transitions. Second operand 4 states. [2020-10-16 12:07:56,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:07:56,274 INFO L93 Difference]: Finished difference Result 250 states and 578 transitions. [2020-10-16 12:07:56,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:07:56,274 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 12:07:56,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:07:56,276 INFO L225 Difference]: With dead ends: 250 [2020-10-16 12:07:56,276 INFO L226 Difference]: Without dead ends: 158 [2020-10-16 12:07:56,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:07:56,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-16 12:07:56,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 146. [2020-10-16 12:07:56,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-16 12:07:56,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 330 transitions. [2020-10-16 12:07:56,285 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 330 transitions. Word has length 11 [2020-10-16 12:07:56,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:07:56,285 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 330 transitions. [2020-10-16 12:07:56,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:07:56,286 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 330 transitions. [2020-10-16 12:07:56,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:07:56,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:07:56,287 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:07:56,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:07:56,287 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:07:56,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:07:56,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1304596236, now seen corresponding path program 1 times [2020-10-16 12:07:56,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:07:56,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653396841] [2020-10-16 12:07:56,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:07:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:07:56,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:07:56,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653396841] [2020-10-16 12:07:56,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:07:56,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:07:56,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360533490] [2020-10-16 12:07:56,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:07:56,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:07:56,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:07:56,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:07:56,338 INFO L87 Difference]: Start difference. First operand 146 states and 330 transitions. Second operand 3 states. [2020-10-16 12:07:56,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:07:56,348 INFO L93 Difference]: Finished difference Result 138 states and 304 transitions. [2020-10-16 12:07:56,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:07:56,349 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 12:07:56,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:07:56,350 INFO L225 Difference]: With dead ends: 138 [2020-10-16 12:07:56,351 INFO L226 Difference]: Without dead ends: 138 [2020-10-16 12:07:56,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:07:56,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-16 12:07:56,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-10-16 12:07:56,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-16 12:07:56,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 304 transitions. [2020-10-16 12:07:56,357 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 304 transitions. Word has length 11 [2020-10-16 12:07:56,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:07:56,357 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 304 transitions. [2020-10-16 12:07:56,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:07:56,358 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 304 transitions. [2020-10-16 12:07:56,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:07:56,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:07:56,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:07:56,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:07:56,359 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:07:56,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:07:56,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1787779324, now seen corresponding path program 1 times [2020-10-16 12:07:56,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:07:56,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636043347] [2020-10-16 12:07:56,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:07:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:07:56,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:07:56,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636043347] [2020-10-16 12:07:56,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:07:56,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:07:56,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524042788] [2020-10-16 12:07:56,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:07:56,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:07:56,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:07:56,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:07:56,409 INFO L87 Difference]: Start difference. First operand 138 states and 304 transitions. Second operand 3 states. [2020-10-16 12:07:56,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:07:56,422 INFO L93 Difference]: Finished difference Result 146 states and 304 transitions. [2020-10-16 12:07:56,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:07:56,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-16 12:07:56,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:07:56,423 INFO L225 Difference]: With dead ends: 146 [2020-10-16 12:07:56,423 INFO L226 Difference]: Without dead ends: 56 [2020-10-16 12:07:56,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:07:56,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-16 12:07:56,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-16 12:07:56,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-16 12:07:56,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 108 transitions. [2020-10-16 12:07:56,427 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 108 transitions. Word has length 12 [2020-10-16 12:07:56,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:07:56,427 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 108 transitions. [2020-10-16 12:07:56,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:07:56,427 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 108 transitions. [2020-10-16 12:07:56,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:07:56,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:07:56,428 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:07:56,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:07:56,429 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:07:56,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:07:56,429 INFO L82 PathProgramCache]: Analyzing trace with hash 413447767, now seen corresponding path program 1 times [2020-10-16 12:07:56,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:07:56,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931759108] [2020-10-16 12:07:56,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:07:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:07:56,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:07:56,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931759108] [2020-10-16 12:07:56,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:07:56,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:07:56,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629738152] [2020-10-16 12:07:56,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:07:56,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:07:56,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:07:56,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:07:56,462 INFO L87 Difference]: Start difference. First operand 56 states and 108 transitions. Second operand 4 states. [2020-10-16 12:07:56,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:07:56,483 INFO L93 Difference]: Finished difference Result 64 states and 120 transitions. [2020-10-16 12:07:56,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:07:56,484 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 12:07:56,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:07:56,485 INFO L225 Difference]: With dead ends: 64 [2020-10-16 12:07:56,485 INFO L226 Difference]: Without dead ends: 52 [2020-10-16 12:07:56,485 INFO L677 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 [2020-10-16 12:07:56,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-16 12:07:56,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-16 12:07:56,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-16 12:07:56,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 96 transitions. [2020-10-16 12:07:56,487 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 96 transitions. Word has length 13 [2020-10-16 12:07:56,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:07:56,488 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 96 transitions. [2020-10-16 12:07:56,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:07:56,488 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2020-10-16 12:07:56,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:07:56,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:07:56,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:07:56,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:07:56,489 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:07:56,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:07:56,490 INFO L82 PathProgramCache]: Analyzing trace with hash 413415217, now seen corresponding path program 2 times [2020-10-16 12:07:56,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:07:56,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986369766] [2020-10-16 12:07:56,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:07:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:07:56,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:07:56,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986369766] [2020-10-16 12:07:56,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:07:56,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:07:56,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019684899] [2020-10-16 12:07:56,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:07:56,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:07:56,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:07:56,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:07:56,562 INFO L87 Difference]: Start difference. First operand 52 states and 96 transitions. Second operand 4 states. [2020-10-16 12:07:56,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:07:56,585 INFO L93 Difference]: Finished difference Result 57 states and 96 transitions. [2020-10-16 12:07:56,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:07:56,586 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 12:07:56,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:07:56,586 INFO L225 Difference]: With dead ends: 57 [2020-10-16 12:07:56,587 INFO L226 Difference]: Without dead ends: 43 [2020-10-16 12:07:56,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:07:56,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-16 12:07:56,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-16 12:07:56,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-16 12:07:56,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 70 transitions. [2020-10-16 12:07:56,589 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 70 transitions. Word has length 13 [2020-10-16 12:07:56,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:07:56,590 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 70 transitions. [2020-10-16 12:07:56,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:07:56,590 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 70 transitions. [2020-10-16 12:07:56,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 12:07:56,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:07:56,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:07:56,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:07:56,591 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:07:56,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:07:56,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1574125730, now seen corresponding path program 1 times [2020-10-16 12:07:56,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:07:56,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400350812] [2020-10-16 12:07:56,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:07:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:07:56,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:07:56,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400350812] [2020-10-16 12:07:56,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:07:56,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:07:56,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621776702] [2020-10-16 12:07:56,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:07:56,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:07:56,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:07:56,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:07:56,641 INFO L87 Difference]: Start difference. First operand 43 states and 70 transitions. Second operand 5 states. [2020-10-16 12:07:56,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:07:56,669 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2020-10-16 12:07:56,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:07:56,670 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-16 12:07:56,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:07:56,670 INFO L225 Difference]: With dead ends: 39 [2020-10-16 12:07:56,671 INFO L226 Difference]: Without dead ends: 31 [2020-10-16 12:07:56,671 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:07:56,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-16 12:07:56,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-16 12:07:56,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-16 12:07:56,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 44 transitions. [2020-10-16 12:07:56,673 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 44 transitions. Word has length 14 [2020-10-16 12:07:56,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:07:56,673 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 44 transitions. [2020-10-16 12:07:56,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:07:56,673 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2020-10-16 12:07:56,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 12:07:56,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:07:56,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:07:56,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 12:07:56,674 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:07:56,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:07:56,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1126720068, now seen corresponding path program 1 times [2020-10-16 12:07:56,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:07:56,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010706388] [2020-10-16 12:07:56,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:07:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:07:56,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:07:56,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010706388] [2020-10-16 12:07:56,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:07:56,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:07:56,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383385919] [2020-10-16 12:07:56,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:07:56,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:07:56,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:07:56,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:07:56,732 INFO L87 Difference]: Start difference. First operand 31 states and 44 transitions. Second operand 6 states. [2020-10-16 12:07:56,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:07:56,753 INFO L93 Difference]: Finished difference Result 28 states and 41 transitions. [2020-10-16 12:07:56,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:07:56,753 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-16 12:07:56,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:07:56,754 INFO L225 Difference]: With dead ends: 28 [2020-10-16 12:07:56,754 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 12:07:56,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:07:56,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 12:07:56,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 12:07:56,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 12:07:56,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 12:07:56,755 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-16 12:07:56,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:07:56,755 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 12:07:56,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:07:56,756 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 12:07:56,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 12:07:56,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 12:07:56,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:07:56 BasicIcfg [2020-10-16 12:07:56,760 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:07:56,762 INFO L168 Benchmark]: Toolchain (without parser) took 4261.78 ms. Allocated memory was 139.5 MB in the beginning and 248.0 MB in the end (delta: 108.5 MB). Free memory was 101.5 MB in the beginning and 180.2 MB in the end (delta: -78.7 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2020-10-16 12:07:56,763 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 12:07:56,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.84 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 101.3 MB in the beginning and 159.4 MB in the end (delta: -58.1 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-10-16 12:07:56,765 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.25 ms. Allocated memory is still 202.4 MB. Free memory was 159.4 MB in the beginning and 156.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-16 12:07:56,766 INFO L168 Benchmark]: Boogie Preprocessor took 23.84 ms. Allocated memory is still 202.4 MB. Free memory was 156.8 MB in the beginning and 155.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 12:07:56,766 INFO L168 Benchmark]: RCFGBuilder took 441.24 ms. Allocated memory is still 202.4 MB. Free memory was 155.5 MB in the beginning and 133.7 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-10-16 12:07:56,767 INFO L168 Benchmark]: TraceAbstraction took 3047.35 ms. Allocated memory was 202.4 MB in the beginning and 248.0 MB in the end (delta: 45.6 MB). Free memory was 133.0 MB in the beginning and 180.2 MB in the end (delta: -47.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:07:56,771 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 702.84 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 101.3 MB in the beginning and 159.4 MB in the end (delta: -58.1 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 41.25 ms. Allocated memory is still 202.4 MB. Free memory was 159.4 MB in the beginning and 156.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.84 ms. Allocated memory is still 202.4 MB. Free memory was 156.8 MB in the beginning and 155.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 441.24 ms. Allocated memory is still 202.4 MB. Free memory was 155.5 MB in the beginning and 133.7 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3047.35 ms. Allocated memory was 202.4 MB in the beginning and 248.0 MB in the end (delta: 45.6 MB). Free memory was 133.0 MB in the beginning and 180.2 MB in the end (delta: -47.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 664 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 34 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 77 PlacesBefore, 31 PlacesAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2581 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 214 SDtfs, 122 SDslu, 202 SDs, 0 SdLazy, 98 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 11 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 3810 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...